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Investigating the larval culture requirements of Southern Bluefin Tuna, Thunnus maccoyii, for aquaculture in Australia

Citation

Cobcroft, JM and Battaglene, SC and Boaventura, M and Chen, B and Deichmann, M and Elizur, A and Fielder, S and Hilder, PI and Hutchinson, W and Knibb, K and Knuckey, R and Miller, A and Qin, J and Schipp, G and Thomson, M and Zohar, Y, Investigating the larval culture requirements of Southern Bluefin Tuna, Thunnus maccoyii, for aquaculture in Australia, Proceedings of the Final Global COE Program International Symposium, 2012, 23-24 November 2012, Kushimoto City, Japan, pp. 43-49. (2012) [Non Refereed Conference Paper]


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Abstract

The closed life-cycle production of Southern bluefin tuna (SBT) (Thunnus maccoyii) is under investigation in Australia, with the first spawning of fertilized eggs from captive broodstock occurring in 2008 at Clean Seas Tuna Ltd (CST), South Australia. Establishment of a sustainable aquaculture industry, not dependent on wild caught juvenile SBT, is the primary goal of CST and the Australian Seafood Cooperative Research Centre (CRC) supported collaborative research projects. Wild-caught broodstock are maintained in a land-based facility at Amo Bay in South Australia, with environmental control and active research to manage reproduction and facilitate annual spawning. Recent larval rearing activity has addressed critical mortality events, including surface mortality in newly hatched larvae, sinking and death on the tank bottom in the live feed stage, cannibalism, weaning, and wall collisions. These are known bottlenecks in the hatchery production of other bluefin tuna species, initially identified through research in Japan (Kumai, 1997; Sawada et al., 2005; Masuma et al., 2011; Ishibashi et al., 2012; Kurata et al., 2012). The SBT research is an internationally collaborative effort, involving four international partners, eight Australian organisations and larval rearing in five hatchery sites from 2008 to 2012. This paper presents a summary of recent research and future directions.

Item Details

Item Type:Non Refereed Conference Paper
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Aquaculture Tuna
Author:Cobcroft, JM (Dr Jennifer Cobcroft)
Author:Battaglene, SC (Associate Professor Stephen Battaglene)
Author:Hilder, PI (Mrs Polly Hilder)
ID Code:82814
Year Published:2012
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2013-02-19
Last Modified:2016-09-29
Downloads:3 View Download Statistics

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