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| Provedor de dados: |
OceanDocs
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| País: |
Belgium
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| Título: |
Distribución espacial de los macroinvertebrados de playas arenosas de Cuba oriental
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| Autores: |
Ocaña, F.A.
Apín, Y.
Cala, Y.
Vega, A.
Fernández, A.
Córdova, E.
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| Data: |
2012-12-24
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| Ano: |
2012
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| Palavras-chave: |
Marine invertebrates
Sandy beaches
Zonation (ecological)
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| Resumo: |
El objetivo del presente trabajo es realizar un inventario de los macroinvertebrados bentónicos y describir su estructura espacial en 15 playas de la costa oriental de Cuba. Se registró un total de 30 especies de las cuales ocho son poliquetos, ocho moluscos, 13 crustáceos y un cefalocordado. Las especies con mayor abundancia relativa fueron Donax striatus, D. denticulatus, Parhyalella nisbetae, Thalorchestia fritzi, Eurydice convexa, Emerita talpoida y Ocypode quadrata. En la zona supralitoral se encontraron solo cuatro especies. De ellas tres aparecen también en la zona intermareal. En la zona intermareal se presenta la mayor riqueza de especies (21); mientras en la zona sublitoral se encontraron 13 especies. Las playas protegidas con ambiente estuarino presentaron una mayor riqueza de especies que las expuestas con influencia oceánica. Esto pudiera estar dado a que las playas protegidas estuarinas reciben menor energía del oleaje y mayor aporte de nutrientes, lo que crea un ambiente más favorable para un mayor número de especies. La separación de las playas en dos grupos por medio de los análisis de ordenación y agrupamiento puede tener implicaciones para el manejo en cuanto a su uso y protección.
The main goal of the present paper is to carry out an inventory of the benthic macroinvertebrates and to describe their spatial structure in 15 sandy beaches from the eastern coast of Cuba. A total of 30 species of which eight are polychaetes, eight molluscs, 13 crustaceans and one cephalochordate were recorded. The species with highest relative abundances were Donax striatus, D. denticulatus, Parhyalella nisbetae, Thalorchestia fritzi, Eurydice convexa, Emerita talpoida and Ocypode quadrata. In the supralittoral zone only four species were found, three of them also occurs in the intertidal zone. In the intertidal zone occurs the highest species richness (21) whereas in the sublittoral zone 13 species were found. Sheltered beaches with estuarine environment present greater species richness than those exposed to oceanic influence. That could be due to a lower wave energy and higher productivity in the sheltered estuarine beaches that create a more favourable environment for a higher number of species. The segregation beaches in two types groups by both the classification and ordination analyses could have management implications regarding their use and protection.
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| Tipo: |
Journal Contribution
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| Idioma: |
Espanhol
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| Identificador: |
Revista de Investigaciones Marinas, 32 (1), p. 30-37
1991-6086
http://hdl.handle.net/1834/4546
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| Relação: |
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http://creativecommons.org/licenses/by-nc/3.0/
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