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An ecosystem-based approach to assess the status of Mediterranean algae-dominated shallow rocky reefs

Abstract : A conceptual model was constructed for the functioning the algae-dominated rocky reef ecosystem of the Med-iterranean Sea. The Ecosystem-Based Quality Index (reef-EBQI) is based upon this model. This index meets the objectives of the EU Marine Strategy Framework Directive. It is based upon (i) the weighting of each compartment , according to its importance in the functioning of the ecosystem; (ii) biological parameters assessing the state of each compartment; (iii) the aggregation of these parameters, assessing the quality of the ecosystem functioning , for each site; (iv) and a Confidence Index measuring the reliability of the index, for each site. The reef-EBQI was used at 40 sites in the northwestern Mediterranean. It constitutes an efficient tool, because it is based upon a wide set of functional compartments, rather than upon just a few species; it is easy and inexpensive to implement, robust and not redundant with regard to already existing indices.
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Thierry Thibaut, Aurelie Blanfuné, Charles Boudouresque, Sébastien Personnic, Sandrine Ruitton, et al.. An ecosystem-based approach to assess the status of Mediterranean algae-dominated shallow rocky reefs. Marine Pollution Bulletin, Elsevier, 2017, 117 (1-2), pp.311 - 329. ⟨10.1016/j.marpolbul.2017.01.029⟩. ⟨hal-01764877⟩

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