The tragic youngsters are seen with cigarettes dangling from their mouths , guzzling bottles of beer , taped to furniture and left dangling from coat hooks , proving that sometimes mum and dad really don 't know best .
Local fishermen used to put them on fishing hooks and use them as bait .
当地渔民过去曾经把它们拴在鱼钩上作为钓饵。
In this case , changes in biomass were estimated by comparing the number of fish caught for every 100 hooks now and in the past .
这种情形下,生物量变化通过比较目前和以前每100条鱼钩的捕获量来进行估计。
Either by getting caught up in ocean trash or with long-line fishing hooks , the birds , which take long periods to breed , have seen their population plummet .
由于被海洋垃圾或者长线钓鱼用鱼钩所困,再加上这种鸟繁殖周期较长,使得信天翁的种群数量急速下降。
The squid , which can grow up to 6 ft. ( 1.8 m ) long , have attacked divers in southern california , and commercial fishermen in washington have reported them stealing salmon off their hooks .