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The use of additional lighting and artificial photoperiods to recondition early maturing Atlantic salmon (Salmo salar) in Tasmania

Citation

Porter, MJR and Woolcott, H and Pankhurst, NW, The use of additional lighting and artificial photoperiods to recondition early maturing Atlantic salmon (Salmo salar) in Tasmania, Fish Physionlogy and Biochemistry, 28, (1-4) pp. 391-393. ISSN 0920-1742 (2003) [Refereed Article]

DOI: doi:10.1023/B:FISH.0000030603.30648.90

Abstract

Salmonid culture in Tasmania experiences high rates of early maturation due to the rapid growth rates achieved under favorable environmental conditions. The present study investigates the use of artificial photoperiod to recondition previously mature Atlantic salmon to provide a larger fish with higher market value. Individual groups of previously mature female Atlantic salmon (Salmo salar) were put under 24 hour artificial light from either May, June, July or maintained under ambient conditions during the austral winter. Fish maintained under lights attained a reversion from dark skin pigmentation, typical of mature individuals, to a silver sea-going coloration more rapidly than the control group. In addition flesh pigmentation, ovarian absorption and body wall thickness was significantly greater than that of the control fish resulting in a higher market price. The study demonstrates that artificial lights can facilitate the reconditioning of previously mature Atlantic salmon under southern hemisphere conditions. © 2004 Kluwer Academic Publishers.

Item Details

Item Type:Refereed Article
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:Fisheries - Aquaculture not elsewhere classified
Author:Porter, MJR (Dr Mark Porter)
Author:Woolcott, H (Ms Hannah Woolcott)
Author:Pankhurst, NW (Professor Ned Pankhurst)
ID Code:35087
Year Published:2003
Web of Science® Times Cited:5
Deposited By:TAFI - Aquaculture
Deposited On:2005-08-02
Last Modified:2010-06-04
Downloads:0

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