Life-history patterns of Cuban poeciliid fishes (Teleostei: Cyprinodontiformes).
Zoo Biol
; 32(3): 251-6, 2013.
Article
em En
| MEDLINE
| ID: mdl-22610913
The following work provides basic information about the life history of 10 Cuban species of the family Poeciliidae. Adult fish stocks were captured in their natural habitat, and litters obtained from them were raised and maintained in captivity for 19 weeks. For each species, we present the mean value of newborn length (TLo ), age at sexual maturity (AM), total length at sexual maturity (TLM), as well as the patterns of postnatal growth in aquarium conditions, which were described using size-age curves and nonlinear regression equations (Richards model). There are differences in growth dynamics among species. In general, growth rates differ for both sexes in all poeciliids studied, males maturing earlier than females, who reach higher values of total length at the 19th week (TLf ). Sexual size dimorphism could be explained by the specific roles of each sex (fecundity in females and early maturity in males) while differences in growth among species could be related to their distribution patterns in the wild. The data summarized in this contribution can be useful for the conservation of these fish species.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Maturidade Sexual
/
Poecilia
/
Tamanho Corporal
/
Animais de Zoológico
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Animals
País/Região como assunto:
Caribe
/
Cuba
Idioma:
En
Revista:
Zoo Biol
Assunto da revista:
BIOLOGIA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Cuba
País de publicação:
Estados Unidos