Noldt site #1 (Grosser Stein), Sylt, North Sea    (Ref.: Noldt U 1986)

Noldt site #5 (Lister Tief Nr. 1), Sylt, North Sea    (Ref.: Noldt U 1986)

Noldt site #3 (Tonne westlich der Strandhalle), Sylt, North Sea    (Ref.: Noldt U 1986)

Sublittoral sample station #1 (Grosser Stein), Sylt    (Ref.: Noldt U 1989)

Sublittoral sample station #5 (Lister Tief (buoy 1)), Sylt    (Ref.: Noldt U 1989)

Sublittoral sample station #3 (buoy west of Strandhalle), Sylt    (Ref.: Noldt U 1989)

Eastern Scheldt (Oosterschelde ), Netherlands    (Ref.: Martens PM, Schockaert ER 1981)