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Journal articles on the topic 'Penaeus schmitti'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Fernandez de Alaiza Garcia Madrigal, Rafael, Ubiratã de Assis Teixeira da Silva, and Eduardo Luis Cupertino Ballester. "Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions." Latin American Journal of Aquatic Research 48, no. 3 (July 6, 2020): 342–56. http://dx.doi.org/10.3856/vol48-issue3-fulltext-2354.

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To compare the zootechnical performance of the Brazilian native shrimp Penaeus schmitti and the exotic shrimp Penaeus vannamei, juveniles were grown under controlled conditions. Both species were simultaneously cultivated (monoculture) in separate 70 L plastic tanks at two different densities: 30 and 50 ind m-2. Also, in the other two treatments, both species were cultivated together (mixed), with and without feeding, at 30 ind m-2. During the experiment, P. vannamei generally showed a greater interest in food and voracity than P. schmitti. At harvest, for both stocking densities of monoculture treatments, the mean growth rate observed for P. vannamei was 1.0 g week-1, while P. schmitti achieved only 0.1 g week-1. The mean final weight was 10.4 ± 2.0 g; 10.7 ± 2.1 g for P. vannamei and 2.8 ± 0.3 g; 3.2 ± 0.3 g for P. schmitti, for respective densities of 50 and 30 ind m-2. In the mixed treatment with feeding, while P. vannamei reached 11.9 ± 1.4 g, P. schmitti reached only 2.6 ± 0.4 g in the same tank. The observed differences were 3.7 and 3.4 higher in favor of P. vannamei in the monoculture treatment, and up 4.5 times higher in the mixed treatment. Under strict fasting conditions, both species practiced predation/cannibalism among themselves. The results reflected the zootechnical advantages of P. vannamei, but also corroborated the negative effect that high densities and lack of natural food can exert over native species. The potential for P. schmitti cultivation and the possible impact of the escape of P. vannamei into the natural environment is discussed.

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2

Garcia, Roberta Cardozo P., Cecília Fernanda F. Craveiro, Caroline V. Bernabé, Maria Aparecida Silva, Paulo Henrique R. Aride, Adriano T. Oliveira, Flávia Regina S. C. Gonçalves, Jones S. Neto, Henrique D. Lavander, and Caterina Faggio. "Gonadal Development of Females of the White Shrimp Penaeus schmitti (Burkenroad, 1936) Caught in Southeastern Brazil." Journal of Marine Science and Engineering 9, no. 6 (June 13, 2021): 653. http://dx.doi.org/10.3390/jmse9060653.

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This study describes the reproductive cell development and ovarian developmental stages, and identifies the nongerminal components of white shrimp (Penaeus schmitti) caught off the southern coast of Espírito Santo, Brazil. P. schmitti specimens were collected monthly from March 2019 to February 2020, by artisanal fishing. All shrimps were analyzed macroscopically (n = 181) and females were randomly selected monthly (n = 154) for ovarian histological analysis. The ovaries were extracted for visual analysis and then submitted to histological analysis. Macroscopic analysis determined five stages of gonadal development from the color and turgidity of the fresh ovary. Histological observations allowed us to observe five stages of gonadal development: immature, initial development, advanced development, mature and spawning. This information are fundamental for understanding the reproductive aspects of P. schmitti, as well as other penaeid shrimps, in order to promote preservation of natural stocks and provide information to assist in the development of the reproductive potential of native species in captivity.

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3

Bray, William A., Addison L. Lawrence, L. James Lester, and Linda L. Smith. "Hybridization of Penaeus setiferus (Linnaeus, 1767) and Penaeus schmitti Burkenroad, 1936 (Decapoda)." Journal of Crustacean Biology 10, no. 2 (May 1990): 278. http://dx.doi.org/10.2307/1548486.

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4

ESPINOSA, G., M. JAGER, Y. BORRELL, E. GARCIA, N. CORONA, A. ROBAINAS, and J. DEUTSCH. "Microsatellir.es genetic markers for white shrimp (Penaeus schmitti)." Biochemical Society Transactions 28, no. 5 (October 1, 2000): A185. http://dx.doi.org/10.1042/bst028a185.

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5

Ramos, Laida, Manuel Espejo, Soraya Samada, and Lourdes Pérez. "Maturation and Reproduction of Pond-Reared Penaeus schmitti." Journal of the World Aquaculture Society 26, no. 2 (June 1995): 183–87. http://dx.doi.org/10.1111/j.1749-7345.1995.tb00242.x.

