That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.

这确有其事，因为理论告诉我们如果一个渔场的总储量如果连起初的最大可承受的捕鱼量的50％都不到，就应该降低捕鱼数量了。

To Buck it was boundless delight, this hunting, fishing, and indefinite wandering through strange places.

巴克非这样的安排, 打猎、捕鱼、在陌生的方无限期游荡。

The Australian authorities said objects so far recovered from the water were discarded fishing equipment.

澳大利亚局称到目前为止在水域发现的物体都是废弃的捕鱼设备。

We hope it will help to bring about more sustainable fishing practise.

我们希望这能有助于产生更多适的捕鱼行为。

The island government generates revenue through fishing license fees, the sale of postage stamps to collectors, and small-scale tourism when expedition ships stop by.

岛政府的收入来自捕鱼许可费、卖给收藏者的邮票，以及探险船靠时带来的少量旅游收入。

One reason for this is that fishing technology has improved.

一个原因是今天的捕鱼技术已经大大改善。

It does so with no free movement of people, no financial contribution, no requirement to follow most of the level playing field rules and no need to allow EU boats any access to our waters for fishing.

它这样做不会有才的自由流动，没有财政捐助，没有遵守多数公平竞争的规则，也没有必要允许欧盟船只进入我们的水域捕鱼。

To this day, the lake is an important source of fish for locals.

直到今天，该湖仍是捕鱼的重要来源。

Over fishing, shark poaching and the weak gene pool have all contributed.

过度捕鱼、偷猎及它们群内繁殖率低造成了现在的结果。

Some individuals would therefore not have been caught, since no baited hooks would have been available to trap them, leading to an underestimate of fish stocks in the past.

因此有一些鱼种没被抓到，往后没有鱼饵的鱼钩根本捕不到鱼，导致过去的捕鱼业受到轻视。

Growing up in a fishing family, I've always been interested in how things want to grow in the ocean, how productive the ocean can be and being a surfer, you become very aware of how powerful the ocean is.

我从小在一个捕鱼家庭长大，一直对海洋中生物的生长方式、海洋的生产力感兴趣，作为一名冲浪者，会非清楚海洋有多么强大。

And Who has commercial rights, such as fishing, in the waters surrounding those islands.

裁定了哪个国家在哪些海域，拥有捕鱼等经济权利。

The first step is where a fisherman catches the fish, then the regulator approves the fact that this was actually caught in Fiji, for example.

第一步就是渔夫捕鱼，然后，监管者确认了这个事件，例如，这条鱼是在斐济被捕到的。

A fishing team will be going out getting all of our lines rigged and ready to go and then we'll get the ship in position with the lift in the water.

一只捕鱼队会先出发为我们开路，之后我们驾驶着配有升降机的船到达那里。

But according to Amanda Vincent, a university professor and Rolex awards laureate, bottom trawling is still a danger to seahorses and she's working to protect them.

但根据大学教授、劳力士奖得主阿曼达·文森特的说法，海底拖网捕鱼对海马来说仍然是一种危险，她正在努力保护它们。

That's also from fishing, predators and disease, plus habitat changes.

它们的威胁也来自捕鱼、捕食者和疾病，再加上栖息的变化。

To get that fish to people's kitchens Monterey Bay Fisheries Trust is leveraging a $50,000 grant from east coast non-profit Catch Together to pay fishermen to do their job.

为了捕鱼，蒙特利湾渔业信托基金利用了东海岸非营利性组织Catch Together提供的5万美元补助金来支付渔民的工资。

Dangerous radioactive particles from the Fukushima Daiichi Nuclear Power Plant contaminated the environment as radiation seeped into the sea, leading authorities to prohibit fishing in several regions off the coast of Japan for more than a year.

来自福岛第一核电站的危险放射性颗粒随着辐射渗入海洋而污染了环境，导致日本沿海的几个区被局禁止捕鱼一年多。

As well as this, action needs to be taken to lower the levels of fishing quotas to prevent overfishing of endangered species.

除此之外，我们还需要采取行动降低捕鱼限额，以防止濒危物种被过度捕捞。

The further the fishermen are away from land, the more dangerous the task.

但是捕鱼的方，离开海岸越远，危险的系数就越高。