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Comparative life histories of fishes in the subgenus Limia
June 16, 2015
1:05 pm
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Matt
Málaga, Spain
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Journal of Fish Biology - early view

Abstract

This study presents life-history descriptions for 12 species in the subgenus Limia, which are endemic to the Greater Antilles. All species in this study lack evidence of superfoetation, producing a single brood of offspring before developing subsequent broods. Interbrood intervals (number of days between parturition events) are also consistent with intervals of species that lack superfoetation. Maternal provisioning, characterized by matrotrophy index, is <1.0 for all species of Limia. This is consistent with species that provide little or no maternal provisioning to developing embryos after ovum fertilization (lecithotrophic). Four species exhibit potentially bi-modal size distributions of mature males. Work on other poeciliids suggests that such bimodal distributions can be caused by genetic polymorphisms in some species. Principle component analyses revealed an axis of interspecific variation in life histories that separated species with small size at maturity and the production of many, small offspring from those with large size at maturity and that produce few, large offspring. This pattern of life-history diversity occurs in many other groups of organisms.

Cake or death?
June 17, 2015
5:23 pm
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plesner
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If/when this becomes available, I'd love to read it.

plesner

June 18, 2015
12:37 pm
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Matt
Málaga, Spain
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Will send it over now, Karsten.

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