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      Non-native fish in aquaculture and sport fishing in Brazil: economic benefits versus risks to fish diversity in the upper River Paraná Basin

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      Reviews in Fish Biology and Fisheries

      Springer Nature

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          An Experimental Test of the Effects of Predation Risk on Habitat Use in Fish

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            Current knowledge on non-native freshwater fish introductions

             J. Britton,  G Copp,  I. Cowx (2010)
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              Fish and aquatic habitat conservation in South America: a continental overview with emphasis on neotropical systems.

              Fish conservation in South America is a pressing issue. The biodiversity of fishes, just as with all other groups of plants and animals, is far from fully known. Continuing habitat loss may result in biodiversity losses before full species diversity is known. In this review, the main river basins of South America (Magdalena, Orinoco, Amazon and Paraná-La Plata system), together with key aquatic habitats (mangrove-fringed estuaries of the tropical humid, tropical semi-arid and subtropical regions) are analysed in terms of their characteristics and main concerns. Habitat loss was the main concern identified for all South American ecosystems. It may be caused by damming of rivers, deforestation, water pollution, mining, poor agricultural practice or inadequate management practice. Habitat loss has a direct consequence, which is a decrease in the availability of living resources, a serious social and economic issue, especially for South American nations which are all developing countries. The introduction of exotic species and overfishing were also identified as widespread across the continent and its main freshwater, coastal and marine ecosystems. Finally, suggestions are made to find ways to overcome these problems. The main suggestion is a change of paradigm and a new design for conservation actions, starting with integrated research and aiming at the co-ordinated and harmonized management of the main transboundary waters of the continent. The actions would be focused on habitat conservation and social rescue of the less well-off populations of indigenous and non-indigenous peoples. Energy and freshwater demands will also have to be rescaled in order to control habitat loss.
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                Author and article information

                Journal
                Reviews in Fish Biology and Fisheries
                Rev Fish Biol Fisheries
                Springer Nature
                0960-3166
                1573-5184
                September 2012
                February 7 2012
                : 22
                : 3
                : 555-565
                Article
                10.1007/s11160-012-9254-x
                © 2012
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