Recent saltmarsh foraminiferal assemblages from Iceland

Lübbers, Julia and Schönfeld, Joachim (2018) Recent saltmarsh foraminiferal assemblages from Iceland Estuarine, Coastal and Shelf Science, 200 . pp. 380-394. DOI 10.1016/j.ecss.2017.11.019.

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Supplementary data:


This study reports for the first time boreal to subarctic intertidal foraminiferal assemblages from saltmarshes
at Borgarnes and Faskrudsfjördur on Iceland. The composition of living and dead foraminiferal
assemblages was investigated along transects from the tidal flat to the highest reach of halophytic plants.
The foraminiferal assemblages from Borgarnes showed 18 species in the total foraminiferal assemblage of
which only 7 species were recorded in the living fauna. The assemblages were dominated by agglutinated
taxa, whereas 3 calcareous species were recorded, of which only Haynesina orbicularis was found
in the living fauna. The distribution limit of calcifying species corresponds to the lower boundary of the
lower saltmarsh vegetation zone. Furthermore, calcareous tests showed many features of dissolution,
which is an indication of a carbonate corrosive environment. The species forming the dead assemblages
were mainly derived from the ambient intertidal areas and were displaced by tidal currents into the
saltmarsh. The foraminiferal assemblages from Faskrudsfjördur showed two species, of which only one
species was recorded in the living fauna. The assemblage was dominated by the agglutinated foraminifer
Trochaminita irregularis. The foraminiferal species recorded on Iceland were the same as commonly
found elsewhere in Europa. Since no species was found which is endemic to North America, Iceland is
considered part of the European bio province. The foraminiferal could have been immigrated to Iceland
from Europe through warm water currents, migratory birds or marine traffic since the last Ice Age.

Document Type: Article
Keywords: Intertidal; Foraminifera; Iceland; Saltmarsh; Halophytes
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Kiel University
Refereed: Yes
DOI etc.: 10.1016/j.ecss.2017.11.019
ISSN: 0272-7714
Date Deposited: 08 Jan 2018 10:50
Last Modified: 08 Jan 2018 10:50

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