Biogeographic patterns of Chilean littoral fishes

In this study, we analyzed the biogeographic patterns of the Chilean littoral fish fauna, including latitudinal trends in teleost and chondrichthyan fish species richness, their distribution range patterns, and their level of endemism, both to the Chilean coast and the Southeastern Pacific. We deter...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	OJEDA,F. PATRICIO, LABRA,FABIO A, MUÑOZ,ALEJANDRO A
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2000
Materias:	Marine biogeography littoral fishes endemism Southeastern Pacific Ocean latitudinal diversity patterns
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400007
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0716-078X2000000400007
record_format	dspace
spelling	oai:scielo:S0716-078X20000004000072001-04-09Biogeographic patterns of Chilean littoral fishesOJEDA,F. PATRICIOLABRA,FABIO AMUÑOZ,ALEJANDRO A Marine biogeography littoral fishes endemism Southeastern Pacific Ocean latitudinal diversity patterns In this study, we analyzed the biogeographic patterns of the Chilean littoral fish fauna, including latitudinal trends in teleost and chondrichthyan fish species richness, their distribution range patterns, and their level of endemism, both to the Chilean coast and the Southeastern Pacific. We determined the number and percentage of fish taxa within four different groups based on their biogeographic affinities. This was done, both for teleost and chondrichthyan fishes, at the species, genus and family level. In order to recognise the existence of biogeographic regions, we applied cluster and ordination analyses to the distribution data, using objective bootstrapping techniques at the three taxonomic levels used. We found that littoral fish diversity remains fairly constant along the coast down to around 40º S, declining south of this latitude. We detected two biogeographic regions along the Chilean coast, with a break between them at 40º S. These results lend support to previously recognized biogeographic provinces or faunistic units. These two biogeographic regions are a reflection of the mixed origin of the Chilean littoral ichthyofauna, consisting of northern warm-temperate fishes of subtropical origin and southern cold-temperate fishes of subantarctic origin. While the percentage of fishes endemic to the Chilean coast is not high (18%), a large percentage of teleost species inhabiting Chilean littoral waters are endemic to the Southeastern Pacific (44%). Dispersal and evolutionary history, rather that other factors, seem to explain the observed patterns of distribution of this particular fish fauna. This study represents a necessary first step towards understanding the biogeography of Southeastern Pacific marine fishesinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.73 n.4 20002000-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400007en10.4067/S0716-078X2000000400007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Marine biogeography littoral fishes endemism Southeastern Pacific Ocean latitudinal diversity patterns
spellingShingle	Marine biogeography littoral fishes endemism Southeastern Pacific Ocean latitudinal diversity patterns OJEDA,F. PATRICIO LABRA,FABIO A MUÑOZ,ALEJANDRO A Biogeographic patterns of Chilean littoral fishes
description	In this study, we analyzed the biogeographic patterns of the Chilean littoral fish fauna, including latitudinal trends in teleost and chondrichthyan fish species richness, their distribution range patterns, and their level of endemism, both to the Chilean coast and the Southeastern Pacific. We determined the number and percentage of fish taxa within four different groups based on their biogeographic affinities. This was done, both for teleost and chondrichthyan fishes, at the species, genus and family level. In order to recognise the existence of biogeographic regions, we applied cluster and ordination analyses to the distribution data, using objective bootstrapping techniques at the three taxonomic levels used. We found that littoral fish diversity remains fairly constant along the coast down to around 40º S, declining south of this latitude. We detected two biogeographic regions along the Chilean coast, with a break between them at 40º S. These results lend support to previously recognized biogeographic provinces or faunistic units. These two biogeographic regions are a reflection of the mixed origin of the Chilean littoral ichthyofauna, consisting of northern warm-temperate fishes of subtropical origin and southern cold-temperate fishes of subantarctic origin. While the percentage of fishes endemic to the Chilean coast is not high (18%), a large percentage of teleost species inhabiting Chilean littoral waters are endemic to the Southeastern Pacific (44%). Dispersal and evolutionary history, rather that other factors, seem to explain the observed patterns of distribution of this particular fish fauna. This study represents a necessary first step towards understanding the biogeography of Southeastern Pacific marine fishes
author	OJEDA,F. PATRICIO LABRA,FABIO A MUÑOZ,ALEJANDRO A
author_facet	OJEDA,F. PATRICIO LABRA,FABIO A MUÑOZ,ALEJANDRO A
author_sort	OJEDA,F. PATRICIO
title	Biogeographic patterns of Chilean littoral fishes
title_short	Biogeographic patterns of Chilean littoral fishes
title_full	Biogeographic patterns of Chilean littoral fishes
title_fullStr	Biogeographic patterns of Chilean littoral fishes
title_full_unstemmed	Biogeographic patterns of Chilean littoral fishes
title_sort	biogeographic patterns of chilean littoral fishes
publisher	Sociedad de Biología de Chile
publishDate	2000
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400007
work_keys_str_mv	AT ojedafpatricio biogeographicpatternsofchileanlittoralfishes AT labrafabioa biogeographicpatternsofchileanlittoralfishes AT munozalejandroa biogeographicpatternsofchileanlittoralfishes
_version_	1718439492322328576

Biogeographic patterns of Chilean littoral fishes

Ejemplares similares