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Journal articles on the topic 'Pejerrey'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Baigún, Claudio R. M., Darío C. Colautti, and Fabian Grosman. "Assessment of condition in pejerrey Odontesthes bonariensis (Atheriniformes: Atherinopsidae) populations: which index works best?" Neotropical Ichthyology 7, no. 3 (September 2009): 439–46. http://dx.doi.org/10.1590/s1679-62252009000300011.

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The pejerrey Odontesthes bonariensis is the most important target species in temperate freshwater fisheries of Argentina, and assessment of condition has been a regular practice and common diagnostic tool. Most pejerrey fishery studies have used Fulton's (K) index, without testing whether underlying assumptions or requirements were met. We analyzed and contrasted the applicability of K, Kn and Wr indices to assess condition status in several pejerrey populations inhabiting Pampean lakes. Our results showed that whereas Wr and Kn displayed significant condition changes across length at some study lakes, Kn portrayed a small range of variation. We also noted that pejerrey maximum length and size structure strongly varied among populations probably due to the characteristics of trophic niche changes through lifespan, depending on lake limnological characteristics and zooplankton availability. We conclude that the K index should be disregarded in those cases where populations show allometric growth and size ranges strongly vary. In turn, the Kn index appears to be only appropriate for regular within population assessment, being difficult to apply when comparisons between populations are needed and when they exhibit different weight-length relationship slopes. Finally, the Wr index should be strongly preferred if the objective is to perform comparisons between pejerrey populations, particularly when population structure is not well known, stocking has been used for population recovery, lakes are strongly supported by limnological changes, data are limited to only one or few samplings and metaphoetesis is suspected in pejerrey populations.

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2

Solimano, Patricio J., Javier R. Garcia de Souza, Tomás Maiztegui, Claudio R. M. Baigún, and Darío C. Colautti. "New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)." Neotropical Ichthyology 13, no. 1 (March 24, 2015): 213–20. http://dx.doi.org/10.1590/1982-0224-20140078.

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The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing techniques. The aim of this study was to evaluate the possibility to achieve and maintain high growth rates of pejerrey throughout the rearing process by semi-intensive culture method . Four floating cages were installed in La Salada de Monasterio Lake and each one was stocked with 300 juveniles (10.22 ±0.38cm; 6.52 ±0.82g). From January through March all fish were exposed to natural zooplankton as food source, whereas from April to September two cages were supplied daily with artificial food. The fish exposed to artificial supplementary diets exhibited significantly higher growth (17.5 ±0.98cm; 41.05 ±8.55g) than those in the control cages (15.02 ±0cm ; 23.5 ±0.84g), and exceeded the known values in pejerrey culture. The results suggest that the species potential growth is not fully achieved by common intensive methods and it can be improved by semi-intensive techniques. Accordingly a better understanding of the species nutritional requirements is needed to improve growth rates and enhance pejerrey culture.

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3

Morato-Fernandes, J., R. A. Tavares, C. B. Rocha, J. L. O. F. Pouey, and S. R. N. Piedras. "Benzocaine and clove oil as anesthetics for pejerrey (Odontesthes bonariensis) fingerlings." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 65, no. 5 (October 2013): 1441–46. http://dx.doi.org/10.1590/s0102-09352013000500024.

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Pejerrey (Odontesthes bonariensis) is a native species from Rio Grande do Sul, Uruguay and Argentina where it is of great economic importance for artisanal fishing. One difficulty in laboratory research with pejerrey is related to its sensitivity, as it presents higher basal cortisol levels than other freshwater species. For this reason, the aim of this work was to evaluate the efficiency of benzocaine and clove oil as anesthetics for pejerrey fingerlings. Two experiments were done where fingerlings (57±7.8mm and 1.1±0.44g) were exposed to benzocaine with concentrations between 40mgL-1 and 120mgL-1 and to clove oil with concentrations between 12mgL-1 and 75mgL-1. Survival, anesthesia induction time and recovery time for each pharmaceutics were evaluated. Both benzocaine and clove oil pharmaceutics showed efficiency as anesthetics for pejerrey fingerlings, with negative correlation between the dose of anesthetics and the anesthesia induction time. For benzocaine, the concentrations between 80mgL-1 and 100mgL-1 showed better results, as for clove oil the optimal concentrations were between 25mgL-1 and 50mgL-1. On the other hand, the anesthesia recovery time did not present significant variation on the different concentrations of the tested products. The tested products are highly metabolizable by pejerrey.

