www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
World
Home / World / Americas

Climate change alters global fishing landscape

Xinhua | Updated: 2013-05-17 13:26

VANCOUVER - Rising global temperatures are driving fish species towards cooler, deeper waters, making warm-water species increasingly dominant in global fisheries catches, a new Canadian study has found.

The study, conducted by researchers from the University of British Columbia and published in Nature this week, is the first of its kind to show that ocean warming has had a global impact on the composition of species caught by fishermen over the past four decades.

Previous studies indicated that some species are shifting location in response to temperature increases, with fish gradually moving away from the equator into cooler waters.

However, the new study showed that species from warmer waters have also been replacing those traditionally caught in many fisheries worldwide at least since 1970, according to the researchers.

"One way for marine animals to respond to ocean warming is by moving to cooler regions," ?said the study' s lead author William Cheung. ?"As a result, places like New England on the northeast coast of the US saw new species typically found in warmer waters, closer to the tropics."

These shifts could have several negative effects, including a large reduction in catch in the tropics, where water temperatures could exceed the preferences of many tropical species, the researchers said.

Additional impacts could include decreases in profits and jobs, conflicts over new fisheries that emerge because of distribution shifts, and food security concerns, particularly in developing countries, they said.

Most Viewed in 24 Hours
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 一个人免费看的www 一及 片日本 | 99久久国语露脸精品对白 | 亚洲最大激情中文字幕 | 欧美白人和黑人xxxx猛交视频 | 欧美一区视频在线 | 久久一二 | 男女视频免费看 | 日韩精品无码一区二区三区 | 欧美成人毛片一级在线 | 自拍偷拍亚洲视频 | 99在线观看巨臀大臀视频 | 色樱桃影院亚洲精品影院 | 国产精品久久久久久影院 | 欧美+日本+国产+在线观看 | 亚洲精品一区二区三区在线播放 | 看全色黄大色黄大片毛片 | 色吊丝在线观看国产 | 国产精品一区二区三区高清在线 | 性色午夜视频免费男人的天堂 | 亚洲黄色第一页 | 亚洲精品区在线播放一区二区 | 国产全部理论片线观看 | 成人免费视频在 | 日本一区二区三区四区不卡 | 在线观看欧洲成人免费视频 | 国产亚洲综合成人91精品 | 欧美激情一级欧美精品 | 美女美女大片黄a大片 | 日韩欧美成人乱码一在线 | 最新国产美女一区二区三区 | 亚洲欧美v视色一区二区 | 欧美综合自拍亚洲综合百度 | 日本在线看小视频网址 | 久在草视频| 5388国产亚洲欧美在线观看 | 亚洲一区二区三区首页 | 亚洲国产成a人v在线观看 | 国产一区二区三区日韩 | 在线免费国产 | 日本精品久久久久久久久免费 | 亚洲精品网址 |