Jökull - 01.01.2015, Blaðsíða 79

Marine climate variability from Arnarfjörður, NW Iceland
Species/taxon
Physical environmental
preferences/water mass
Microhabitat
preferences
Reference
Astrononion
gallowayi
Arctic, often in high-energy areas with
relatively stable salinity, glacier-distal
settings, modified Atlantic Water.
Epifaunal
Murray (1991), Polyak et al. (2002),
Jennings et al. (2004), Rytter et al.
(2002).
Buccella sp.
Cold to temperate waters, muddy
sediments, normal salinity, linked to
enhanced fluxes of food, seasonal sea ice
and coarser grained substrate.
Infaunal
Murray (1991), Hald and Steinsund
(1996), Korsund et al. (1995),
Polyak et al. (2002).
Cassidulina
reniforme
Arctic, glacial-marine, may also be
related to modified Atlantic Water in
glacier-distal settings, seasonal sea-ice
cover, muddy substrates.
Infaunal
Murray (1991), Polyak et al. (2002),
Hald and Steinsund (1996), Korsund
et al. (1995).
Cibicides
lobatulus
Cosmopolitan, high bottom-water
current velocity, coarse substrate, glacier-
distal settings, modified Atlantic Water.
Epifaunal
Murray (1991), Klitgaard-Kristensen
and Serjup (1996), Hald and
Steinsund (1996), Hald et al. (1999).
Elphidium
excavatum
Arctic, opportunistic species, glacial
marine, tolerates extremely cold and
unstable conditions.
Infaunal-
epifaunal
Feyling-Hansen (1972),
Hald and Korsund (1997), Korsund
and Hald (2000)
Quinqueloculina
stalkeri
Arctic, glacial marine environment, often
in relatively shallow waters.
Epifaunal
Murray (1991), Korsund and Hald
(2000), Korsund and Hald (1998).
Table 2. Environmental preferences of selected benthic foraminifera from Arnarfjörður. – Listi yfir algengustu
botngötungategundir í Arnarfirði og umhverfisaðstæður sem þær kjósa sér.
% % %% %%%
C
E
Figure 4. Foraminiferal abundances in core A2010-10-586. Shown here are seven species with the highest
abundance in the core. The different colors indicate different foraminiferal zones. – Sjö algengustu götunga-
tegundirnar úr Arnarfirði. Litirnir skipta kjarnanum upp í þrjú tímabil út frá breytingu á götungafánunni.
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