Complex and unique ecologies, most notably underground volcanoes known as seamounts, are ripped to shreds, because bottom trawling is the “low cost” way to catch a few deep sea fish species. One of these species, orange roughy, has been caught commercially for only around a quarter-century, but already is being fished to the point of collapse.
让我们来看一看几个臭名昭著的例子。像西班牙、葡萄牙、澳大利亚以及新西兰等富国拥有从事所谓“水底拖网”的捕鱼船队。水底拖网在海洋底部拖走很重的鱼网，从而在这一过程中摧毁大量没有探明并且受到威胁的海洋物种。因为水底拖网是捕捞某些深海鱼种的“低成本”办法，因此某些复杂而又独特的生态、最为主要的是被称为海底山的地下火山被切断。其中的一个物种叫做橙连鳍鲑，被用于商业捕捞不过大约25年的时间，但是已经被捕捞得处于崩溃的边缘。