Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/20996
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The interrelation of growth and disease resistance of different populations of juvenile Atlantic halibut (Hippoglossus hippoglossus L.)
Authors: Imsland, Albert K
Jonassen, Thor M
Langston, Anne
Hoare, Rowena
Wergeland, Heidrun
Fitzgerald, Richard D
Mulcahy, Maire
Stefansson, Sigurd O
Contact Email: rowena.hoare1@stir.ac.uk
Keywords: Growth
Disease resistance
Vibrio
Hippoglossus hippoglossus
Halibut
Issue Date: Jan-2002
Publisher: Elsevier
Citation: Imsland AK, Jonassen TM, Langston A, Hoare R, Wergeland H, Fitzgerald RD, Mulcahy M & Stefansson SO (2002) The interrelation of growth and disease resistance of different populations of juvenile Atlantic halibut (Hippoglossus hippoglossus L.), Aquaculture, 204 (1-2), pp. 167-177.
Abstract: Growth of juvenile Atlantic halibut from three areas of the North Atlantic (Canada, Iceland and Norway) was studied in an experiment using individual tagged fish reared at 15°C for 85 days. Fish from each population were subsequently split into two groups and acclimatised to either 12°C or 18°C. The fish were then injected intra-peritoneally with a Vibrio anguillarum bacteria suspension and mortality monitored for 4 weeks. Growth rates of the Canadian population ranked lowest, whereas the Norwegian population had the highest mean growth rates (SGR=1.70% day-1, 1.62% day-1 and 1.53% day-1 for the Norwegian, Icelandic and Canadian populations, respectively). The halibut from Norway had the best survival following bacterial challenge (80%, 50% and 55% survival for the Norwegian, Icelandic and Canadian populations, respectively). Mortality was higher at 18°C than at 12°C in the Icelandic (62% at 12°C and 27% at 18°C) and Canadian (56% at 12°C and 32% at 18°C) fish, whereas a smaller difference between temperatures was observed in the Norwegian fish (25% at 12°C and 13% at 18°C). Fish that survived the challenge test were those that had grown fastest in the growth trial. Low, but significant, correlations between survival and size and growth were seen, but these correlations varied between populations. In the Canadian population, no correlation between size and growth and survival were seen; only size was correlated (r=0.27) with survival in the Icelandic population, whereas both size (r=0.18) and growth (r=0.17) were correlated with survival in the Norwegian population.
Type: Journal Article
URI: http://hdl.handle.net/1893/20996
DOI Link: http://dx.doi.org/10.1016/S0044-8486(01)00656-1
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Bergen
University of Bergen
National University of Ireland - Galway
Aquaculture
University of Bergen
National University of Ireland - Galway
National University of Ireland - Galway
University of Bergen

Files in This Item:
File Description SizeFormat 
Aquaculture 2002.pdf208.68 kBAdobe PDFUnder Embargo until 31/12/2999     Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependant on the depositor still being contactable at their original email address.

This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.