202
P.R. Nienhuis
1924 - 34
KOnig5hafen
19805
... Fucus
0 - - - -
1 km
Fig. 7.9. Distribution of mussel beds, Fucus vesiculosus and green algal mats (spp. of
Enteromopha, Chaetomorpha and Ulva) in Kiinighafen. 1924-34 From map of Nienburg
(1927) and partial maps and text notes in Wohlenberg (1937); 1980 s our own mapping
and aerial photographs. (Reise et al. 1989)
Wadden Sea around the island of Sylt are consistent with the assumption
that increased nutrient concentrations in the coastal waters have caused
an enrichment effect: (1) massive growth of green algal mats in sheltered
intertidal zones; (2) loss of red algae from the deeper bottoms; (3)
expansion of mussel beds in the intertidal zone and over the entire depth
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