Abstract:
:The implementation of the European directive (ELD) 2000/60/EC has produced the development of several biotic indices based in benthic communities. These indices try to summarise ecological quality status of different communities. However, a universal index that works in all situations is difficult to establish, because there are several sources of variation. Therefore, there is the need for testing and validation of these indices which is required for making management decisions on different scales, and in different regions and communities. In this study we test one of these indices, BOPA index, developed by Dauvin and Ruellet [Dauvin, J.C., Ruellet, T., 2007. Polychaete/amphipod ratio revisited. Marine Pollution Bulletin 55, 215-224] in five locations affected by sewage disposal. These disposals are often released via outfall into shallow subtidal habitats, leading to a common source of pollution in coastal marine environments. BOPA index provides a valuable overview of the gradient status of a benthic environment, discriminating between stations more affected by discharge. Nevertheless, BOPA index, used to establish the ecological quality status, seemed to overestimate the status and hence there is the need to calibrate the thresholds between EcoQs classes as defined for these medium-to-fine sand communities, which are characteristics of shallow sublittoral soft-bottoms of the north-western Mediterranean Sea.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
de-la-Ossa-Carretero JA,del-Pilar-Ruso Y,Giménez-Casalduero F,Sánchez-Lizaso JLdoi
10.1016/j.marpolbul.2008.10.017subject
Has Abstractpub_date
2009-08-01 00:00:00pages
332-40issue
3eissn
0025-326Xissn
1879-3363pii
S0025-326X(08)00506-7journal_volume
58pub_type
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