Blue-Green algae agglomeration in surface water: a microbiotope of high bacterial activity

Hoppe, Hans-Georg (1981) Blue-Green algae agglomeration in surface water: a microbiotope of high bacterial activity Kieler Meeresforschungen - Sonderheft, 5 . pp. 291-303.

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Abstract

European Marine Biology Symposium. 15 1981 Abstract Mass accumulations of filamentous blue-green algae in surface waters of the Baltic Sea cause patches of high bacterial productivity within water masses of low microbial activity. Since these algae are apparently not grazed by zooplankton organisms, their degradation in the surface water layer is mainly due to associated bacteria. The network of algae filaments attracts a wide range of small organisms including rotifers, crustaceans, ciliates and flagellates, resulting in a microbiotope of considerable complexity. The succession of bacterial colonization of Nodularia spumigena and the activity state of the community was investigated by the INT-staining technique and by microautoradiography. The excretion rates of photosynthesized matter by the bluegreen algae agglomerates indicate a high rate of transfer of substrate towards the adherent heterotrophic bacteria. The fate and the final involvement of the agglomerates in the food chain are discussed.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-MI Marine Microbiology
Refereed: Yes
ISSN: 0023-1339
Date Deposited: 25 Apr 2018 07:21
Last Modified: 25 Apr 2018 07:21
URI: http://eprints.uni-kiel.de/id/eprint/42823

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