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6

Garcia Machado, Erik, Mario Oliva Suarez, Nicole Dennebouy, Monique Monnerot, and Jean-Claude Mounolou. "Mitochondrial 16S-rRna Gene of Two Species of Shrimps: Sequence Variability and Secondary Structure." Crustaceana 65, no. 3 (1993): 279–86. http://dx.doi.org/10.1163/156854093x00711.

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AbstractPart of the mitochondrial 16S-ribosomal RNA gene (around 400 nucleotides) of Penaeus notialis and Penaeus schmitti has been amplified and sequenced. The comparison of sequences reveals an 11% nucleotide divergence between the two species. When compared with that of the homologous fragment in Artemia salina and Drosophila yakuba, the secondary structure appears well conserved in spite of high nucleotide divergence due to numerous substitutions and additions/deletions. Sequences have been obtained for six individuals of P. notialis belonging to the same population, their comparison shows a 0.7% nucleotide diversity.

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7

Griffith, D. R. W., and J. M. Wigglesworth. "Growth rhythms in the shrimp Penaeus vannamei and P. schmitti." Marine Biology 115, no. 2 (February 1993): 295–99. http://dx.doi.org/10.1007/bf00346347.

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8

Cabrera, E., R. Pimentel, Z. Abad, J. C. Piña, O. Hernandez, R. Lleonart, and J. de la Fuente. "Transient transformation of shrimp (Penaeus schmitti) embryos by DNA microinjection." Theriogenology 43, no. 1 (January 1995): 180. http://dx.doi.org/10.1016/0093-691x(95)92334-6.

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9

Huberman, A., M. B. Aguilar, I. Navarro–Quiroga, Laida Ramos, Isis Fernández, F. M. White, and D. F. Hunt. "A hyperglycemic peptide hormone from the Caribbean shrimp Penaeus (litopenaeus) schmitti☆." Peptides 21, no. 3 (March 2000): 331–38. http://dx.doi.org/10.1016/s0196-9781(00)00155-8.

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10

Carvalho, Athina da Silva, Ádila Patrícia Chaves Silva, Ana Luiza Caldas Diniz, Isa Rosete Mendes Araújo Nascimento, Jéssica Pereira Souza, and Zafira da Silva de Almeida. "Biologia reprodutiva do camarão-branco, Penaeus schmitti (Decapoda, Penaeidae), na Área de Proteção Ambiental do Delta do Parnaíba-MA." Research, Society and Development 10, no. 10 (August 6, 2021): e120101018554. http://dx.doi.org/10.33448/rsd-v10i10.18554.

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Penaeus schmitti é uma espécie de grande importância para o estado do Maranhão, porém estudos acerca de sua biologia são pouco conhecidos no estado, o que torna essencial a realização de tais estudos, uma vez que estes auxiliam no manejo correto da espécie e consequentemente a preservação da mesma. Desta forma, este trabalho teve por objetivo caracterizar os aspectos reprodutivos de P. schmitti no município de Tutóia, Maranhão, através de análises macroscópicas das gônadas, da determinação do comprimento, da proporção sexual e primeira maturidade. Durante o período de um ano foram analisados 240 exemplares. As diferenças na proporção sexual foram testadas pelo teste do qui-quadrado (χ2) ao nível de significância de 0,05. Quanto a proporção sexual, constatou-se que as fêmeas tiveram maior representatividade que os machos, demonstrando assim, respetivamente, 57% e 43% do total amostrado. Ao realizar a análise da distribuição por classe de comprimento de P. schmitti, percebeu-se que as fêmeas se apresentaram maiores que os machos. Onde o comprimento médio das fêmeas foi de 11,08 cm e do machos 10,07 cm. Não foi possível constatar o período reprodutivo da espécie devido à ausência de indivíduos em estádio maturo. O tamanho encontrado da primeira maturação de P. Schmitti foi de 9,49 cm. Valor inferior aos que foram encontrados em outras regiões no nordeste do Brasil. Diante das informações obtidas são sugeridas medidas de gerenciamento e conservação da espécie visando a exploração racional do recurso.

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11

Rosas, Carlos, Adolfo Sánchez, Eugenio Díaz-Iglesia, Roberto Brito, Evenor Martinez, and Luis A. Soto. "Critical dissolved oxygen level to Penaeus setiferus and Penaeus schmitti postlarvae (PL10–18) exposed to salinity changes." Aquaculture 152, no. 1-4 (June 1997): 259–72. http://dx.doi.org/10.1016/s0044-8486(96)01516-5.

