久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Environment

Expedition to study finless porpoises to be launched in Yangtze River

chinadaily.com.cn | Updated: 2017-10-24 15:32

Expedition to study finless porpoises to be launched in Yangtze River

File photo: a wild finless porpoise.[Photo provided by the Institute of Hydrobiology under the Chinese Academy of Sciences]


A scientific expedition to the Yangtze River to study wild finless porpoises and their habitats will be launched on Nov 10.

The 40-day expedition, which will be organized by the Ministry of Agriculture, will be conducted in the main stream of the middle and lower reaches of the Yangtze spanning from Yichang in Hubei province to Shanghai, as well as the river's large tributaries and the lakes of Dongting and Boyang.

Two scientific research vessels will set off from Wuhan, the capital city of Hubei province, on Nov 10 and the journey will cover approximately 3,400 kilometers.

Hao Yujiang, an associate research fellow at the Institute of Hydrobiology under the Chinese Academy of Sciences, said that visual observations and acoustic investigations will be conducted. Water samples, substrate sludge and sounds will be collected every 50 km along the river.

Unmanned aerial vehicles equipped with surveillance cameras will also be deployed to observe the habitats of finless porpoises, the most basal living member of the porpoise family.

A separate expedition in 2012 found that the population of the finless porpoises living in Yangtze had shrank to about 1,045, or 13.7 percent less than six years before.

Scientists said that the threats faced by finless porpoises include insufficient food, the use of illegal fishing tools, destruction of their habitats, water pollution and the construction of water conservancy projects that interrupt their migration channels.

During the 8th World Freshwater Dolphin Day on Oct 24, representatives from the World Wildlife Fund, China Wildlife Conservation Association and the Chinese Academy of Sciences attended a conference at the Shanghai Natural History Museum where they shared their experiences on the protection of these finless porpoises.

He Qi in Shanghai contributed to this story.

Previous 1 2 3 Next

Editor's picks
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: 日韩视频在线观看一区 | 国产一级做a爱片久久毛片a | 国产精品久久久久久麻豆一区 | 成人做爰网站免费看 | 香蕉久久国产 | 免费观看性欧美一级 | 日韩a毛片免费全部播放完整 | 日韩在线视频免费不卡一区 | 亚洲成人综合视频 | 日韩精品久久久免费观看夜色 | 国产视频高清在线 | 看真人视频一级毛片 | 欧美片欧美日韩国产综合片 | 精品国产成人a在线观看 | 中国一级大黄大片 | 亚洲成人一级片 | 亚洲影院在线 | 99精品福利视频在线一区 | 久久99亚洲精品久久久久99 | 久久精品一级 | 久久九九国产 | 亚洲综合网在线观看 | 在线亚洲精品国产波多野结衣 | 亚洲成年www | 99热com| 久久视奸| 94欧美setu | 国产成人在线播放 | 中文字幕一区2区 | 日本高清色本免费现在观看 | 亚洲一区二区三区精品影院 | 欧美午夜网 | 国产精品免费一区二区区 | 91精品国产欧美一区二区 | 亚洲精品区一区二区三区四 | 亚洲一区二区影视 | 亚洲美女性生活视频 | 日本韩国三级在线观看 | www中文字幕| 日韩精品视频免费在线观看 | 免费国产成人高清无线看软件 |