Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea
Conspicuous macrozoobenthos and vegetation of intertidal sandflats in Königshafen (Island of Sylt, SE North Sea) were mapped in 1932, 1988 and 2008. Higher water levels since the 1930s with a concomitant increase in tidal dynamics are assumed to have weakened sediment stability. This dissolved the d...
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Online Access: | https://epic.awi.de/id/eprint/35629/ https://hdl.handle.net/10013/epic.43575 |
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ftawi:oai:epic.awi.de:35629 2024-09-15T18:03:15+00:00 Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea Schumacher, Juliane Dolch, Tobias Reise, Karsten 2014-03 https://epic.awi.de/id/eprint/35629/ https://hdl.handle.net/10013/epic.43575 unknown Springer-Verlag Berlin Heidelberg Schumacher, J. , Dolch, T. orcid:0000-0001-6038-6695 and Reise, K. orcid:0000-0001-5003-6544 (2014) Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea , Helgoland Marine Research . doi:10.1007/s10152-014-0389-0 <https://doi.org/10.1007/s10152-014-0389-0> , hdl:10013/epic.43575 EPIC3Helgoland Marine Research, Springer-Verlag Berlin Heidelberg, ISSN: 1438-387X Article isiRev 2014 ftawi https://doi.org/10.1007/s10152-014-0389-0 2024-06-24T04:09:53Z Conspicuous macrozoobenthos and vegetation of intertidal sandflats in Königshafen (Island of Sylt, SE North Sea) were mapped in 1932, 1988 and 2008. Higher water levels since the 1930s with a concomitant increase in tidal dynamics are assumed to have weakened sediment stability. This dissolved the distinctly banded macrobenthic zonation of the 1930s. Near high water level, cyanobacterial mats with associated beetles, belts of the mudshrimp Corophium volutator and the seagrass Zostera noltii have vanished, while the range of the lugworm Arenicola marina has extended towards the shore. Near low water level, sandy elevations have become permanently submerged because a tidal creek has widened its bed. In 1988, extensive green algal mats and the almost complete absence of seagrass are attributed to peak eutrophication. This partially reversed until 2008. The mussel Mytilus edulis had strongly extended its beds along the creek in 1988. These were taken over by introduced Pacific oysters Crassostrea gigas in 2008. Also in 2008, the cordgrass Spartina anglica, another introduced species, grew into large tussocks where cyanobacterial mats and a Corophium-belt had been mapped in the 1930s. Former benthic patterns may have little chance of resurrection by conventional nature protection because these small-scale shifts represent responses to regional and global change. Article in Journal/Newspaper Crassostrea gigas Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Helgoland Marine Research 68 2 289 298 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Conspicuous macrozoobenthos and vegetation of intertidal sandflats in Königshafen (Island of Sylt, SE North Sea) were mapped in 1932, 1988 and 2008. Higher water levels since the 1930s with a concomitant increase in tidal dynamics are assumed to have weakened sediment stability. This dissolved the distinctly banded macrobenthic zonation of the 1930s. Near high water level, cyanobacterial mats with associated beetles, belts of the mudshrimp Corophium volutator and the seagrass Zostera noltii have vanished, while the range of the lugworm Arenicola marina has extended towards the shore. Near low water level, sandy elevations have become permanently submerged because a tidal creek has widened its bed. In 1988, extensive green algal mats and the almost complete absence of seagrass are attributed to peak eutrophication. This partially reversed until 2008. The mussel Mytilus edulis had strongly extended its beds along the creek in 1988. These were taken over by introduced Pacific oysters Crassostrea gigas in 2008. Also in 2008, the cordgrass Spartina anglica, another introduced species, grew into large tussocks where cyanobacterial mats and a Corophium-belt had been mapped in the 1930s. Former benthic patterns may have little chance of resurrection by conventional nature protection because these small-scale shifts represent responses to regional and global change. |
format |
Article in Journal/Newspaper |
author |
Schumacher, Juliane Dolch, Tobias Reise, Karsten |
spellingShingle |
Schumacher, Juliane Dolch, Tobias Reise, Karsten Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea |
author_facet |
Schumacher, Juliane Dolch, Tobias Reise, Karsten |
author_sort |
Schumacher, Juliane |
title |
Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea |
title_short |
Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea |
title_full |
Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea |
title_fullStr |
Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea |
title_full_unstemmed |
Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea |
title_sort |
transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay königshafen, northern wadden sea |
publisher |
Springer-Verlag Berlin Heidelberg |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/35629/ https://hdl.handle.net/10013/epic.43575 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
EPIC3Helgoland Marine Research, Springer-Verlag Berlin Heidelberg, ISSN: 1438-387X |
op_relation |
Schumacher, J. , Dolch, T. orcid:0000-0001-6038-6695 and Reise, K. orcid:0000-0001-5003-6544 (2014) Transitions in sandflat biota since the 1930s: effects of sea-level rise, eutrophication and biological globalization in the tidal bay Königshafen, northern Wadden Sea , Helgoland Marine Research . doi:10.1007/s10152-014-0389-0 <https://doi.org/10.1007/s10152-014-0389-0> , hdl:10013/epic.43575 |
op_doi |
https://doi.org/10.1007/s10152-014-0389-0 |
container_title |
Helgoland Marine Research |
container_volume |
68 |
container_issue |
2 |
container_start_page |
289 |
op_container_end_page |
298 |
_version_ |
1810440757919612928 |