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濒临灭绝的鲸鱼数量下降接近 20 年来的最低点


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北大西洋露脊鲸是最稀有的海洋哺乳动物,2019年以来,该种群减少了近10%的数量,一组科学家和海洋生活的倡导者说。
北大西洋露脊鲸联盟昨天表示,2019 年北大西洋露脊鲸的数量仅为 366 头,其种群数量在 2020 年下降到 336 头。
该估计是近二十年来的最低数字。

露脊鲸曾经在新英格兰附近海域盛产,但在商业捕鲸时代,加上高浓度石油的海水,而使该类鲸鱼数量大量减少。


半个多世纪以来,它们一直被美国政府列为濒危物种。
近年来,鲸鱼死亡率高,繁殖能力差。
就在 2011 年,有超过 480 只。
斯科特克劳斯说,它们很容易受到渔具的致命缠绕和与大型船只碰撞,即使它们幸存下来,它们也会变得不那么健康,无法进食和交配。

“没有从事露脊鲸工作的人认为该物种无法从中恢复。如果我们停止捕杀它们并允许它们分配能量来寻找没有致命障碍的食物、配偶和栖息地,它们绝对可以从这种濒危状态中恢复过来。”先生克劳斯说。
露脊鲸在新英格兰和加拿大附近觅食和交配。然后他们在秋天旅行数百英里到乔治亚州和佛罗里达州附近的产犊场,然后在春天返回北方。

鲸鱼联盟由包括新英格兰水族馆在内的一组科学机构于 1980 年代中期创立,如今包括来自学术界、工业界、政府和其他地方的数十名成员。


负责监督和管理海洋问题的联邦政府部门国家海洋和大气管理局警告说,该组织的估计是初步的,尚未经过同行评审。


然而,该机构发言人艾莉森费雷拉表示,该机构与 斯科特克劳斯 一样担心露脊鲸的消失。
“北大西洋露脊鲸是地球上最危险的物种之一,最新估计表明,过去十年记录的露脊鲸数量大幅下降的轨迹仍在继续,”费雷拉女士说。
这种重达 61,235 公斤的鲸鱼几代以来一直是环保人士关注的焦点。


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