Journal articles: 'P. Fasciatum'

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Navarro, Rodrigo Diana, Juliana Ventorim Lemos, and Marcela Tosta Ribeiro. "Quality of semen in the reproductive cycle of Cachara (Pseudoplatystoma fasciatum) raised in captivity." Acta Scientiarum. Biological Sciences 41 (December 6, 2019): e46517. http://dx.doi.org/10.4025/actascibiolsci.v41i1.46517.

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In this study, we evaluated the semen quality of Cachara (Pseudoplatystoma fasciatum) raised in captivity during its reproductive period. For the evaluation of qualitative parameters, we analyzed: sperm morphology, sperm motility, and sperm vigor; while for the quantitative parameter, we analyzed sperm concentration. In general, the main significant difference was found in March, with a motility rate of 40% and a duration of 39 seconds. The highest mean concentration (1.2x10⁸) was observed in February, as well as the highest percentage of defects in the intermediate part of the spermatozoa (59%). The morphological analysis of spermatozoa showed an average of 24.2% abnormalities in the head and 22.7% in the intermediate part of spermatozoa of P. fasciatum for the four months studied. We did not find any evident relationship between the climate changes evaluated and the qualitative and quantitative parameters. The greatest difference between the percentage of normal spermatozoa and the sharp increase of defects in the intermediate piece, observed in February, can be explained by the sudden climate change, with a significant decrease in temperature and relative humidity, and increase in precipitation. These findings demonstrate the importance of maintaining an optimum climate interval during the breeding season for P. fasciatum.

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Campos, Cristiane M. de, Julieta R. E. de Moraes, and Flávio R. de Moraes. "Histopatologia de fígado, rim e baço de piaractus mesopotamicus, prochilodus lineatus e pseudoplatystoma fasciatum parasitados por myxosporídios, capturados no Rio Aquidauana, Mato Grosso do Sul, Brasil." Revista Brasileira de Parasitologia Veterinária 17, no. 4 (December 2008): 200–205. http://dx.doi.org/10.1590/s1984-29612008000400006.

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Este estudo descreveu a histopatologia de rim, baço e fígado de Piaractus mesopotamicus, Prochilodus lineatus e Pseudoplatystoma fasciatum, parasitados por mixosporídios, capturados no Rio Aquidauana, MS. Após necropsia, amostras do fígado, rim cefálico e baço foram colhidas, fixadas em formalina a 10 % tamponada e processadas de acordo com a rotina histológica. Os cortes foram feitos à espessura de 5 μm e corados com hematoxilina-eosina. Foram encontrados Myxobolus porofilus em P. lineatus, M. colossomatis em P. mesopotamicus e Myxobolus spp. nas três espécies de hospedeiros. Cistos de mixosporídios no exame histopatológico foram vistos no fígado e baço de P. mesopotamicus. Mais de 50% das amostras de fígado de P mesopotamicus e P lineatus apresentou hepatodistrofia difusa. Mais de 80 % das amostras de fígado de P. fasciatum apresentou formações hialinas concêntricas e esteatose em 50% das amostras. Em 95,23 % das amostras de rins de P. mesopotamicus, foram observadas alterações teciduais, e em mais de 60 % dos casos nefrodistrofia difusa moderada e congestão de sinusóides glomerulares. Alterações teciduais nas amostras de rins de P. lineatus foram observadas em menos de 20 % da amostra. No baço dos peixes ora examinados não foram encontradas lesões dignas de relato.

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Tomé, E., M. Kodaira, and Y. Matsunaga. "Efecto de las condiciones de procesamiento, contenido de grasa y grado de frescura de la materia prima en la calidad de filetes de bagre ahumados / Effect of processing conditions, lipids content and freshness on acceptability of smoked catfish." Food Science and Technology International 5, no. 2 (April 1999): 167–76. http://dx.doi.org/10.1177/108201329900500206.

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This work has evaluated the effect of processing conditions on the acceptance of smoked catfish (P. fasciatum). The processing variables studied were thickness (1.9 and 3.6 cm), salting time (30, 60 and 90 min) and smoking time (4, 5 and 6 h at varying temperatures). The influence of the species (P. pirinampu and P. fasciatum) and the freshness of the fillets were also studied. Smoked fillets of 1.9 cm thickness had moisture contents significantly (p < 0.05) lower and the salt concentration was significantly greater than in the salted smoked fillets of 3.6 cm thickness. The thinner fillets received the greatest scores for texture and appearance. Concerning salting time, fillets salted for 30 min received the greatest score for overall acceptance. The greatest dehydration rate ocurred during the first 3 h of smoking at temperatures between 30 and 50°C. Color and texture of products with 5 h and 6 h of smoking were better than those with only 4 h. Lipids content greatly affected sensorial acceptance of smoked products; fillets from P. pirinampu, a fatty fish, received the lowest score for all the sensory attributes evaluated. The loss of freshness of raw fish affected negatively the odor, appearance and overall acceptance of the products.

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Hahn, Lisiane, Karl English, Joachim Carosfeld, Luiz Gustavo Martins da Silva, João Dirço Latini, Angelo Antônio Agostinho, and Domingo Rodriguez Fernandez. "Preliminary study on the application of radio-telemetry techniques to evaluate movements of fish in the Lateral canal at Itaipu Dam, Brazil." Neotropical Ichthyology 5, no. 2 (2007): 103–8. http://dx.doi.org/10.1590/s1679-62252007000200003.

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A preliminary study on the application of radio-telemetry techniques to describe the movements of fish in a bypass channel at Itaipu Dam (Paraná River), known as "Canal da Piracema," was carried out between January and February of 2004. Fourteen individuals of six species (Prochilodus lineatus, Leporinus friderici, Schizodon borellii, Pseudoplatystoma fasciatum, Pterodoras granulosus and Cichla kelberi) were intragastrically and surgically radiotagged and monitored by three experimental fixed radio-telemetry stations installed in the upper portion of the Canal. The surgical implantation of transmitters and the anesthesia using clove oil proved to be more efficient and allowed easier handling in comparison to intragastric implantation and electronarcosis immobilization. The use of fixed stations to obtain data was found to be very suitable for tracking movements of several different fish species in the Itaipu lateral channel. Three species (P. granulosus, S. borellii and C. kelberi) moved downstream after release. Two individuals of P. fasciatum and two of P. lineatus migrated upstream, leaving the channel 7 and 10 days and 2 and 24 days after release, respectively. Leporinus friderici was the only species that did not leave the release site until the end of the study period.

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BUITRAGO–SUÁREZ, URIEL ANGEL, and BROOKS M. BURR. "Taxonomy of the catfish genus Pseudoplatystoma Bleeker (Siluriformes: Pimelodidae) with recognition of eight species." Zootaxa 1512, no. 1 (June 21, 2007): 1–38. http://dx.doi.org/10.11646/zootaxa.1512.1.1.

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The genus Pseudoplatystoma Bleeker consists of three species long recognized as: P. fasciatum (Linnaeus), P. tigrinum (Valenciennes), and P. corruscans (Spix & Agassiz), and five species recently recognized or described here: P. punctifer (Castelnau), P. reticulatum Eigenmann & Eigenmann, P. orinocoense n. sp., P. metaense n. sp., and P. magdaleniatum n. sp. The eight species form a monophyletic group with two clades that are supported by anatomical features (i.e., skeletal anatomy and myology). One clade (P. tigrinum and P. metaense) is restricted to the Orinoco and Amazon basins, and the other clade, comprised of the remaining six species, is found in the Guyanas, Orinoco, Amazon, and Paraná basins. The species are diagnosed on the basis of body shape, color pattern (e.g., bars, loops, and spots), skeletal anatomy, and vertebral numbers. Pseudoplatystoma punctifer and P. tigrinum) are sympatric in the Amazon Basin, P. metaense and P. orinocoense in the Orinoco Basin, and P. corruscans and P. reticulatum, are sympatric in the Paraná. Pseudoplatystoma magdaleniatum (Magdalena basin) and P. fasciatum (Guyanas) each occur as the only species of Pseudoplatystoma in their respective individual ranges. Pseudoplatystoma reticulatum may be sympatric with the two other species in the Amazon Basin, but we have no records of them being captured together in the mainstream or tributaries. All eight species are used as food in both commercial and subsistence fishing, and there is a moderate–sized ornamental fish market for the young and juveniles. A key to adults of the eight species is included.