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4

Chalde, Tomás, Daniel A. Fernández, Víctor E. Cussac, and Gustavo M. Somoza. "The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis: morphological indicators of development." Neotropical Ichthyology 9, no. 4 (November 1, 2011): 747–56. http://dx.doi.org/10.1590/s1679-62252011005000040.

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It is well known that in pejerrey water temperature not only affects growth rates but also directs the sexual differentiation process. This fact rise the question of how different the development of pejerrey larvae of the same age is when reared at different temperatures. A description of developmental stages for the embryonic and larval periods of the pejerrey, Odontesthes bonariensis, and the influence of rearing temperature on larval development are presented. Then, larval development was studied at three rearing temperatures, and changes in general morphology, fin morphology, and caudal fin structure have been taken into consideration within the thermal range involved in the temperature sex determination of this species. Fin fold reabsorption, caudal fin formation, and body shape were selected to follow the events leading to the acquisition of the juvenile morphology. The juvenile phenotype was defined when the fin fold was reabsorpted and the caudal fin acquired its definitive homocercal structure. The moment at which the juvenile phenotype was achieved, was evaluated in relation to larval age, size and, shape. The size resulted as the best indicator of development in pejerrey.

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5

del Fresno, Pamela Sabrina, Darío César Colautti, Gustavo Emilio Berasain, and Leandro Andrés Miranda. "Comparative Analysis of Pejerrey Fish (Odontesthes bonariensis) Gonadal Development During Two Consecutive Spawning Seasons in Relation to Sex Steroids and Temperature Variation in Cochicó Lake (Pampas Region, Argentina)." Turkish Journal of Fisheries and Aquatic Sciences 21, no. 07 (April 26, 2021): 347–55. http://dx.doi.org/10.4194/1303-2712-v21_7_04.

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Cochicó belongs to “Encadenadas del Oeste” system of lakes being a typical water body of the Pampas region. The most abundant fish species in this lake is the pejerrey (Odontesthes bonariensis) valued due to the quality of its flesh and as a game fish. The aim of this study was to compare the gonadal stages of pejerrey during two consecutive spawning seasons (August to December) in relation to sexual steroids and temperature in this lake. In general, pejerrey gonadal development, the Gonadosomatic index and the plasma levels of estradiol and testosterone fluctuated in relation with temperature. In 2014 samplings, females started to ovulating in early August, with a peak during September-October and ending in December with many of them with atretic oocytes. However, in 2015, a marked delay in maturation was observed with ovulated fish only in October and December. This fact may be because the minors mean temperatures recorded in this year. For males, it was possible to find spermiating animals during the whole spawning season and only arrested animals in December. Unexpectedly, histological gonadal analysis revealed for the first time pejerrey with testis-ova, probably due to the intensive use of agrochemicals in this region.

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6

Majhi, S. K., R. S. Hattori, and C. A. Strussmann. "105. TRANSPLANTED GERM CELLS CAN COLONIZE THE GONADS OF SEXUALLY COMPETENT FISH AND PRODUCE FUNCTIONAL GAMETES." Reproduction, Fertility and Development 21, no. 9 (2009): 24. http://dx.doi.org/10.1071/srb09abs105.

