Bundesanstalt für Gewässerkunde (BfG), Koblenz 
(Federal Institute of Hydrology) 
Biological long-term study (sublittoral macrozoobenthos) of the German North Sea estuaries 
GOOS related activity 
Module 
Research / 
operational 
Measuring data / products 
Users 
Measuring techniques 
Investigations into the composition of 
sublittoral macrozoobenthos 
3 
Operational 
Macrozoobenthos data: 
Species spectrum, abundances and 
biomass 
Sediment data: 
Loss on ignition 
Official and scientific publications, 
information and expert opinions 
BLMP, authorities 
Sampling at 27 sublittoral stations 
in the Ems, Jade, Weser, Elbe, and 
Eider estuaries; at each station, 3- 
6 van Veen grabs and 1 dredge 
dip. 
Macrozoobenthos: sieve 0.5 mm 
mesh size; classification, 
counting, drying, ashing, loss on 
ignition: subsamples from grab, 
drying and ashing 
0-6