Kill the fish at the top and you may get an explosion of smaller ones below, gobbling up much more food than would be eaten by a few big fish of the same total weight.
消灭了食物链顶端的鱼，在低端的小一些的鱼就会暴增，将吞食掉比与它们总重量相同的少量大鱼所吃的更多的食物。
It would make sense to give the fish enough time to recover, grow to full sizes and reproduce, then catch them in a way that doesn't kill other innocent sea life.
给这些鱼足够的时间来恢复、成长和繁殖，然后以一种不会杀死其他无辜海洋生物的方式来捕获它们，这是有意义的。
In such places red tides tend to form, some producing toxins that get into the food chain through shellfish and rise up to kill bigger fish (if there are any left), birds and even seals and manatees.
在这样的地方赤潮容易形成，有些会产生毒素，毒素通过贝壳动物进入食物链，并且增多而杀死较大的鱼(如果还有任何剩下来的话)、鸟，甚至海豹和海牛。
Some are genetically engineered on fish farms, while the rest are hooked by the mouth or netted by huge trawlers that catch and kill everything in their path.
有些是养鱼场基因改造的鱼，其余的则是嘴被钩住或是被巨大的拖网渔船网住，拖网渔船所过之处一路捕杀。
The cause of the fish kill has not yet been determined, but the area they were discovered in was impacted by oil from the BP oil spill.
鱼的死亡原因尚未确定，但是它们被发现的区域受到英国石油公司泄漏原油的影响。
Younger kids will love the repetition of the verses in this tale of a pout-pout fish who spreads his "dreary-wearies" and is an absolute buzz-kill wherever he swims.
小孩子会喜欢这个撅嘴鱼童话里那些不断重复的儿歌的。这条鱼到处散布它的“沉闷的厌倦”，不管游到哪里它都是绝对的扫兴者。
Legend has it that the first emperor resolved to lead the next search party himself; on the expedition, the story goes, he used a repeating crossbow to kill a huge fish.
据说秦始皇后来又一次组织远行并亲自带队；在征途中，他用弩杀死了一只巨鱼。
I wish I could feed the fish, he thought. He is my brother. But I must kill him and keep strong to do it. Slowly and conscientiously he ate all of the wedge-shaped strips of fish.
我希望可以饲养这些鱼儿，他想著。他是我的兄弟。但是我必须杀掉他，还有保证强壮的身体来处理它。凭良心，他慢慢的吃掉了所有楔形的细长的鱼。
Professor David Caron said fish collected on March eighth, the day of the kill, tested "strongly positive" for domoic acid in their stomach contents.
戴维·卡隆教授表示，对3月8日鱼类死亡事件当天采集到的死鱼检测显示，死鱼胃中残留物呈软骨藻酸“强阳性”。
Trees do more than keep the soil in place. They also soak up water and prevent flash floods, and keep rivers clear of sediment that can kill fish.
树木所起的作用不止于保持水土。树木还吸收水份、防止洪水突发，并使河流不至于含有可杀死鱼类的泥沙沉淀。
Mantas, with their slow reproductive rate, are vulnerable to overfishing, so a robust tourist trade could give local communities an economic incentive to conserve the fish rather than kill them.
蝠鲼繁殖率缓慢，很容易受到过度捕捞，所以强大的旅游业可以给当地社区的经济补助，以保护鱼类，而不是杀死它们。
Both methods, say the tar sands' critics, threaten local rivers, poison fish, destroy the landscape, kill wildlife and pollute the air.
开采油砂矿的批评者们说，这两种方法都威胁到当地的河流，毒死了鱼类，破坏了景观，杀死了野生动物，污染了空气。
The kill operation — which will require the removal of an estimated 200,000 pounds of dead fish to a landfill — began Wednesday and was expected to last until Saturday.
此次的毒鱼行动于周三启动，预计将持续到周六——预计将从湖里打捞出有约20万磅的死鱼并被埋入土中。
The kill operation -- which will require the removal of an estimated 200, 000 pounds of dead fish to a landfill -- began Wednesday and was expected to last until Saturday.
此次的毒鱼行动于周三启动，预计将持续到周六——预计将从湖里打捞出有约20万磅的死鱼并被埋入土中。
Unfortunately, cooking fish can't remove mercury, but it can kill worms, like the tiny, parasitic worms Anisakis simplex.
令人遗憾的是，蒸煮过的鱼也不能除掉鱼组织里面的水银，不过它可以杀死一些虫类，象微小的寄生虫和粗娓原虫。
The waste water will pour into rivers, lakes and fields. It will harm the crops , kill a large number of fish.
废水流到河里，湖里和田野里，污染农作物，杀死大量的鱼。
Thee waste water will pour into rivers, lakes and fields. It will harm the crops, kill a large number of fish.
废水流到河里，湖里和田野里，污染农作物，杀死大量的鱼鱼。
It may kill fish and other water animals in the immediate area or prevent them from breeding.
污水源附近的鱼类和其它水生动物可能会死掉或无法繁殖。
There's a Greek myth about a deer that hunters and wolves could not kill because the life of the deer was hidden in the belly of a fish that swam the oceans of the world.
有一个希腊神话是关于一头鹿的，猎人和野狼都无法取下这头鹿的性命，因为牠隐藏在一尾鱼的肚子里，而这尾鱼穿梳于各大海洋。
The waste water will pour into rivers, lakes and fields. It will harm the crops, kill a large number of fish.
废水流到河里，湖里和田野里，污染农作物，杀死大量的鱼。
The box jelly fish can kill a human in five minutes with the stings from its tentacles proving so painful they can prompt a heart attack.
箱形水母触角上的刺足以让人疼出心脏病来，在五分钟内置人于死地。
"No," said the doctor, "but he's drinking like a fish and will kill himself if he keeps it up."
“不是，”大夫说，“不过他喝酒太多，再这样下去是会害死他自己的。”
Even though it is no longer necessary to kill wild game or catch fish in order to live, the devotion to these activities has remained.
即使人类已不再需要以捕杀野生动物或捕鱼为生，但对这些活动的热衷却依然存在。
It is prohibited to fish and kill, or hurt the aquatic wild animals under the State's key protection.
禁止捕杀、伤害国家重点保护的水生野生动物。
It is banned to fish and kill, or hurt the aquatic wild animals under the State's key protection.
禁止捕杀、伤害国家重点保护的水生野生动物。
It is banned to fish and kill, or hurt the aquatic wild animals under the State's key protection.
禁止捕杀、伤害国家重点保护的水生野生动物。
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