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12

Nascimento, Glória Cristina Cornélio do, Dimitri De Araújo Costa, Raquel Ferreira de Sá, Martin Lindsey Christoffersen, and Maria Cristina Basilio Crispim. "Artisanal fishing characterization and spatio-temporal occurrence of marine shrimp (Crustacea, Decapoda, Penaeidae) in the littoral of Lucena, Paraíba, Brazil." Ciência e Natura 40 (May 11, 2018): 47. http://dx.doi.org/10.5902/2179460x29813.

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The present study distinguishes types of fishing activities. It records the most economically exploited shrimps in the municipality of Lucena, Paraíba, Xiphopenaeus kroyeri (“espigudo”), and Penaeus schmitti (white shrimp). From October 2014 to October 2015, samples containing 700 gr of shrimp were collected at three sites of artisanal fishing. Data on temperature, ammonium, nitrate, nitrite, chlorophyll-a, salinity, pH, and dissolved oxygen were recorded. Two different shrimp species are commercially used in the region, of 2,628 sampled individuals, X. kroyeri predominated, with 1,957 individuals, followed by P. schmitti, with 671 individuals. At localities 1 (in Lucena beach) and 2 (Fagundes beach) both species were present, the X. kroyeri being predominant, but at locality 3 (Costinha beach) only the P. schmitti was recorded. The regional wet season influenced salinity during the months of the year, producing positive or negative correlations among species found at each locality depending on what was analysed. It is relevant to understand the relationship between fishing resources and environmental variables which provide information about fishing dynamics and permits the development of strategies for the maintenance of stocks and fishing areas, as well as permitting the establishment of public regulations for the better preservation and conservation of marine areas and estuaries on which many species depend for the completion of their life cycles.

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13

Huberman, A., M. B. Aguilar, I. Navarro–Quiroga, Laida Ramos, Isis Fernández, F. M. White, and D. F. Hunt. "Corrigendum to ‘A hyperglycemic peptide hormone from the Caribbean shrimp Penaeus (litopenaeus) schmitti’☆." Peptides 21, no. 5 (May 2000): 753. http://dx.doi.org/10.1016/s0196-9781(00)00223-0.

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14

Borrell, Yaisel Juan, Fernando Arenal, Zosianne Mirelles Mbemba, Omar Santana, Rogelio Díaz-Férnandez, Emilia Vázquez, Gloria Blanco, Jose Antonio Sánchez, and Georgina Espinosa. "Spatial and temporal genetic analysis of the Cuban white shrimp Penaeus (Litopenaeus) schmitti." Aquaculture 272 (2007): S125—S138. http://dx.doi.org/10.1016/j.aquaculture.2007.08.015.

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15

Xichao, X., W. Wenfeng, L. Xin, W. Xueshen, L. Li, and Qianji Ning. "A novel CYP450 gene (CYP4V18) of the shrimp Penaeus schmitti Burkenroad, 1936 (Decapoda, Dendrobranchiata): cloning and down-regulation of CYP4V18 expression by the imidazole derivative KK-42." Crustaceana 86, no. 10 (2013): 1179–90. http://dx.doi.org/10.1163/15685403-00003236.

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The CYP4 family is the most ancient and diversified group of P450 and some members are associated with ecdysteroid metabolism in arthropods. In an attempt to research the possible molecular mechanism of KK-42 action on Penaeus schmitti Burkenroad, 1936, one CYP4 cDNA sequence from the hepatopancreas was first cloned and its spatiotemporal expressions were analysed using real-time PCR, and the haemolymph 20-hydroxyecdysone (20E) level was measured by reverse-phase high-performance liquid chromatography. Results showed that the full-length cDNA contains a 1545 bp open reading frame encoding a predicted protein of 515 amino acids named CYP4V18 by the P450 nomenclature committee. The highest cyp4v18 mRNA level was detected in hepatopancreas. Compared with that of the KK-42 treatment group, the hepatopancreas cyp4v18 expression in the control group increased to >72.3%, even 187.7% () on day 6. The haemolymph 20E levels increased slightly in KK-42-treated shrimps compared to that in controls during the experimental stage. The results show that the hepatopancreas CYP4V18 is not involved in 20E biosynthesis, and likely plays other roles in the shrimp, P. schmitti.

