کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1061123 947658 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Economic tradeoffs in the Gulf of Maine ecosystem: Herring and whale-watching
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Economic tradeoffs in the Gulf of Maine ecosystem: Herring and whale-watching
چکیده انگلیسی

This research attempts to quantify some of the effects of localized depletion of herring by examining the search times of commercial whale-watching vessels. Whale-watching vessels are indirect users of herring; whales feed on herring and may disperse when prey availability is low. A dataset of daily whale-watching outcomes is combined with fishing effort and oceanographic data to test the hypothesis that intensive fishing effort increases the search time of whale-watching companies. Our results suggest that fishing may have a detrimental impact on search time; however, the magnitude of this effect is fairly small. We find policy that the recently enacted policy which prohibits fishing for herring in whale-watching areas would decrease search times by a small amount. We find some evidence of a localized aggregation effect; search times are the lowest when herring are spawning in the inshore areas. These results should be of interest to policymakers in determining future fishing regulations in an ecosystem-based fisheries management context.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Policy - Volume 34, Issue 1, January 2010, Pages 156–162
نویسندگان
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