2026-04-17T08:11:55Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/129952024-06-18T11:07:17Zcom_2072_452955com_2072_2054col_2072_452959col_2072_453080

A global assessment of freshwater fish introductions in mediterranean-climate regions Marr, Sean M. Olden, Julian D. Leprieur, Fabien Arismendi, Ivan Ćaleta, Marko Morgan, David L. Nocita, Annamaria Šanda, Radek Serhan Tarkan, A. García-Berthou, Emili Ministerio de Ciencia e Innovación (Espanya) Espècies introduïdes Introduced organisms Biogeografia Biogeography Peixos d'aigua dolça Freshwater fishes Mediterranean-climate regions (med-regions) are global hotspots of endemism facing mounting environmental threats associated with human-related activities, including the ecological impacts associated with non-native species introductions. We review freshwater fish introductions across med-regions to evaluate the influences of non-native fishes on the biogeography of taxonomic and functional diversity. Our synthesis revealed that 136 freshwater fish species (26 families, 13 orders) have been introduced into med-regions globally. These introductions, and local extirpations, have increased taxonomic and functional faunal similarity among regions by an average of 7.5% (4.6-11.4%; Jaccard) and 7.2% (1.4-14.0%; Bray-Curtis), respectively. Faunal homogenisation was highest in Chile and the western Med Basin, whereas sw Cape and the Aegean Sea drainages showed slight differentiation (decrease in faunal similarity) over time. At present, fish faunas of different med-regions have widespread species in common (e.g. Gambusia holbrooki, Cyprinus carpio, Oncorhynchus mykiss, Carassius auratus, and Micropterus salmoides) which are typically large-bodied, non-migratory, have higher physiological tolerance, and display fast population growth rates. Our findings suggest that intentional and accidental introductions of freshwater fish have dissolved dispersal barriers and significantly changed the present-day biogeography of med-regions across the globe. Conservation challenges in med-regions include understanding the ecosystem consequences of non-native species introductions at macro-ecological scales EGB acknowledges funding support from the Spanish Ministry of Science (projects CGL2009-12877-C02-01 and Consolider-Ingenio 2010 CSD2009-00065 2013-11 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/10256/12995 http://hdl.handle.net/10256/12995 eng info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-013-1486-9 info:eu-repo/semantics/altIdentifier/issn/0018-8158 info:eu-repo/semantics/altIdentifier/eissn/1573-5117 MICINN/PN 2010-2012/CGL2009-12877-C02-01 info:eu-repo/grantAgreement/MICINN//CSD2009-00065/ES/Evaluación y predicción de los efectos del cambio global en la cantidad y la calidad del agua en ríos ibéricos/ Tots els drets reservats info:eu-repo/semantics/openAccess application/pdf Springer Verlag © Hydrobiologia, 2013, vol. 719, núm. 1, p. 317-329 Articles publicats (D-CCAA)