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\u3053\u306e\u4e8b\u696d\u306e\u304d\u3063\u304b\u3051\u306f1969\u5e74\u306b Ryther \u304c\u767a\u8868\u3057\u305f\u8ad6\u6587\u3067\u3001\u4e16\u754c\u306e\u9b5a\u985e\u751f\u7523\u306e50%\u306f\u3001\u5168\u6d77\u6d0b\u9762\u7a4d\u306e\u50c5\u304b0.1%\u306e\u6df1\u5c64\u6c34\u304c\u6e67\u6607\u3059\u308b\u6d77\u57df\u3067\u3055\u308c\u3066\u3044\u308b\u3068\u3057\u3001\u3046\u885d\u6483\u7684\u306a\u4e8b\u5b9f\u3067\u3001\u3042\u3063\u305f\u3002\u4eba\u5de5\u7684\u306b\u6e67\u6607\u6d77\u57df\u3092\u3064\u304f\u308c\u306a\u3044\u304b\u3001\u69d8\u3005\u306a\u673a\u4e0a\u7814\u7a76\u3092\u7d4c\u30661995\u5e74\u306b\u4eba\u5de5\u6d77\u5e95\u5c71\u8108\u306e\u5b9f\u8a3c\u4e8b\u696d\u304c\u884c\u308f\u308c\u305f\u3002\u6804\u990a\u5869\u985e\u306e\u6e67\u6607\u306b\u3088\u308a\u57fa\u790e\u751f\u7523\u304c\u5897\u52a0\u3057\u3001\u6a19\u672c\u8239\u306b\u3088\u308b\u5bfe\u8c61\u6d77\u57df\u306e\u6f01\u7372\u91cf\u304c\u4e8b\u696d\u524d\u306e6\u500d\u306b\u5897\u52a0\u3057\u3001\u4eba\u5de5\u885b\u661f\u306b\u3088\u308b\u6d77\u8272\u306e\u89b3\u6e2c\u304b\u3089\u5468 \u8fba\u6d77\u57df\u306e\u30af\u30ed\u30ed\u30d5\u30a3\u30eba\u6fc3\u5ea6\u304c1.5\u500d\u306b\u5897\u52a0\u3057\u305f\u3002\u305f\u3093\u3071\u304f\u8cea\u306e60%\u3092\u6c34\u7523\u7269\u306b\u983c\u308b\u65e5\u672c\u3067\u3001\u6df1\u5c64\u6c34\u3092\u5229\u7528\u3057\u305f\u6c34\u7523\u8cc7\u6e90\u306e\u5897\u7523\u306f\u91cd\u8981\u306a\u30c6\u30fc\u30de\u3067\u3001\u3042\u308b\u3002<\/p>\n
Artificial under-seamounts were built as a public enterprise for increasing fisheries resources by enhancing primary productivity. This is due to mixing of rich nutrients in the bottom water to the euphotic zone and helped by tidal cu\u6c40ent. This challenge followed Ryther's classic paper(1969)suggesting that 50% of world fish is produced in the upwelling area occupying only 0.1 % of the world ocean.<\/p>\n
After long te\u30edn preparations\uff0c a public ente\u4e2drise constructing an under-seamount was undertaken in 1 995. The under -seamount enhanced primary productivity\uff0c increased the satellite detected surface chlorophyll a 1 .5 times in the area\u30e9and increased fish catch 6 times. Ocean fertilization is an important subject because 60% of total protein is supplied from fisheries products in Japan.<\/p>\n","protected":false},"excerpt":{"rendered":"
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