Dolphinfish ( Coryphaena hippurus ) are an abundant, wide-ranging epipelagic predatory fish found in tropical, subtropical and temperate waters warmer than ~20°C. The species is highly migratory, and is caught by many coastal fisheries throughout its range. In the western Pacific Ocean, dolphinfish are distributed from New Zealand to Japan, and are especially abundant in the Kuroshio Current off Japan and Taiwan. In Taiwan, dolphinfish comprises an important component of coastal and offshore fisheries. The catch of dolphinfish varies throughout the year in the three major Taiwanese fishing ports (northern, eastern and southern coasts), with large seasonal peaks in April–June (spring) and smaller peaks in September–November (autumn). Dolphinfish is one of the pelagic migratory species and is the main commercial catch in eastern Taiwan. Movement characteristic of migratory fish occurs to adapt to the environmental conditions. Therefore, spatial-temporal dynamics is one of the research interests for fish ecology. In addition, understanding of the dynamics of fishing ground for vessels is an important issue for fisheries management. This study will analyze the spatial and temporal distribution and catch composition of the fishing ground for the dolphinfish fisheries using the catch data by sample vessel. To achieve understand fisheries interactions, thermal habitat, vertical and migration corridors these goals, the project will employ biologging science to provide the high-resolution behavioral data that is required to understand how the specific behaviors of dolphinfish change in relation to shifting oceanographic conditions. The overall results will understand the temporal and spatial changes of the dolphinfish fishery ground and abundance index of eastern Taiwan as well as the habitat characteristics and movement patterns of the dolphinfish, which will provide scientific information to fisheries management and habitat protection for this species.