Translocation

Japanese: 移殖 - いしょく

In the field of fisheries, the term "translocation" refers to the process of moving fish and shellfish that were not previously present or that are now in scarce supply from other bodies of water to grow and reproduce. There is also another term "release" which has essentially the same meaning but with a different emphasis on the expression, and it is often used interchangeably with "translocation" and "release". Translocation and release have been used for a long time as a positive method of increasing fishery resources, and have contributed greatly to fishery production in shallow coastal waters as well as rivers and lakes. Furthermore, there have been remarkable advances in the artificial production of seedlings and the raising of young fish in recent years, and the number of target species and their scale are increasing.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

水産業の分野では，従来そこにいなかったり，あるいは少なくなってしまった魚介類を他の水域から移して成長･繁殖させることを移殖と呼んでいる。また，表現の力点が違うだけで実質的には同じ内容を持つ語に放流があり，移殖･放流と重ねて使われることも多い。移殖･放流は水産資源の増殖をはかる積極的な方法として古くから行われ，河川湖沼はもちろん，沿岸浅海における漁業生産に大きく貢献してきた。さらに，最近は種苗の人工生産や稚仔の育成技術が著しく進歩し，対象種やその規模が増大しつつある。

出典　株式会社平凡社世界大百科事典第２版について　情報

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