AN APPROACH TO ADJUSTING THE FISHING EFFORT ON THE TRAWL FISHERY IN EAST CHINA SEA AND HUANGHAI SEA
东、黄海底拖网渔业渔捞努力量修正方法的探讨

Fishing eilort is an important parameter in fishery resource study. In the previous study of trawl fishery resources of East China Sea and Huanghai sea, the number of hauls is usually taken as the unit of fishing effort. In trawl fishery, there are many factors affecting the fishing effort of which, the vessel size, actual catching time and the improvement of trawl net are the main factors. In this paper, an adjusting method about these factors is put forth with detailed data of shanghai Marine Fishery Corporation. The adjusting effect of standardized fishing effort is also discussed.