540
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
IiDLJI
I ~D m
Figure 6: Relative abundance (in %) of important diatom species and species groups in surface sediment samples
along the 74°30'N-transect (see Figure 4). The percent value at the bottom of each diagram indicates the portion
of these species and species groups of the total diatom content.
Fossula arctica: this diatom species was recently described by Hasle et al. (1996). In the
samples of the southern and middle transects Fossula arctica is present just in the western
region of the shelf (Figures 5 and 6). On the most northern transect this taxon also occurs in the
eastern region with a maximum abundance of 15% (Figure 7). According to Hasle et al. (1996)
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
IiDLJI
I ~D m
Figure 6: Relative abundance (in %) of important diatom species and species groups in surface sediment samples
along the 74°30'N-transect (see Figure 4). The percent value at the bottom of each diagram indicates the portion
of these species and species groups of the total diatom content.
Fossula arctica: this diatom species was recently described by Hasle et al. (1996). In the
samples of the southern and middle transects Fossula arctica is present just in the western
region of the shelf (Figures 5 and 6). On the most northern transect this taxon also occurs in the
eastern region with a maximum abundance of 15% (Figure 7). According to Hasle et al. (1996)