加州海洋热浪持续约六个月
2026-07-27 09:43:49
据《联合早报》援引法新社报道,美国加州沿海已持续约六个月出现海洋热浪,海面温度比正常水平高出3至4摄氏度;若叠加可能创纪录的厄尔尼诺现象,情况料进一步恶化。美国国家海洋和大气管理局数据显示,持续升温已促使鳀鱼和沙丁鱼下潜到更深海域,或向北迁移到较冷海域,跟随其移动的鲸鱼和海豚数量因此逐年减少。NOAA海洋学家莱辛说,海狮很快也将受到严重影响,高温还会促使有害藻华繁殖,污染鳀鱼和沙丁鱼,导致海狮生病甚至死亡。
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