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Los pastos marinos del Parque Nacional Caguanes, Sancti Spíritus, Cuba

Authors: Beatriz Martínez-Daranas; Jhoana Díaz-Larrea; Mercedes Cano-Mallo; Macario Esquivel-Céspedes; Miguel Hernández; Sergio Lorenzo;

Los pastos marinos del Parque Nacional Caguanes, Sancti Spíritus, Cuba

Abstract

Los pastos marinos son reconocidos, cada vez más, como un recurso natural de gran importancia por los servicios ecosistémicos que proveen. El Parque Nacional Caguanes (PNC) es el área protegida marina más amenazada por contaminación orgánica en el archipiélago Sabana-Camagüey. El objetivo de este artículo es presentar la distribución y características de los pastos marinos del PNC, a partir de datos de marzo de 2003. Se hicieron recorridos a lo largo de transectos perpendiculares a la costa, donde se realizaron muestreos de cobertura, densidad y biomasa de angiospermas marinas y las macroalgas asociadas. Se midió la profundidad, la transparencia, la visibilidad horizontal y la salinidad del agua. Se encontraron grandes extensiones de pastos marinos, donde la especie de angiosperma marina Thalassia testudinum apareció con alta frecuencia y una cobertura media de 13,5% (± 24,1 DE) para todo el área estudiada. Syringodium filiforme presentó una cobertura global mayor que la de T. testudinum (20,5 ± 24,7%). Halodule wrightii también tuvo una cobertura relativamente alta en varios sitios con una media de 5,9 ± 13,8%. El orden en que aparecieron las especies de angiospermas marinas a lo largo de los transectos fue variable. Fueron observadas macroalgas verdes rizofíticas en los fondos, entre las angiospermas marinas; también estuvieron entremezcladas con otras especies formando masas de macroalgas a la deriva sobre las angiospermas marinas. El epifitismo fue relativamente escaso, cubriendo alrededor del 25 % de la superficie foliar. Se localizaron cinco sitios sin vegetación marina, donde existe poca transparencia del agua por contaminación orgánica.

Keywords

G, macroalgas, angiospermas marinas, epífitas, Geography. Anthropology. Recreation, transparencia, GC1-1581, Oceanography, angiospermas marinas, macroalgas, epífitas, transparencia.

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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