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近些年来,台湾拖网船捕获的鱼类个体尺寸明显减少,拖网船的单位努力渔获量逐年急剧下降。这些事实表明,台湾海峡和台湾北部水域的底鱼资源已经减少。为了维持底鱼资源,规定拖网目尺寸成为一个重要的研究课题。网目选择性调查研究一般有两个重要目的;一是试图制定一种法规,以调节如统计
In recent years, the size of individual fish captured by trawlers in Taiwan has significantly decreased, and the number of catches by trawlers has dropped sharply year by year. These facts show that the fish stocks in the waters of the Taiwan Strait and northern Taiwan have been reduced. In order to maintain the fish resources, the size of the trawl mesh has become an important research topic. There are generally two important purposes for the selective screen research on the Internet. One is to try to formulate a regulation to regulate such as statistics