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Barramundi origins : Determining the contribution of stocking to the barramundi catch on Queensland’s east coast

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Leahy, S. M., Jerry, D. R., Wedding, B. B., Robins, J. B., Wright, C. L., Sadekov, A., Boyle, S., Jones, D. B., Williams, S. M., McCulloch, M. T., Grauf, S., Pavich, L., McLennan, M. F., Sellin, M. J., Goldsbury, J. A. and Saunders, R. J. (2022) Barramundi origins : Determining the contribution of stocking to the barramundi catch on Queensland’s east coast. Project Report. FRDC.

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Abstract

Researchers from Queensland’s Department of Agriculture and Fisheries, James Cook University, and the University of Western Australia tested a range of otolith-based and genetic methods to identify hatchery-born from wild-born Barramundi. The project took place in the Dry Tropics region, where extensive historical and ongoing impoundment stocking (release of hatchery-born Barramundi into freshwater bodies) may be contributing to the downstream wild-capture marine and estuarine fishery. Fish samples were collected from the commercial and recreational wild-capture marine and estuarine fishery in 2019 and 2020, following the major Townsville floods in February 2019. The team identified a cost-effective means of using trace elements in fish otoliths to reliably distinguish hatchery-origin from wild-origin fish, measure the contribution of stocked fish to the wild population, and assess the sustainability of the wild-capture fishery.

Item Type:Monograph (Project Report)
Business groups:Animal Science, Crop and Food Science
Keywords:Final report
Subjects:Aquaculture and Fisheries > Fisheries > Fishery conservation
Aquaculture and Fisheries > Fisheries > Fishery management. Fishery policy
Aquaculture and Fisheries > Fisheries > Fishery research
Aquaculture and Fisheries > Fisheries > Fishery for individual species
Agriculture > By region or country > Australia > Queensland
Live Archive:23 Feb 2022 03:40
Last Modified:23 Feb 2022 03:40

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