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Silva, Bruno Correa da, Adolfo Jatobá, Felipe do Nascimento Vieira, José Luiz Pedreira Mouriño, Norha Bolívar, Walter Quadros Seiffert, and Mauricio Laterça Martins. "Immunization of hybrid surubim (Pseudoplatystoma corruscans x P. fasciatum) against Motile Aeromonas hydrophila septicemia." Brazilian Archives of Biology and Technology 56, no. 1 (February 2013): 81–84. http://dx.doi.org/10.1590/s1516-89132013000100010.

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GUERRA-GRANDEZ, Franco, Fabiola LOZANO-ANCANI, Carmen Rosa GARCÍA-DÁVILA, Luciano RODRÍGUEZ-CHU, Rosana CUBAS-GUERRA, David PANDURO-TAFUR, and Fred William CHU-KOO. "EFECTO DE TRES FRECUENCIAS DE ALIMENTACIÓN EN EL CRECIMIENTO, UTILIZACIÓN DE ALIMENTO Y SOBREVIVENCIA DE JUVENILES DE DONCELLA Pseudoplatystoma fasciatum (Linnaeus, 1766)." Folia Amazónica 18, no. 1-2 (December 31, 2009): 81. http://dx.doi.org/10.24841/fa.v18i1-2.329.

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La doncella Pseudoplatystoma fasciatum (Linnaeus, 1766), especie que tiene una amplia distribución en Sudamérica, es un pez, que por la calidad de su carne y su rápido crecimiento viene despertando el interés del sector acuícola, principalmente en países como Brasil, Colombia y el Perú. La agencia gubernamental peruana PROMPERU, viene buscando mercados para la carne de este pez y al mismo tiempo articulando con otros actores, el desarrollo de planes e investigaciones para el establecimiento de una oferta exportable de su filete. Uno de estos actores, es el Instituto de Investigaciones de la Amazonía Peruana–IIAP, institución que viene desarrollando una serie de estudios que lleven a la generación de tecnologías para el cultivo de la doncella. El objetivo del presente trabajo fue evaluar los posibles efectos de tres frecuencias de alimentación (FA2, FA4 y FA6) sobre el crecimiento, utilización del alimento y sobrevivencia de juveniles de doncella (P. fasciatum) alimentados con una dieta peletizada (42% PB) durante 45 días. Al final del estudio, no se registraron diferencias significativas (P>0.05) en los índices de crecimiento, utilización de alimento, ni en los niveles de sobrevivencia de los peces como efecto de la aplicación de las tres frecuencias de alimentación (2, 4 y 6 veces/día). En conclusión, juveniles de doncella, de 20 g de peso promedio, sólo necesitarían ser alimentados dos veces al día, lo que permitirá al acuicultor obtener un adecuado rendimiento productivo de los peces, con un mínimo requerimiento de mano de obra.

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GUERRA-GRANDEZ, Franco, Fabiola LOZANO-ANCANI, Carmen Rosa GARCÍA-DÁVILA, Luciano RODRÍGUEZ-CHU, Rosana CUBAS-GUERRA, David PANDURO-TAFUR, and Fred William CHU-KOO. "EFECTO DE TRES FRECUENCIAS DE ALIMENTACIÓN EN EL CRECIMIENTO, UTILIZACIÓN DE ALIMENTO Y SOBREVIVENCIA DE JUVENILES DE DONCELLA Pseudoplatystoma fasciatum (Linnaeus, 1766)." Folia Amazónica 18, no. 1-2 (December 31, 2009): 81. http://dx.doi.org/10.24841/fa.v18i1-2.330.

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La doncella Pseudoplatystoma fasciatum (Linnaeus, 1766), especie que tiene una amplia distribución en Sudamérica, es un pez, que por la calidad de su carne y su rápido crecimiento viene despertando el interés del sector acuícola, principalmente en países como Brasil, Colombia y el Perú. La agencia gubernamental peruana PROMPERU, viene buscando mercados para la carne de este pez y al mismo tiempo articulando con otros actores, el desarrollo de planes e investigaciones para el establecimiento de una oferta exportable de su filete. Uno de estos actores, es el Instituto de Investigaciones de la Amazonía Peruana–IIAP, institución que viene desarrollando una serie de estudios que lleven a la generación de tecnologías para el cultivo de la doncella. El objetivo del presente trabajo fue evaluar los posibles efectos de tres frecuencias de alimentación (FA2, FA4 y FA6) sobre el crecimiento, utilización del alimento y sobrevivencia de juveniles de doncella (P. fasciatum) alimentados con una dieta peletizada (42% PB) durante 45 días. Al final del estudio, no se registraron diferencias significativas (P>0.05) en los índices de crecimiento, utilización de alimento, ni en los niveles de sobrevivencia de los peces como efecto de la aplicación de las tres frecuencias de alimentación (2, 4 y 6 veces/día). En conclusión, juveniles de doncella, de 20 g de peso promedio, sólo necesitarían ser alimentados dos veces al día, lo que permitirá al acuicultor obtener un adecuado rendimiento productivo de los peces, con un mínimo requerimiento de mano de obra.

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Campos, CM, VE Fonseca, RM Takemoto, and FR Moraes. "Ecology of the parasitic endohelminth community of Pseudoplatystoma fasciatum (Linnaeus, 1776) (Siluriformes: Pimelodidae) from the Aquidauana River, Pantanal, State of Mato Grosso do Sul, Brazil." Brazilian Journal of Biology 69, no. 1 (February 2009): 93–99. http://dx.doi.org/10.1590/s1519-69842009000100011.

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This study investigated the structure and diversity of the endohelminth community and its interactions with Pseudoplatystoma fasciatum, caught in the Aquidauana River, in the State of Mato Grosso do Sul, Brazil. Ten helminth species were represented in 1,228 specimens of parasites found in the intestine and mesentery of 33 specimens of P. fasciatum. Cestodes were observed in the intestine, while nematodes Cucullanus sp. in the mesentery. Contracaecum sp. Type 1, Spatulifer rugosa and Choanoscolex abscisus showed the highest mean intensity and mean abundance and Nomimoscolex sudobin showed the highest prevalence. Simpson's index indicated dominance in the endohelminth infracommunities (C = 1.0792) and Choanoscolex abscisus was considered the central species. A clumped pattern of dispersion according to Green's index was related. 69.69% of hosts analyzed had between 2 and 5 species of endohelminths. Mean diversity was H = 0.5517 (SD = 0.4209). Two pairs of species showed significant positive association and four pairs presented significant positive correlation among abundance data. Significant negative correlations between total length and prevalence and abundance of Peltydocotyle rugosa and Nomimoscolex sudobim were found. However, no significant correlation was observed between condition factor and abundance, as well as total length and diversity. There was significant prevalence of Harriscolex kaparari in male hosts.

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Silva-Acuña, Annie, and Alexander José Barrios. "Reproductive cycle of the barred sorubim Pseudoplatystoma fasciatum (Linnaeus, 1766), in the upper delta of the Orinoco River, Delta Amacuro State, Venezuela." Marine and Freshwater Research 65, no. 2 (2014): 124. http://dx.doi.org/10.1071/mf12244.

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Pseudoplatystoma fasciatum represents one of the most important items in the continental fisheries of Venezuela. The great fishing pressure exerted on this species has decimated the populations in the Orinoco River Delta and other regions of the country. The current condition of the population in the delta region is unknown and information about basic biological parameters is unavailable. Hence, population and reproductive parameters of this catfish were determined in this region. Results showed that the size interval was from 30 to 105 cm total length (TL), generally smaller than the size range found in other regions of the country. The largest value for the gonadal index for females was 116, recorded in July. Size at maturity of 50% of females was 46.38 cm TL, a smaller value than others reported for the Orinoco River Basin. Maturation of oocytes was synchronous, showing a single total spawning per year. The capture of P. fasciatum was continuous throughout the year, including mature individuals during the reproductive season, suggesting a possible utilization of the delta region as reproductive site. A total of 61% of the individuals were below the minimum legal size, indicating deficient management of this fishery resource in the Orinoco River Delta.

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RODRÍGUEZ-BRAVO, Javier, Adriana IGLESIAS-VÁSQUEZ, Jean François RENNO, Fernando ALCANTARA-BOCANEGRA, and Carmen Rosa GARCÍA-DÁVILA. "VARIABILIDAD GENÉTICA DE Pseudoplatystoma fasciatum (Linnaeus, 1766) Y Pseudoplatystoma tigrinum (Valenciennes, 1840), EN LA AMAZONÍA PERUANA." Folia Amazónica 16, no. 1-2 (December 31, 2007): 145. http://dx.doi.org/10.24841/fa.v16i1-2.284.