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Germ cell (GC) transplantation (GCT) has great potential for seed production and conservation of valuable germlines. Currently available approaches to GCT in fish rely on sophisticated equipment and skills for cell transplantation into the blastodisc of embryos and/or the peritoneal cavity of small, sometimes few millimeters long larvae. Moreover, transplanted individuals may take years to grow to maturity, adding to the cost of producing surrogate gametes. In this context, the use of intragonadal GCT into sexually competent recipients that have been experimentally depleted of endogenous GCs might overcome these constraints. Here we demonstrate the feasibility of xenogeneic GCT in sexually competent fish. Spermatogonial cells isolated from pejerrey (Odontesthes bonariensis, Atherinopsidae) donors were implanted surgically into the testes of congeneric Patagonian pejerrey (O. hatcheri) that were severely depleted of endogenous GCs by treatment with Busulfan (40 mg/kg) and elevated water temperature (25°C) (Fig. 1).Donor cell behavior inside the recipient gonads was tracked using fluorescent cell linkers (CFDA-SE and PKH-26) and showed that transplanted spermatogonial cells were able to migrate towards, settle and multiply at the blind ends (cortical region) of the seminiferous lobules. The presence of donor-derived sperm was confirmed by PCR in 20% of the surrogate Patagonian pejerrey fathers at 6 months and fertilization of pejerrey eggs with surrogate sperm produced 1.2-13.3% pure pejerrey offspring (Fig. 2). These findings indicate that transplantation of spermatogonial cells into sexually competent fish can shorten considerably the production time of surrogate gametes and offspring. Ongoing studies are examining (low-tech) refinements in the proposed approach, such as non-surgical transplantation of GCs through genital papilla, and the suitability of GCT for generation of female gametes, for which cryopreservation techniques have not yet been developed. The results obtained so far have been encouraging and these developments will make GCT invaluable for the timely rescue of fish speciesfacing imminent extinction.

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7

Conte-Grand, Cecilia, Julie Sommer, Guillermo Ortí, and Víctor Cussac. "Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals." Neotropical Ichthyology 13, no. 1 (March 2015): 137–50. http://dx.doi.org/10.1590/1982-0224-20130094.

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The original distribution area of the Patagonian 'pejerrey' Odontesthes hatcheri has been subjected to the introduction of a related species; the Bonaerensean 'pejerrey' Odontesthes bonariensis. This species currently coexists with O. hatcheri in lakes and reservoirs, and can interbreed and produce fertile hybrid offspring. The purposes of this study were; a) the extensive sampling of Patagonian and Andean-Cuyan populations of pejerrey, b) the species identification according to taxonomic key, c) validation of taxonomic results on the basis of mitochondrial DNA composition, and d) applying morphometric analysis to explore the effects of hybridization and environmental conditions on body shape. Cytochrome b sequence analysis showed a high degree of genetic divergence between species and low intraspecific variation in O. hatcheri. Geometric Morphometric Analyses detected shape differences in agreement with diagnostic characteristics of each species. Putative hybrids exhibiting intermediate diagnostic characteristics were identified by Geometric Morphometric Analysis. Significant regressions between body shape and total phosphorus and altitude were found, suggesting a dependence on trophic web structure. This multi-level approach suggests the introgression of O. bonariensis into several O. hatcheri populations throughout Patagonia. Managers should take this into account when considering further exotic introductions into regions where non-native fishes have not yet become established.

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8

Piedras, Sérgio Renato Noguez, Juvêncio Luís Osório Fernandes Pouey, Paulo Roberto Rocha Moraes, and Daniela Fençon Cardoso. "Lethal concentration (CL50) of un-ionized ammonia for pejerrey larvae in acute exposure." Scientia Agricola 63, no. 2 (April 2006): 184–86. http://dx.doi.org/10.1590/s0103-90162006000200011.

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Ammonia results from decomposition of effluents organic matter, e.g. feed wastes and fish faeces. Its un-ionized form can be toxic because diffuses easily through fish respiratory membranes, damaging gill epithelium and impairing gas exchanges. The objective of this work was determining the 96-hour CL50 of un-ionized ammonia for newly hatched pejerrey Odontesthes bonariensis larvae. Trials were set up completely randomized design, with three different concentration of un-ionized ammonia (0.57, 0.94, and 1.45 mg L-1 NH3-N) and a control treatment (n = 3). Experimental units were 20-L, aerated aquaria stocked with 20 larvae (average weight 3.9 mg). Pejerrey larvae exposed to un-ionized ammonia during 96 hours present 50% mortality at 0.71 mg L-1 NH3-N.

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9

Tsuzuki, M. Y., K. Ogawa, C. A. Strüssmann, M. Maita, F. Takashima, and C. M. R. Melo. "The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 59, no. 5 (October 2007): 1301–7. http://dx.doi.org/10.1590/s0102-09352007000500030.

