南非海域上演沙丁鱼群大逃亡奇观 Amazing feeding frenzy 沙丁鱼, 鲨鱼, 海豚

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Amazing feeding frenzy as sharks, dolphins and gannets gang up on a shoal of sardines
南非海域上演沙丁鱼群大逃亡奇观(图)


Swirling in panic thousands of silvery sardines flash past as they strive to escape  a horde of predators.
While a pod of dolphins chivy the fish into a 'baitball' from beneath, black-tip and tiger sharks marshall them upwards and ganets dive bomb them from above.


数百万条沙丁鱼正从南非好望角穿过寒冷的大西洋水域，朝位于亚热带的印度洋水域前进。




在每一年的6月和7月，沙丁鱼群都会准时在这里出现，成为一种令人莫名其妙的现象。沙丁鱼群“守时”精神的最大受益者自然是捕食者，它们知道自己又受到邀请，享受美味大餐。
The impressive natural phenomenon takes place every year in June and July off South Africa's coast


沙丁鱼在迁徙过程中往往是数百条结伴同行，它们会形成一个巨大的涡轮。为了摆脱位于食物链顶层的捕食者的“追杀”，它们还是改变队形。
As the sardines move in unison towards the surface a feeding frenzy breaks out, with the entire shoal obliterated in minutes.
The incredible spectacle occurs every year off the rugged east coast of South Africa.

Known as the Sardine Run, billions of fish migrate up the KwaZulu-Natal coast in search of tasty cold water zooplankton in June and July.



海豚、鲨鱼、鸟类甚至逆戟鲸都有自己的捕食策略，它们往往采用致命的伏击，围捕惊慌失措的沙丁鱼群。
Groups of dolphins, birds and blacktip and tiger sharks take part in a feeding frenzy

　　北京时间11月14日消息，据英国《每日邮报》报道，为了逃避一群天敌的袭击，成千上万只银色沙丁鱼惊恐地闪身游过。几只海豚从下面游入沙丁鱼群，黑鳍鲨和虎鲨上游捕食，塘鹅从上方俯冲下来追逐。
　　浩浩荡荡的沙丁鱼迁徙真可谓海边不容错过的自然奇观，自然也“吸引”了鲨鱼、海豚和其他捕食者的注意，一场捕食大战很快爆发了，霎时间整个浅滩陷入一片混乱。这就是著名的“沙丁鱼大逃亡”，是每年6、7月间鲨鱼为寻找冷水浮游动物在南非东部夸祖鲁-纳托尔海岸上演的一幕自然奇景。
　　沙丁鱼本能的集体移动是为了迷惑天敌，但是，有道是道高一尺，魔高一丈，它们的天敌也学会了团结合作，四面夹攻。这样的壮观场景曾经常发生在欧洲和美洲海洋中，但是，后来因长期捕捞沙丁鱼，这些海域已经很少能看到“沙丁鱼大逃亡”的壮美景观了。

The fish instinctively group and move together to try and confuse predators but their hunters have honed an impressive technique in which they work together as an unlikely team to pick them off.
Such events once took place regularly in the seas of Europe and the oceans of the Americas but these areas have long since been fished out of sardines.