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16

MacKay, Ronald D. "A NOTE ON MINIMAL LEVELS OF OXYGEN REQUIRED TO MAINTAIN LIFE IN Penaeus schmitti." Proceedings of the annual meeting - World Mariculture Society 5, no. 1-4 (February 25, 2009): 451–52. http://dx.doi.org/10.1111/j.1749-7345.1974.tb00213.x.

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17

Siqueira Bueno, Sérgio Luiz. "Maturation and Spawning of the White Shrimp Penaeus schmitti Burkenroad, 1936, Under Large Scale Rearing Conditions." Journal of the World Aquaculture Society 21, no. 3 (September 1990): 170–79. http://dx.doi.org/10.1111/j.1749-7345.1990.tb01019.x.

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18

Xia, Xichao, Wenfeng Wang, Xueshen Wang, Xin Li, and Qianji Ning. "Effects of KK-42 on Expression of 3-Hydroxy-3-Methylglutaryl-Coenzyme A Reductase in Penaeus schmitti." Journal of the World Aquaculture Society 43, no. 1 (February 2012): 91–96. http://dx.doi.org/10.1111/j.1749-7345.2011.00548.x.

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19

Ning, Qian-Ji, Shan-Gang Fu, Xiao-Jun Xu, and Jun-Tao He. "A new and practical application of JH antagonist KK-42 to promoting growth of shrimp Penaeus schmitti." Aquaculture 270, no. 1-4 (September 2007): 422–26. http://dx.doi.org/10.1016/j.aquaculture.2007.04.078.

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20

XIA, Xichao, Xueshen WANG, Xin LI, Li LV, and Qianji NING. "Effects of juvenile hormone antagonist KK-42 on temporal and spatial expressions of FAMeT in shrimp Penaeus schmitti." Journal of Fishery Sciences of China 18, no. 2 (August 27, 2013): 308–13. http://dx.doi.org/10.3724/sp.j.1118.2011.00308.

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21

Vincent, Michel, Laida Ramos, and Mario Oliva. "Variations des pigments caroténoïdes totaux dans i'ovaire et i'hépatopancréas de Penaeus schmitti au cours de la maturation ovarienne." Biochemical Systematics and Ecology 16, no. 4 (January 1988): 431–36. http://dx.doi.org/10.1016/0305-1978(88)90040-3.

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22

Peixoto, Silvio Peixoto, Nathalia Calazans, Emanuell Silva, Leandro Nole, Roberta Soares, and Flavia Fredou. "Reproductive cycle and size at first sexual maturity of the white shrimp Penaeus schmitti (Burkenroad, 1936) in northeastern Brazil." Latin American Journal of Aquatic Research 46, no. 1 (March 10, 2018): 1–9. http://dx.doi.org/10.3856/vol46-issue1-fulltext-1.

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23

Barioto, João G., Gilson Stanski, Raphael C. Grabowski, Rogerio C. Costa, and Antonio L. Castilho. "Ecological distribution of Penaeus schmitti (Dendrobranchiata: Penaeidae) juveniles and adults on the southern coast of São Paulo state, Brazil." Marine Biology Research 13, no. 6 (May 9, 2017): 693–703. http://dx.doi.org/10.1080/17451000.2017.1287923.

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24

Vincent, M., L. Ramos Et, and L. Oliva. "Variations qualitatives et quantitatives des pigments caroténoïdes dans ‘ovaire et ‘hépatopancréas de Penaeus schmitti au cours de la maturation ovarienne." Archives Internationales de Physiologie et de Biochimie 96, no. 3 (January 1988): 155–64. http://dx.doi.org/10.3109/13813458809075939.

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25

Nascimento, Iracema Andrade, William A. Bray, Joanna R. Leung Trujillo, and Addison Lawrence. "Reproduction of ablated and unablated Penaeus schmitti in captivity using diets consisting of fresh-frozen natural and dried formulated feeds." Aquaculture 99, no. 3-4 (December 1991): 387–98. http://dx.doi.org/10.1016/0044-8486(91)90257-8.

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26

de Carvalho, Cássia, Lídia M. Y. Oshiro, and Karina A. Keunecke. "Growth and mortality analyses of the white shrimp Penaeus schmitti (Decapoda: Penaeidae) in Sepetiba Bay, Brazil: An exploited data-deficient species." Regional Studies in Marine Science 42 (February 2021): 101641. http://dx.doi.org/10.1016/j.rsma.2021.101641.