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La variabilidad genética de Pseudoplatystoma fasciatum y P. tigrinum fue estimada en tres localidades de la Amazonía peruana mediante las técnicas "Exon - Primed Intron - Croosing" (EPIC) y "Restriction Fragment Length Polymorphism (RFLP). Un total de 102 especímenes fueron analizados con tres sistemas intrónicos (Ck, RPEX y PmOPSI). El intron PmOPSI es diagnóstico para diferenciar ambas especies. Los tres intrones fueron digeridos con enzimas de restricción para analizar la variabilidad de secuencia observando el polimorfismo de longitud de los fragmentos de restricción (RFLP). Los resultados del Análisis Factorial de Correspondencia (AFC), índice de fijación (Fst= 0.43) y distancia genética (D = 0.76) entre ambas especies corroboraron la identidad genética de las mismas, sin híbridos naturales observado entre ellas. A nivel intraespecífico, los resultados encontrados por AFC, Fst ,y D mostraron en P.fasciatum como en P. tigrinum que la variabilidad genética observada no estás relacionada con la ubicación geográfica de las poblaciones. Los resultados podrían ser explicados por el caráctermigratorio y ladistribución de estas especies enlacuencaAmazónica

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Batlouni, Sergio Ricardo, Flávia Regina Carreño, Elizabeth Romagosa, and Maria Inês Borella. "Cell junctions in the germinal epithelium may play an important role in spermatogenesis of the catfish P. fasciatum (Pisces, Siluriformes)." Journal of Molecular Histology 36, no. 1-2 (February 2005): 97–110. http://dx.doi.org/10.1007/s10735-004-4115-0.

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Borrell, Asunción, Luis Cardona, Ramanathan P. Kumarran, and Alejandro Aguilar. "Trophic ecology of elasmobranchs caught off Gujarat, India, as inferred from stable isotopes." ICES Journal of Marine Science 68, no. 3 (December 12, 2010): 547–54. http://dx.doi.org/10.1093/icesjms/fsq170.

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Abstract Borrell, A., Cardona, L., Kumarran, R. P., and Aguilar, A. 2011. Trophic ecology of elasmobranchs caught off Gujarat, India, as inferred from stable isotopes. – ICES Journal of Marine Science, 68: . Habitat use and trophic levels were investigated in 13 species of elasmobranch caught off Gujarat, India, through their isotopic composition. Most of the animals were fished commercially and were immature, suggesting that fisheries operate in nursery habitats. All of the sharks analysed except Rhincodon typus had a higher estimated trophic level (>3.8) than rays and guitarfish (<3.8), suggesting a diet of bony fish and cephalopods. The trophic level of Sphyrna lewini and R. typus increased with total length, indicating ontogenetic dietary shifts, but the other species did not follow this trend. According to their δ13C values, R. typus, Mobula diabolus, and, surprisingly, Rhina ancylostoma appeared to be the most pelagic species. In comparison, Stegostoma fasciatum, Pristis pectinata, Rhinobatos granulatus, and Aetomylaeus maculatus appeared to be the most demersal, inshore species, and their δ13C signatures were significantly different from those of the three aforementioned species.

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LIMA, Daniel Pandilha de, Cesar SANTOS, Roberto de Souza SILVA, Eliane Tie Oba YOSHIOKA, and Roberto Messias BEZERRA. "Contaminação por metais pesados em peixes e água da bacia do rio Cassiporé, Estado do Amapá, Brasil." Acta Amazonica 45, no. 4 (December 2015): 405–14. http://dx.doi.org/10.1590/1809-4392201403995.

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A participação dos metais pesados nas reações químicas do metabolismo dos peixes tornou esses elementos um dos principais focos nos estudos de contaminação. O objetivo deste estudo foi determinar as concentrações dos metais Cd, Cr, Cu, Pb, Zn e Hg no tecido muscular de peixes da bacia do rio Cassiporé (Estado do Amapá) e ambiente, visando avaliar os riscos de contaminação. As concentrações de Cd em Plagioscion squamosissimus (1,061 µg g-1) e Pb em Poptella compressa (4,280 µg g-1) apresentaram valores que ultrapassam os limites estabelecidos pela legislação brasileira. As concentrações de Cr em P. compressa (0,937 ± 0,5 µg g-1), Pimelodella cristata (0,463 ± 0,03 µg g-1) e Cyphocharax gouldingi (0,364 ± 0,12 µg g-1), bem como de Hg em P. squamosissimus (0,670 µg g-1), Pseudoplatystoma fasciatum (0,630 µg g-1), Hoplias malabaricus (0,570 µg g-1 e Serrasalmus rhombeus (0,548 µg g-1) foram acima do limite legal. A coluna d'água apresentou altas concentrações de metais pesados em todos os pontos analisados, mostrando uma contaminação dessa bacia. Portanto, essas elevadas concentrações de metais pesados no ambiente e tecido muscular dos peixes indicam um elevado grau de contaminação na bacia do rio Cassiporé e risco a saúde do homem.

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Arruda, Joari Costa de, Carolina Joana da Silva, Nilo Leal Sander, and María Teresa Pulido. "Conhecimento ecológico tradicional da ictiofauna pelos quilombolas no Alto Guaporé, Mato Grosso, Amazônia meridional, Brasil." Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas 13, no. 2 (August 2018): 315–29. http://dx.doi.org/10.1590/1981.81222018000200004.

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Resumo O objetivo desta pesquisa foi estudar o conhecimento ecológico tradicional (CET) relacionado à pesca feita por grupo étnico autoidentificado como quilombola, por meio da análise de fatores que influenciam o consenso cultural e as técnicas da pesca artesanal. Participaram 24 homens e sete mulheres dos quilombos Retiro, Boqueirão, Casalvasco e Manga. Os métodos de amostragem utilizados foram: bola de neve, lista livre e observação participante. Os resultados incluem 47 etnoespécies (46 peixes e um réptil). O consenso cultural é composto por: Hoplias malabaricus, Cichla sp., Pseudoplatystoma fasciatum, Astronotus ocellatus, Satanoperca pappaterra, Brycon cephalus, Piaractus mesopotamicus, P. corruscans, Pimelodus sp., Colossoma macropomum, Pygocentrus nattereri, Mylossoma aureum, Astyanax sp. e Leporinus freiderici. Embora tenha sido maior a riqueza do conhecimento entre pessoas que residiram temporariamente em outros estados brasileiros, este aspecto não esteve relacionado à idade dos entrevistados. A manutenção e a transmissão de CET é propiciada por contato diário com peixes e com o rio desde criança, bem como por observação das práticas de pesca em grupo. O CET é parte da identidade e representa uma herança cultural que deve ser valorizada. É necessária a participação desses atores sociais nos planos de decisão e de gerenciamento de áreas protegidas.

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Chambrier, Alain de, Ricardo M. Takemoto, and Gilberto C. Pavanelli. "Nomimoscolex pertierrae n. sp. (Eucestoda: Proteocephalidea), a parasite of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) in Brazil and redescription of N. sudobim Woodland, 1935, a parasite of P. fasciatum." Systematic Parasitology 64, no. 3 (May 5, 2006): 191–202. http://dx.doi.org/10.1007/s11230-006-9031-0.

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Acosta, AA, J. Queiroz, H. Brandão, and RJ Silva. "Helminth fauna of Astyanax fasciatus Cuvier, 1819, in two distinct sites of the Taquari River, São Paulo State, Brazil." Brazilian Journal of Biology 75, no. 1 (March 2015): 242–50. http://dx.doi.org/10.1590/1519-6984.15113.

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This study assessed the helminth fauna of Astyanax fasciatus in two distinct sites of the Taquari River, São Paulo State, with 30 individuals sampled in a lotic site and 30 in a lentic site, recording the monogeneans: Cacatuocotyle paranaensis, Characithecium costaricensis, Diaphorocleidus kabatai, Jainus sp., Notozothecium sp. and Gyrodactylus sp., the digenean Antorchis lintoni and no-identified metacercariae; the nematode Procamallanus (Spirocamallanus) inopinatus and no-identified larvae. The mean abundances of total monogeneans (U = 1053; p = 0.042) and C. costaricensis (U = 1107; p = 0.005) were higher in the lotic site. This difference may be due to the higher density of the host population in the lotic site, and the water transparence in lentic environments that prevents A. fasciatus to form shoals, precluding the exchange of parasites with direct cycle within a host population. This study is the first report of the helminth fauna of A. fasciatus in the Taquari River, with ten taxa recorded, and reports A. fasciatus as a new host for Notozothecium sp. and C. paranaensis.

