Search Results - "Miranda, Leandro A."

Effects of Anthropic Pollutants Identified in Pampas Lakes on the Development and Reproduction of Pejerrey Fish Odontesthes bonariensis by Miranda, Leandro A., Somoza, Gustavo M.

“…Anthropic activities can seriously affect the health of the organisms inhabiting them, and the observation of any alteration in the reproduction of fish could…”
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Seasonal changes and endocrine regulation of pejerrey ( Odontesthes bonariensis ) spermatogenesis in the wild by Elisio, Mariano, Chalde, Tomás, Miranda, Leandro A

“…Highlights • Pejerrey spermatocyte proliferation occurs during winter under the stimulation of 11-KT induced by FSH through the 11β-hsd. • Pejerrey spermiation…”
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Effects of short periods of warm water fluctuations on reproductive endocrine axis of the pejerrey (Odontesthes bonariensis) spawning by Elisio, Mariano, Chalde, Tomás, Miranda, Leandro A.

“…The aim of this study was to assess fluctuations in daily water temperature in Chascomús Lagoon during one year, and to evaluate whether the highest…”
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Gonadal development in pejerrey (Odontesthes bonariensis) during spawning season in relation with sex steroids and temperature variation in Gómez lake (Pampas region, Argentina) by Fresno, Pamela S Del, Colautti, DarÍo C, Berasain, Gustavo E, Miranda, Leandro A

“…Gómez lake (34 ° 39 'S 61 ° 01' W) is a typical shallow lake of Pampas region placed in the upper area of the Salado river. The most abundant fish species in…”
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High Water Temperatures Impair the Reproductive Ability of the Pejerrey Fish Odontesthes bonariensis: Effects on the Hypophyseal-Gonadal Axis by Soria, Federico N., Strüssmann, Carlos A., Miranda, Leandro A.

“…The aim of this research was to study how high water temperatures impair the reproductive activity of pejerrey Odontesthes bonariensis, an inland-water…”
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Historical aspects, current status and prospects of pejerrey aquaculture in South America by Somoza, Gustavo M, Miranda, Leandro A, Berasain, Gustavo E, Colautti, Darío, Remes Lenicov, Mauricio, Strüssmann, Carlos A

“…The pejerrey Odontesthes bonariensis (Valenciennes, 1835) is an inland water fish from the Pampas region comprising part of Argentina, Uruguay and the South of…”
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Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season by Chalde, Tomás, Elisio, Mariano, Miranda, Leandro A.

“…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,…”
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Effects of heavy metals identified in Chascomús shallow lake on the endocrine-reproductive axis of pejerrey fish (Odontesthes bonariensis) by Gárriz, Ángela, del Fresno, Pamela S., Carriquiriborde, Pedro, Miranda, Leandro A.

“…•Cd, Cr, Cu, Pb and Zn concentrations identified in Chascomús Lake were above the Argentine Law.•Heavy metal exposure alters the expression of some pejerrey…”
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Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes) by Gárriz, Ángela, Miranda, Leandro A.

“…In the present study it was showed for the first time the ultrastructural morphology of O. bonariensis sperm using electron microscopy techniques. Different…”
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Effects of metals on sperm quality, fertilization and hatching rates, and embryo and larval survival of pejerrey fish (Odontesthes bonariensis) by Gárriz, Ángela, Miranda, Leandro A.

“…Some species of fish have been used as bioindicators of aquatic environmental pollution all over the world. Pejerrey ( Odontesthes bonariensis ) was selected…”
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Molecular cloning and expression analysis of Fshr and Lhr in relation to Fshb and Lhb subunits during the period of temperature-dependent sex determination in pejerrey Odontesthes bonariensis by Shinoda, Takahiro, Miranda, Leandro A., Okuma, Kozue, Hattori, Ricardo S., Fernandino, Juan I., Yoshizaki, Goro, Somoza, Gustavo M., Strüssmann, Carlos A.

