An analysis of the historical catches of hake, 1936-1977, in subareas IV, VI, VII and VIII
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AuthorsPereiro-Muñoz, J.A. (José Antonio); Fernández, Á. (Álvaro); Pereiro-Muñoz, F.J. (Francisco Javier)
Changes in the catch level of hake since 1936 to 1977 corresponding to subareas IV, VI, VII and VIII -area of distribution of the northern stock of hake, plus division VIIIc- are described and analysed. Four periods can be defined in relation to the catch level: 1) The wars period, 1936-1944, with catches reduced for the course of the spanish civil war, and the second big war; 2) Post-war period, 1945-47, when the effort recovered suddenly at least the prewar level, with very high catches consisting of a portion of the big standing stock accummulated during the wars period plus the surplus.; 3) 1953-1964, with catches stabilized at a level between 70 and 85000 tons; and 4) 1964-77, with catches between 60 and 70000 tons. The document shows how most of the reduction of the catch happened in divisions lVa+Vla, and atributes this decrease in the catch of hake to the strong increaee in trawl effort on the Northern divisions.
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