Abundance and biomass of in- and epibenthic invertebrate macrofauna in the German Bight from 1969 to 2000

DOI

In order to examine the long-term development of offshore macrozoobenthic soft-bottom communities of the German Bight, four representative permanent stations (MZB-SSd, -FSd, -Slt, -WB) have been sampled continuously since 1969. Inter-annual variability and possible long-term trends were analysed based on spring-time samples from 1969 until 2000. This is part of the ecological long-term series of the AWI and is supplemented by periodic large-scale mapping of the benthos. The main factors influencing the development of the benthic communities are biological interactions, climate, food supply (eutrophication) and the disturbance regime. The most frequent disturbances are sediment relocations during strong storms or by bottom trawling, while occasional oxygen deficiencies and extremely cold winters are important disturbance events working on a much larger scale.Benthic communities at the sampling stations show a large inter-annual variability combined with a variation on a roughly decadal scale. In accordance with large-scale system shifts reported for the North Sea, benthic community transitions occurred between roughly the 1970ies, 80ies and 90ies. The transitions between periods are not distinctly marked by strong changes but rather reflected in gradual changes of the species composition and dominance structure.

Identifier
DOI https://doi.org/10.1594/PANGAEA.667646
Related Identifier References https://doi.org/10.1594/PANGAEA.965088
Related Identifier References https://doi.org/10.1016/0077-7579(90)90022-9
Related Identifier References https://doi.org/10.2312/BzPM_0494_2005
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.667646
Provenance
Creator Schröder, Alexander; Rachor, Eike
Publisher PANGAEA
Publication Year 2007
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Publication Series of Datasets; Collection
Format application/zip
Size 8 datasets
Discipline Earth System Research
Spatial Coverage (6.500W, 54.017S, 8.083E, 55.000N); German Bight, North Sea
Temporal Coverage Begin 1969-04-28T15:15:00Z
Temporal Coverage End 2000-04-11T15:25:00Z