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Barbashova, M. A., M. S. Trifonova, and E. A. Kurashov. "FEATURES OF THE SPATIAL DISTRIBUTION OF INVASIVE SPECIES OF AMPHIPODS IN THE LITTORAL OF LAKE LADOGA." Russian Journal of Biological Invasions 14, no. 1 (March 10, 2021): 13–26. http://dx.doi.org/10.35885/1996-1499-2021-14-1-13-26.

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The modern distribution of invasive amphipods of Baikal ( Gmelinoides fasciatus (Stebbing, 1899) , Micruropus possolskii Sowinsky, 1915) and Ponto-Caspian origin ( Pontogammarus robustoides Sars, 1894 , Chelicorophium curvispinum (Sars, 1895)) in Lake Ladoga was shown. The heterogeneity of the distribution of quantitative indicators of amphipods in different parts of the lake was established. The most widespread species in the littoral zone was G. fasciatus . A decrease in the contribution of G. fasciatus in the bottom communities of macrozoobenthos was noted. The dominant role of G. fasciatus was observed only in those parts of the lake where other species of invasive amphipods did not penetrated yet. The habitat of Ponto-Caspian amphipods is limited by the boundaries of the Volkhov Bay. A significant increase in the quantitative development of P. robustoides and active dispersal of M. possolskii to the South along the west coast of the lake indicate the ongoing structural restructuring of littoral biocenoses.

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LEMAITRE, RAFAEL, and JOSEPH POUPIN. "A strikingly coloured new species of Paragiopagurus Lemaitre, 1996 (Crustacea: Decapoda: Anomura: Parapaguridae) from French Polynesia." Zootaxa 386, no. 1 (December 16, 2003): 1. http://dx.doi.org/10.11646/zootaxa.386.1.1.

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A new deep-water hermit crab species, Paragiopagurus fasciatus, is described from the Austral Islands, French Polynesia. This new species has a distinct colour pattern consisting of red stripes on the shield and ambulatory legs, and is also distinguished by having short antennal peduncles, strongly armed carpus of the left cheliped, and in females, laterally armed telson. This new species is the fourth of the genus, and the twelfth of the family, recorded from French Polynesia. The closest morphological affinities of P. fasciatus n. sp. are with P. bougainvillei (Lemaitre, 1994) and P. wallisi (Lemaitre, 1994), two species also known so far exclusively from French Polynesia. A taxonomically updated list of species from French Polynesia is presented.

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CROCETTA, F., D. AGIUS, P. BALISTRERI, M. BARICHE, Y. K. BAYHAN, M. ÇAKIR, S. CIRIACO, et al. "New Mediterranean Biodiversity Records (October 2015)." Mediterranean Marine Science 16, no. 3 (November 30, 2015): 682. http://dx.doi.org/10.12681/mms.1477.

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The Collective Article “New Mediterranean Biodiversity Records” of the Mediterranean Marine Science journal offers the means to publish biodiversity records in the Mediterranean Sea. The current article is divided per countries, listed according to a Mediterranean west-east geographic position. New biodiversity data are reported for 7 different countries, although one species hereby reported from Malta is overall new for the entire Mediterranean basin, and is presumably present also in Israel and Lebanon (see below in Malta). Italy: the rare native fish Gobius kolombatovici is first reported from the Ionian Sea, whilst the alien jellyfish Rhopilema nomadica and the alien fish Oplegnathus fasciatus are first reported from the entire country. The presence of O. fasciatus from Trieste is concomitantly the first for the entire Adriatic Sea. Finally, the alien bivalve Arcuatula senhousia is hereby first reported from Campania (Tyrrhenian Sea). Tunisia: a bloom of the alien crab Portunus segnis is first reported from the Gulf of Gabes, from where it was considered as casual. Malta: the alien flatworm Maritigrella fuscopunctata is first recorded from the Mediterranean Sea on the basis of 25 specimens. At the same time, web researches held possible unpublished records from Israel and Lebanon. The alien crab P. segnis, already mentioned above, is first formally reported from Malta based on specimens collected in 1972. Concomitantly, the presence of Callinectes sapidus in Maltese waters is excluded since based on misidentifications. Greece: the Atlantic northern brown shrimp Penaeus atzecus, previously known from the Ionian Sea from sporadic records only, is now well established in Greek and international Ionian waters. The alien sea urchin Diadema setosum is reported from the second time from Greece, and its first record date from the country is backdated to 2010 in Rhodes Island. The alien lionfish Pterois miles is first reported from Greece and concomitantly from the entire Aegean Sea. Turkey: the alien rhodophyte Antithamnion hubbsii is first recorded from Turkey and the entire eastern Mediterranean. New distributional data are also offered for the native fishes Alectis alexandrina and Heptranchias perlo. In particular, the former record is constituted by a juvenile of 21.38 mm total length, whilst the latter by a mature male. Cyprus: the rare native cephalopod Macrotritopus defilippi, and the alien crab Atergatis roseus, sea slug Plocamopherus ocellatus and fish Cheilodipterus novemstriatus are first recorded from the entire country. Lebanon: the alien crabs Actaea savignii and Matuta victor, as well as the alien fish Synanceia verrucosa, are first recorded from the entire country. In addition, the first Mediterranean record of A. savignii is backdated to 2006, whilst the high number of M. victor specimens observed in Lebanon first suggest its establishment in the basin. The Atlantic fishes Paranthias furcifer and Seriola fasciata, and the circumtropical Rachycentron canadum, are also first reported from the country. P. furcifer record backdate its presence in the Mediterranean to 2007, whilst S. fasciata records backdate its presence in the eastern Mediterranean to 2005. Finally, two of these latter species have been recently ascribed to alien species, but all the three species may better fit the cryptogenic category, if not a new one.

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Howes, Briar J., and Stephen C. Lougheed. "Male body size varies with latitude in a temperate lizard." Canadian Journal of Zoology 85, no. 5 (May 2007): 626–33. http://dx.doi.org/10.1139/z07-043.

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To examine the evolution of sexual size dimorphism (SSD), interspecific studies are often performed to generate hypotheses for the origin and maintenance of SSD. Although these methods are invaluable to our understanding of the evolution of SSD, they often quantify SSD for a species based on few populations. We found a significant sex-specific latitudinal cline in Plestiodon fasciatus (L., 1758) (= Eumeces fasciatus (L., 1758)), a species that was previously considered to be monomorphic for body size. Male body size significantly increased with increasing latitude, whereas female body size was relatively constant. Our findings argue for the importance of increased understanding and appreciation of intraspecific variation in SSD. We suggest that a more integrated approach to SSD be employed, where both intraspecific and interspecific variation is considered. We provide a foundation for posing hypotheses of the causes and consequences of SSD in P. fasciatus and perhaps other members of the species group.

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Ayala-Sulca, Yuri Olivier, Percy Colos-Galindo, Edwin Portal-Quicaña, Luis Ibarra-Juárez, Reynán Cóndor-Alarcón, Carlos Carrasco-Badajoz, and Rina Ramírez. "Respuesta biológica cuantitativa de dos depredadores (Heteroptera: Notonectidae) en el control larval de Aedes aegypti (Diptera: Culicidae)." Revista Colombiana de Entomología 47, no. 2 (July 22, 2021): e10535. http://dx.doi.org/10.25100/socolen.v47i2.10535.

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La depredación es un factor biótico que influye en la estructura y funcionamiento de los ecosistemas, su efecto se puede cuantificar a través de la respuesta funcional (RF) y numérica en un contexto de éxito-invasión. Utilizamos la RF para entender las relaciones coevolutivas y medir la respuesta biológica de los depredadores Notonecta peruviana y Buenoa fasciata en el control de larvas de cuarto estadio de Aedes aegypti (F1) a diferentes densidades (5, 10, 20, 35, 55 y 80 larvas/litro). Los depredadores en ayuno (48 horas) se introdujeron a los envases de ensayo (un individuo por especie) y se evaluó a las 24 horas la RF, número de presas consumidas (Ne), coeficiente de ataque (a) y tiempo de manipuleo (Th). N. peruviana y B. fasciata desarrollaron una RF tipo II en el consumo de larvas de Ae. aegypti (p ≤ 0,01) y ocuparon cercanos tiempos de manipuleo (Th) (t = –1,93; gl = 12; p = 0,078). N. peruvianadepredó (Ne) el doble de larvas de Ae. aegypti (p ≤ 0,05) y mostró un mayor coeficiente de ataque (a) en relación con B. fasciata (t = 14,92; gl = 12; p = 0,000). Los depredadores N. peruviana y B. fasciata desestabilizaron y consumieron en forma rápida las presas. N. peruviana devoró el doble de larvas atribuible al efecto depredador-presa de origen reciente en comparación al posible ajuste coevolutivo entre B. fasciata y Ae. aegypti. Sería importante considerar a las especies de depredadores en los programas de control larval de mosquitos aedinos.

