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Diversity and community structure of soft-bottom benthic molluscs in the Araya Peninsula, Venezuela: a baseline for the assessment of environmental impacts
Published online by Cambridge University Press: 01 December 2011
Abstract
The north-eastern region of Venezuela includes some of the most productive marine ecosystems of the country, sustaining high abundances of fisheries resources. This feature, coupled with the high diversity of coastal ecosystems, increases the interest for the development of conservation policies to prevent and/or mitigate negative environmental impacts associated with human interventions at the area. However, previous malacological assessments made in the Araya Peninsula are mainly restricted to epibiotic molluscs associated with bivalve banks. In this vein, we performed three different surveys for soft-bottom molluscs in the intertidal (using a stainless steel corer), shallow subtidal (Eckman dredge) and subtidal (Arca zebra dredge) areas of Araya Peninsula. We found 41 species including Bivalvia, Gastropoda, one Cephalopoda and one Scaphopoda, although according to sample-based rarefaction techniques there may be several more undetected species. Since there is an ongoing project aiming to construct a shipping terminal on Araya Peninsula that could adversely affect coastal marine biodiversity in the region, the knowledge about the molluscan assemblage in the area is a key requirement for designing conservation measures.
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- Copyright © Marine Biological Association of the United Kingdom 2011
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