Document Detail

Physiology and behaviour of Atlantic salmon (Salmo salar) smolts during commercial land and sea transport.
MedLine Citation:
PMID:  18955074     Owner:  NLM     Status:  MEDLINE    
This study examined the physiology (plasma cortisol, glucose, lactate, potassium, sodium and chloride concentrations) and behaviour (underwater video footage) of commercially produced Atlantic salmon (Salmo salar) smolts during transport from freshwater farms to saltwater net pens. Smolts were transported by truck in closed tanks from two freshwater farms to the dock (30-60 min), and then in the flow-through cargo holds of a live-haul vessel, the Sterling Carrier, to the saltwater net pens (~2 h). Some fish were dockside in the vessel for up to 8 h while successive deliveries were loaded into the holds. Fish and water were sampled both before and after truck transport, and then at several time points aboard the vessel. Analysis of plasma constituents showed modest primary and secondary stress responses due to loading and truck transport, and the recovery that occurred dockside in the live-haul vessel was maintained when the vessel was underway. Underwater video footage revealed behavioural differences between fish from the two freshwater facilities that were not evident from the physiological measurements, but the behaviours observed during transport on a live-haul vessel were consistent with a non-stressful environment. Although smolts were subjected to moderately stressful conditions during loading and trucking, they began to recover rapidly aboard the Sterling Carrier. We therefore conclude that smolt transport, as currently conducted by our industry partner, appears to reflect good fish welfare.
M Nomura; K A Sloman; M A G von Keyserlingk; A P Farrell
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-10-17
Journal Detail:
Title:  Physiology & behavior     Volume:  96     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-19     Completed Date:  2009-04-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  233-43     Citation Subset:  IM    
Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, Canada V6T 1Z4.
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MeSH Terms
Analysis of Variance
Behavior, Animal / physiology*
Blood Glucose
Fresh Water
Lactic Acid / blood
Oceans and Seas
Salmo salar / blood,  physiology*
Stress, Psychological / blood,  physiopathology*
Reg. No./Substance:
0/Blood Glucose; 50-21-5/Lactic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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