Bioenergetic modelling of the marine phase of Atlantic salmon (Salmo salar L.) |
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| Authors: | I Philip Smith Douglas J Booker Neil C Wells |
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| Institution: | aUniversity Marine Biological Station, Millport, Isle of Cumbrae, KA28 0EG, United Kingdom;bCentre for Ecology and Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, United Kingdom;cSchool of Ocean and Earth Science, University of Southampton, National Oceanography Centre, European Way, Southampton, SO14 3ZH, United Kingdom |
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| Abstract: | A bioenergetic model of marine phase, wild Atlantic salmon was constructed to investigate the potential effects on post-smolt growth of predicted changes in oceanic conditions. Short-term estimates of growth in weight were similar to measurements in captivity and simulated growth varied with water temperature and swimming speed as expected. Longer-term estimates of growth in length were less than that achieved by wild salmon, particularly with constant swimming assumed. The model was sensitive to parameters relating to maximum daily food consumption, respiration and the relationships between body energy content, length and weight. Some of the sensitive parameters were based on substantive information on Atlantic salmon and their realistic ranges are likely to be much narrower than those tested. However, other parameter values were based on scant data, farmed Atlantic salmon or other salmonid species, and are therefore less certain and indicate where future empirical research should be focussed. |
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| Keywords: | Atlantic salmon Post-smolt Marine phase Growth Temperature Climate change Marine ecology Mathematical models |
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