The role of ovarian steroids in reproductive plasticity in Hoplias malabaricus (Teleostei: Characiformes: Erythrinidae) in tropical reservoirs with different degrees of pollution

The role of ovarian steroids in reproductive plasticity in Hoplias malabaricus (Teleostei: Characiformes: Erythrinidae) in tropical reservoirs with different degrees of pollution

Highlights • The presence of pollutants modifies the dynamic of oocytes recruitment. • In BIL, earlier vitellogenesis might be due to high 11-KT levels. • The longer reproductive period in BIL females is maintained by higher E2 levels. • Plasticity in the steroidogenic path maintains reproduction at...

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Veröffentlicht in:General and comparative endocrinology 2015-10, Vol.222, p.1-10
Hauptverfasser: Gomes, Aline Dal’Olio, Tolussi, Carlos Eduardo, Ribeiro, Cristiéle da Silva, Honji, Renato Massaaki, Moreira, Renata Guimarães
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Anthropogenic activities
Characiformes
Characiformes - physiology
Endocrinology & Metabolism
Environmental Pollution
Erythrinidae
Fecundity
Female
Fertility
Freshwater
Hoplias malabaricus
Humans
Lipids
Ovary - physiology
Reproduction - physiology
Reproductive tactic
Steroids
Teleostei
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Zusammenfassung:Highlights • The presence of pollutants modifies the dynamic of oocytes recruitment. • In BIL, earlier vitellogenesis might be due to high 11-KT levels. • The longer reproductive period in BIL females is maintained by higher E2 levels. • Plasticity in the steroidogenic path maintains reproduction at polluted sites.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2014.10.008