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Human impacts on global freshwater fish biodiversity

Abstract : Freshwater fish represent one-fourth of the world’s vertebrates and provide irreplaceable goods and services but are increasingly affected by human activities. A new index, Cumulative Change in Biodiversity Facets, revealed marked changes in biodiversity in >50% of the world’s rivers covering >40% of the world’s continental surface and >37% of the world’s river length, whereas <14% of the world’s surface and river length remain least impacted. Present-day rivers are more similar to each other and have more fish species with more diverse morphologies and longer evolutionary legacies. In temperate rivers, where the impact has been greatest, biodiversity changes were primarily due to river fragmentation and introduction of non-native species.
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https://hal.inrae.fr/hal-03321441
Contributor : Raymond Schiano Connect in order to contact the contributor
Submitted on : Tuesday, August 17, 2021 - 4:41:58 PM
Last modification on : Monday, October 25, 2021 - 11:36:07 AM

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Guohuan Su, Maxime Logez, Jun Xu, Shengli Tao, Sébastien Villéger, et al.. Human impacts on global freshwater fish biodiversity. Science, American Association for the Advancement of Science, 2021, 371 (6531), pp.835-838. ⟨10.1126/science.abd3369⟩. ⟨hal-03321441⟩

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