August 4, 2009
Fisheries Over-exploitation Declining
A study published in Science magazine examines the state of global fisheries after years of efforts to reduce overfishing:
Abstract: After a long history of overexploitation, increasing efforts to restore marine ecosystems and rebuild fisheries are under way. Here, we analyze current trends from a fisheries and conservation perspective. In 5 of 10 well-studied ecosystems, the average exploitation rate has recently declined and is now at or below the rate predicted to achieve maximum sustainable yield for seven systems. Yet 63% of assessed fish stocks worldwide still require rebuilding, and even lower exploitation rates are needed to reverse the collapse of vulnerable species. Combined fisheries and conservation objectives can be achieved by merging diverse management actions, including catch restrictions, gear modification, and closed areas, depending on local context. Impacts of international fleets and the lack of alternatives to fishing complicate prospects for rebuilding fisheries in many poorer regions, highlighting the need for a global perspective on rebuilding marine resources.
Science 31 July 2009:
Vol. 325. no. 5940, pp. 578 - 585
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Posted by: term paper writing | Aug 14, 2009 9:42:15 PM
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Posted by: Donna M. Byrne | Aug 15, 2009 5:41:26 AM