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J. Mar. Sci. Eng. 2015, 3(2), 329-355;

Sex Control in Fish: Approaches, Challenges and Opportunities for Aquaculture

Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Queensland 4810, Australia
Author to whom correspondence should be addressed.
Academic Editor: Kerstin Johannesson
Received: 20 April 2015 / Accepted: 20 May 2015 / Published: 28 May 2015
(This article belongs to the Special Issue Genetic Breeding Technology and Its Application in Marine Aquaculture)
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At present, aquaculture is the fastest growing sector of animal food production and holds great potential as a sustainable solution for world food security. The ability to control sex is one of the most important factors for the commercialisation and efficient propagation of fish species, due to influences on reproduction, growth and product quality. Accordingly, there is a large body of research that targets sexual development in commercially important species in an attempt to understand and control fish sex and reproductive function. In this review, we provide an introduction to sex determination and differentiation in fish, including the genetic, epigenetic and environmental factors that can influence fish sex ratios. We also summarise the major approaches used to control sex in fish and discuss their application in commercially important species. Specifically, we discuss the use of exogenous steroid hormones, chromosome ploidy, environmental manipulations, sex-linked genetic markers, selection for altered sex ratios, and transgenics and comment on the challenges associated with controlling sex in a commercial environment. View Full-Text
Keywords: sex ratio; reproductive control; triploidy; hormonal manipulation; epigenetics; environment; QTL sex ratio; reproductive control; triploidy; hormonal manipulation; epigenetics; environment; QTL

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Budd, A.M.; Banh, Q.Q.; Domingos, J.A.; Jerry, D.R. Sex Control in Fish: Approaches, Challenges and Opportunities for Aquaculture. J. Mar. Sci. Eng. 2015, 3, 329-355.

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