Review of a Small-scale Pelagic Longline Fishery off Northeastern Brazil

Hazin, F. H. V. and Zagaglia, J. R. and Broadhurst , M. K. and Travassos, P. E. P. and Bezerra, T. R. Q. (1998) Review of a Small-scale Pelagic Longline Fishery off Northeastern Brazil. Marine Fisheries Review, 60(3), pp. 1-8.

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Abstract

The annual catches of four small longliners operating off northeast Brazil from 1983 to 1997 were examined across different areas and locations. The total catch comprised tunas (30%), sharks (54%), billfishes (12%), and other fish species (4%). Fishing strategy and annual composition of catches showed large spatial and temporal variabilities with the dominant catches alternating among yellowfin tuna, Thunnus albacares; gray sharks, Carcharhinus spp.; and blue shark, Prionace glauca. Catches of blue and gray sharks showed a significant interaction among seamounts, with gray sharks occurring in maximum abundance around those seamounts that had relatively deep summits and low-sloping depth profiles. Results are discussed in terms of the various factors that may have influenced distribution of effort.

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