SWFSC Marine Mammal Survey of the Eastern Tropical Pacific (1370)

This 1990 eastern tropical Pacific cetacean line-transect survey was
the fifth and final in a series of annual surveys (1986-1990) designed to
monitor and detect trends in populations of dolphins killed in the yellowfin
tuna purse seine fishery. This survey was conducted by the NOAA Southwest
Fisheries Science Center aboard NOAA ships David Starr Jordan and McArthur for
a combined total of approximately 32,000 kilometers surveyed from late July to
early December 1990. This dataset provides the time-date and geographical
coordinates, by species/stock, of all cetaceans detected during the survey, as
well as the daily and intra-daily start and end points of the line-transect
survey.