Of all the fishing-gear types monitored in the study, longlining was the most widespread and was observed in 45 percent of the ocean. Gear types also differed by latitude. Trawling was most prevalent at higher latitudes, purse-seining in tropical regions, and longlining in the middle latitudes. Longline vessels were also found to have the greatest average trip length of just over 3,800 nautical miles, and displayed both transoceanic and circumglobal movements. Individual nations were found to fish mostly within their own exclusive economic zones, while China, Spain, Taiwan, Japan and South Korea were responsible for more than 85 percent of the fishing that took place on the high seas in areas beyond their national jurisdiction.