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27

Marangos, Chr, L. Ramos Et, and M. Oliva. "Variations des teneurs en protéines de ‘hémolymphe, de ‘hépatopan-créas et de ‘ovaire de Penaeus schmitti au cours de la maturation ovarienne (Crustacea, Decapoda, Peneidae)." Archives Internationales de Physiologie et de Biochimie 96, no. 3 (January 1988): 179–90. http://dx.doi.org/10.3109/13813458809075942.

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28

Rosas, Carlos, Adolfo Sanchez, Eugenio Diaz, Luis A. Soto, Gabriela Gaxiola, and Roberto Brito. "Effect of Dietary Protein Level on Apparent Heat Increment and Post-Prandial Nitrogen Excretion of Penaeus setiferus, P. schmitti, P. duorarum, and P. notialis Postlarvae." Journal of the World Aquaculture Society 27, no. 1 (March 1996): 92–102. http://dx.doi.org/10.1111/j.1749-7345.1996.tb00598.x.

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29

Coles, RG, WJ Lee Long, BA Squire, LC Squire, and JM Bibby. "Distribution of seagrasses and associated juvenile commercial penaeid prawns in north-eastern Queensland waters." Marine and Freshwater Research 38, no. 1 (1987): 103. http://dx.doi.org/10.1071/mf9870103.

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Thirteen species of seagrass and six species of juvenile penaeid prawn of commercial importance were found in seagrass beds in waters between Cape York and Cairns. The pioneering seagrass species, Halodule uninemis (Forsk.) Aschers, and Halophila ovalis (R. Br.) Hook. f., were present in almost all coastal areas. Two seagrass species often dominant in the tropics, Enhalus acoroides (L.f.) Royle and Thalassia hemprichii (Ehrenb.) Aschers., were uncommon. This is likely to have resulted from environmental stress during periods of reduced salinity and high turbidity associated with seasonal summer rainfall. Halophila decipiens Ostenfeld was the only species found in depths > 11 m. Three depth-related zones of species are described. With the exception of E. aroroides, most seagrasses were <20 cm in height. Seagrass biomass was greatest in 2-6 m of water. Maximum dry weight of above-ground plant material and maximum leaf area from a square metre of bottom was 99.6 g and 4.5 m2, respectively, at the Flinders Group of islands. The distribution of prawns and seagrasses did not show a trend with latitude. Penaeus esculentus Haswell and Metapenaeus endeavouri (Schmitt), the most numerous penaeid prawn species in commercial trawl catches, were also the most numerous juvenile prawns in seagrass beds. Juvenile P. longistylus Kubo were found for the first time in northern Queensland seagrass beds. Although juveniles of this species appeared to occupy only a narrow habitat range, these habitats were found in coastal bays, in estuaries and on coral-reef platforms where conditions were suitable. Size-class data suggest that reef prawns and coastal prawns are parts of the same population. The timing of the life cycle of the major commercial prawn species differed from that found previously in the Gulf of Carpentaria.

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30

SIM-SMITH, CARINA, and MICHELLE KELLY. "Review of the sponge genus Penares (Demospongiae, Tetractinellida, Astrophorina) in the New Zealand EEZ, with descriptions of new species." Zootaxa 4638, no. 1 (July 15, 2019): 1–56. http://dx.doi.org/10.11646/zootaxa.4638.1.1.

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The genus Penares Gray 1867 (Tetractinellida Marshall; Astrophorina Sollas; Geodiidae Gray) is reviewed from new and existing New Zealand collections, with 75 specimens examined and registered. The only species known from New Zealand prior to this study, P. tylotaster Dendy 1924, is re-examined and re-described from the holotype, using new scanning electron microscope images. Nine new species are described from New Zealand’s Exclusive Economic Zone: P. mollis sp. nov., P. aureus sp. nov., P. vermiculatus sp. nov., P. kermadecensis sp. nov., P. turmericolor, sp. nov., P. deformis sp. nov., P. okokewae sp. nov., P. orbis sp. nov., and P. astronavis sp. nov. A specimen of P. schulzei (Dendy 1905), first described from Sri Lanka and subsequently recorded from New Caledonia, was also found in New Zealand, extending the range of this species. This study brings the total New Zealand Penares fauna to 11 species, making a significant contribution to the now, global total of 39 species. All previously described Penares species are reviewed based on their published descriptions, and species names have been corrected to their masculine form. Based on the published description of P. obtusus Lendenfeld 1907, it is recommended that this species be reassigned to the genus Stelletta Schmidt 1862.

