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  • Articles  (22)
  • Data  (47)
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  • 1
    Electronic Resource
    Electronic Resource
    Macrofauna standing stock of the Dogger Bank. A comparison: III. 1950–54 versus 1985–87. A final summary (1992)
    Springer
    Helgoland marine research 46 (1992), S. 137-169 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The macrofauna communities on the Dogger Bank in April/May 1985–87 were compared with those in April/May 1950–54 (Ursin, 1960). Unpublished data from Birkett on the central and western Dogger Bank from April/May 1952–54 were also used for the comparison. The changes in the communities from the fifties to the eighties were made clear by the increasing species numbers and in an increase or dominance of short-living opportunistic species. In contrast, a decrease in long-living bivalves was found. The total biomass in 1985–87 was 2.5 to 8 times higher than in 1950–54. Similarities between stations were below 20%. Some hypotheses concerning natural and anthropogenic impacts are given to interpret the observed changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02366052
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Macrobenthos composition, abundance and biomass in the Arctic Ocean along a transect between Svalbard and the Makarov Basin (1994)
    Springer
    Polar biology 14 (1994), S. 519-529 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Macrofauna has been sampled at 30 stations, at water depths of 1018–4478 m, along a transect extending between Northern Svalbard and the Makarov Basin, as a basis for understanding aspects of the benthic ecology of the Arctic Ocean. Species numbers, abundances and biomasses were extremely low, and generally varied between 0 to 11/0.02 m2, 0 to 850 individuals/m2, and 0 to 82.65 g/m2, respectively. A total of 42 species was found. The Amphipod Jassa marmorata was the most common species. Both numbers and biomasses of suspension-feeding species increased towards the Lomonosov Ridge, probably due to lateral transport of organic material by deep currents along the ridge.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238221
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    High benthic bacteria standing stock in deep Arctic basins (1994)
    Springer
    Polar biology 14 (1994), S. 423-428 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract During the Arctic Expedition ARK 8/3 (August to October 1991) with RV ’Polarstern‘ sediment samples from 13 staions with water depths of between 258 and 4,427 m were taken along a transect from the Barents Sea slope across the deep Arctic Eurasian Basins and the Gakkel Ridge to the Lomonosov Ridge to determine bacterial biomasses and organic carbon contents. Bacterial abundance dropped along the transect from 3.03 to 0.63×108 cells/cm3, and correspondingly bacterial biomass decreased from 17.35 to 3.43 μg C/cm3 sediment. Positve correlations were only found between total organic carbon concentrations of surface sediment layers and biomasses of small coccoid cells and small rods. The ridges and slopes seem to be sedimentation areas for the larger coccoid cells, presumably cyanobacteria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240263
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Lead and cadmium contents in selected macrofauna species from the Dogger Bank and the eastern north Sea (1987)
    Springer
    Helgoland marine research 41 (1987), S. 465-475 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Lead and cadmium concentrations were measured in the polychaetesNephtys hombergi andN. caeca, in the sea-urchinEchinocardium cordatum, and in the bivalveVenus striatula obtained from the Dogger Bank and the eastern North Sea. The cadmium concentrations determined in all four species from these areas were relatively equal, except for an increase in concentration found in those species from the northeastern part of the Dogger Bank. A lower lead content was generally observed in the individuals taken from the German Bight than in those from the Dogger Bank, especially from its northeastern part. In the case of lead, it is possible to divide the southern North Sea into three regions according to the different concentration levels by statistical treatment: the less contaminated German Bight, the more contaminated central Dogger Bank and the highly affected northeastern Dogger Bank. The results obtained contradict the prevailing opinion that offshore invertebrate populations are, in comparison to individuals from coastal regions, less affected by contaminants such as heavy metals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02365406
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    High abundance of Myriochele fragilis Nilsen & Holthe, 1985 (Polychaeta: Oweniidae) in the deep sea of the Eastern Mediterranean (2000)
    Springer
    Hydrobiologia 426 (2000), S. 97-103 
    Details
    ISSN: 1573-5117
