...In addition, nori seaweed farming is actively carried out in Hyogo Prefecture, and kuruma shrimp farming in Yamaguchi Prefecture. While these fishing and aquaculture industries have developed, coastal industrial development and residential development have led to increased eutrophication of the ocean, leading to frequent red tides. In 1972, a Chattonella antiqua red tide occurred in the Harima Nada area, killing 14 million farmed yellowtail and causing damage worth 7.1 billion yen. Since around 1980, red tides have decreased somewhat, to about 200 cases per year. *Some of the terminology that mentions "Chattonella antiqua" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このほか,ノリ養殖は兵庫県で,クルマエビ養殖は山口県で活発に行われている。このような漁業・養殖業が発展する一方,沿岸の工業開発,住宅地化による海の富栄養化が進行して,赤潮が頻発するようになり,1972年には,シャトネラ・アンティーカChattonella antiquaの赤潮が播磨灘一帯で発生し,1400万尾の養殖ブリが死亡し,71億円の被害を生じた。80年ごろから赤潮はやや減少し,年間約200件程度の発生に落ち着いている。… ※「Chattonella antiqua」について言及している用語解説の一部を掲載しています。 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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