Foraminifera census counts at salt-marsch archive GeoHH-FK (Friedrichskoog, south-eastern North Sea)
Fuente:
PANGAEA
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867171872354861056 |
|---|---|
| author | Bunzel, Dorothea Milker, Yvonne Francescangeli, Fabio Schmiedl, Gerhard |
| author_facet | Bunzel, Dorothea Milker, Yvonne Francescangeli, Fabio Schmiedl, Gerhard |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Here we have evaluated and compared two benthic foraminiferal records derived from sedimentary salt-marsh archives from the south-eastern North Sea coast, covering the past ~100 years. The particular focus was on the agglutinated benthic salt-marsh foraminifera Entzia macrescens, finding a rising number of deformed tests at times of strengthened North Sea storminess and associated more frequent salt-marsh flooding between the mid-century and late 1980s. The study is based on sediment sequences GeoHH-FK (Friedrichskoog, Dithmarschen) and TB13-1 (Bay of Tümlau, Eiderstedt Peninsula; Müller-Navarra et al., 2019; doi:10.1016/j.ecss.2018.12.022) that were retrieved from the salt marshes' erosional cliffs in November 2016 and August 2013. Sediment sequence GeoHH-FK was sampled at 0.5 cm spacing, with every second sample considered for benthic foraminiferal analysis, resulting in a total of 116 samples. All samples were wet-sieved for the 63–500 µm sediment fraction and benthic foraminiferal analysis was based on allocate splits in order to obtain approximately 100 individuals per split. Subsequent taxonomical identification was carried out on the wet sediment samples. Normal and irregular tests of E. macrescens were distinguished and counted separately. The benthic foraminiferal record of TB13-1 was provided by Müller-Navarra et al. (2019; doi:10.1016/j.ecss.2018.12.022). As benthic foraminifera are very sensitive to environmental changes, the consideration of deformed tests of the salt-marsh indicator species E. macrescens allowed for the evaluation of the salt marshes' vulnerability to changing climate conditions, in dependence on the degree of their modification by human interventions. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_927336 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Foraminifera census counts at salt-marsch archive GeoHH-FK (Friedrichskoog, south-eastern North Sea) Bunzel, Dorothea Milker, Yvonne Francescangeli, Fabio Schmiedl, Gerhard Ammonia batava; Ammonia sp.; Balticammina pseudomacrescens; Bolivina spp.; Bolivinita sp.; Buccella cf. frigida; Bulimina sp.; Buliminella elegantissima; Cassidulina sp.; Cibicides sp.; Cibicidoides sp.; Coastal section; Counting 63-500 µm fraction; Cribroelphidium incertum; Cribroelphidium selseyense; Cribroelphidium williamsoni; CSEC; Depth, bottom/max; DEPTH, sediment/rock; Discorbis spp.; Elphidium excavatum subsp. clavatum; Elphidium spp.; Entzia macrescens; Eponides spp.; Foraminifera, benthic agglutinated indeterminata; Foraminifera, benthic hyaline, indeterminata; Foraminiferal organic linings; Friedrichskoog; GeoHH-FK; Germany; Globigerinidae; Globorotalia menardii; Guembelitria sp.; Gyroidinoides sp.; Haplophragmoides spp.; Haynesina depressula; Haynesina germanica; Hedbergella sp.; Laevidentalina filiformis; Lagena spp.; Lenticulina sp.; Lepidodeuterammina ochracea; Miliammina fusca; Miliammina petila; Nonion spp.; Oolina globosa; Paratrochammina haynesi; Patellina sp.; Planoheterohelix sp.; Polysaccammina sp.; Quinqueloculina sp.; Reophax sp.; Rosalina sp.; Saccammina sp.; Sample volume; Spirillina perforata; Split; Stainforthia fusiformis; Textulariidae; Trifarina angulosa; Trochammina inflata; Uvigerina sp. Here we have evaluated and compared two benthic foraminiferal records derived from sedimentary salt-marsh archives from the south-eastern North Sea coast, covering the past ~100 years. The particular focus was on the agglutinated benthic salt-marsh foraminifera Entzia macrescens, finding a rising number of deformed tests at times of strengthened North Sea storminess and associated more frequent salt-marsh flooding between the mid-century and late 1980s. The study is based on sediment sequences GeoHH-FK (Friedrichskoog, Dithmarschen) and TB13-1 (Bay of Tümlau, Eiderstedt Peninsula; Müller-Navarra et al., 2019; doi:10.1016/j.ecss.2018.12.022) that were retrieved from the salt marshes' erosional cliffs in November 2016 and August 2013. Sediment sequence GeoHH-FK was sampled at 0.5 cm spacing, with every second sample considered for benthic foraminiferal analysis, resulting in a total of 116 samples. All samples were wet-sieved for the 63–500 µm sediment fraction and benthic foraminiferal analysis was based on allocate splits in order to obtain approximately 100 individuals per split. Subsequent taxonomical identification was carried out on the wet sediment samples. Normal and irregular tests of E. macrescens were distinguished and counted separately. The benthic foraminiferal record of TB13-1 was provided by Müller-Navarra et al. (2019; doi:10.1016/j.ecss.2018.12.022). As benthic foraminifera are very sensitive to environmental changes, the consideration of deformed tests of the salt-marsh indicator species E. macrescens allowed for the evaluation of the salt marshes' vulnerability to changing climate conditions, in dependence on the degree of their modification by human interventions. |
| title | Foraminifera census counts at salt-marsch archive GeoHH-FK (Friedrichskoog, south-eastern North Sea) |
| topic | Ammonia batava; Ammonia sp.; Balticammina pseudomacrescens; Bolivina spp.; Bolivinita sp.; Buccella cf. frigida; Bulimina sp.; Buliminella elegantissima; Cassidulina sp.; Cibicides sp.; Cibicidoides sp.; Coastal section; Counting 63-500 µm fraction; Cribroelphidium incertum; Cribroelphidium selseyense; Cribroelphidium williamsoni; CSEC; Depth, bottom/max; DEPTH, sediment/rock; Discorbis spp.; Elphidium excavatum subsp. clavatum; Elphidium spp.; Entzia macrescens; Eponides spp.; Foraminifera, benthic agglutinated indeterminata; Foraminifera, benthic hyaline, indeterminata; Foraminiferal organic linings; Friedrichskoog; GeoHH-FK; Germany; Globigerinidae; Globorotalia menardii; Guembelitria sp.; Gyroidinoides sp.; Haplophragmoides spp.; Haynesina depressula; Haynesina germanica; Hedbergella sp.; Laevidentalina filiformis; Lagena spp.; Lenticulina sp.; Lepidodeuterammina ochracea; Miliammina fusca; Miliammina petila; Nonion spp.; Oolina globosa; Paratrochammina haynesi; Patellina sp.; Planoheterohelix sp.; Polysaccammina sp.; Quinqueloculina sp.; Reophax sp.; Rosalina sp.; Saccammina sp.; Sample volume; Spirillina perforata; Split; Stainforthia fusiformis; Textulariidae; Trifarina angulosa; Trochammina inflata; Uvigerina sp. |
| url | https://doi.org/10.1594/PANGAEA.927336 |