Gray whale population drops by a quarter off West Coast

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Gray whale population drops by a quarter off West Coast

机译：灰色鲸鱼人口落后于西海岸四分之一

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Researchers say the population of gray whales off the West Coast of the United States has fallen by nearly onequarter since 2016, resembling a similar die-off two decades ago. In a paper released Tuesday, NOAA Fisheries reported that surveys counted about 6,000 fewer migrating whales last winter, 21,000 compared with 27,000 in 2016.

机译：研究人员称，自2016年以来，美国西海岸的灰色鲸鱼人口已经跌幅差不多，几十年前类似于类似的消亡。在周二发布的纸质中，Noaa渔业报告说，今年冬季的调查较少迁移鲸鱼较少，21,000人在2016年相比27,000。

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《Greenwire》 |2021年第21期|13-13|共1页
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1. NOAA to investigate spike in West Coast gray whale deaths [J] . Greenwire . 2019,第JUNa3期

机译：NOAA调查西海岸灰鲸死亡人数激增
2. NOAA to investigate spike in West Coast gray whale deaths [J] . Greenwire . 2019,第Juna3期

机译：Noaa在西海岸灰鲸死亡中调查尖峰
3. Gray whale (Eschrictius robustus) call types recorded during migration off the west coast of Vancouver Island. [J] . Burnham Rianna, Duffus David, Mouy Xavier Frontiers in Marine Science . 2018,第4期

机译：在温哥华岛西海岸迁徙期间记录的灰鲸（Eschrictiusrobustus）呼叫类型。
4. Research and Monitoring to Support Responsible Offshore Oil and Gas Development in the Presence of the Western Gray Whale Population off Northeast Sakhalin Island, Russia(PPT) [C] . Daniel E. Egging, Jennifer Dupont World Petroleum Congress . 2016

机译：在俄罗斯东北萨哈林岛的西灰鲸人口存在下，支持负责的海上石油和天然气开发的研究和监控俄罗斯（PPT）
5. Population structure and species relationships within Right whales (genus Eubalaena) and gray whales (genus Eschrichtius) based on molecular analysis and use of historical samples [D] . Gaines, Carl Amos, III 2008

机译：基于分子分析和历史样本的使用，右鲸（Eubalaena属）和灰鲸（Eschrichtius属）内的种群结构和物种关系
6. Correction: High mortality of blue humpback and fin whales from modeling of vessel collisions on the U.S. West Coast suggests population impacts and insufficient protection [O] . R. Cotton Rockwood, John Calambokidis, Jaime Jahncke -1

机译：更正：通过对美国西海岸的船只碰撞进行建模蓝鲸座头鲸和鳍鲸的死亡率很高这说明了人口影响和保护不足
7. Gray Whale (Eschrictius robustus) Call Types Recorded During Migration off the West Coast of Vancouver Island [O] . Rianna Burnham, David Duffus, Xavier Mouy 2018

机译：灰鲸（Eschrictius Robustus）呼叫类型记录在温哥华岛西海岸的迁移期间
8. Seasonal Gray Whales in the Pacific Northwest: An Assessment of Optimum Sustainable Population Level for the Pacific Coast Feeding Group. [R] . Punt, A. E., Moore, J. E. 2013

机译：太平洋西北地区的季节性灰鲸：对太平洋沿岸饲养群最佳可持续人口水平的评估。

Gray whale population drops by a quarter off West Coast

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