任何商业捕捞业的第一需要就是渔民能始终捕获一定数量的商品鱼。为了做到这一点,渔民或者寻找鱼类大量生息之场所,或者使用一些方法将原来分散在广阔水域的大量鱼类诱集到一个场所。这两种技术(即寻鱼和诱鱼)成为渔民们在某一特定的自然环境中从事渔业时必须发展的 The first need of any commercial fishing industry is that fishermen can always capture a certain amount of commercial fish. In order to do this, fishermen either look for places where fish will flourish, or use a number of methods to trap a large number of fish originally scattered in vast waters. Both of these technologies (finding fish and luring fish) have to be developed by fishermen when they are engaged in fisheries in a particular natural environment