Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf

Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf

The Argentine continental shelf was divided into 12 sectors every two degrees of latitude. All the bibliographical records and hydropolyp species found in each section were registered. The Hydrozoa of southern sections of the Magellanic zoogeographical province have been investigated since the ninet...

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Autores principales: Genzano, GN, Zamponi, MO
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 1997
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/817
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spelling oai:cienciasmarinas.com.mx:article-8172019-05-22T20:20:33Z Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf Frecuencia de estudio y diversidad de los hidrozoos bentónicos de la plataforma continental argentina Genzano, GN Zamponi, MO zoogeography Cnidaria benthic Hydrozoa Argentina zoogeografía Cnidaria Hydrozoa bentónicos Argentina The Argentine continental shelf was divided into 12 sectors every two degrees of latitude. All the bibliographical records and hydropolyp species found in each section were registered. The Hydrozoa of southern sections of the Magellanic zoogeographical province have been investigated since the nineteenth century, while in northern sections of this province and in the Bonaerensian zoogeographical province studies began in the early 1960s. The north section of the Magellanic zoogeographical province is the least known and shows less diversity. A total of 116 species were found. They are distributed among the families Sertulariidae (32.8%) Syntheciidae (1.7%), Campanulariidae (26.7%), Lafoeidae (10.3%) Plumulariidae (8.6%), Haleciidae (5.2%) Campanuliniidae (4.3%) Tubulariidae (2.6%), Bougainvilliidae (2.6%) Hydractiniidae (1.7%), Eudendriidae (1.7%), Corynidae (0.9%) and Clavidae (0.9%). Endemism was rare (8.5%) but 49.6% of the species have an austral distribution and 41.9% are cosmopolitan species. There are differences between the two zoogeographical provinces analyzed; the Magellanic zoogeographical province shows higher diversity (94 species), with 71 exclusive species, while the Bonaerensian zoogeographical province shows 48 species, 25 exclusive. Only 23 species were found in both provinces. La plataforma continental argentina fue dividida en 12 sectores cada dos grados de latitud a fin de contabilizar, en cada uno de ellos, las citas bibliográficas y las especies registradas. De este análisis se desprende que el sector sur de la provincia magallánica fue investigado desde fines del siglo XIX, mientras que el sector norte de la misma y la provincia bonaerense comenzaron a estudiarse en la década de los años sesenta. El sector norte de la provincia magallánica es el menos conocido y el que presenta menor diversidad. En cuanto a la composición faunística, se han encontrado 116 especies pertenecientes a las familias Sertulariidae (32.8%), Syntheciidae (1.7%) Campanulariidae (26.7%) Lafoeidae (10.3%) Plumulariidae (8.6%), Haleciidae (5.2%) Campanuliniidae (4.3%) Tubulariidae (2.6%) Bougainvilliidae (2.6%) Hydractiniidae (1.7%) Eudendriidae (1.7%) Corynidae (0.9%) y Clavidae (0.9%). El endemismo observado fue del 8.5%; en cambio, un 49.6% de las especies poseen una distribución circunscripta al hemisferio austral y un 41.9% son cosmopolitas. Existen diferencias entre las dos provincias biogeográficas analizadas; la magallánica es más diversa (94 especies), con 71 especies exclusivas, mientras que la bonaerense presenta 48 especies, 25 exclusivas, registrándose 23 especies comunes. Iniversidad Autónoma de Baja California 1997-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/817 10.7773/cm.v23i3.817 Ciencias Marinas; Vol. 23 No. 3 (1997); 285-392 Ciencias Marinas; Vol. 23 Núm. 3 (1997); 285-392 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/817/742
institution Ciencias Marinas
collection OJS
language eng
format Online
author Genzano, GN
Zamponi, MO
spellingShingle Genzano, GN
Zamponi, MO
Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
author_facet Genzano, GN
Zamponi, MO
author_sort Genzano, GN
title Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
title_short Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
title_full Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
title_fullStr Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
title_full_unstemmed Frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
title_sort frequency of study and diversity of benthic hydrozoa of the argentine continental shelf
description The Argentine continental shelf was divided into 12 sectors every two degrees of latitude. All the bibliographical records and hydropolyp species found in each section were registered. The Hydrozoa of southern sections of the Magellanic zoogeographical province have been investigated since the nineteenth century, while in northern sections of this province and in the Bonaerensian zoogeographical province studies began in the early 1960s. The north section of the Magellanic zoogeographical province is the least known and shows less diversity. A total of 116 species were found. They are distributed among the families Sertulariidae (32.8%) Syntheciidae (1.7%), Campanulariidae (26.7%), Lafoeidae (10.3%) Plumulariidae (8.6%), Haleciidae (5.2%) Campanuliniidae (4.3%) Tubulariidae (2.6%), Bougainvilliidae (2.6%) Hydractiniidae (1.7%), Eudendriidae (1.7%), Corynidae (0.9%) and Clavidae (0.9%). Endemism was rare (8.5%) but 49.6% of the species have an austral distribution and 41.9% are cosmopolitan species. There are differences between the two zoogeographical provinces analyzed; the Magellanic zoogeographical province shows higher diversity (94 species), with 71 exclusive species, while the Bonaerensian zoogeographical province shows 48 species, 25 exclusive. Only 23 species were found in both provinces.
publisher Iniversidad Autónoma de Baja California
publishDate 1997
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/817
_version_ 1715724015182544896

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