    Keywords: Eastern Mediterranean Sea ; deep sea ; Oweniidae ; Myriochele fragilis ; high abundance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An exceptionally high abundance of Myriochele fragilis Nilsen & Holthe, 1985 (Polychaeta: Oweniidae) is reported for the Ierapetra Basin in the Eastern Mediterranean Sea from depths of 4159 and 4260 m, representing the first record outside the Norwegian and Arctic Sea and extending the depth range by more than 1600 m. Specimens are described and compared to closely related species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003947318925
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    Paper (German National Licenses)
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  • 6
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    Macrofauna data along a transect of four stations from the German Bight towards the Dogger Bank from 1990 to 2017 (2019)
    PANGAEA
    In:  Supplement to: Meyer, Julia; Kröncke, Ingrid; Riascos, José M (2019): Shifts in trait-based and taxonomic macrofauna community structure along a 27-year time-series in the south-eastern North Sea. PLoS ONE, 14(12), e0226410, https://doi.org/10.1371/journal.pone.0226410
    Details
    Publication Date: 2023-01-30
    Description: Current research revealed distinct changes in ecosystem functions, and thus in ecosystem stability and resilience, caused by changes in community structure and diversity loss. Even if benthic species play an important role in benthic-pelagic coupling e.g. through the remineralization of deposited organic material, the long-term variability of traits and functions is largely unknown. By using abundance and bioturbation potential of macrofauna samples, taken along a transect from the German Bight towards the Dogger Bank annually in May in 1990 and from 1995 to 2017, we analysed the taxonomic and trait-based macrofauna long-term community variability and diversity. Taxonomic and trait-based diversity remained stable over time, while three different regimes were found, characterised by changes in taxonomic and trait-based community structure. Min/max autocorrelation factor analysis revealed climatic variables, nitrite, and epibenthic abundance as most important environmental drivers for taxonomic and trait-based changes.
    Keywords: bioturbation; Macrofauna; south-eastern North Sea
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 7
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    Macrofauna abundance and biomass of four stations from the German Bight towards the Dogger Bank from 1990 to 2017 (2019)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Keywords: After Queirós et al. (2013); Area; bioturbation; Bioturbation potential, community; DATE/TIME; Event label; Latitude of event; Longitude of event; Macrofauna; Macrofauna, abundance; Macrofauna, biomass, wet mass; North Sea; NorthSea_DB9; NorthSea_GB2; NorthSea_GB5; NorthSea_OG7; south-eastern North Sea; STAT; Station; Station label; Taxa per area
    Type: Dataset
    Format: text/tab-separated-values, 546 data points
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    DATA PANGAEA
  • 8
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    Bioturbation potential of characteristic trait-groups of four stations from the German Bight towards the Dogger Bank from 1990 to 2017 (2019)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Keywords: Area; bioturbation; Bioturbation potential, community; DATE/TIME; Event label; Latitude of event; Longitude of event; Macrofauna; North Sea; NorthSea_DB9; NorthSea_GB2; NorthSea_GB5; NorthSea_OG7; south-eastern North Sea; STAT; Station; Station label; Trait
    Type: Dataset
    Format: text/tab-separated-values, 2476 data points
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    DATA PANGAEA
  • 9
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    Table 1 Abundance of bacteria and organic carbon content in surface sediment profile PS2157-7
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: ARK-VIII/3; AWI_Paleo; Bacteria, abundance; Carbon, organic, total; DEPTH, sediment/rock; Element analyser CHN, LECO; Giant box corer; GKG; Nansen Basin; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS19/150; PS19 ARCTIC91; PS2157-7; Quaternary Environment of the Eurasian North; QUEEN
    Type: Dataset
    Format: text/tab-separated-values, 4 data points
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    DATA PANGAEA
  • 10
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    Table 1 Abundance of bacteria and organic carbon content in surface sediment profile PS2159-7
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: ARK-VIII/3; AWI_Paleo; Bacteria, abundance; Carbon, organic, total; DEPTH, sediment/rock; Element analyser CHN, LECO; Giant box corer; GKG; Nansen Basin; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS19 ARCTIC91; PS2159-7; Quaternary Environment of the Eurasian North; QUEEN
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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