Life-History Patterns of Cuban Poeciliid Fishes (Teleostei: Cyprinodontiformes)

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 val...

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Bibliographic Details
Published in:Zoo biology 2013-05, Vol.32 (3), p.251-256
Main Authors: Ponce de Leon, Jose L, Rodriguez, Rodet, Leon, Gunnary
Format: Article
Language:English
Subjects:
Animals
Animals, Zoo
Body Size - physiology
Conservation of Natural Resources - methods
Cuba
Cyprinodontiformes
fecundity
Female
Freshwater
Growth Charts
Male
Poecilia - growth & development
Poeciliidae
Regression Analysis
Richards equation
Sexual Maturation - physiology
sexual maturity
size-age curves
Species Specificity
Statistics, Nonparametric
Teleostei
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Summary: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. Zoo Biol 32:251–256, 2013. © 2012 Wiley Periodicals, Inc.
ISSN:0733-3188
1098-2361
DOI:10.1002/zoo.21009