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挪威研究船“海洋号”（REV Ocean）10月初到挪威的厄什塔外海探勘二战沉船，潜水队回程路上途经沿岸的鱿鱼孵化场时，意外发现一个巨大、似人类大小的透明球体，外壳甚至能被其中一位队员的手电筒强光穿透。拍下影片的研究人员拉施大赞此景是“一生一次的接触”。

科普网站《IFLScience》报导，这个透明球体是大西洋鱿（Illex coindetii）的卵鞘（egg sac）。拉施指出，当时它正在海面下约17公尺漂浮。潜水员靠近并用电筒照射它，可见凝胶状的表面物质内，有无数颗鱿鱼的卵，而中间的深色物质，相信是制造此巨型卵囊的雌性鱿鱼的墨。

大西洋鱿属于真鱿科（Ommastrephidae），由法国探险家于1837年发现，北至挪威、南到地中海都可见到它们的卵鞘踪迹，至今仍是人类的重要食物来源。维基百科纪录指出，雄性大西洋鱿体型长度平均约在18到20公分，雌性则在25到27公分。

报导指雌性大西洋鱿一整年都可产卵，依季节不同，产卵时间短到数天，长则持续数周不等。雌鱿卵巢和输卵管可容纳多达5万至20万个成熟卵，产下的卵鞘直径平均1公尺、最长可达2公尺，影片中的卵鞘大小则跟一个成年人差不多。在摄氏15度的水温中，胚胎发育时间在10至14天。孵化的幼年鱿鱼是活跃的“泳者”，能以喷射推进方式在海中穿梭。

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