Poland - IOW
Poland - IOW
Poland - IOW
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Material and Methods 12<br />
taken on October 7 th at 08.05 marking the end of the dark incubation (from 15.45 till 08.05)<br />
and the start of the light incubation (from 08.05 till 16.30). At every sampling point 50 ml<br />
were taken from each chamber.<br />
Table 2.1: Samples taken during the different campaigns from groundwater lances (L), push<br />
pull lances along transects (T) benthic chambers (BC) and wells. The range of sampled<br />
sediment depths is given for all lances as well as the number of sampling days for the<br />
groundwater lances. *There were no samples available for February/March, but ammonium<br />
concentrations were provided by S. Vogler.<br />
Sampling<br />
Campaign<br />
L1<br />
depths<br />
(cm)<br />
Groundwater lances<br />
sampl.<br />
days<br />
L2<br />
depths<br />
(cm)<br />
sampl.<br />
days<br />
Nb.<br />
Transects<br />
T<br />
depths<br />
(cm)<br />
Sample<br />
V per<br />
port (ml)<br />
Sepember 2009 - - - x 4 to 24 2 - - - 100<br />
November 2009 x 4 to 28 1 - - - - - - 100<br />
Feb/March 2010* - - - x 4 to 28 2 - - - -<br />
May 2010 x 4 to 40 2 x 4 to 40 2 1 T1 to T4 5 to 30 100<br />
October 2010 x 4 to 28 2 x 4 to 28 3 2 T1 to T3 5 to 20 200<br />
T4 to T6 5 to 20 200<br />
Sampling<br />
Campaign<br />
Nb. of<br />
lances<br />
Baltic Sea side BC Wells<br />
depths<br />
(cm)<br />
Sample V<br />
per port<br />
(ml)<br />
Nb. of<br />
BC<br />
Sample<br />
V per BC<br />
(ml)<br />
3 m<br />
deep<br />
Sepember 2009 - - - - - - -<br />
November 2009 - - - - - - -<br />
Feb/March 2010* - - - - - - -<br />
May 2010 - - - - - x -<br />
October 2010 2 30 200 6 50 x x<br />
180 m<br />
deep<br />
All water samples were filtered and salinity and NH +<br />
4 concentration were measured<br />
immediately. Subsamples for NO x and DON concentration measurements as well as for the<br />
determination of δ 15 N in NH + 4 were stored frozen in PE bottles at -20°C. Water column<br />
samples were filtered on GF/F filters and stored frozen until analyses.