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The role of cortisol on the osmoregulation of pejerrey Odontesthes bonariensis at different salinities was investigated in adult fish injected with 0.7mg hydrocortisone per 100g body weight of fish, and transferred to 0, 5 and 20ppt of NaCl. Blood cortisol was 566ng/ml at the beginning of the experiment (0h) but surged to 1250ng/ml within 3h in cortisol-injected fish. Cortisol levels were influenced not only by treatment but also by time, being higher at 3h compared to 24h. Salinity level, time of exposure and their interaction, but not cortisol treatment, significantly affected plasma osmolality and the concentration of ions Cl- and Na+. This study showed that exogenous cortisol does not seem to play a significant role on the regulation of plasma osmolality and concentration of individual ions in pejerrey.

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10

Struussmann, C. A., S. Moriyama, E. F. Hanke, J. C. Calsina Cota, and F. Takashima. "Evidence of thermolabile sex determination in pejerrey*." Journal of Fish Biology 48, no. 4 (April 1996): 643–51. http://dx.doi.org/10.1111/j.1095-8649.1996.tb01459.x.

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11

Strüssmann, C. "Evidence of thermolabile sex determination in pejerrey." Journal of Fish Biology 48, no. 4 (April 1996): 643–51. http://dx.doi.org/10.1006/jfbi.1996.0064.

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12

Strussmann, Carlos Augusto, and Fumio Takashima. "Basic studies on the culture of pejerrey. I. PNR, histology and morphometry of starved pejerrey Odontesthes bonariensis larvae." NIPPON SUISAN GAKKAISHI 55, no. 2 (1989): 237–46. http://dx.doi.org/10.2331/suisan.55.237.

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13

Strüssmann, Carlos Augusto, Philippe Renard, He Ling, and Fumio Takashima. "Motility of Pejerrey Odontesthes bonariensis Spermatozoa." Fisheries science 60, no. 1 (1994): 9–13. http://dx.doi.org/10.2331/fishsci.60.9.

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14

Rocha, Cleber Bastos, Mauro Kaster Portelinha, João Morato Fernandes, Aline Conceição Pfaff de Britto, Sérgio Renato Noguez Piedras, and Juvêncio Luís Osório Fernandes Pouey. "Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis)." Revista Brasileira de Zootecnia 43, no. 2 (February 2014): 55–59. http://dx.doi.org/10.1590/s1516-35982014000200001.

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15

Pérez-Sirkin, Daniela I., Mikhail Solovyev, Tomás H. Delgadin, Javier E. Herdman, Leandro A. Miranda, Gustavo M. Somoza, Paula G. Vissio, and Enric Gisbert. "Digestive enzyme activities during pejerrey (Odontesthes bonariensis) ontogeny." Aquaculture 524 (July 2020): 735151. http://dx.doi.org/10.1016/j.aquaculture.2020.735151.

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16

HATAI, Kishio, Ong-ard LAWHAVINIT, Saburoh S. KUBOTA, Kunio TODA, and Norio SUZUKI. "Pathogenicity of Mycobacterium sp. isolated from pejerrey, Odonthestes bonariensis." Fish Pathology 23, no. 3 (1988): 155–59. http://dx.doi.org/10.3147/jsfp.23.155.

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17

Mancini, M., C. Rodriguez, C. Prosperi, V. Salinas, and C. Bucco. "Main diseases of pejerrey (Odontesthes bonariensis) in central Argentina." Pesquisa Veterinária Brasileira 26, no. 4 (December 2006): 205–10. http://dx.doi.org/10.1590/s0100-736x2006000400004.

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Argentina's central region includes an important area covered by shallow pampean lakes and dams. In these environments, fishing of pejerrey Odontesthes bonariensis Valenciennes, 1835 (Pisces, Atherinopsidae), the most important fresh-water fish of the country, is a relevant social activity and also a considerable economic resource. The main diseases found in this species were studied from 1992 to 2003 in the provinces of Córdoba, La Rioja and Santa Fe (30º and 35º S, 61º and 67º W). Most cases were registered in high temperature months. Lernaea sp and Aeromonas hydrophila were the etiological agents most frequently found. The trophic characteristics of the aquatic environments enhanced disease processes and caused massive death of O. bonariensis, due to complex hydrochemical interactions.