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Malipatil, MB. "Revision of Australian Pristhesancus Amyot and Serville (Heteroptera, Reduviidae)." Australian Journal of Zoology 34, no. 4 (1986): 601. http://dx.doi.org/10.1071/zo9860601.

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Two new species, Pristhesancus nigritus, sp. nov. and P. australis, sp nov., are described from northern Australia. The following synonymies are made: Pristhesancus darwinensis Miller, 1958 with P. grassator Bergroth, 1895; P. fasciatus Reuter, 1881, P. uniformis Distant, 1903, P. luteicollis Walker, 1873, P. melitus Distant, 1903, P. ruralis Miller, 1958 and P. nigridorsum Miller, 1958 with P. plagipennis Walker, 1873. A key to the Australian species is given. A lectotype has been designated for Pristhesancus grassator Bergroth.

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Chandrasekaran, M., Venugopalan Venkatesalu, G. Adaikala Raj, and S. Krishnamoorthy. "Antibacterial Activity of Ulva fasciata against Multidrug Resistant Bacterial Strains." International Letters of Natural Sciences 19 (July 2014): 40–51. http://dx.doi.org/10.18052/www.scipress.com/ilns.19.40.

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The present study was conducted to evaluate the antibacterial activity of different organic solvent increasing polarity viz., hexane, chloroform, ethyl acetate, acetone and methanol extracts of Ulva fasciata (Chlorophyceae) were collected from Kanniyakummari, Gulf of Mannar biosphere Reserve, Tamilnadu, India. Marine green algae extracts of U. fasciata against multi-drug resistant standard and clinical bacterial strains viz., Bacillus subtilis, Streptococcus pyogenes, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella typhimurium, Vibrio cholerae, Shigella flexneri, Proteus mirabilis and P. vulgaris. The ethyl acetate extracts of U. fasciata showed highest antibacterial activity against all the bacterial strains tested. The mean zone of inhibition produced by the extracts in disc diffusion assays were ranged from 7.1 mm to 15.0 mm. The Minimum Inhibitory Concentrations (MIC) were between 125 μg/ml and 500 μg/ml, while the Minimum Bactericidal Concentrations (MBC) were between 250 μg/ml and 1000 μg/ml. The highest mean of zone inhibition (15.0 mm) and lowest MIC (125 μg/ml) and MBC (250 μg/ml) values were observed in ethyl acetate extract of U. fasciata against B. subtilis. The ethyl acetate extract of the U. fasciata showed the presence of phytochemicals, terpenoids, tannins and phenolic compounds in U. fasciata than the other solvents extracts. The present results of the ethyl acetate extract of U. fasciata can be used as an antibacterial substance for the treatment of multi drug resistant bacterial infections

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Vieira-Menezes, Flavia Guerra, Danielle Priscilla Correia Costa, and Marilia Carvalho Brasil-Sato. "Nematodes of Astyanax fasciatus (Actinopterygii: Characidae) and their parasitic indices in the São Francisco river, Brazil." Revista Brasileira de Parasitologia Veterinária 26, no. 1 (February 6, 2017): 10–16. http://dx.doi.org/10.1590/s1984-29612016074.

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Abstract The endoparasite fauna of Astyanax fasciatus from the upper São Francisco river was investigated and ecological parameters and morphological and morphometric data on the parasites are presented. A total of 74 specimens of banded astyanax were collected downstream from the Três Marias dam, municipality of Três Marias, Minas Gerais (18°12’32”S, 45°15’41”W) in January 2011 and January 2012. Eleven taxa of Nematoda were found: Contracaecum sp.; Hysterothylacium sp.; Goezia sp.; Brevimulticaecum sp.; Procamallanus sp.; Procamallanus (Spirocamallanus) saofranciscencis; Cystidicoloides sp.; Spinitectus rodolphiheringi; Rhabdochona sp.; Spiroxys sp.; and Eustrongylides sp.. The fauna of A. fasciatus consisted of by larval specimens of Contracaecum sp., Hysterothylacium sp., Brevimulticaecum sp., Cystidicoloides sp., and Spiroxys sp., and by adult specimens of P. saofranciscencis, whose prevalence was greater than 10%. Thus, this fish acts as an intermediate host of some species of larval nematodes especially, Anisakidae and Acanthocheilidae (Brevimulticaecum sp., new host record and new locality). It participates in transmitting species such Rhabdochona sp. to carnivorous fish and also acts as a definitive host for P. saofranciscencis and S. rodolphiheringi in the upper São Francisco river.

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Short, J., B. Turner, and C. Majors. "The Fluctuating Abundance of Endangered Mammals on Bernier And Dorre Islands, Western Australia - Conservation Implications." Australian Mammalogy 20, no. 1 (1998): 53. http://dx.doi.org/10.1071/am97053.

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Bernier and Dorre Islands in Shark Bay, Western Australia, provide refuge to populations of five species of threatened mammals that are extinct on the mainland other than as reintroduced or captive populations. This paper provides estimates of changes in population size of four species over three years from 1988-9 to 1991-2. The period from November 1986 to March 1989 was one of below average rainfall intensifying to severe drought on the islands; the period from mid 1989 to 1992 was one of average to above-average rainfall. Three of the four species (L. hirsutus, B. lesueur and P. bougainville) showed substantial and significant increases and one species (L. fasciatus) showed a small but non-significant increase in abundance. Combined estimates of minimum population size for both islands in 1991-2 vary from c. 4,000 P. bougainville to c. 10,000 L. fasciatus. If these densities are regarded as typical of average rainfall years then the drought in the late 1980s reduced populations of P. bougainville by up to 75%, B. lesueur by 65%, and L. hirsutus by up to 60%. Combined estimates for the four species give densities for the community of medium-sized mammals which vary between 160 km-2 in drought and 260 km-2 in years of average to above average rainfall.

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Rusmili, Muhamad Rusdi Ahmad, Tee Ting Yee, Mohd Rais Mustafa, Wayne C. Hodgson, and Iekhsan Othman. "Isolation and characterization of a presynaptic neurotoxin, P-elapitoxin-Bf1a from Malaysian Bungarus fasciatus venom." Biochemical Pharmacology 91, no. 3 (October 2014): 409–16. http://dx.doi.org/10.1016/j.bcp.2014.07.001.

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Gorochov, A. V. "Three new taxa of the genus Paraphidnia (Orthoptera: Tettigoniidae: Phaneropterinae) from French Guiana." Zoosystematica Rossica 23, no. 1 (June 25, 2014): 89–95. http://dx.doi.org/10.31610/zsr/2014.23.1.89.

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Paraphidnia (Anaphidna) tarsalis sp. nov., P. (A.) fasciata sp. nov. and P. (A.) osae orientalis subsp. nov. are described from the same locality in French Guiana. These taxa belong to a species group of the subgenus Anaphidna with reduced processes on the pronotal disc.

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LENGYEL, GÁBOR DÁNIEL. "A taxonomic discussion of the genus Phalacrotophora Enderlein, 1912 (Diptera: Phoridae), with the description of two new species from Southeast Asia." Zootaxa 2913, no. 1 (June 10, 2011): 38. http://dx.doi.org/10.11646/zootaxa.2913.1.4.

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Two new species of Phalacrotophora Enderlein, 1912, P. nitida sp. n. and P. pappi sp. n. are described from Southeast Asia. Their affinities are discussed, the present knowledge on the genus is summarized. Faunistic records of various Phalacrotophora species are presented; P. fasciata (Fallén, 1823), so far only known from Europe, is reported from Asia for the first time.

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CLINE, ANDREW R. "Revision of the sap beetle genus Pocadius Erichson, 1843 (Coleoptera: Nitidulidae: Nitidulinae)." Zootaxa 1799, no. 1 (June 16, 2008): 1. http://dx.doi.org/10.11646/zootaxa.1799.1.1.

