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VOA慢速英语[农业报道]捕鱼业背后的危机

2016-03-25    来源:普特英语听力    【      美国外教 在线口语培训
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The amount of fish being caught worldwide is much larger than has been reported.

And that could mean serious problems for the environment and nations that depend on fisheries.

A new estimate places the world fish catch at 109 million metric tons. That is 32 million tons higher than the yearly totals governmentes have been reporting.

The same report notes that the world’s fish catch has been shrinking since the late 1990s.

Countries report their industrial catches to the United Nations Food and Agriculture Organization. But they do not report other kinds of fishing. These include the catches of small commercial fisheries, what are called artisanal fisheries, and fishing for recreation and individual food.

Daniel Pauly at the University of British Columbia in Canada led the study. He noted that a huge amount of some catches is thrown away.

“For example, shrimp trawlers retain only the shrimp and the fish that they catch – often eight to 10 times as much as the shrimp – gets thrown away.”

Pauly told VOA that better estimates of the actual global catch will help ensure there will be enough fish in the future.

“…But our figures suggest that since '96 a rapid decrease is happening. And if you project this forward you end up in a few decades having much less catch, literally no catch. So that is potentially dangerous.”

The online journal Nature Communications published the report Tuesday. 

Researchers also found ways the world’s fisheries are changing. They found that fishing fleets of larger nations are catching fish in the waters of developing countries more and more.

Pauly said he was surprised by the amount of fishing done by foreign fleets in competition with local fishers.

“In West Africa, the figure that was most astonishing is the enormous role of foreign fishing – of European and Asian vessels fishing legally or illegally – and competing against local fishers. On the other hand for the U.S., Australia and some developing countries, such as the Bahamas, what was apparent is the enormous contribution of recreational fisheries, which also never get reported to the FAO.”

Researchers say inaccurate data also harms the development and supervision of effective policy and management measures.

I'm Mario Ritter.


全球捕鱼数量远比所报道的数量多。

这就意味着环境和依赖捕鱼的国家有很严重的问题。

一项新的估计显示,世界范围内的捕鱼量达到了1.09公顷。比每年政府报道的捕鱼总量高3200万吨。

 同样有报道指出,从二十世纪九十年代起,全球捕鱼量已经开始下降了。

很多国家向联合国食品工业组织上报了本国的工业捕鱼量,但是没有上报其他形式的捕鱼。这包括了所谓的手工渔场的小型商业捕鱼量,以及用作娱乐和个人粮食的捕鱼量。

Daniel Pauly是加拿大英属哥伦比亚大学的教授。他表示,一些形式的捕鱼被大量的丢弃了。

“比如拖网虾只保留他们捕获的虾——被丢弃的鱼大约为虾的8-10倍多。”

Pauly告诉美国之音,精准的估计全球实际捕鱼量将会有助于保证未来有充足的渔业资源。

“……但是我们的数据显示,自1996年开始,捕鱼量开始急剧下降。如果按照这个趋势,捕鱼量将在未来几十年里好像是更少了。所以这具有潜在危险。”

在线期刊《自然通讯》在周二刊登了这份报告。

研究人员还发现,世界渔业的捕鱼方式在改变。他们发现,大国的捕鱼船队越来越多的在发展中国家的水域里捕鱼。

Pauly对当地捕鱼竞争的外国船队捕鱼量感到震惊。

“在西非,最令人惊讶的数据就是外国捕捞所占的比例——都是欧洲和亚洲来的大船,合法的非法的都有——和当地渔民竞争。对美国,澳大利亚和其他发展中国家而言,像巴哈马群岛,很明显的就是休闲娱乐性的捕捞量最大,这些数据根本没有报告给联合国粮农组织。

调查人员说,不准确的数字对有效政策和管理措施的发展和调查都有害。
 



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