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Natural spawning and intensive culture of pejerrey Odontesthes bonariensis juveniles.
TLDR
The present work summarizes the results of the efforts to control pejerrey reproduction in captivity, for the development of efficient, economically viable and not pollutant techniques for the production of juveniles in an intensive system.
Immunocytochemical identification of GtH1 and GtH2 cells during the temperature-sensitive period for sex determination in pejerrey, Odontesthes bonariensis.
TLDR
Results strongly suggest that GtH1 and GTH2 are related to sex differentiation or TSD in O. bonariensis and are expressed by different cells.
High Water Temperatures Impair the Reproductive Ability of the Pejerrey Fish Odontesthes bonariensis: Effects on the Hypophyseal‐Gonadal Axis
TLDR
The results of this work clearly indicate that short periods of exposure to high water temperatures disrupt pejerrey reproduction, and the gonads of pejerreys appear to be the primary target of high water temperature.
Effects of light and temperature conditions on the expression of GnRH and GtH genes and levels of plasma steroids in Odontesthes bonariensis females
TLDR
It is concluded that the increase in day length but not that of temperature triggers the maturation of pejerrey females after the winter period of gonadal rest and that this occurs by an integrated stimulation of the various components of the brain–pituitary–gonad axis.
Historical aspects, current status and prospects of pejerrey aquaculture in South America
TLDR
In this review, the history of atheriniculture and the biological, technological, scienti¢c, cultural and infrastructural constraints to pejerrey aquaculture development thus far are summarized and possible scenarios of pejerreys aquacculture development compatible with the socio-economic conditions of South American countries are suggested.
Thyrotropin-releasing hormone immunoreactivity in the brain and the pituitary during Bufo arenarum development
TLDR
This study represents the first immunocytochemical demonstration of TRH in Bufo species, and serves as a basis for clarification of the neuroendocrine regulation of metamorphosis.
Brain aromatase from pejerrey fish (Odontesthes bonariensis): cDNA cloning, tissue expression, and immunohistochemical localization.
TLDR
The brain-type aromatase (CYP19A2) cDNA from pejerrey Odontesthes bonariensis was characterized and revealed that CYP19A1 was expressed significantly higher in anterior male brain areas than in the corresponding female areas, and also when compared to posterior brain areas from both sexes.
Effects of global warming on fish reproductive endocrine axis, with special emphasis in pejerrey Odontesthes bonariensis.
TLDR
Evidence is provided that fish reproduction may be directly affected by further global warming and that abnormal high water temperature impairs the expression of important genes throughout the brain-pituitary-gonad axis.
Corticotropin-releasing factor accelerates metamorphosis in Bufo arenarum: effect on pituitary ACTH and TSH cells.
TLDR
Results obtained indicate a possible role for CRF in Bufo arenarum metamorphosis and suggest that CRF may regulate interrenal and thyroid activity by acting directly upon TSH and ACTH cells.
Effects of short periods of warm water fluctuations on reproductive endocrine axis of the pejerrey (Odontesthes bonariensis) spawning.
TLDR
It is demonstrated that pulses of warm water in natural environment during pejerrey spawning season can disrupt all levels of the reproductive axis, impairing reproduction.
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