Seasonal changes in gonad maturity, proximate and fatty acid composition of Limbaugh's damselfish, chromis limbaughi greenfield & woods, 1980 (pisces: Pomacentridae)

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Resumen

Limbaugh's damselfish, Chromis limbaughi Greenfield & Woods, 1980, is endemic to the Gulf of California, and one of the five most exploited species for the aquarium trade in this region. C. limbaughi is a gonochoristic, gregarious and territorial species without sexual dimorphism that inhabits rocky, sheltered areas. Development of captive breeding techniques for this species would not only ensure a continued supply of fish for the commercial trade, but perhaps more importantly, it would also alleviate fishing pressure and support stock enhancement. Thus, as a first step towards achieving these goals, in this work, we investigated some aspects of the reproductive biology of C. limbaughi. Seasonal fish samplings, with a total of eighty-nine fish caught in one year, were carried out at San Esteban Island, Gulf of California, Mexico. The reproductive season of C. limbaughi extends, at least, from May to September. A new maximum standard length of 10.5 cm is reported for this species. The estimated size at first sexual maturity was 7.90 cm for males and 7.59 cm for females. For both male and female gonads, the major constituent fatty acids were palmitic acid, stearic acid, oleic acid, docosahexaenoic acid, eicosapentaenoic acid and arachidonic acid. The water-quality conditions under which maturation of C. limbaughi took place were measured, and should prove useful for the management of broodstock in captivity.

Idioma originalInglés
Número de artículo058G
PublicaciónArchives of Biological Sciences
Volumen71
N.º4
DOI
EstadoPublicada - 1 ene. 2019

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© 2019 by the Serbian Biological Society.

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