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A total of 47 species are included in a revisionary treatment of Pocadius Erichson. Twenty-one species are redescribed, P. yunnanensis Grouvelle is resurrected, and 25 are described as new, including: P. antennuliferus (Brazil), P. ashei (Bolivia), P. barclayi (Sulawesi), P. bicolor (Brazil), P. carltoni (Nicaragua), P. centralis (Central America), P. cochabambus (Bolivia), P. coxus (Brazil), P. crypsis (Guyana), P. dominicus (Dominican Republic), P. endroedyi (southern Africa), P. falini (Paraguay), P. fasciatus (Borneo), P. femoralis (Vietnam), P. fusiformis (Sulawesi), P. globularis (Honduras), P. insularis (Trinidad), P. kirejtshuki (Australia), P. luisalfredoi (Mexico), P. nigerrimus (Paraguay), P. okinawaensis (Okinawa), P. pecki (Venezuela), P. peruensis (Peru), P. tepicensis (Mexico), P. wappesi (Bolivia). An adult and larval description for the genus also is provided and its phylogenetic position within Nitidulinae discussed. A key to all species is included, as well as a checklist of species and their distributions.

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Hwang, Seong Don, Jin-Sol Bae, Dong Hee Jo, Kwang Il Kim, Mi Young Cho, Bo Young Jee, Myoung-Ae Park, and Chan-Il Park. "Gene expression and functional characterization of serum amyloid P component 2 in rock bream, Oplegnathus fasciatus." Fish & Shellfish Immunology 47, no. 1 (November 2015): 521–27. http://dx.doi.org/10.1016/j.fsi.2015.09.048.

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Gargouri Ben Abdalah, L., S. Elbohli, and F. Maamouri. "Digenean diversity in labrid fish from the Bay of Bizerte in Tunisia." Journal of Helminthology 84, no. 1 (July 7, 2009): 27–33. http://dx.doi.org/10.1017/s0022149x09990022.

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AbstractSix species of digeneans (Proctoeces maculatus (Looss, 1901), Helicometra fasciata (Odhner, 1902), Helicometra pulchella (Odhner, 1902), Macvicaria alacris (Looss, 1901), Peracreadium genu (Nicoll, 1909) and Zoogonus rubellus (Olson, 1868)) were found for the first time in labrid fish (Symphodus tinca (Linnaeus, 1758), Labrus merula (Linnaeus, 1758) and Labrus viridis (Linnaeus, 1758)) from the Bay of Bizerte. Except for P. maculatus and Z. rubellus, which are limited to the rectum, these helminths colonize the entire digestive tract. The study of the seasonal prevalence, abundance and mean intensity shows that three parasites, P. maculatus, H. fasciata and P. genu are present throughout the year while H. pulchella, M. alacris and Z. rubellus are less frequent and appear only in spring (H. pulchella and M. alacris) or in spring and summer (Z. rubellus). The levels of infection and digenean faunal diversity in labrid fish from the Tunisian coasts are generally lower than those from localities within the western Mediterranean.

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Eswari, J. Satya, and Shadab Ahmad. "TRIPLE OBJECTIVE OPTIMIZATION OF CYTOTOXIC POTENCY OF HUMAN CARCINOMA CELL LINES OF ULVA FASCIATA DELILE (A MARINE MACRO ALGA) USING NON-SORTING GENETIC ALGORITHM." International Journal of Pharmacy and Pharmaceutical Sciences 8, no. 9 (September 1, 2016): 79. http://dx.doi.org/10.22159/ijpps.2016.v8i9.12003.

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Objective: The main purpose of our work was to arrive at an acceptable model for optimizing the cytotoxic potency of Ulva fasciata Delile extract on human carcinoma cell lines of which can provide believable indications as compared to experimental results.Methods: The experimental result for cytotoxic potency of a methanolic extract of the Ulva fasciata Delile (MEUF) with a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay against human colon carcinoma (HT-29), human hepatocyte carcinoma (Hep-G2), and human breast carcinoma (MCF-7) cell lines was used to carry out a multi-objective (triple objective) optimization. Thirty non-dominating solutions were considered for analyses of absorbance (y1), % cell survival (y2) and% cell inhibition (y3) data.Results: The model developed using non-dominated sorting genetic algorithm (NSGA) was compared with data obtained experimentally and the results were found to be significant. This method has distinct advantages over other methods which relied heavily on statistical-regression-models, in the sense that it does triple-objective optimization. The resulted in obtaining solutions which were not only significant or believable, but it also corroborated well with experimental results. Thus the solutions obtained during optimization provided the necessary data for generating a successful model.Conclusion: The solutions obtained by NSGA method helped to build an acceptable model for optimizing the cytotoxic potency of Ulva fasciata Delile on human carcinoma cell lines.

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Tiralongo, Francesco, Daniele Tibullo, Giuseppina Messina, and Bianca Maria Lombardo. "New records of two carangid species from the south-east coast of Sicily (Ionian Sea) and considerations about their presence and abundance." Acta Adriatica 59, no. 2 (December 20, 2018): 225–30. http://dx.doi.org/10.32582/aa.59.2.8.

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New records of Pseudocaranx dentex (Bloch & Schneider, 1801) and Seriola fasciata (Bloch, 1793) are reported from the Mediterranean Sea. During the period 2013-2017, we have collected several records of both species from the south-east coast of Sicily (Ionian Sea). On the basis of our and published data, we can consider S. fasciata as a relatively common species in the area, commonly caught with purse seine around FADs in summer and autumn; while, P. dentex remains basically a rare species, occasionally caught with trammel nets or gillnets. This work represents the first well-documented records of both carangid species in the south-east coast of Sicily.

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Sanches, B. O., R. M. Hughes, D. R. Macedo, M. Callisto, and G. B. Santos. "Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir." Brazilian Journal of Biology 76, no. 1 (January 22, 2016): 185–93. http://dx.doi.org/10.1590/1519-6984.16614.

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Abstract We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal gradient in the composition and abundance of fishes in Nova Ponte Reservoir, reinforcing the importance of freely flowing riverine reaches for conserving native neotropical ichthyofauna and reflecting the strong adaptation of these species to riverine systems.

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Druzian, Rogério Anderson, José Rafael Soares Fonseca, Jean Colombari Neto, Tiago Debona, Vinícius Valiente dos Santos, Pedro Rogério Leandro da Silva, Anderson Luís Maciel, et al. "Pequena central hidrelétrica afeta a estrutura populacional do lambari do rabo vermelho Psalidodon aff. fasciatus (Cuvier 1819)." Research, Society and Development 10, no. 10 (August 5, 2021): e51101018582. http://dx.doi.org/10.33448/rsd-v10i10.18582.

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Recentemente no Brasil começaram a ser construídas pequenas centrais hidrelétricas em rios de pequena ordem para aumentar a capacidade energética, e com isso, o rio São Francisco Verdadeiro foi barrado para a formação do reservatório da PCH São Francisco. O objetivo deste trabalho foi verificar se a formação do reservatório da PCH São Francisco, alterou positivamente a estrutura populacional de Psalidodon aff. fasciatus. As coletas trimestrais dos peixes foram realizadas em três locais amostrais, com redes de espera, nas fases pré e pós enchimento. Foram verificadas diferenças significativas na abundância, nos locais do reservatório e jusante. Na estrutura em tamanho, observou-se maior frequência de indivíduos de menor tamanho a jusante e no reservatório. Com relação à atividade reprodutiva, houve redução da intensidade no reservatório no período imediatamente após o represamento. Quanto ao fator de condição no reservatório e na jusante foram verificadas alterações positivas. Deste modo, concluímos que a implantação da PCH São Francisco influenciou positivamente a abundância, estrutura em tamanho e fator de condição de P. aff. fasciatus, o que está relacionado à maior disponibilidade de alimento e habitats após o barramento.

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KOMAI, TOMOYUKI, and EIJI MYORIN. "A new species of Pagurixus (Crustacea: Decapoda: Anomura: Paguridae) from Southern Japan." Zootaxa 876, no. 1 (March 1, 2005): 1. http://dx.doi.org/10.11646/zootaxa.876.1.1.

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A new hermit crab species of the pagurid genus Pagurixus Melin, P. fasciatus, is described from shallow rocky reefs of Japan. Fifteen congeners are known from the Indo-Pacific region. The new species is most similar to P. handrecki Gunn & Morgan, known from Western and southeastern Australia, but can be distinguished from the latter by the less setose antennal acicle, the dorsomesial margin of the right palm which is sharply carinate along the entire length, the fewer ventral spines on the ambulatory dactyli, and the sharp, smooth dorsolateral carina of the female right palm. Coloration in life is also different between the two species.