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18

Strobl-Mazzulla, Pablo H., Analía Nuñez, Elisabeth Pellegrini, Marie-Madeleine Gueguen, Olivier Kah, and Gustavo M. Somoza. "Progenitor Radial Cells and Neurogenesis in Pejerrey Fish Forebrain." Brain, Behavior and Evolution 76, no. 1 (2010): 20–31. http://dx.doi.org/10.1159/000316022.

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19

HATAI, K., O. LAWHAVINIT, K. TODA, and Y. SUGOU. "Mycobacterium infection in pejerrey, Odonthestes bonariensis Cuvier & Valenciennes." Journal of Fish Diseases 16, no. 4 (July 1993): 397–402. http://dx.doi.org/10.1111/j.1365-2761.1993.tb00873.x.

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20

Grosman, Manuel Fabián. "Variación Estacional en la Dieta de Pejerrey (Odontesthes Bonariensis)." Natura Neotropicalis 1, no. 26 (April 16, 2005): 9–18. http://dx.doi.org/10.14409/natura.v1i26.3646.

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21

Lichtenstein, Gabriel, Mariano Elisio, and Leandro A. Miranda. "Development of sperm cryopreservation techniques in pejerrey Odontesthes bonariensis." Aquaculture 306, no. 1-4 (August 2010): 357–61. http://dx.doi.org/10.1016/j.aquaculture.2010.05.016.

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22

Strüssmann, Carlos Augusto, Fumio Takashima, and Kunio Toda. "Sex differentiation and hormonal feminization in pejerrey Odontesthes bonariensis." Aquaculture 139, no. 1-2 (January 1996): 31–45. http://dx.doi.org/10.1016/0044-8486(95)01161-7.

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23

Fernandino, J. I., L. G. Guilgur, and G. M. Somoza. "Dmrt1 expression analysis during spermatogenesis in pejerrey, Odontesthes bonariensis." Fish Physiology and Biochemistry 32, no. 3 (September 8, 2006): 231–40. http://dx.doi.org/10.1007/s10695-006-9005-9.

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24

Strüssmann, Carlos Augusto, and Fumio Takashima. "Basic studies on the culture of pejerrey. II. Effects of temperature upon survival and histological changes of starved pejerrey Odontesthes bonariensis larvae." NIPPON SUISAN GAKKAISHI 55, no. 2 (1989): 247–54. http://dx.doi.org/10.2331/suisan.55.247.

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25

Campanella, Daniela, Angela Garriz, Dario C. Colautti, Gustavo M. Somoza, and Leandro A. Miranda. "Osmotic induction marking with Alizarin Red S on juveniles of pejerrey, Odontesthes bonariensis (Atherinopsidae)." Neotropical Ichthyology 11, no. 1 (March 2013): 95–100. http://dx.doi.org/10.1590/s1679-62252013000100011.

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Juveniles of pejerrey, Odontesthes bonariensis, were exposed to 0.1% Alizarin Red S (ARS) alone or with a previous immersion in 2.2% saline solution (Osmotic Induction, OI) to enhance the ARS marking method. Fish were marked in the field and immediately released in 1 m3 cages in "La Salada de Monasterio" lagoon, Chascomús, Buenos Aires , Argentina. After 73 days, clear marks were observed in the otoliths, caudal fin rays and scales with both treatments, being the intensity of the signal in the scales of OI+ARS treated fish higher. On the other hand, no marks were observed in the control group on the same structures. Approximately one year post-treatment (385 days), only marks in caudal fin rays were found clearly in OI+ARS treated fish. After this period, no significant differences in total length or weight between marked or control fish were observed and the mortality ranged between 30-40 % in all cages. These results provide strong evidence for the potential applicability of this cost-effective marking technique in differentiation of wild and hatchery-produced pejerrey. The success in the caudal fin rays marking is also important because it is easy to do and does not require the sacrifice of fish.

