A carregar...
Publicação
Sex differences in resource utilization by the peacock blenny
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 156.12 KB | Adobe PDF |
Orientador(es)
Resumo(s)
This paper presents data on the seasonal variation of gonadosomatic, hepatosomatic and
feeding indices in nesting males, females and female-like males of the blenniid fish Salaria pavo.
Eviscerated condition factors, female fecundity and feeding rates are also presented. The results
are consistent with the hypothesis that females maximize their feeding rates during reproduction,
converting food into eggs through repeated spawning. Nesting males feed at a very low
rate during the breeding season. It is argued that one major component of the reproductive
costs in these males is the reduction of feeding opportunities. Female-like males present lower
reproductive costs, which probably reflects the compromise between fertilizing some eggs and
growing.
Descrição
Palavras-chave
Salaria pavo Blenniidae Reproductive costs Parental care Body condition Alternative reproductive tactics
Contexto Educativo
Citação
Journal of Fish Biology, 51, 624-633