"Once upon a time in the Mediterranean" long term trends of Mediterranean fisheries resources based on fishers' Traditional Ecological Knowledge.

Atlantic mackerel, poor cod, scorpionfishes, striped seabream, and John Dory demonstrated a decreasing trend in the fishers’ perceived abundance, while Mediterranean parrotfish, common pandora, cuttlefish, blue and red shrimp, and mullets gave indications of an increasing temporal trend.

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By combining responses of each respondent over all time periods, the recorded taxa were assigned to a trend factor: species showing a decreasing trend (“D”), species showing an increasing trend (“I”) and species not showing any noticeable trend (classified as stable or “S”).

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