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Effects of skeletal deformities on swimming performance and recovery from exhaustive exercise in triploid Atlantic salmon

Citation

Powell, MD and Jones, M and Lijalad, M, Effects of skeletal deformities on swimming performance and recovery from exhaustive exercise in triploid Atlantic salmon , Diseases of Aquatic Organisms, 85, (1) pp. 59-66. ISSN 0177-5103 (2009) [Refereed Article]

DOI: doi:10.3354/dao02056

Abstract

ABSTRACT: The occurrence of spinal deformity in aquaculture can be considerable, and a high rate of deformity has been suggested in triploid smolts in Tasmania. However, the physiological performance of fish with skeletal deformities has not been addressed. The swimming performance and oxygen consumption of triploid Atlantic salmon smolts with either a vertebral fusion (platyspondyly) or multifocal scoliosis were compared to normal (non-deformed) triploid smolts. Fish with vertebral fusion attained swim speeds similar to normal fish, whereas scoliotic fish were unable to attain comparable swim speeds. Routine and maximum oxygen consumption was higher for deformed fish compared with normal fish, translating into apparent increased routine metabolic scope in vertebral fusion fish, and equivocal scope in scoliotic fish compared with normal controls. Deformed fish developed a lower excess post-exercise oxygen consumption compared to non-deformed fish, suggesting they are either incapable of sustained anaerobic activity or possess an increased recovery capacity. These data suggest that skeletal deformity has differential effects on swimming performance depending upon the type of deformity but imposes a significant metabolic cost on salmon smolts.

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:Aquaculture Fin Fish (excl. Tuna)
Author:Powell, MD (Dr Mark Powell)
Author:Jones, M (Mr Matthew Jones)
Author:Lijalad, M (Ms Maite Lijalad)
ID Code:61791
Year Published:2009
Web of Science® Times Cited:19
Deposited By:NC Marine Conservation and Resource Sustainability
Deposited On:2010-03-05
Last Modified:2011-10-03
Downloads:0

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