发现512岁格陵兰鲨鱼!比莎士比亚还早出生...历经美国独立

▲这只陵兰鲨鱼,见证好几个世纪历史。(图/翻摄自Anglophone Tribune)

宠物中心综合报导

活过好几个世纪!哥本哈根研究所的生物学家尼尔森(Julius Nielsen)及其他生海洋物学家,在北大西洋发现一只高龄512岁的格陵兰鲨鱼,堪称最古老的活脊椎动物。活过好几个世纪的牠,历经了伽利略绘制宇宙图及美国独立时代,甚至比1564年出生的莎士比亚还早。

综合外媒报导,该研究小组发发现一只18英尺(约5.4公尺)的雌性格陵兰鲨鱼,并利用放射性碳定年法」,估算出512岁的高龄;虽然牠的确切存活时间还不得而知,但是当尼尔森(Julius Nielsen)完成他的「陵兰鲨鱼的博士论文」后,这消息重新浮出台面

据报导,特罗姆瑟大学- 挪威北极圈大学(UiT TheArctic University of Norway)的Kim Praebel教授发现,格陵兰鲨鱼的寿命可达到400年,但近期的研究证明,这种物种可以活的更久。通过测量格陵兰鲨鱼的大小后发现,牠可能早在1505年就已出生。

格陵兰鲨鱼称为快鲨灰鲨,平均年龄约是272岁,生长速度平均每年约1公分,而性成熟的年龄大约是134到156岁。科学家也发现,这头格陵兰鲨鱼没有猎食行为,但在牠的身体里发现,以鱼为主食外,还有驯鹿北极熊及马的遗体

尼尔森(Julius Nielsen)也表示,「这评估还有很多不确定性,即使是年龄最低的也活了272年,格陵兰鲨鱼仍然是科学界长寿脊椎动物。」

▼尼尔森(Julius Nielsen)IG上的格陵兰鲨鱼。

In exactly 1 hr and 7 minutes a satellite tag will pop-off from this Greenland shark female, it will float to the surface and establish contact with an Argos satellite. It will then transmit information on position as well as occupied temperatures the past 3 months. By tomorrow morning I will hopefully have the data which just can make it into my PhD before ending in four weeks. All of this (except handing in PhD in four weeks) will however only happen IF 1) the shark is not under sea ice (which would inhibit satellite transmission), 2) the sea is not too rough where the shark is which could lead to that the tag cap can’t be exposed properly in the air or 3) that the shark has not been deeper than 2,000 m which would have crushed the tag and destroyd it.... it also requires that there is no annoying animal eating the tag before we get the data which happened to us on a previous deployment. FINGERS CROSSED