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RAGUSA-NETTO, J. "Raptors and "campo-cerrado" bird mixed flock led by Cypsnagra Hirundinacea (Emberizidae:Thraupinae)." Revista Brasileira de Biologia 60, no. 3 (August 2000): 461–67. http://dx.doi.org/10.1590/s0034-71082000000300011.

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Bird mixed flocks including Cypsnagra hirundinacea and Neothraupis fasciata as species with sentinels were studied in "campo-cerrado" in order to investigate the possible relationship between alertness and the mixed flock leadership. This study was conducted from March to September 1996 and mixed flocks were observed on average for 2:30h. The time with sentinels were recorded for C. hirundinacea and N. fasciata. The sentinels of Cypsnagra hirundinacea performed most of the vigilance (time with sentinel was on average 42 ± 17%, 41 ± 17% of which by C. hirundinacea, whereas only 1.2 % by N. fasciata) and gave all the alarm calls recorded (54% of the encounters with raptors stimulated alarm calls). A relationship was verified between time with sentinel and the rate of encounters with raptor (ANOVA, F = 3.0, P < 0.05). The results of this study are an evidence for the anti-predatory function of mixed flocks, in campo-cerrado, and the alertness as a major feature of a leader species, since C. hirundinacea always led those flocks.

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Marin, I. N., and A. V. Matsyura. "Taxonomic diversity of benthic invertebrates of the Moskva River in the Moscow area: diversity and distribution." Ukrainian Journal of Ecology 7, no. 4 (December 20, 2017): 169–73. http://dx.doi.org/10.15421/2017_101.

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Biological diversity and distribution of benthic invertebrates in the Moskva River within the frames of Moscow are studied. Totally, 72 invertebrate taxa were found including 8 invasive species with amphipod Gmelinoides fasciatus (Stebbing, 1899), an invader from the Lake Baikal. A number of observed species are characterized with high abundance and biomass while most of observed taxa are represented by a small number of individuals. The greatest species diversity was revealed for insect larvae, mainly due to Chironomidae. The main species on the investigated section of the river are various crustaceans, mainly amphipods and decapods (when present in samples) showing more than 70-90% of all biomass of zoobenthos at all stations (sites). Multivariate cluster analysis allowed concluding that bottom communities in Moskva River, the degree of their quantitative development, species richness and diversity are mainly influenced by the structure of bottom substrates rather than other factors. The most diverse benthic communities are presented on silty bottom with mixture of shells of mollusks and plant remains. The lowest diversity of benthic communities is characteristic for sites with relatively strong water and well washed sand as the main bottom substrate. Obtained data starts annual monitoring of the river at indicated stations using biological indicators, namely native amphipod Gammarus lacustris and invasive G. fasciatus.

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Penteado, Pierre Rafael, Karine Frehner Kavalco, and Rubens Pazza. "Um terceiro citótipo de Astyanax aff. fasciatus (TELEOSTEI, CHARACIDAE) da bacia do rio São Francisco." Evolução e Conservação da Biodiversidade 4, no. 1 (July 10, 2013): 1. http://dx.doi.org/10.7902/4issecbvol1.2013n42.

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Astyanax é um dos gêneros mais amplamente distribuídos ao longo da região Neotropical, devido a sua estrutura e densidade populacional. Essas características fazem o gênero ser extremamente especioso, contando com mais de cem espécies descritas atualmente. O objetivo do presente trabalho é auxiliar no levantamento da diversidade genética no gênero, analisando uma população Astyanax aff. fasciatus, encontrada na Bacia do Rio São Francisco. As análises citogenéticas constituem cariotipagem convencional, detecção de heterocromatina constitutiva e localização de genes ribossômicos 5S e 18. Foram observados 2n=48 (8M+22SM+12ST+6A) e heterocromatina distribuída em regiões pericentroméricas de poucos cromossomos. A FISH evidenciou sítios de rDNA 5S intersticiais em um par de cromossomos metacêntricos e na região pericentromérica de um par de cromossomos acrocêntricos. A situação taxonômica do complexo de espécies é discutida. DOI: 10.7902/ecb.v4i1.42

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Penteado, Pierre Rafael, Karine Frehner Kavalco, and Rubens Pazza. "Um terceiro citótipo de Astyanax aff. fasciatus (TELEOSTEI, CHARACIDAE) da bacia do rio São Francisco." Evolução e Conservação da Biodiversidade 4, no. 1 (July 10, 2013): 1. http://dx.doi.org/10.7902/ecb.v4i1.42.

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Astyanax é um dos gêneros mais amplamente distribuídos ao longo da região Neotropical, devido a sua estrutura e densidade populacional. Essas características fazem o gênero ser extremamente especioso, contando com mais de cem espécies descritas atualmente. O objetivo do presente trabalho é auxiliar no levantamento da diversidade genética no gênero, analisando uma população Astyanax aff. fasciatus, encontrada na Bacia do Rio São Francisco. As análises citogenéticas constituem cariotipagem convencional, detecção de heterocromatina constitutiva e localização de genes ribossômicos 5S e 18. Foram observados 2n=48 (8M+22SM+12ST+6A) e heterocromatina distribuída em regiões pericentroméricas de poucos cromossomos. A FISH evidenciou sítios de rDNA 5S intersticiais em um par de cromossomos metacêntricos e na região pericentromérica de um par de cromossomos acrocêntricos. A situação taxonômica do complexo de espécies é discutida. DOI: 10.7902/ecb.v4i1.42

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Ferreira, Katiane M. "Biology and ecomorphology of stream fishes from the rio Mogi-Guaçu basin, Southeastern Brazil." Neotropical Ichthyology 5, no. 3 (September 2007): 311–26. http://dx.doi.org/10.1590/s1679-62252007000300012.

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The córrego Paulicéia is a direct tributary of the rio Mogi-Guaçu, located in Santa Rita do Passa Quatro, State of São Paulo, Southeastern Brazil. This stream runs inside a savannah-like (cerrado) environment and it associated vegetation. Biological and ecomorphological aspects of its fish community were studied in three stretches of the stream, denominated herein as the upper, middle and lower courses. The fish fauna recorded in this study consisted of 15 species, belonging to five orders and nine families, based in a total of 715 collected individuals representing 1,450 kg of biomass. The most important abiotic factors related to the occurrence and distribution of the fish fauna were the substrate, current speed, and presence or absence of riparian vegetation. The analysis of 336 stomach contents of 13 species demonstrated that 65% of food items are autochthonous, 32% allochthonous, and 3% are of unknown origin. Four alimentary guilds could be identified, based on the predominant food items: omnivores with tendency to insectivory - Astyanax paranae, A. fasciatus and Piabina argentea; larvivores - Corydoras difluviatilis, Cetopsorhamdia iheringi, Phenacorhamdia tenebrosa, Characidium gomesi, Eigenmannia virescens, and Rhamdia quelen; periphyton feeders - Hisonotus sp., Hypostomus ancistroides and Synbranchus marmoratus; and piscivore - Hoplias malabaricus. Reproductions data are presented for Astyanax altiparanae and Hisontus sp. Three ecomorphological groups could be established, based on swimming, feeding, and microhabitat strategies: nektonic (A. fasciatus, A. paranae, Bryconamericus stramineus, P. argentea, H. malabaricus and Phallotorynus jucundus), benthic (C. gomesi, P. tenebrosa, C. iheringi, R. quelen, C. difluviatilis, H. ancistroides and Hisonotus sp.), and necktobenthic (E. virescens and S. marmoratus).

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GLAW, FRANK, JÖRN KÖHLER, and MIGUEL VENCES. "Three new species of nocturnal geckos of the Paroedura oviceps clade from xeric environments of Madagascar (Squamata: Gekkonidae)." Zootaxa 4433, no. 2 (June 12, 2018): 305. http://dx.doi.org/10.11646/zootaxa.4433.2.4.

