\u9759\u5ca1\u770c\u4e09\u4fdd\u534a\u5cf6\u306e\u5730\u4e0b\u6d77\u6c34\u3092\u7528\u3044\u3066\u7dd1\u85fb\u30b9\u30b8\u30a2\u30aa\u30ce\u30ea\u306e\u9678\u4e0a\u990a\u6b96\u8a66\u9a13\u30922003\u5e748\uff5e12\u6708\u306b\u8a66\u307f\u305f\u3002\u592a\u967d\u5149\u3092\u5149\u6e90\u3068\u3057\u30661\uff5e6\u9031\u9f62\u85fb\u4f53\u3092\u5bc6\u5ea6\u304c0.1g\/l\u306b\u306a\u308b\u3088\u3046\u306b500l\u304a\u3088\u30731, 000l\u306e\u5c4b\u5916\u30bf\u30f3\u30af\u8a086\u57fa\u306b\u53ce\u5bb9\u3057, 1\u65e5\u306b\u6c34\u69fd\u5bb9\u91cf\u306e3\u500d\u306e\u5730\u4e0b\u6d77\u6c34\u3092\u7d66\u6c34\u3057\u305f\u3002\u8a66\u9a13\u671f\u9593\u306f1\u9031\u9593\u3068\u3057\u305f\u3002\u65e5\u9593\u751f\u9577\u7387\u306f1\uff5e6\u9031\u9f62\u85fb\u4f53\u3067, \u305d\u308c\u305e\u308c35.8 (N=25) , 47.4 (N=26) , 44.5 (N=31) , 24.8 (N=18) , 18.5 (N=5) \u304a\u3088\u30734.9% (N=1) \u3067\u3042\u3063\u305f\u30024\u9031\u9f62\u306e\u4e00\u90e8\u30685\u9031\u9f62\u4ee5\u4e0a\u306e\u751f\u9577\u7387\u306f\u6210\u719f\u306b\u3088\u308a\u4f4e\u4e0b\u3057\u305f\u304c, 2\uff5e3\u9031\u9f62\u85fb\u4f53\u3067\u306f45.8%\u3068\u512a\u308c\u3066\u3044\u305f\u3002\u5730\u4e0b\u6d77\u6c34\u306e\u6c34\u6e29, \u5869\u5206\u304a\u3088\u3073pH\u306f, \u305d\u308c\u305e\u308c19.9\u00b10.2\u2103, 33.65\u00b10.06PSU\u304a\u3088\u30737.36\u00b10.2\u3067\u30b9\u30b8\u30a2\u30aa\u30ce\u30ea\u306e\u751f\u9577\u306b\u9069\u3057\u3066\u3044\u305f\u3002\u307e\u305f, \u6eb6\u5b58\u614b\u7121\u6a5f\u7a92\u7d20 (332.0\u00b164.5\u03bcmol\/l) \u304a\u3088\u3073\u30ea\u30f3\u9178\u5869 (0.71\u00b10.13\u03bcmol\/l) \u306e\u6fc3\u5ea6\u3082\u30b9\u30b8\u30a2\u30aa\u30ce\u30ea\u306b\u9069\u3057\u3066\u3044\u305f\u3002\u5730\u4e0b\u6d77\u6c34\u3092\u7528\u3044\u305f\u30b9\u30b8\u30a2\u30aa\u30ce\u30ea\u9678\u4e0a\u990a\u6b96\u306e\u9ad8\u3044\u53ef\u80fd\u6027\u304c\u793a\u5506\u3055\u308c\u305f\u3002<\/p>\n
Land-based cultivation of a green alga, Ulva prolifera, was tried by using the pumped saline groundwater at Miho Peninsula in Shizuoka, Japan, from August to December 2003. Fronds of 1 to 6-week-old were cultured in 6 outdoor tanks (500l or 1, 000l in volume) for a week at a turnover rate of three times a day under the sunlight. Initial frond density was 0.1g\/l. The daily growth rates of 1- to 6-week-old fronds were 35.8, 47.4, 44.5, 24.8, 18.5 and 4.9%, respectively. Although maturation caused relatively low growth rates of a part of 4-and all 5-and 6-week-old fronds, but those of 2-and 3-week-old fronds were 45.8%, higher than previous records. Saline groundwater had constant and suitable water temperature (19.9\u00b10.2°C), salinity (33.65\u00b10.08 PSU) and pH (7.36\u00b10.12) with suitable inorganic nitrogen (332.0\u00b164.5 p mol\/l) and phosphate (0.71\u00b10.13\u03bcmol\/l) . These revealed that saline groundwater is strongly recommended for the green algal culture.<\/p>\n","protected":false},"excerpt":{"rendered":"
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