Journal article
A global assessment of freshwater fish introductions in mediterranean-climate regions
Hydrobiologia, Vol.719(1), pp.317-329
2013
Abstract
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.
Details
- Title
- A global assessment of freshwater fish introductions in mediterranean-climate regions
- Authors/Creators
- S.M. Marr (Author/Creator) - University of Cape TownJ.D. Olden (Author/Creator) - University of WashingtonF. Leprieur (Author/Creator) - IfremerI. Arismendi (Author/Creator) - Oregon State UniversityM. Ćaleta (Author/Creator) - University of ZagrebD.L. Morgan (Author/Creator) - Murdoch UniversityA. Nocita (Author/Creator) - University of FlorenceR. Šanda (Author/Creator) - National MuseumA. Serhan Tarkan (Author/Creator)E. García-Berthou (Author/Creator) - Universitat de Girona
- Publication Details
- Hydrobiologia, Vol.719(1), pp.317-329
- Publisher
- Kluwer Academic Publishers
- Identifiers
- 991005544297807891
- Copyright
- © 2013 Springer Science+Business Media Dordrecht.
- Murdoch Affiliation
- School of Veterinary and Life Sciences; Freshwater Fish Group and Fish Health Unit
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.62 Freshwater Fish Ecology
- Web Of Science research areas
- Marine & Freshwater Biology
- ESI research areas
- Plant & Animal Science