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26

Fernandes, J. Morato, M. K. Portelinha, C. B. Rocha, J. L. O. F. Pouey, and S. R. N. Piedras. "Occurrence and control of Chilodonella spp. in pejerrey Odontesthes bonariensis." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 63, no. 3 (June 2011): 788–90. http://dx.doi.org/10.1590/s0102-09352011000300039.

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27

Renard, Philippe, Carlos Augusto Strüssmann, He Ling, and Fumio Takashima. "Evaluation of Extenders for Pejerrey Odontesthes bonariensis Sperm." Fisheries science 60, no. 6 (1994): 661–66. http://dx.doi.org/10.2331/fishsci.60.661.

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28

Strüssmann, Carlos Augusto, Ng Boon Choon, Fumio Takashima, and Takashi Oshiro. "Triploidy Induction in an Atherinid Fish, the Pejerrey (Odontesthes bonariensis)." Progressive Fish-Culturist 55, no. 2 (April 1993): 83–89. http://dx.doi.org/10.1577/1548-8640(1993)055<0083:tiiaaf>2.3.co;2.

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29

Olaechea, Pamela. "Protrusion de laabertura bucal en Atherinella serrimover (Teleostei, Atherinidae)." Biotempo 8 (September 2, 2017): 49–53. http://dx.doi.org/10.31381/biotempo.v8i0.864.

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Se describe el diseño estructural involucrado en la apertura bucal del pejerrey brillante (Atherinella serrimover), para entender el mecanismo utilizado por la especie para la captura de alimento y tomando en cuenta su diseño estructural, forma de desplazamiento de los huesos involucrados y grado de protrusión premaxilar. Se comparo con otros modelos de Atherinidae. Por lo evidenciado, se situó a la especie como succionadora-masticadora, lo cual le da la posibilidad de ajustar dicho mecanismo a las características y condiciones de las presas.

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30

Crichigno, Sonia A., Miguel A. Battini, and Víctor E. Cussac. "Early morphological variation and induction of phenotypic plasticity in Patagonian pejerrey." Neotropical Ichthyology 10, no. 2 (June 14, 2012): 341–48. http://dx.doi.org/10.1590/s1679-62252012005000007.

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The aim of this work was to study two aspects of phenotypic plasticity in the Patagonian pejerrey Odontesthes hatcheri (Teleostei: Atherinopsidae) the dependence of the early morphology on developmental time and temperature, and the induction of morphological changes by controlled feeding in juveniles. Newly hatched free embryos, incubated at two different temperatures (13 and 18oC), and juveniles were used for the study and induction of phenotypic plasticity. Body and head shapes were analyzed with geometric morphometrics and linear measurements. Our results showed that shape variation at hatching was related to the bending of the embryo head on the yolk sac, increasing the head-trunk angle due to progressive straightening of the embryo. The head-trunk angle was related with temperature at incubation, with embryos incubated at higher temperature being more bent. Embryos that hatched earlier had bigger yolk sacs than those that hatched later. In juveniles, controlled feeding experiments added new morphological variation to that of wild juveniles. In all comparisons, the slenderness of the head, the size of premaxilla and jaw, and the position of the eye showed an enlarged variation due to controlled feeding. These results will contribute to comprehending the complexity of the morphological variation of O. hatcheri.

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31

Tavares, Rafael Aldrighi, Sérgio Renato Noguez Piedras, João Morato Fernandes, Juvêncio Luis Osório Fernandes Pouey, Verônica Hammes Garcia, Heden Luiz Marques Moreira, and Nelson José Laurino Dionello. "Growth performance of three pejerrey genetic groups in intensive culture system." Semina: Ciências Agrárias 35, no. 5 (November 5, 2014): 2749. http://dx.doi.org/10.5433/1679-0359.2014v35n5p2749.

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32

Somoza, G. M., D. W. Lescheid, L. A. Miranda, F. L. Lo Nostro, L. Magliulo-Cepriano, A. D. Montaner, M. P. Schreibman, J. E. Rivier, and N. M. Sherwood. "Expression of Pejerrey Gonadotropin-Releasing Hormone in Three Orders of Fish1." Biology of Reproduction 67, no. 6 (December 1, 2002): 1864–71. http://dx.doi.org/10.1095/biolreprod.102.004572.

