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Ecological modulation of reproductive behaviour in the peacock blenny: a mini-review

Saraiva, J. L. ; Gonçalves, D. ; Oliveira, R. F.

Fish physiology and biochemistry, 2013-02, Vol.39 (1), p.85-89 [Periódico revisado por pares]

Dordrecht: Springer Netherlands

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Título:
Ecological modulation of reproductive behaviour in the peacock blenny: a mini-review
Autor: Saraiva, J. L. ; Gonçalves, D. ; Oliveira, R. F.
Assuntos: Androgens ; Animal Anatomy ; Animal Biochemistry ; Animal Physiology ; Animal reproduction ; Animals ; Biomedical and Life Sciences ; Ecosystem ; Female ; Females ; Freshwater & Marine Ecology ; Histology ; Italy ; Life Sciences ; Male ; Males ; Models, Biological ; Morphology ; Perciformes - metabolism ; Perciformes - physiology ; Portugal ; Reproduction - physiology ; Salaria pavo ; Sex roles ; Sexual Behavior, Animal - physiology ; Testosterone - analogs & derivatives ; Testosterone - metabolism ; Zoology
É parte de: Fish physiology and biochemistry, 2013-02, Vol.39 (1), p.85-89
Notas: ObjectType-Article-2
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Descrição: The inter-populational variation in the reproductive behaviour of the peacock blenny Salaria pavo (Risso 1810), particularly the influence of the ecologic environment, was reviewed in the present work. Two populations of this species inhabiting contrasting environments were studied: the Ria Formosa population, a coastal lagoon with sandy/muddy substrate located in the south of Portugal, and the Gulf of Trieste, an area presenting rocky substrate located in the northern Adriatic sea. The remarkable differences in the mating system and reproductive behaviour between the two populations (namely sex-role reversal and high frequency of alternative reproductive tactics (ARTs) at the Ria Formosa vs typical sex roles and low frequency of ARTs at the Gulf of Trieste) are interpreted as a plastic behavioural and physiological response to contrasting ecological conditions. Androgens, namely 11-ketotestosterone, seem to act as mediators of this response. The expression and activity of the enzyme aromatase in the brain also seems to play a key role in fine-tuning the behavioural output in all male morphs as well as females.
Editor: Dordrecht: Springer Netherlands
Idioma: Inglês

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Ecological modulation of reproductive behaviour in the peacock blenny: a mini-review

Saraiva, J. L. ; Gonçalves, D. ; Oliveira, R. F.

Dordrecht: Springer Netherlands

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