Report of multispecies assessment task research cruise in the Eastern/Central tropical Pacific October 6 - December 6, 1983 (Cruise no. RP-9-DI-84, NOAA ship Discoverer)
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Report of multispecies assessment task research cruise in the Eastern/Central tropical Pacific October 6 - December 6, 1983 (Cruise no. RP-9-DI-84, NOAA ship Discoverer)

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    The Southwest Fisheries Center (SWFC), National Marine Fisheries Service, has been investigating biological properties of the eastern tropical Pacific for many years. These studies have been primarily related to the distribution, abundance and other ecological aspects of commercially-caught tunas, and dolphins captured incidentally during tuna fishing operations. To gain a better understanding of factors affecting population processes for tunas and dolphins, a small scale research effort was begun, that focused on related but non-target species. Examples of such related species are squids, which tunas and dolphins both consume, and sea birds, which accompany coschooled tunas and dolphins. Both squids and seabirds also consume epipelagic prey, as do tunas and dolphins. Existing field research programs within the National Oceanographic and Atmospheric Association (NOAA), afford the opportunity for SWFC biologists to collect data and specimens related to the studies outlined above. Especially important in this regard is the Eastern Pacific Ocean Climate Studies (EPOCS) program which has a long term commitment to making regular research cruises in the eastern and central tropical Pacific.
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