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33

Grosmann, Fabián, Pablo Sanzano, and Daniel Agüeria. "Bioecological aspects of silverside Odontesthes bonariensis of Laguna del Monte." Revista del Museo Argentino de Ciencias Naturales 4 (2002): 13–23. http://dx.doi.org/10.22179/revmacn.4.18.

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34

Gárriz, Ángela, and Leandro A. Miranda. "Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)." Neotropical Ichthyology 11, no. 4 (2013): 831–36. http://dx.doi.org/10.1590/s1679-62252013000400011.

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In the present study it was showed for the first time the ultrastructural morphology of O. bonariensis sperm using electron microscopy techniques. Different kinds of abnormalities were described in fresh and post thawed sperm caused by crogenic protocols. Pejerrey spermatozoon is uniflagellated and is differentiated into three parts: a small roundish head (~1.80µm in length and 1.67µm in width), a midpiece or transitional region (~1.11µm in length and 1.56µm in width), and a long tail or flagellum (~29.08µm). Samples of fresh and post thawed sperm showed evidence of morphological anomalies affecting various intracellular compartments. Spermatozoa with swollen, ruptured, or absent membranes in the head showing excess of cytoplasm, and with alteration of the spatial orientation of the mitochondria were observed. A swollen flagellum was observed containing cytoplasmic vesicles, distributed along the whole length or concentrated in a restricted part of the tail. It was also found a high level of abnormalities (60%) in frozen sperm when compared with normal sperm (18%) reflecting the damage provoked by cryopreservation procedures.

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Guilgur, L. G., L. A. Miranda, and G. M. Somoza. "Characterization of three GnRH cDNA sequences in the pejerrey fish Odontesthes bonariensis." Fish Physiology and Biochemistry 28, no. 1-4 (2003): 39–40. http://dx.doi.org/10.1023/b:fish.0000030470.32151.07.

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Hualde, Juan Pablo, Walter Damián Ceferino Torres, Pablo Moreno, Mirna Ferrada, Mariela Ana Demicheli, Leonardo Javier Molinari, and Carlos Marcelo Luquet. "Growth and feeding of Patagonian pejerrey Odontesthes hatcheri reared in net cages." Aquaculture Research 42, no. 6 (May 2011): 754–63. http://dx.doi.org/10.1111/j.1365-2109.2011.02827.x.

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37

Macoretta, Christian Leandro, and Leandro Andrés Miranda. "Cooling of pejerrey Odontesthes bonariensis (Teleostei, Atherinidae) embryos at sub-zero temperatures." Theriogenology 149 (June 2020): 123–30. http://dx.doi.org/10.1016/j.theriogenology.2020.03.027.

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38

Somoza, Gustavo M., Leandro A. Miranda, Gustavo E. Berasain, Darío Colautti, Mauricio Remes Lenicov, and Carlos A. Strüssmann. "Historical aspects, current status and prospects of pejerrey aquaculture in South America." Aquaculture Research 39, no. 7 (May 2008): 784–93. http://dx.doi.org/10.1111/j.1365-2109.2008.01930.x.

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39

Yamamoto, Yoji, Yan Zhang, Munti Sarida, Ricardo S. Hattori, and Carlos A. Strüssmann. "Coexistence of Genotypic and Temperature-Dependent Sex Determination in Pejerrey Odontesthes bonariensis." PLoS ONE 9, no. 7 (July 18, 2014): e102574. http://dx.doi.org/10.1371/journal.pone.0102574.

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40

Mancini, Miguel, and Fabián Grosman. "Aspectos Poblacionales del Pejerrey Odontesthes Bonariensis en el Embalse Río Tercero, Córdoba." Natura Neotropicalis 2, no. 29 (April 21, 2005): 137–43. http://dx.doi.org/10.14409/natura.v2i29.3732.

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41

Kitancharoen, Nilubol, Kei Yuasa, and Kishio Hatai. "Morphological aspects of Saprolegnia diclina Type 1 isolated from pejerrey, Odonthetes bonariensis." Mycoscience 36, no. 3 (October 1995): 365–68. http://dx.doi.org/10.1007/bf02268615.

