Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake

ABSTRACT This study describes the diversity, distribution, richness, abundance and species composition of the deep sea Chondrichthyes (1,000-2,250 m) of the south Patagonian Archipelago, including Cape Horn, Diego Ramirez Islands and the northern area of the Drake passage, south eastern Pacific Ocea...

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Autores principales:	Reyes,Pablo R, Torres-Florez,Juan P
Lenguaje:	Spanish / Castilian
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2009
Materias:	sharks skates patagonian toothfish Dissostichus eleginoides by-catch and discard Chilean Patagonia
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572009000100025
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spelling	oai:scielo:S0718-195720090001000252009-08-03Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso DrakeReyes,Pablo RTorres-Florez,Juan P sharks skates patagonian toothfish Dissostichus eleginoides by-catch and discard Chilean Patagonia ABSTRACT This study describes the diversity, distribution, richness, abundance and species composition of the deep sea Chondrichthyes (1,000-2,250 m) of the south Patagonian Archipelago, including Cape Horn, Diego Ramirez Islands and the northern area of the Drake passage, south eastern Pacific Ocean (52°43'S-57°05'S). The chondrichthyan fauna analyzed corresponds to the southernmost not Antarctic of the planet and consisted of 7 species belonging to 3 orders and 5 families. The species are the skates Amblyraja amblyraja frerichsi, Bathyraja cousseauae, Bathyraja meridionalis y Bathyraja macloviana and the sharks Somniosus pacificus, Squalus acanthias and Lamna nasus. The highest species richness was represented by the order Rajiformes, with 3 species of Arhynchobatidae and one species of the Rajidae, followed by the order Squaliformes, with one species of Squalidae and one species of Somniosidae. The order Lamniformes was represented by Lamnidae. The biomass was dominated by Rajidae and secondly by Somniosidae. Diego Ramirez Islands had the highest abundance and species richness, Desolation Island presented the greatest diversity and equity. The chondrichthyan fauna detected in deep waters of the southern area of the southeastern Pacific shows a strong similarity with South West Atlantic waters, even more than the one existing at mid-latitudes of the South Eastern Pacific, which corroborates the biogeographic patterns observed for coastal fish in the same area, for deepwater chondrichthyans.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.44 n.1 20092009-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572009000100025es10.4067/S0718-19572009000100025
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	sharks skates patagonian toothfish Dissostichus eleginoides by-catch and discard Chilean Patagonia
spellingShingle	sharks skates patagonian toothfish Dissostichus eleginoides by-catch and discard Chilean Patagonia Reyes,Pablo R Torres-Florez,Juan P Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake
description	ABSTRACT This study describes the diversity, distribution, richness, abundance and species composition of the deep sea Chondrichthyes (1,000-2,250 m) of the south Patagonian Archipelago, including Cape Horn, Diego Ramirez Islands and the northern area of the Drake passage, south eastern Pacific Ocean (52°43'S-57°05'S). The chondrichthyan fauna analyzed corresponds to the southernmost not Antarctic of the planet and consisted of 7 species belonging to 3 orders and 5 families. The species are the skates Amblyraja amblyraja frerichsi, Bathyraja cousseauae, Bathyraja meridionalis y Bathyraja macloviana and the sharks Somniosus pacificus, Squalus acanthias and Lamna nasus. The highest species richness was represented by the order Rajiformes, with 3 species of Arhynchobatidae and one species of the Rajidae, followed by the order Squaliformes, with one species of Squalidae and one species of Somniosidae. The order Lamniformes was represented by Lamnidae. The biomass was dominated by Rajidae and secondly by Somniosidae. Diego Ramirez Islands had the highest abundance and species richness, Desolation Island presented the greatest diversity and equity. The chondrichthyan fauna detected in deep waters of the southern area of the southeastern Pacific shows a strong similarity with South West Atlantic waters, even more than the one existing at mid-latitudes of the South Eastern Pacific, which corroborates the biogeographic patterns observed for coastal fish in the same area, for deepwater chondrichthyans.
author	Reyes,Pablo R Torres-Florez,Juan P
author_facet	Reyes,Pablo R Torres-Florez,Juan P
author_sort	Reyes,Pablo R
title	Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake
title_short	Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake
title_full	Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake
title_fullStr	Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake
title_full_unstemmed	Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake
title_sort	diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, cabo de hornos, islas diego ramírez y el sector norte del paso drake
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572009000100025
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_version_	1714202282204069888

Diversidad, distribución, riqueza y abundancia de condrictios de aguas profundas a través del archipiélago patagónico austral, Cabo de Hornos, Islas Diego Ramírez y el sector norte del paso Drake

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