Estadística de las pesquerías españolas atuneras, en el Océano Atlántico Tropical, período 1990 a 2017

This document sets out the data for the Spanish fleet, strategies, fishing areas, catches of target species, effort, CPUEs, samplings and size distributions of target species. In 2017, total catch decreased by 5%. Twice as many sets have been carried out on objects than on free schools. More than 80% were conducted on objects and less than 20% on free schools. Average weights were: 5.3 kg for yellowfin tuna (3.8 kg on objects and 31 kg on free schools); 1.6 kg for skipjack (1.6 kg on objects and 2.03 kg on free schools); and 3.37 kg for bigeye tuna (3.27 kg on objects and 37.9 kg on free schools). The modal size for yellowfin tuna caught on objects is 46 cm and the two modal sizes for free school catches are 52 and 150 cm. The modal size for skipjack caught on objects is 42 cm and the modal sizes for free schools are 46, 55 and 64 cm. There is a single modal size for bigeye tuna caught on objects, i.e. 42 cm, and three modal sizes for free schools, i.e. 42, 114 and 146 cm.