“…In this study, we cloned and characterized the follicle stimulating hormone receptor (Fshr) and luteinizing hormone receptor (Lhr) cDNAs of pejerrey…”
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Influence of climate variations on Chascomús shallow lake thermal conditions and its consequences on the reproductive ecology of the Argentinian Silverside (Odontesthes bonariensis—Actinopterygii, Atherinopsidae) by Elisio, Mariano, Vitale, Alejandro, Miranda, Leandro A.

“…It is well known that water temperature directly affects fish reproduction. The aim of this study was to develop a predictive model to determine water…”
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Exposure to E2 and EE2 environmental concentrations affect different components of the Brain-Pituitary-Gonadal axis in pejerrey fish (Odontesthes bonariensis) by Gárriz, Ángela, del Fresno, Pamela S., Miranda, Leandro A.

“…The present study focuses on the effects of E2 and EE2 environmental concentrations on different components of the reproductive axis of pejerrey (Odontesthes…”
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Seasonal changes and endocrine regulation of pejerrey (Odontesthes bonariensis) oogenesis in the wild by Elisio, Mariano, Chalde, Tomás, Miranda, Leandro A.

“…The goal of this study was to evaluate the essential components controlling the brain–pituitary–gonad axis during pejerrey (Odontesthes bonariensis) oogenesis…”
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Characterization of the cDNAs Encoding Three GnRH Forms in the Pejerrey Fish Odontesthes bonariensis (Atheriniformes) and the Evolution of GnRH Precursors by Guilgur, Leonardo G, Ortí, Guillermo, Strobl-Mazzulla, Pablo H, Fernandino, Juan I, Miranda, Leandro A, Somoza, Gustavo M

“…Most vertebrates express two gonadotropin releasing hormone (GnRH) variants in brain tissue but there is an increasing number of fish species for which a third…”
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Brain aromatase from pejerrey fish ( Odontesthes bonariensis): cDNA cloning, tissue expression, and immunohistochemical localization by Strobl-Mazzulla, Pablo H., Moncaut, Natalia P., López, Gabriela C., Miranda, Leandro A., Canario, Adelino V.M., Somoza, Gustavo M.

“…The brain-type aromatase (CYP19A2) cDNA from pejerrey Odontesthes bonariensis was characterized. Its sequence differs from the ovarian-derived aromatase…”
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Influences of ENSO and PDO phenomena on the local climate variability can drive extreme temperature and depth conditions in a Pampean shallow lake affecting fish communities by Mariano, Elisio, Carolina, Vera, Miranda Leandro, A.

“…The aim of this study was to characterize occurrence of extreme temperature and depth conditions affecting fish community in a shallow lake as result of local…”
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Gonadotropin-releasing hormone (GnRH): from fish to mammalian brains by Somoza, Gustavo M, Miranda, Leandro A, Strobl-Mazzulla, Pablo, Guilgur, Leonardo Gastón

“…This work deals with a family of neuropeptides, gonadotropin-releasing hormone (GnRH), that play a key role in the development and maintenance of reproductive…”
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Effects of estradiol and ethinylestradiol on sperm quality, fertilization, and embryo–larval survival of pejerrey fish (Odontesthes bonariensis) by Gárriz, Ángela, Menéndez-Helman, Renata J., Miranda, Leandro A.

“…•Estrogenic compounds are present in surface waters as a consequence of sewage discharges.•Mixtures of E2 and EE2 affected pejerrey sperm motility and…”
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Sex reversal of pejerrey (Odontesthes bonariensis), a species with temperature‐dependent sex determination, in a seminatural environment by Fresno, Pamela S., Garcia de Souza, Javier R., Colautti, Darío C., Yamamoto, Yoji, Yokota, Masashi, Strüssmann, Carlos A., Miranda, Leandro A.

“…This study examined the changes in sex ratios and sex reversal rates in pejerrey Odontesthes bonariensis that occur with the progression of the spawning season…”
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