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。

However, old habits die hard, and the use of size limits is deeply ingrained in our collective fisheries management DNA.

但是，旧习难除，大小限制深深地扎根渔业管理者的 DNA 中。

Yes, and advising the government on fisheries legislation.

是的，并且建议政府对渔业立法。

They recognize the linkages between fisheries, food security, economic welfare and people's health worldwide.

他已经认识到渔业、食品安全、经济福利及全球人民健康之间的联系。

My Ministers will work to implement new regimes for fisheries, agriculture and trade, seizing the opportunities that arise from leaving the European Union .

大臣将把握脱欧进程中的机遇，致力于渔业、农业和贸易方面实施新政。

These engine rooms would soon be transformed to a new hybrid system, combining marine gas oil with electric battery packs, and even biogas, produced from organic waste from Norway's fisheries and forest.

这些发动机舱很快就会被改造为混合动力系统，把船用汽油与电池组，甚至与挪威渔业和森林中有机排泄物产生的沼气结合。

Even here in Mozambique where we don't even have a very aggressive fishery, we've seen the population collapse by up to about 98 percent over the last 15 years.

莫桑比克，那里甚至没有发达的渔业，但过去的15年里，到数量锐减了98%。

Our Pacific people are also dependent on crops, livestock, agriculture, fisheries, handicrafts for food security and income, and these sectors are also highly vulnerable to the impacts of climate change.

太平洋地区的人也依赖农作物、畜牧业、农业、渔业和手工业来实现粮食安全以及获得收入，而这些行业也极易受到气候变化的影响。

Yet despite their great importance, fisheries' health and sustainability are increasingly under threat.

然而，虽然渔业意义重大，但其健康可持续发展却持续受到威胁。

What we do see is that there's the cost of not intercepting plastic in a river is many, many times higher than if you were to intercept it, because it's damaging ecosystems, it's damaging tourism, it's damaging fisheries.

所到的是，不拦截河流中塑料的成本比拦截的成本要高很多很多倍，因为这些垃圾正破坏生态系统，破坏旅游业，破坏渔业。

According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) in a new fishery is reduced on average by 80% within 15 years of the start of exploitation.

根据他最近《自然》杂志上发表的文章，大型食肉的海洋 生物（一种捕杀猎食其它动物的生物）的总量 15 年的时间里已经减少了平均 80%。

And countries like Norway depend on the income that cod fisheries haul in.

而且挪威等国家依赖捕捞鳕鱼带来的收入。

Most fisheries are well below that, which is a bad way to do business.

大多数渔场远远低于这个数，这是对以后的捕鱼业非常不利的。

Brad Erisman is a fisheries ecologist at the University of Texas, Austin.

得克萨斯大学奥斯汀分校的渔业生态学家布拉德·埃里斯曼说道。

Daniel Pauly, a fisheries scientist at the University of British Columbia.

英国哥伦比亚大学的渔业学家丹尼尔·保利说道。

The Japanese fisheries agency set a quota for killing 227 whales every six months.

日本设定了每六个月捕杀227头鲸鱼的配额。

Our science libraries dedicated to health, environment, fisheries and oceans are being shut down.

致力于提供健康、环境、渔业和海洋教育的学图书馆正面临着关闭。

My dad was a fisheries biologist for the state.

父亲是该州的渔业生物学家。

For years Spain fudged its own fish catch numbers to protect the fishery business.

西班牙为保护本国渔业捏造自己的鱼类捕获数量已经有多年历史了。

The hope for conservation groups is that fishery bodies involve small fishers in the discussions.

环保组织希望渔业机构能让小渔民参与讨论。