Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos
In total, ca. 7000 zooplanktonic species have been described for the World Ocean. This figure represents less than 4% of the total number of known marine organisms. Of the 7000 zooplanktonic species world-wide, some 60% are present in the South Atlantic; about one third of the latter have been recor...
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2005
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ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/308 2023-05-15T13:41:51+02:00 Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos Diversidad y endemismo en las aguas frías del Atlántico sur: contrastes entre el plancton y el bentos Boltovskoy, Demetrio Correa, Nancy Boltovskoy, Andrés 2005-12-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/308 https://doi.org/10.3989/scimar.2005.69s217 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/308/308 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/308 doi:10.3989/scimar.2005.69s217 Copyright (c) 2005 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 69 No. S2 (2005); 17-26 Scientia Marina; Vol. 69 Núm. S2 (2005); 17-26 1886-8134 0214-8358 10.3989/scimar.2005.69s2 biodiversity biogeography zooplankton benthos Antarctic Subantarctic biodiversidad biogeografía zooplancton bentos Antártida subantártico info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2005 ftjscientiamarin https://doi.org/10.3989/scimar.2005.69s217 https://doi.org/10.3989/scimar.2005.69s2 2022-03-20T16:30:24Z In total, ca. 7000 zooplanktonic species have been described for the World Ocean. This figure represents less than 4% of the total number of known marine organisms. Of the 7000 zooplanktonic species world-wide, some 60% are present in the South Atlantic; about one third of the latter have been recorded in its Subantarctic waters, and ca. 20% south of the Polar Front. When compared with those of benthic animals, these figures indicate that proportions of the overall inventories that are present in the cold waters are almost two times higher among the zooplankton. In agreement with this pattern, the proportions of Antarctic endemics in the benthos are very significantly higher than those in the plankton. For the water-column dwelling animals, the Polar Front boundary is more important than the Tropical-Subtropical limit, but almost equivalent to the Subtropical-Transitional limit, and weaker in biogeographic terms than the Transitional-Subantarctic boundary. Some of the implications of these dissimilarities, both for ecological theory and for resource allocation strategies, are discussed. Para el Océano Mundial se ha descrito un total de 7000 especies de zooplancton. Esta cifra representa menos del 4% de los organismos marinos conocidos. De las 7000 especies zooplanctónicas del mundo, cerca del 60% está presente en el Atlántico Sur. De este 60%, alrededor de un tercio fueron registradas en aguas subantárticas, y ca. 20% al sur del Frente Polar. La comparación de estos valores con los de los animales bentónicos indica que, con respecto al total de especies descritas, en el zooplancton la proporción que habita las aguas frías duplica a las del bentos. En concordancia con ello, la proporción de endemismos es mucho más alta en el bentos que en el plancton. Para los animales que habitan la columna de agua la barrera del Frente Polar es más importante que el Límite Tropical-Subtropical, pero casi igual que el Límite Subtropical-Transición, y menos importante en términos biogeográficos que el Límite Transición-Subantártico. Se discuten algunas implicaciones de estas diferencias en términos de teoría ecológica y de las estrategias de distribución de los recursos. Article in Journal/Newspaper Antarc* Antarctic Antártida Scientia Marina (E-Journal) Antarctic Alta Límite ENVELOPE(-57.629,-57.629,-61.898,-61.898) Scientia Marina 69 S2 17 26 |
institution |
Open Polar |
collection |
Scientia Marina (E-Journal) |
op_collection_id |
ftjscientiamarin |
language |
English |
topic |
biodiversity biogeography zooplankton benthos Antarctic Subantarctic biodiversidad biogeografía zooplancton bentos Antártida subantártico |
spellingShingle |
biodiversity biogeography zooplankton benthos Antarctic Subantarctic biodiversidad biogeografía zooplancton bentos Antártida subantártico Boltovskoy, Demetrio Correa, Nancy Boltovskoy, Andrés Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos |
topic_facet |
biodiversity biogeography zooplankton benthos Antarctic Subantarctic biodiversidad biogeografía zooplancton bentos Antártida subantártico |
description |
In total, ca. 7000 zooplanktonic species have been described for the World Ocean. This figure represents less than 4% of the total number of known marine organisms. Of the 7000 zooplanktonic species world-wide, some 60% are present in the South Atlantic; about one third of the latter have been recorded in its Subantarctic waters, and ca. 20% south of the Polar Front. When compared with those of benthic animals, these figures indicate that proportions of the overall inventories that are present in the cold waters are almost two times higher among the zooplankton. In agreement with this pattern, the proportions of Antarctic endemics in the benthos are very significantly higher than those in the plankton. For the water-column dwelling animals, the Polar Front boundary is more important than the Tropical-Subtropical limit, but almost equivalent to the Subtropical-Transitional limit, and weaker in biogeographic terms than the Transitional-Subantarctic boundary. Some of the implications of these dissimilarities, both for ecological theory and for resource allocation strategies, are discussed. Para el Océano Mundial se ha descrito un total de 7000 especies de zooplancton. Esta cifra representa menos del 4% de los organismos marinos conocidos. De las 7000 especies zooplanctónicas del mundo, cerca del 60% está presente en el Atlántico Sur. De este 60%, alrededor de un tercio fueron registradas en aguas subantárticas, y ca. 20% al sur del Frente Polar. La comparación de estos valores con los de los animales bentónicos indica que, con respecto al total de especies descritas, en el zooplancton la proporción que habita las aguas frías duplica a las del bentos. En concordancia con ello, la proporción de endemismos es mucho más alta en el bentos que en el plancton. Para los animales que habitan la columna de agua la barrera del Frente Polar es más importante que el Límite Tropical-Subtropical, pero casi igual que el Límite Subtropical-Transición, y menos importante en términos biogeográficos que el Límite Transición-Subantártico. Se discuten algunas implicaciones de estas diferencias en términos de teoría ecológica y de las estrategias de distribución de los recursos. |
format |
Article in Journal/Newspaper |
author |
Boltovskoy, Demetrio Correa, Nancy Boltovskoy, Andrés |
author_facet |
Boltovskoy, Demetrio Correa, Nancy Boltovskoy, Andrés |
author_sort |
Boltovskoy, Demetrio |
title |
Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos |
title_short |
Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos |
title_full |
Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos |
title_fullStr |
Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos |
title_full_unstemmed |
Diversity and endemism in cold waters of the South Atlantic: contrasting patterns in the plankton and the benthos |
title_sort |
diversity and endemism in cold waters of the south atlantic: contrasting patterns in the plankton and the benthos |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2005 |
url |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/308 https://doi.org/10.3989/scimar.2005.69s217 |
long_lat |
ENVELOPE(-57.629,-57.629,-61.898,-61.898) |
geographic |
Antarctic Alta Límite |
geographic_facet |
Antarctic Alta Límite |
genre |
Antarc* Antarctic Antártida |
genre_facet |
Antarc* Antarctic Antártida |
op_source |
Scientia Marina; Vol. 69 No. S2 (2005); 17-26 Scientia Marina; Vol. 69 Núm. S2 (2005); 17-26 1886-8134 0214-8358 10.3989/scimar.2005.69s2 |
op_relation |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/308/308 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/308 doi:10.3989/scimar.2005.69s217 |
op_rights |
Copyright (c) 2005 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3989/scimar.2005.69s217 https://doi.org/10.3989/scimar.2005.69s2 |
container_title |
Scientia Marina |
container_volume |
69 |
container_issue |
S2 |
container_start_page |
17 |
op_container_end_page |
26 |
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1766159163699757056 |