کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4544636 1626863 2007 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Atlantic salmon fisheries in the White and Barents Sea basins: Dynamic of catches in the 17–18th Century and comparison with 19–20th Century data
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Atlantic salmon fisheries in the White and Barents Sea basins: Dynamic of catches in the 17–18th Century and comparison with 19–20th Century data
چکیده انگلیسی

Catches of Atlantic salmon, Salmo salar, recorded in historical documents from the 17–18th Centuries have been analysed in four locations in the basins of the White and Barents Seas. Atlantic salmon was one of the most valuable products of the local economy in the 17–18th Centuries in the northern Russia. Therefore, catches were well recorded in the account books of state departments and monasteries. Salmon were fished mostly in the lower parts of rivers, using weirs which technologically were not changed over the centuries. This makes fishing effort commensurable and allows comparison of historical catch data of the 17–18th Centuries with statistical data available since the last quarter of the 19th Century. Notable fluctuations of catches, average weight and ratio of different seasonal forms of salmon were revealed. Decreasing catches tended to coincide with relatively colder periods. Comparison of historical and statistical data has shown that catches Atlantic salmon and therefore changes in size of their populations were most probably driven by natural factors before middle of the 20th Century.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fisheries Research - Volume 87, Issues 2–3, November 2007, Pages 240–254
نویسندگان
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