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We describe three new gecko species of the Paroedura oviceps clade, diagnosed by deep divergences in mitochondrial DNA, absence of haplotype sharing in two nuclear genes (sacs and kiaa1239), and morphological differences. Paroedura spelaea sp. nov. is an extremely slender species from karst habitats in the limestone massif of the Tsingy de Bemaraha National Park in western Madagascar, morphologically reminiscent of P. homalorhina but distinguished by the absence of distinct dorsal rows of spiny tubercles. Paroedura fasciata sp. nov. from the small karstic island Nosy Hara in northern Madagascar is phylogenetically placed sister to P. spelaea despite radical morphological differences. It is morphologically most similar to P. hordiesi from the geographically close Montagne des Français massif, but is smaller, has slightly more spiny dorsal scales, and a distinctive colour pattern with light grey dorsal crossbands. The third species, Paroedura kloki sp. nov., is known from Ankarafantsika National Park and the western slopes of Makira, two sites of dry to transitional forest in western Madagascar. It is at least partly arboreal and morphologically very similar to P. oviceps, from which it differs by spiny scales extending over its entire tail. Although incomplete, the available phylogenetic evidence suggests that the karst specialists in the P. oviceps clade (P. fasciata, P. homalorhina, P. hordiesi, P. spelaea) form a monophyletic group which might have diversified by vicariance after becoming isolated, respectively, in their limestone habitats in Tsingy de Bemaraha, Ankarana, Nosy Hara and Montagne des Français.

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BRAY, RODNEY A., and JEAN-LOU JUSTINE. "Hypocreadium toombo n. sp. (Digenea: Lepocreadiidae) in the yellow-spotted triggerfish Pseudobalistes fuscus (Perciformes: Balistidae) and additional lepocreadiids parasitizing fishes from the waters off New Caledonia." Zootaxa 1326, no. 1 (October 2, 2006): 37. http://dx.doi.org/10.11646/zootaxa.1326.1.4.

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Hypocreadium toombo n. sp. is described from the balistid Pseudobalistes fuscus from the waters off New Caledonia. It is distinguished by a series of characters shared by no other Hypocreadium species. The specimens are always slightly longer than wide, have a distinct anterior notch, have the vitelline fields confluent or nearly so in the forebody and have the terminal ends of the caeca pointing anteriorly. Other lepocreadiid species also recorded from New Caledonian waters are Lobatocreadium exiguum from P. fuscus, Intusatrium robustum from Bodianus perditio and B. loxozonus, Postlepidapedon secundum from Choerodon graphicus and Lepidapedoides angustus from Epinephelus fasciatus.

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Pyron, Robert Alexander, and Carlos Duane Camp. "Courtship and mating behaviours of two syntopic species of skink (Plestiodon anthracinus and Plestiodon fasciatus)." Amphibia-Reptilia 28, no. 2 (2007): 263–68. http://dx.doi.org/10.1163/156853807780202413.

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AbstractCourtship and mating behaviours are widely conserved throughout the scincid lizard genus Plestiodon, and ethological isolation between closely related species depends heavily on differentiating chemical cues. The purpose of this study was to determine whether or not subtle, as yet undetected differences are present in the mating behaviours of two syntopic, distantly related skinks, P. anthracinus and P. fasciatus. Observed courtship and mating behaviours were similar between the two species and to those reported for other species within this genus. However, survival analysis determined significant interspecific differences in the duration of pre-coital behaviours. Investigation of such subtle differences between species more closely related than these two may generate further insights into the evolution of ethological isolating mechanisms in lizards.

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Choi, Kwang-Min, Sang Hee Shim, Cheul Min An, Bo-Hye Nam, Ji-Min Jeong, Ju-Won Kim, and Chan-il Park. "Functional characterisation and expression analysis of recombinant serum amyloid P isoform 1 (RbSAP1) from rock bream (Oplegnathus fasciatus)." Fish & Shellfish Immunology 45, no. 2 (August 2015): 277–85. http://dx.doi.org/10.1016/j.fsi.2015.04.021.

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Baláž, Ivan, Filip Tulis, and Martina Zigová. "Differentiation of flea communities of small mammals in selected habitats in the Eastern Tatra Mts." Folia Oecologica 46, no. 2 (December 1, 2019): 137–45. http://dx.doi.org/10.2478/foecol-2019-0016.

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AbstractResearch into small mammals and their ectoparasites was carried out in the Belianske Tatras during 2010–14, evaluating flea communities found on small mammals on the basis of species richness, abundance and level of infestation. Flea infestation of host species occurred mostly in C. glareolus with the highest infestation rates recorded in S. alpinus, the earlier mentioned C. glareolus, N. anomalus and N. fodiens. Based on their prevalence in all the examined hosts, the most frequent flea communities found were M. turbidus, C. agyrtes, A. penicilliger and P. soricis. In addition, flea prevalence in all the captured host species was evaluated. The most frequent flea communities were M. turbidus, P. soricis and D. dasycnema (8 host species); C. agyrtes and H. orientalis (7); A. penicilliger and P. bidentata (4); C. uncinatus, P. sylvatica and R. integela (3); and M. rectangulatus, N. fasciatus and C. bisoctodentatus (2), while A. nuperus and A. arvicolae were recorded in only one host species.

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DOMAHOVSKI, ALEXANDRE CRUZ. "New genera and species of Selenomorphini (Hemiptera: Cicadellidae: Iassinae), including redescription of Scaroidana Osborn, Pachyopsis Uhler and updated key to genera and species." Zootaxa 4711, no. 3 (December 17, 2019): 517–44. http://dx.doi.org/10.11646/zootaxa.4711.3.5.

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Selenomorphini is a small tribe previously comprising four genera and 21 species, with distribution in the New World and New Caledonia. Herein are described three new species of Pachyopsis Uhler from Brazil: P. fasciatus sp. nov., P. nigrifacis sp. nov., and P. pallidus sp. nov. Two new Brazilian monotypic genera, Parapachyopsis gen. nov. and Uhleriana gen. nov. are proposed, based on P. tenebris sp. nov. and U. tornatucephala sp. nov., and an updated key to genera of Selenomorphini is provided. Pachyopsis and Scaroidana are reviewed and the detailed morphology is redescribed, including characters not previously observed and the first illustrations of the female genitalia. The type-species Scaroidana flavida Osborn is redescribed and a key to males of Pachyopsis is provided. Additionally new State records for Brazil are reported for Pachyopsis vicosensis Coelho, Scaroidana flulvula Osborn and Scaroidana flavida Osborn. Detailed comparative notes between the new genera, Pachyopsis and Scaroidana are given.

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van Vondel, Bernhard J. "Revision of the Nearctic Haliplidae (Coleoptera)." Tijdschrift voor Entomologie 163, no. 2-3 (May 21, 2021): 101–298. http://dx.doi.org/10.1163/22119434-20202093.

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The Haliplidae of the Nearctic region are revised. The generic and subgeneric division as proposed by Vondel is accepted here. The subgenus Paraliaphlus Guignot, 1930 is redefined. One species is described as new: Peltodytes roughleyi sp. n. Haliplus ohioensis Wallis, 1933, H. ungularis Wallis, 1933 and H. canadensis Wallis, 1933 are established as junior synonyms of H. annulatus Roberts, 1913, H. cylindricus Roberts, 1913 and H. nitens LeConte, 1850, respectively. Peltodytes lengi Roberts, 1913 is established as junior synonym of P. duodecimpunctatus (Say, 1823). P. mexicanus (Wehncke, 1883) and P. dispersus Roberts, 1913 are both established as junior synonyms of P. simplex (LeConte, 1852). Lectotypes are designated for Haliplus blanchardi Roberts, 1913, H. confluentus Roberts, 1913, H. cylindricus Roberts, 1913, H. fasciatus Aubé, 1838, H. gracilis Roberts, 1913, H. leopardus Roberts, 1913, H. pantherinus Aubé, 1838, Peltodytes dispersus Roberts, 1913, P. duodecimpunctatus (Say, 1823), P. festivus (Wehncke, 1876), P. oppositus Roberts, 1913, P. sexmaculatus Roberts, 1913, P. shermani Roberts, 1913 and P. tortulosus Roberts, 1913. All species are illustrated and (re)described. A key to the Nearctic species is provided, as well as distribution maps.

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MA, TAO, XIAO-FEI LING, and KEVIN D. HYDE. "Species of Psilocybe (Hymenogastraceae) from Yunnan, southwest China." Phytotaxa 284, no. 3 (November 16, 2016): 181. http://dx.doi.org/10.11646/phytotaxa.284.3.3.

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Species of Psilocybe collected in Yunnan Province in southwest China were identified using both morphological characteristics and phylogenetic analyses of ITS and nrLSU sequence data. Six phylogenetic species were recognized among the studied collections. In this paper, Psilocybe ruliensis is introduced as a new species, while Psilocybe keralensis is new to China, P. aff. fasciata is new to Yunnan and P. chuxiongensis is recollected in Yunnan Province. The remaining two phylogenetic species are not described or detailed due to the paucity of the material. The four species appear to be endemic to Asia.

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Journal articles on the topic 'P. Fasciatum'

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