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42

Sciara, A. A., J. A. Rubiolo, G. M. Somoza, and S. E. Arranz. "Molecular cloning, expression and immunological characterization of pejerrey (Odontesthes bonariensis) growth hormone." Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 142, no. 3-4 (March 2006): 284–92. http://dx.doi.org/10.1016/j.cbpc.2005.10.015.

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43

Zebral, Yuri Dornelles, Patrícia Gomes Costa, Bruna de Castro Knopp, Luize Real Lansini, Bruna Zafalon-Silva, Adalto Bianchini, and Ricardo Berteaux Robaldo. "Effects of a glyphosate-based herbicide in pejerrey Odontesthes humensis embryonic development." Chemosphere 185 (October 2017): 860–67. http://dx.doi.org/10.1016/j.chemosphere.2017.07.069.

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Chalde, Tomás, Mariano Elisio, and Leandro A. Miranda. "Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season." Neotropical Ichthyology 12, no. 3 (June 23, 2014): 629–34. http://dx.doi.org/10.1590/1982-0224-20130146.

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The aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock. The egg diameter, yolk diameter, and oil droplets area decreased along the spawning season, with higher values in September. Fertilization and hatching rates decreased throughout this period, with highest values in September (88.0%; 55.2%) and the lowest values on December (43.0%; 25.2%). The larvae hatched from eggs obtained on October were the heaviest and longest (1.57 mg; 8.24 mm). The survival rate at 30 days post hatching (dph) was similar in larvae from September and October eggs (66.1%; 62.9%) with a sharp decrease in larvae from November and December eggs (22.4%; 23.3%). Furthermore, the highest body weight (15.1 mg) and total length (15.25 mm) at 30 dph were obtained in larvae from October eggs. The results obtained showed that overall eggs quality was better at the beginning of the spawning period, influencing the larvae performance.

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ITO, LAURO SATORU, MICHIAKI YAMASHITA, and CARLOS AUGUSTO STRÜSSMANN. "Dynamics of heat-induced germ cell loss in pejerrey, Odontesthes bonariensis." Fisheries science 68, sup2 (2002): 1313–14. http://dx.doi.org/10.2331/fishsci.68.sup2_1313.

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Majhi, S. K., R. S. Hattori, Sk M. Rahman, T. Suzuki, and C. A. Strüssmann. "Experimentally induced depletion of germ cells in sub-adult Patagonian pejerrey (Odontesthes hatcheri)." Theriogenology 71, no. 7 (April 2009): 1162–72. http://dx.doi.org/10.1016/j.theriogenology.2008.12.008.

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Elisio, Mariano, Tomás Chalde, and Leandro A. Miranda. "Seasonal changes and endocrine regulation of pejerrey (Odontesthes bonariensis) spermatogenesis in the wild." General and Comparative Endocrinology 221 (September 2015): 236–43. http://dx.doi.org/10.1016/j.ygcen.2015.01.011.

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SAKAI, Tadashi, Nobuyuki TABATA, and Katsuko WATANABE. "Bile pigments in the bile of freshwater fish, rainbow trout, tilapia, and pejerrey." Agricultural and Biological Chemistry 52, no. 12 (1988): 3051–56. http://dx.doi.org/10.1271/bbb1961.52.3051.

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Arranz, S. E., A. A. Sciara, P. Botta, P. Cerutti, M. Tobin, and G. M. Somoza. "Growth hormone-insuline-like growth factor-I system in pejerrey Odontesthes bonariensis (Atheriniformes)." Revista Brasileira de Zootecnia 37, spe (July 2008): 1–7. http://dx.doi.org/10.1590/s1516-35982008001300001.

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Yoshizaki, G., K. Yamaguchi, T. Oota, C. A. Strussmann, and F. Takashima. "Cloning and characterization of pejerrey mitochondrial DNA and its application for RFLP analysis." Journal of Fish Biology 51, no. 1 (July 1997): 193–203. http://dx.doi.org/10.1111/j.1095-8649.1997.tb02524.x.

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