The microphytobenthos of Königshafen — spatial and seasonal distribution on a sandy tidal flat.

Asmus, R. M. and Bauerfeind, Ernst (1994) The microphytobenthos of Königshafen — spatial and seasonal distribution on a sandy tidal flat. Open Access Helgoländer Meeresuntersuchungen, 48 (2-3). pp. 257-276. DOI 10.1007/BF02367040.

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Abstract

A microphytobenthic species composition of a tidal flat in the northern Wadden Sea was analysed regarding cell numbers and biomass (in carbon units). The three sampling sites differed in tidal inundation from 15 cm to about 90 cm water depth at high tide. The sediment was sandy at all three stations. A cluster analysis revealed a separation of the benthic diatoms into three areas: aNereis-Corophium-belt, a seagrass-bed and theArenicola-flat. Small epipsammic diatoms were most abundant and dominated the microalgal biomass. A microphytobenthic “spring bloom” even started beneath the ice cover of the flat in January. Lowest values of cell numbers and biomass of benthic microalgae were found in summer. Highest values were measured in the uppermost area (Nereis-Corophium-belt), and only here was an autumnal increase of benthic microalgae found. Further cluster analysis within each of the three areas revealed seasonal differences although the majority of species were present all year round. Many species were most abundant in spring, and some showed a bimodal distribution (spring-autumn) in the year of investigation

Document Type: Article
Keywords: Biomass; Microalgae; High Tide; Bimodal Distribution; Tidal Flat
Research affiliation: OceanRep > Institute for Marine Science Kiel
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/BF02367040
ISSN: 0174-3597
Date Deposited: 22 Mar 2018 09:56
Last Modified: 22 Mar 2018 09:56
URI: http://oceanrep.geomar.de/id/eprint/42352

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