On the Scattering and the Attenuation of Light in the Sea Water

Abstract. Determination of low molecular weight carbohydrates in marine environments indicated that 1-O-fl-Dgalactosylglycerol, 6-O-c~-D-galactosyl-l-O-fi-D-galactosylglycerol, sucrose, laminaribiose and laminaritriose are widely distributed in seawaters, suspended and sinking particles, and sediments in coastal as well as in deep-sea waters [e.g. Mikawa Bay and Sagami Bay, Kumano Nada (offshore Japan), and northwest North Pacific Ocean, Bering Sea and Antarctic Ocean: collections during [1978][1979][1980][1981][1982][1983][1984]. Identification of these glycosylglycerols and o!igosaccharides in algal cells such as a flagellate (Olisthodisus luteus), blue-green algae (e.g. Trichodesmium sp.) and a diatom (Reptocylindrus denicus) strongly suggests that these sugars are photosynthetically produced by algae in the euphotic zone and are then rapidly transported to the deep sea as sinking particles which can be collected by sediment-trap experiments. The rapid decay rate of low molecular weight carbohydrates by microorganisms suggests that the transported sugars provide energy substrates for microorganisms living in the deep sea.

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On the Scattering and the Attenuation of Light in the Sea Water

Abstract: The scattered light in the directions of 45•‹, 90•‹ and 135•‹ and the attenuated light were

Cited by 12 publications

References 5 publications

Organic Material in Sea Water

Organic Material in Sea Water

Impact of nutrient enrichment in a waterchestnut ecosystem at Takahama-iri Bay of Lake Kasumigaura, Japan

Distribution of glycosylglycerols and oligosaccharides in the marine environment and their ecological significance in the deep sea

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