Studies on the Lipids of Coastal Waters : I. General Composition of Lipids in Sea Water, Sediments and Suspensoids

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  • 沿岸水域の脂質に関連する研究 : I. 海水・底土・懸濁物中に含有される脂質の一般組成
  • 沿岸水域の脂質に関連する研究-1-海水・底土・懸濁物中に含有される脂質の一般組成〔英文〕
  • エンガン スイイキ ノ シシツ ニ カンレンスル ケンキュウ 1 カイスイ ソ

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Abstract

1. The lipid content of sea water and the sediment ranged from trace to 1.8 mg/l and from 0.9 mg/g to 2.6 mg/g, respectively. The lipid content was greater in the coastal waters than in the central area of Hiuchi Nada, and especially high at the area off Kawanoe and Kannonzi. 2. As the ester type of sterols was not detected and since the percentage of triglycerides was small in the lipids extracted from sea water, sediments and suspensoids, it is considered that the esterified compounds are hydrolyzed in the marine environment. The triglycerides were fewer in winter than in summer. 3. Considering the lipid class and the fatty acid composition, it is suggested that the decomposition of lipids was comparatively high in the bottom sea water, then in the surface sea water and sediments. 4. It is recognized that the suspensoids contain the lipids, however, the quality of the lipids is very different from that of marine organisms.

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