Palma/Madrid.—A study led by researcher Marta Coll and with data from Oceana in the Balearics reveals how the quantity and quality of the catch has been declining since the nineteen-fifties.
 According to Spanish fishermen in the Mediterranean and the Gulf of Cadiz in 1950, fishing was carried out in shallower waters and closer to the coast than today. This change is linked to the overexploitation of coastal resources, which has led to an expansion of the area of activity in search of new fishing grounds.