Microbiochemical Studies on the Oxygen Deficient Layer in Inland Fish-farm Water Regions

内陆养鱼场水域缺氧层的微生物化学研究

• 批准号: 61560241
• 负责人: KAWAI Akira
• 金额: $ 1.34万
• 依托单位: Kinki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61560241/
• 关键词: Fish farm water region; Oxygen deficient layer; Bottom sediment; Plant pigments in bottom sediment; Amino acid and sugar composition; organic acids; 底泥の糖組成; 低泥の有機炭素及び有機窒素; 底層水の低酸素化; 底泥中の糖組成; 底泥中の有機炭素及び有機窒素

One of the most undesirable environmental conditions infish-culturing inland Bays might be the formation of oxygen deficient layer in bottom water in summer saeason.Toward an aid of the solution of the problem,wetried to elucidate the mechanism of organic polution of bottom sediment in fish-farm inland bays,comparin with that in usual eutrophicated water regions. From the vertical distributions of plant pigments,organic carbon and nitrogen,organic acids,aminoacid and sugar composition of organic substances in the bottom sediment,etc.in the two kinds of organic poluted water regions,the following inference can be drawn from the results obtained in this study.Namely,even though the sea bottom of fish-culturing inland bays are subjected to heavy loads of organic suspended matter with high nitrogen content which is derived from remaining bait and fish excretion,organic polution of the bottom sediment in the water region may proceed by th processes 1) sedimentaion of organic suspended matter on the bottom surface 2) decomposition and mineralization in the water-bottom surface layer 3) eutrophication of sea water j) growth of phytoplanktion 5) sedimentation of dead bodies of phytoplanktion 6) organic polution of bottom sediment.

在夏季，在夏季，最不希望的环境条件之一可能是在夏季水中底部水中缺氧层缺乏层的氧气缺乏层。托有问题解决方案，旨在阐明旨在阐明鱼类内部托架中底部沉积物的机制机制，与我们在正常的嗜水水区中进行比较。从植物色素，有机碳和氮，有机酸，有机酸和糖组成的垂直分布中，底部沉积物中的有机物质的氨基酸和糖组成等。在两种有机的有机呈粘性水区域中，也可以从这项研究中获得的结果得出以下推论，即使在这项研究中获得的结果，即使是涉及的，即使是在含有的含有的源头的海洋范围内，也可以悬浮，而这些源是内陆的底部，而这些含量是构成的，而构成了源头的范围。从剩余的诱饵和鱼排泄中，可以通过过程进行底部沉积物的有机抗性1）底部表面上有机悬浮物的沉积物2）水底表面上的分解和矿化3）phytoplanktion periment phytopy phytopoppoplank phytopoplank phytoplank的富营养化物的富营养化。

项目成果

EGUCHI, Mitsuru, KITADA, Hideo and KAWAI, Akira: "On the Oligotrophic Bacteria in Inland Water Regions" Nippon Suisan Gakkaisi.

EGUCHI、Mitsuru、KITADA、Hideo 和 KAWAI、Akira：“论内陆水域的寡营养细菌”Nippon Suisan Gakkaisi。

来田秀雄,江口充,河合章: 日本水産学会誌.

Hideo Kurita、Mitsuru Eguchi、Akira Kawai：日本水产科学会杂志。

江口充,来田秀雄,河合章: 日本水産学会誌.

Mitsuru Eguchi、Hideo Kurita、Akira Kawai：日本水产科学学会杂志。