Scottish Marine and Freshwater Science Vol 6 No 12: The demography of a phenotypically mixed Atlantic salmon (Salmo salar) population as discerned for an eastern Scottish river
This report investigates the potential for assessment of fish populations at a sub-river
scale. A sophisticated mathematical model was used to separate salmon from a
single river (North Esk, eastern Scotland) into three sub-stocks, based on the
number
Acknowledgements
The efforts of all the staff from Marine Science Scotland's Freshwater Fisheries Laboratory at Montrose, who gathered and curated the extensive data used in this study over several decades, are gratefully acknowledged. The following individuals provided helpful discussions: Marshall Halliday for extended conversations about the North Esk's salmon fisheries; Stuart Middlemas for persistent constructive criticism and discussion of an earlier version of the model; and Gordon Smith and John Armstrong for suggestions that improved the text. Two anonymous referee from Canadian Journal of Fisheries and Aquatic Sciences provided thoughtful and detailed suggestions which improved the clarity of an original manuscript, and we particularly thank the referee who drew our attention to McGurk (1996), thereby allowing us to strengthen our treatment of the marine-mortality aspects.
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