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31

Schobert, Rainer, Markus Petermichl, and Christine Steinert. "A Synthetic Route to the MT1-MMP Inhibitor Ancorinoside D." Synthesis 51, no. 03 (September 26, 2018): 730–38. http://dx.doi.org/10.1055/s-0037-1610287.

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A methyl ester of ancorinoside D, a 3-acyltetramic acid metabolite of a sponge Penares sollasi, was synthesised in ten steps starting from a protected β-d-glucopyranosyl-(1→4)-d-galactopyranosyltrichloroacetimidate donor. Its attachment to the left half of the 3-acyl spacer by a Schmidt glycosylation, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation to the uronic acid, introduction of the Z-alkene via Wittig reaction, and functionalisation of the spacer terminus with Meldrum’s acid gave a β-keto ester that reacted with dimethyl N-methyl-d-aspartate under neutral conditions to afford a fully protected ancorinoside D as the product of an unusual domino N-acylation–Dieckmann condensation. Global deprotection left a methyl ester of ancorinoside D, which resisted all saponification attempts.

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32

VAN SOEST, ROB W. M. "Sponges of the Guyana Shelf." Zootaxa 4217, no. 1 (January 12, 2017): 1. http://dx.doi.org/10.11646/zootaxa.4217.1.1.

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Sponges collected on the Guyana Shelf, predominantly in Suriname offshore waters, by Dutch HMS ‘Snellius’ O.C.P.S. 1966, HMS ’Luymes’ O.C.P.S. II 1969, and HMS ‘Luymes’ Guyana Shelf 1970 expeditions are described in this study. Sponges were obtained by trawling, dredging or grabbing on sandy, muddy, shelly, and fossil reef bottoms at 88 stations between 19 and 681 m depth. A total of 351 samples were identified to species level, each consisting of one or more specimens of a given species from each individual station (together comprising 547 individuals and fragments). The collection yielded 119 species together belonging to all sponge classes, but in large majority are Demospongiae. All species are identified to species level, occasionally tentatively, and all are described and illustrated. A new subgenus is proposed, Tedania (Stylotedania) subgen. nov. and a previously synonymized genus, Tylosigma Topsent, 1894 is revived. Thirtysix species were found to be new to science, excluding the first Central West Atlantic record of the genus Halicnemia, not named at the species level because of lack of sufficient material. The new species erected are, in alphabetical order: Amphoriscus ancora sp. nov., Biemna rhabdotylostylota sp. nov., Callyspongia (Callyspongia) scutica sp. nov., Chelonaplysilla americana sp. nov., Cladocroce guyanensis sp. nov., Clathria (Axosuberites) riosae sp. nov., Clathria (Clathria) gomezae sp. nov., Clathria (Microciona) snelliusae sp. nov., Clathria (Thalysias) complanata sp. nov., Clathria (Thalysias) zeai sp. nov., Coelosphaera (Coelosphaera) lissodendoryxoides sp. nov., Craniella crustocorticata sp. nov., Diplastrella spirastrelloides sp. nov., Epipolasis tubulata sp. nov., Erylus rhabdocoronatus sp. nov., Erylus surinamensis sp. nov., Geodia pocillum sp. nov., Geodia sulcata sp. nov., Hemiasterella camelus sp. nov., Hymedesmia (Stylopus) alcoladoi sp. nov., Hymenancora cristoboi sp. nov., Penares sineastra sp. nov., Hymerhabdia kobluki sp. nov., Leucosolenia salpinx sp. nov., Petrosia (Strongylophora) devoogdae sp. nov., Placospongia ruetzleri sp. nov., Pyloderma tropicale sp. nov., Raspailia (Parasyringella) thamnopilosa sp. nov., Raspailia (Raspailia) johnhooperi sp. nov., Sphaerotylus bouryesnaultae sp. nov., Spirastrella erylicola sp. nov., Stelletta vervoorti sp. nov., Suberites crispolobatus sp. nov., Tedania (Stylotedania) folium subgen. nov. sp. nov., Timea tylasterina sp. nov., and Tylosigma ostreicola sp. nov. Two new combinations are proposed: Amphimedon nanaspiculata (Hartman, 1955) comb. nov. and Oceanapia ascidia (Schmidt, 1870) comb. nov. In addition, for two preoccupied combinations, new names, Coelosphaera (Coelosphaera) barbadensis nom. nov. and Hymedesmia (Hymedesmia) rowi nom. nov., are erected. The spatial distribution of the collected specimens over the Guyana Shelf was traced and the results were compared with existing information on bottom conditions. There was a convincing correlation between the location of fossil reefs and other hard substrates such as shell ridges with peaks in the occurrence of species diversity and specimen numbers. Stations made on sand and mud bottoms away from these zones of hard substrates were generally poor in species, but some were found to be rich in individuals of specialized soft bottom dwellers such as Tetilla pentatriaena, Tribrachium schmidtii, Fangophilina submersa, and Oceanapia species. The species composition of the Guyana Shelf was compared with that of neighbouring regions of the Caribbean and from North and East Brazil (Díaz in Miloslavich et al. 2010; Muricy et al. 2011). About 35% of the species encountered are widespread in the Central West Atlantic, occurring both to the north and to the south. Indications that the Guyana Shelf sponge fauna is clearly transitional are southernmost occurrences for Caribbean species (about 30%), and northernmost occurrences of Brazilian species (13%), with a high proportion (25%) of new species, which may be expected to have distributions extending to the Caribbean, to Brazil or both regions.

