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Diagrammatic representation of the BAI categories (White sample missing/lost, Green good environmental condition, Yellow tolerable environmental condition, Orange delicate environmental condition, Red bad environmental condition) determined using mussels M. galloprovincialis as sentinels to monitor ecosystem health after POS in Galicia and the Bay of Biscay. 1 April-03, 2 July-03, 3 Sept-03, 4 April-04, 5 July-04, 6 = Oct-04, 7 April-05, 8 July-05, 9 Oct-05, 10 April-06
