کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5766155 1627553 2017 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Consumption of particulate wastes derived from cage fish farming by aggregated wild fish. An experimental approach
ترجمه فارسی عنوان
مصرف زباله های ذرات حاصل از کشت ماهی های قفس توسط ماهی های وحشی جمع شده. یک رویکرد تجربی
کلمات کلیدی
آبزی پروری، بیوفیلتراسیون، پرورش ماهی قفس، قابلیت هضم، اثرات زیست محیطی، تسکین دهنده، مصرف زباله، ماهی وحشی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
Particulate wastes derived from cage fish farming are a trophic resource used by wild fish. This study assesses waste consumption by wild fish and the impact on the final balance of wastes. Consumption was determined according to the difference between the particulate matter exiting the cages and that reaching 5 m away at three different depths, in the presence and absence of wild fish. Wild fish around the experimental cages were counted during feeding and non-feeding periods. A weighted abundance of 1057 fish 1000 m−3 consumed 17.75% of the particulate wastes exiting the cages, on average. Consumption was higher below the cages, where waste outflow was greater. However, waste removal by wild fish was noteworthy along the shallow and deep sides of the cages. Wild fish diminished the net particulate wastes by about 14%, transforming them into more easily dispersible and less harmful wastes. This study demonstrates the mitigating potential of wild fish in reducing environmental impact.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 130, September 2017, Pages 166-173
نویسندگان
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