Hilton, J., Welton, J.S., Clarke, R. T. and Ladle, M., 2001. An Assessment of the Potential for the Application of Two Simple Models to Atlantic Salmon, Salmo Salar, Stock Management in Chalk Rivers. Fisheries Management and Ecology, 8 (3), pp. 189-205.
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Official URL: http://www3.interscience.wiley.com/journal/1190285...
Many salmon populations in the UK are under threat, which is assumed to result from a combination of anthropogenic and natural factors. Positive management is required to bring them back to their former productivity levels. An attempt has been made to use two simple models to assess the suitability of several management approaches for use on chalk rivers. One model is based on the survival rates at each stage of the salmon life cycle and the other estimates the predation of young salmon by other fish. This work highlights the paucity of data available to calibrate even the simplest salmon management models. For those variables where data are available, the variability is very high. Despite the poor quality of input data, the outputs are close to observed numbers in the River Frome, a chalk river in Dorset, UK. The models were used to assess the effect of managing the fishery using reduced rod catches, pike culling, gravel cleaning and trout stocking on adult salmon and smolt numbers.
|Subjects:||Geography and Environmental Studies|
Science > Biology and Botany
|Group:||School of Applied Sciences > Centre for Conservation, Ecology and Environmental Change|
|Deposited By:||INVALID USER|
|Deposited On:||27 Nov 2008 13:12|
|Last Modified:||07 Mar 2013 14:58|
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