Most recently, he has modelled the behaviour of shoals of fish.

最近，他建立了鱼群行为模型。

Thirty miles away, shoals of squid are jetting upwards towards the surface.

30英里外的海上，大量的鱿鱼游到海面上。

A shoal of fish will do this.

鱼群也反射声音。

This will give some idea of the havoc it makes among shoals of fish.

由这可想而知，它是如何肆意蹂躏浅滩上的鱼类的。

This group is led by Mr Zhang, an expert in tracking down shoals of bighead carp.

这一队的队长是张先生，他可是追踪胖头鱼群的行家里手。

So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.

从测定海深到测定鱼群，这一进展比较容易。

By contrast, the baleen whales the researchers looked at, once they have encountered a shoal of prey, are in nutritional nirvana.

相比之下，研究人员观察到的须鲸一旦遇到一群猎物，就处于营养极乐世界。

About twelve, immense shoals of seaweeds came in sight.

大约十二个， 巨大的海藻浅滩映入眼帘。

Every solid object will reflect a sound, varying according to the size and nature of the object. A shoal of fish will do this.

任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。鱼群也反射声音。

And a shoal of other little fishes put their heads out, and laughed at Mr. Jeremy Fisher.

一群其他的小鱼探出头来，嘲笑杰里米费舍尔先生。

The Valkyria kept at some distance from the coast, taking a westerly course amidst great shoals of whales and sharks.

瓦尔基里亚号与海岸保持一定距离，在鲸鱼和鲨鱼的大群浅滩中向西行驶。

In fact, he and the cat were both on the side of the ship, watching a shoal of silvery fishes.

事实上，他和猫都在船边， 看着一群银色的鱼。

Why fish? because, he explains, the life of his tribal community depended on the shoals of mullet that swam into the local bay.

为什么是鱼？因为，他解释说，他的部落社区的生活取决于游入当地海湾的鲻鱼群。

" I suppose, " said Tom, " she cuts up a great whale like you into a whole shoal of porpoises" ?

“我想，”汤姆说，“她把像你这样的大鲸鱼切成了一大群海豚”？

They do, however, have a very special talent for using their noises to find their way about the oceans and to locate shoals of fish. This is a kind of sonar - an echo-location system.

然而，海豚确实有特殊的才能，可以利用它们发出的声音在大海里探路和确定鱼群的位置。这是一种声纳装置，一种回声定位系统。

Species like redeye piranhas are more solitary, while red-bellied piranhas form shoals of 10 to 100. Red-bellied piranhas are among the most popularly depicted and commonly regarded as especially aggressive.

像红眼食人鱼这样的物种更加独居，而红腹食人鱼则形成 10 到 100 只的鱼群。 红腹食人鱼是最常见的描绘对象之一， 通常被认为具有特别的攻击性。

She spoke very quietly; but there was something in her voice which made Tom tingle from head to foot, as if he had got into a shoal of sea-nettles.

她说话很轻。但是她的声音里有某种东西让汤姆从头到脚发麻，就好像他进入了一片海荨麻。

'Silly! ' said Taffy, and she stamped her foot, because she saw a shoal of very big carp going up the river just when her Daddy couldn't use his spear.

'愚蠢的！'塔菲说，她跺了跺脚，因为就在她爸爸不能使用长矛的时候，她看到一群非常大的鲤鱼逆流而上。

And, a week later, the sea around the Dragon Mountain -- which had previously been teeming with crabs and lobsters and shoals and shoals of fish -- was a great, underwater desert.

一周后，龙山周围的海域--以前盛产螃蟹、龙虾、浅滩和鱼群--变成了一片巨大的水下沙漠。

On the east side of the isle there was a large ridge of rocks which lay two miles from the shore, and a shoal of sand lay for half a mile from the rocks to the beach.

在岛的东面有一个巨大的山脊，这个山脊离海岸有两英里，山脊和海岸之间有半英里长的沙滩。