Ichthyological ecoregions of Argentina
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending latitudinally over about 4,000 km. It possess...
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División Zoología Vertebrados, Museo de La Plata.
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ftoceandocs:oai:aquadocs.org:1834/19453 2023-05-15T13:59:47+02:00 Ichthyological ecoregions of Argentina López, Hugo Luis Morgan, Cecilia C. Montenegro, Marcelo J. 2002 application/pdf 71 http://hdl.handle.net/1834/19453 en eng División Zoología Vertebrados, Museo de La Plata. La Plata, Argentina ProBiota, FCNyM, UNLP, Serie Documentos 1666-731X http://hdl.handle.net/1834/19453 http://aquaticcommons.org/id/eprint/1589 196 2013-05-07 13:01:12 1589 Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata Management Conservation Biology Environment Fishes Argentina monograph 2002 ftoceandocs 2023-04-06T17:01:24Z The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending latitudinally over about 4,000 km. It possesses significant latitudinal and altitudinal variation (33º of latitudinal range, and heights from Bajo de San Julián in Santa Cruz province at 105 m below sea level, up to Mt. Aconcagua, 6,959 m over sea level), as well as two gradients of physical variability, extending in north-south and east-west directions. Owing to these features, the country presents a wide range of climates and soil types, being one of the countries with greatest diversity of biogeographical units (Lean et al., 1990, In: Bertonatti & Corcuera, 2000). There are four main hydrographic systems: Río de la Plata basin, the Atlantic and Pacific drainages, and several endorrheic systems. Within these basins, the ichthyofaunistic assemblage is well represented, with different magnitude in accordance with the different taxonomic groupings and regions considered. From an ichthyogeographic standpoint, and according to the works of Ringuelet (1975) and Arratia et al. (1983), Argentina is included in the Brasilic and Austral Subregions. The first of these is represented by two domains: the Andean Domain, comprising the southernmost portion of Titicaca Province, and the Paranensean Domain, including part of Alto Paraná and Paranoplatensean Provinces. The Austral Subregion is represented in Argentina by the Subandean-Cuyan and Patagonian Provinces. The present survey indicates that there are about 441 fish species in Argentina, distributed throughout the country; this number represents less than 10% of the total fish species occurring in the Neotropical Region. There is a recognizable trend of faunal impoverishment, both in North-South and East-West direction, reaching its maximum expression in the provinces of Tierra del Fuego (situated at approximately ... Book Antarc* Antarctic Tierra del Fuego IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Aconcagua ENVELOPE(-59.650,-59.650,-62.400,-62.400) Antarctic Argentina Argentine Austral Pacific The Antarctic |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Management Conservation Biology Environment Fishes Argentina |
spellingShingle |
Management Conservation Biology Environment Fishes Argentina López, Hugo Luis Morgan, Cecilia C. Montenegro, Marcelo J. Ichthyological ecoregions of Argentina |
topic_facet |
Management Conservation Biology Environment Fishes Argentina |
description |
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending latitudinally over about 4,000 km. It possesses significant latitudinal and altitudinal variation (33º of latitudinal range, and heights from Bajo de San Julián in Santa Cruz province at 105 m below sea level, up to Mt. Aconcagua, 6,959 m over sea level), as well as two gradients of physical variability, extending in north-south and east-west directions. Owing to these features, the country presents a wide range of climates and soil types, being one of the countries with greatest diversity of biogeographical units (Lean et al., 1990, In: Bertonatti & Corcuera, 2000). There are four main hydrographic systems: Río de la Plata basin, the Atlantic and Pacific drainages, and several endorrheic systems. Within these basins, the ichthyofaunistic assemblage is well represented, with different magnitude in accordance with the different taxonomic groupings and regions considered. From an ichthyogeographic standpoint, and according to the works of Ringuelet (1975) and Arratia et al. (1983), Argentina is included in the Brasilic and Austral Subregions. The first of these is represented by two domains: the Andean Domain, comprising the southernmost portion of Titicaca Province, and the Paranensean Domain, including part of Alto Paraná and Paranoplatensean Provinces. The Austral Subregion is represented in Argentina by the Subandean-Cuyan and Patagonian Provinces. The present survey indicates that there are about 441 fish species in Argentina, distributed throughout the country; this number represents less than 10% of the total fish species occurring in the Neotropical Region. There is a recognizable trend of faunal impoverishment, both in North-South and East-West direction, reaching its maximum expression in the provinces of Tierra del Fuego (situated at approximately ... |
format |
Book |
author |
López, Hugo Luis Morgan, Cecilia C. Montenegro, Marcelo J. |
author_facet |
López, Hugo Luis Morgan, Cecilia C. Montenegro, Marcelo J. |
author_sort |
López, Hugo Luis |
title |
Ichthyological ecoregions of Argentina |
title_short |
Ichthyological ecoregions of Argentina |
title_full |
Ichthyological ecoregions of Argentina |
title_fullStr |
Ichthyological ecoregions of Argentina |
title_full_unstemmed |
Ichthyological ecoregions of Argentina |
title_sort |
ichthyological ecoregions of argentina |
publisher |
División Zoología Vertebrados, Museo de La Plata. |
publishDate |
2002 |
url |
http://hdl.handle.net/1834/19453 |
long_lat |
ENVELOPE(-59.650,-59.650,-62.400,-62.400) |
geographic |
Aconcagua Antarctic Argentina Argentine Austral Pacific The Antarctic |
geographic_facet |
Aconcagua Antarctic Argentina Argentine Austral Pacific The Antarctic |
genre |
Antarc* Antarctic Tierra del Fuego |
genre_facet |
Antarc* Antarctic Tierra del Fuego |
op_source |
http://aquaticcommons.org/id/eprint/1589 196 2013-05-07 13:01:12 1589 Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata |
op_relation |
ProBiota, FCNyM, UNLP, Serie Documentos 1666-731X http://hdl.handle.net/1834/19453 |
_version_ |
1766268616040251392 |