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Parental contribution to progeny during experimental spawning of jungle perch, Kuhlia rupestris

Hoskin, M. L. and Hutchison, M. J. and Barnes, A. C. and Ovenden, J. R. and Pope, L. C. (2015) Parental contribution to progeny during experimental spawning of jungle perch, Kuhlia rupestris. Marine and Freshwater Research, 66 (4). p. 375. ISSN 1323-1650

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Article Link(s): http://dx.doi.org/10.1071/mf13313

Abstract

When releasing captive-bred animals into wild populations, it is essential to maintain the capacity for adaptation and resilience by minimising the effect on population genetic diversity. Populations of the jungle perch (Kuhlia rupestris) have become reduced or locally extinct along the Queensland coast; thus, captive breeding of K. rupestris for restocking is presently underway. Currently, multiple individuals are placed in a tank to produce larvae, yet the number of adults contributing to larval production is unknown. We performed a power analysis on pre-existing microsatellite loci to determine the minimum number of loci and larvae required to achieve accurate assignment of parentage. These loci were then used to determine the number of contributing participants during a series of four spawning events through the summer breeding season in 2012-2013. Not all fish contributed to larval production and no relationship was found between male body size and parentage success. In most cases, there was a high skew of offspring to one mating pair (62% was the average contribution of the most successful pair per tank). This has significant implications for the aquaculture, restocking and conservation of K. rupestris.

Item Type:Article
Business groups:Animal Science
Keywords:conservation fish genetics restoration Effective population-size Pelagic larval duration Genetic diversity Wild Restocking Fitness Program Salmon
Subjects:Science > Botany > Genetics
Animal culture > Breeding and breeds
Aquaculture and Fisheries > Aquaculture
Aquaculture and Fisheries > Fisheries > Fishery research
Deposited On:09 Jun 2016 03:59
Last Modified:09 Jun 2016 03:59

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