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      Documented and Potential Biological Impacts of Recreational Fishing: Insights for Management and Conservation

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      Reviews in Fisheries Science
      Informa UK Limited

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          Fishing down marine food webs

          The mean trophic level of the species groups reported in Food and Agricultural Organization global fisheries statistics declined from 1950 to 1994. This reflects a gradual transition in landings from long-lived, high trophic level, piscivorous bottom fish toward short-lived, low trophic level invertebrates and planktivorous pelagic fish. This effect, also found to be occurring in inland fisheries, is most pronounced in the Northern Hemisphere. Fishing down food webs (that is, at lower trophic levels) leads at first to increasing catches, then to a phase transition associated with stagnating or declining catches. These results indicate that present exploitation patterns are unsustainable.
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            Environmental and Economic Costs of Nonindigenous Species in the United States

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              Understanding the Complexity of Economic, Ecological, and Social Systems

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                Author and article information

                Journal
                Reviews in Fisheries Science
                Reviews in Fisheries Science
                Informa UK Limited
                1064-1262
                1547-6553
                January 18 2007
                January 18 2007
                : 14
                : 4
                : 305-367
                Article
                10.1080/10641260600886455
                69d913c1-d3c5-4ade-9499-41a6e4c7e2ff
                © 2007
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