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伦敦泰晤士河发现有毒鲨鱼


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伦敦著名的河流比我们想象的更令人兴奋。“健康检查”的结果显示,海马、鳗鱼、海豹——以及有毒的鲨鱼——都在泰晤士河中被发现。
该协会周三表示,伦敦动物学会 (ZSL) 的一项调查揭示了野生动物和生态系统恢复的“积极消息” 。
早在 1957 年,首都的河流就被宣布为“生物死亡”。

但是现在,已经发现了一些令人惊讶的生物,例如鲨鱼,包括鲨鱼、星光猎犬和刺猬——一种长约 58 厘米、覆盖着有毒刺的细长鱼。
Spurdogs可以在深水中找到,鲨鱼两个背鳍前面的刺会分泌一种毒液,可以引起人类的疼痛和肿胀。

以鱼类和甲壳类动物为食的大头鲨可达 1.8 米,重达 48 公斤。
据英国野生动物信托基金会称,该物种从未对人类发起过无端攻击。

同时,星光猎犬的体长可达1.2米,重达11公斤,主要吃甲壳类、贝类和软体动物。
然而,在河流潮汐区发现的鱼类数量略有下降,保护科学家警告说,需要进一步研究以了解原因。
ZSL 警告说,这条 346 公里长的河流拥有超过 115 种鱼类和 92 种鸟类,面临污染和气候变化威胁。

这条河还为周围社区提供饮用水、食物、生计和防止沿海洪水的保护。
ZSL 表示,气候变化使泰晤士河的温度平均每年增加 0.2 摄氏度,并警告说,当与海平面上升相结合时,这“描绘了一幅令人担忧的画面”。

自 1911 年泰晤士河潮汐段开始监测以来,水位一直在上升,自 1990 年以来,在某些点上平均每年上升 0.43 厘米。
ZSL 在一份声明中警告说:“随着水温和海平面继续上升到历史基线以上,河口的野生动物将受到特别影响,因为物种的生命周期和范围发生了变化。”

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