ENVIRONMENTAL PREFERENCES OF THUNNUS OBESUS NEAR PALAU: APPLICATIONS TO LONGLINE FISHERY
帕劳群岛附近海域延绳钓渔场大眼金枪鱼(Thunnus obesus)的环境偏好

The relationships between vertical distribution of adult bigeye tuna (Thunnus obesus) and water temperature, salinity, and dissolved oxygen and the environmental preferences of the bigeye tuna near Palau were studied in this research to increase the catch rate of bigeye tuna and reduce the bycatch of non-targeting species. Longliner CFA No.07 in super-spool and chilled seawater systems was used as the platform for sampling. Sampling in waters near Palau was conducted from Aug.14, 2005 to Dec.19, 2005. The d...