202
7 Eflects of the lee W Inter I 'J9S/')h
Table 7.5.1 Comparison of icc wintcr effects. Results were obtained at different sites In the East
Frisian Wadden Sea (ELA W AT) and in the North Frisian Wadden Sea close to the island of Sylt
(data of the Biologische Anstalt Helgoland. Sylt: Strasser pcrs. comm.). Mcroplankton was not
sampled at Norderney and Dornumcr Nacken.
Norderney
East Frisian coast
Dornumer Nackcn
Meroplankton (Bivalves)
Rank order of abundance
Temporal sequence of occurrence
Macrofauna
Localized extinction or population
Laniel' conehilega
Ceraslodenna edule
Nephtys hombergii
Phyllodoce macula/a
Harmothoc sarsi
Crangon crangon
Laniel' eOl1chilega
Ceras{odenna
edule
Nephtvs homiJergii
Malmgreniel/a
lunulata
Decline in intertidal abundance
Aphelochaeta
marioni
Capitella capitata
Heteromastus
filiform is
Hvdrobia UIVllC
Macoma balthica
Mya arenario
Sc%plos armiger
Tubificoides benedeni
Urothoc poseidollis
Nephtys cirrosa
Phyllodoce mucosa
Spiekeroog
I. Ensis americanus
2. Mya arenaria
My til us eduLis
Cerastoderma
eduLe
3. Macoma balthica
simultaneously
Lnniee (onchi/ega
Cerastoderma ed"le
Mytilus edulis
Capitella capitata
Mamma balthica
Nephtys hombergii
Phyllodoce maw lata
North Frisian coast
Sylt
I. Macoma baLthica
2. Ellsis amerieanus
3. Mya arellaria
MytiLus edulis
Cerastoderma
edule
I. Maeoma balthiea
2. Ensis americanus
Mya arenaria
Myti/us edulis
Cerastoderma
edule
3. Ensis americallus
Laniel' conehilega
Nephyts hombergii
Lepidochiton cinerea
Cerastoderma edule
Corophium
arenarium
Crangon crangoll
Mva arellaria