1904年。年轻的丹麦海洋学家兼生物学家乔纳斯·施密特在丹麦研究船“托尔”号上找到一份工作，研究食用鱼(如鳕鱼和鲱鱼)的繁殖习性。
In 1904 Johannes Schmidt, a young Danish oceanographer and biologist, got a job aboard the Thor, a Danish research vessel, studying the breeding habits of food fishes such as cod and herring.
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