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Temperature effects on performance of large Atlantic salmon (Salmo salar) held in seawater recirculation aquaculture systems


Carter, CG and Nuez-Ortin, WG and Codabaccus, BM and Gruenwald, M and Adams, LD and Adams, MB and Hilder, PI, Temperature effects on performance of large Atlantic salmon (Salmo salar) held in seawater recirculation aquaculture systems, Asia-Pacific Aquaculture 2017, 24-27 July, Kuala Lumpur, Malaysia, pp. 59. (2017) [Conference Extract]

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Climate change and increasing environmental variability mean that Atlantic salmon are increasingly exposed to sub-optimum environmental conditions throughout the global range of their aquaculture. Recirculation aquaculture systems (RAS) is a technology with potential to remove both environmental extremes and variability for some, or all, of the production cycle. The development of commercial seawater RAS is underway but still requires research to improve the technology. In addition, RAS provides an important facility to understand the impact of sub-optimum environmental variables and their interaction with nutrition variables. The use of RAS as an experimental facility is applicable to tropical and temperature aquaculture research. Experiments aimed to examine the effects of elevated temperature on aspects of feeding and nutrition of seawater pre-harvest Atlantic salmon of 1 to 4 kg in weight. For all experiments, Atlantic salmon grown on site for at least 6 months were distributed amongst 12 recirculation aquaculture systems each consisting of a 2500 L circular tank and associated recirculation and environmental control systems. A reference seawater temperature of 15C was used. Feed intake was calculated each day and fish were measured for wet weight, fork length and external condition. The effect of elevated temperature on the growth performance, protein metabolism, lipid utilization, fatty acid composition and pigmentation of large seawater Atlantic salmon held in RAS technology will be presented and discussed.

Item Details

Item Type:Conference Extract
Keywords:salmon, aquaculture, elevated temperature, RAS
Research Division:Agricultural, Veterinary and Food 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
UTAS Author:Carter, CG (Professor Chris Carter)
UTAS Author:Nuez-Ortin, WG (Mr Waldo Nuez Ortin)
UTAS Author:Codabaccus, BM (Dr Basseer Codabaccus)
UTAS Author:Adams, LD (Miss Lisa Adams)
UTAS Author:Adams, MB (Dr Mark Adams)
UTAS Author:Hilder, PI (Mrs Polly Hilder)
ID Code:119422
Year Published:2017
Deposited By:Fisheries and Aquaculture
Deposited On:2017-08-01
Last Modified:2017-08-02
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