New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna
South American galaxiids occupy both Patagonia and the ichthyogeographic Chilean Province, encompassing glacial Andean deep lakes, shallow plateau lakes, reservoirs, short Pacific rivers and long Atlantic rivers. The total fish fauna includes 29 species, comprising Neotropical fishes (siluriforms an...
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MDPI AG
2020-05-01
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| Online Access: | https://www.mdpi.com/1424-2818/12/5/178 |
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| author | Víctor Enrique Cussac María Eugenia Barrantes Claudia Clementina Boy Konrad Górski Evelyn Habit María Eugenia Lattuca Javier Hernán Rojo |
| author_facet | Víctor Enrique Cussac María Eugenia Barrantes Claudia Clementina Boy Konrad Górski Evelyn Habit María Eugenia Lattuca Javier Hernán Rojo |
| author_sort | Víctor Enrique Cussac |
| collection | DOAJ |
| description | South American galaxiids occupy both Patagonia and the ichthyogeographic Chilean Province, encompassing glacial Andean deep lakes, shallow plateau lakes, reservoirs, short Pacific rivers and long Atlantic rivers. The total fish fauna includes 29 species, comprising Neotropical fishes (siluriforms and characids), galaxiids, percichthyids, atherinopsids and mugilids, two lamprey species, and several exotic fishes (salmonids, <i>Gambusia</i> spp. and common carp). The family Galaxiidae shares a common ancestry with the Gondwanan temperate fish fauna, played a major role in the post-glacial colonization of Andean lakes and streams, and contributes key species to the food webs. Galaxiid species occupy an enormous latitudinal gradient, show a wide variety of life history patterns and are the southernmost native freshwater fishes of the world. Knowledge of South American galaxiids has improved notably, but new challenges arise due to climate change, biological invasions, damming, aquaculture and contamination. In this changing environment, the future of South American galaxiids should be carefully considered as a legacy of the old Gondwana and a unique attribute of the freshwaters of southern South America. |
| first_indexed | 2024-03-10T20:02:17Z |
| format | Article |
| id | doaj.art-4af6154230384e69b298b4052fc1c2aa |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-10T20:02:17Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diversity |
| spelling | doaj.art-4af6154230384e69b298b4052fc1c2aa2023-11-19T23:28:27ZengMDPI AGDiversity1424-28182020-05-0112517810.3390/d12050178New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique FaunaVíctor Enrique Cussac0María Eugenia Barrantes1Claudia Clementina Boy2Konrad Górski3Evelyn Habit4María Eugenia Lattuca5Javier Hernán Rojo6Instituto Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), Universidad Nacional del Comahue—CONICET, Bariloche 8400, ArgentinaCentro Austral de Investigaciones Científicas (CADIC)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ushuaia 9410, ArgentinaCentro Austral de Investigaciones Científicas (CADIC)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ushuaia 9410, ArgentinaInstituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, ChileDepartamento de Sistemas Acuáticos, Facultad de Ciencias Ambientales y Centro EULA-CHILE, Universidad de Concepción, Concepción 4030000, ChileCentro Austral de Investigaciones Científicas (CADIC)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ushuaia 9410, ArgentinaCentro Austral de Investigaciones Científicas (CADIC)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ushuaia 9410, ArgentinaSouth American galaxiids occupy both Patagonia and the ichthyogeographic Chilean Province, encompassing glacial Andean deep lakes, shallow plateau lakes, reservoirs, short Pacific rivers and long Atlantic rivers. The total fish fauna includes 29 species, comprising Neotropical fishes (siluriforms and characids), galaxiids, percichthyids, atherinopsids and mugilids, two lamprey species, and several exotic fishes (salmonids, <i>Gambusia</i> spp. and common carp). The family Galaxiidae shares a common ancestry with the Gondwanan temperate fish fauna, played a major role in the post-glacial colonization of Andean lakes and streams, and contributes key species to the food webs. Galaxiid species occupy an enormous latitudinal gradient, show a wide variety of life history patterns and are the southernmost native freshwater fishes of the world. Knowledge of South American galaxiids has improved notably, but new challenges arise due to climate change, biological invasions, damming, aquaculture and contamination. In this changing environment, the future of South American galaxiids should be carefully considered as a legacy of the old Gondwana and a unique attribute of the freshwaters of southern South America.https://www.mdpi.com/1424-2818/12/5/178<i>Aplochiton</i>BrachygalaxiasGalaxiaslife historySouth Americatemperature |
| spellingShingle | Víctor Enrique Cussac María Eugenia Barrantes Claudia Clementina Boy Konrad Górski Evelyn Habit María Eugenia Lattuca Javier Hernán Rojo New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna Diversity <i>Aplochiton</i> Brachygalaxias Galaxias life history South America temperature |
| title | New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna |
| title_full | New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna |
| title_fullStr | New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna |
| title_full_unstemmed | New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna |
| title_short | New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna |
| title_sort | new insights into the distribution physiology and life histories of south american galaxiid fishes and potential threats to this unique fauna |
| topic | <i>Aplochiton</i> Brachygalaxias Galaxias life history South America temperature |
| url | https://www.mdpi.com/1424-2818/12/5/178 |
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