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Takahashi, Ari Tomi, Marie Imai, and Marcio Rogério Grosskpof. "CONSIDERAÇÕES SOBRE MATURAÇÃO DAS FEMEAS DE Penaeus schmitti." Revista Nerítica 1, no. 1 (April 22, 2015). http://dx.doi.org/10.5380/rn.v1i1.41025.

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De Paiva, Paulo Cesar, and José Roberto Machado Cunha da Silva. "Macrobenthic invertebrates as food for a penaeid shrimp pond farm in Brazil." Revista de Biología Tropical, June 17, 2015, 427–30. http://dx.doi.org/10.15517/rbt.v46i2.19686.

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El macrobentos de estanques de cultivo de Penaeus subitilis y Penaeus schmitti se estudió en la costa nordeste de Brasil durante 12 semanas. El poliqueto Laeonereis culveri (2 433 indl0.1m2) y el anfípodo Grandidierella bonnieroides (2 726 indiO. 1m2) fueron intensamente depredados .por los peneidos. Ningún individuo de G. bonnieroides sobrevivió más de seis semanas: en el tiempo restante L. culveri, que también puede reclutarse en el periodo, fue el principal recurso natural alimenticio disponible

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35

Mariño, Joany, María Daniela Mendoza, and Beatriz López-Sánchez. "Composition and abundance of decapod crustaceans in mixed seagrass meadows in the Paraguaná Peninsula, Venezuela." Iheringia. Série Zoologia 108 (March 26, 2018). http://dx.doi.org/10.1590/1678-4766e2018004.

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ABSTRACT Thalassia testudinum and Halodule wrigthii are the dominant seagrasses in the Caribbean, being common across shallow shorelines, either as monospecific or as intermixed meadows. Among the macrofauna associated with these beds, crustaceans are considered essential for the whole ecosystem functioning. However, knowledge about the associated community of decapod crustaceans in assemblages of T. testudinum and H. wrigthii is still scarce, particularly outside of protected areas. Here we report eight new decapod species for the Paraguaná Peninsula (Falcón State, Venezuela) in association with intermixed seagrass beds: Achelous tumidulus Stimpson, 1871, Alpheus aff. floridanus Kingsley, 1878, Chorinus heros (Herbst, 1790), Clibanarius antillensis (Stimpson, 1859), Clibanarius sclopetarius (Herbst, 1796), Latreutes parvulus (Stimpson, 1866), Panopeus occidentalis Saussure, 1857, and Processa fimbriata Manning & Chace, 1971. These records represent habitat extensions and fill gaps in the geographical distribution of the species along the northern coast of South America. Furthermore, we found that statistical differences in decapod species abundance and composition are likely to be caused by the joint action of coverage and heterogeneity of the beds. Our results indicate that typical Caribbean species were the most influential in the community; nevertheless, the abundance of juvenile Penaeus schmitti Burkenroad, 1936 was notable, since they have rarely been found in these habitats. This finding highlights the role of non-protected areas as nursery habitats for economically important species. Our results show that seagrass meadows in the Paraguaná Peninsula reflect overall good health when compared to other Caribbean zones, representing an important habitat for the maintenance of crustacean populations.

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