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Caballero, H.; Busutil, L.; García, Y.; Alcolado, P.M.. |
The sponge communities at four locations on the east coast of Bahía de Cochinos were surveyed in October 2002. At each location, sampling sites were established in the ecological zones of patch reef (3 m), shallow terrace (6-10 m), and deep terrace (15 m). The line-transect method with a 10 m line as sampling unit was used to measure sponge bottom coverage, and a 1 m square grid was used to quantify sponge community density. Species heterogeneity and species richness indices showed variability among sites and tended to increase with depth. Thirty species belonging to 19 families and 21 genera were found. The most common species were: Mycale laevis, Aplysina cauliformis, Cliona aprica, Aplysina fistularis, and Ectyoplasia ferox, which comprised 48% of the... |
Tipo: Journal Contribution |
Palavras-chave: Sponges; Aquatic communities; Coral reefs; Aquatic communities; Coral reefs; Sponges; Http://aims.fao.org/aos/agrovoc/c_553; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_7321. |
Ano: 2009 |
URL: http://hdl.handle.net/1834/3523 |
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Arango, C.P.; Solano, O.D.. |
Soft bottom megabenthic communities have been poorly studied in the Caribbean Sea. In this study we describe the structure and species composition of a Crustacea-Mollusca megafaunal community based on beam trawl samples taken between 13 and 60 m depth at the southwestern region of Santa Marta, Colombian Caribbean. Classification and ordination analyses using abundance data of crustaceans and molluscs produced two main groups (A and C), which seem to be controlled by depth and sediment characteristics. Group A consisted of species collected at the deeper stations and high content of silts (between 30 and 60 m depth) and exhibited the highest density and biomass mean values. The decapod Chasmocarcinus cilindricus was found as the characteristic species for... |
Tipo: Journal Contribution |
Palavras-chave: Aquatic communities; Aquatic communities; Http://aims.fao.org/aos/agrovoc/c_553. |
Ano: 1999 |
URL: http://hdl.handle.net/1834/3242 |
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