Acknowledgement 
All participants accomplished a big amount of work in a good temper and made the North 
Sea Summer Survey 2019 again a big success! Thank you very much to all of you! 
The help and professional good-humoured support provided by captain Antony Hobin and his 
crew is gratefully acknowledged. We all enjoyed the last nine summer cruises onboard Celtic 
Explorer and felt “home away from home”. 
ÄAalger Klein 
Hamburg, September 2019 
Appendix 1: List of samples 
"CTD-profiles with rosette: 
Oxygen: 
Chlorophyll: 
Total-N 
Total-P 
Trace metals: 
100 stations 
50 stations (daylight stations only) 
281 samples 
150 samples incl. 10fold determination 
242 samples incl. 10fold determination 
150 samples incl. 10fold determination 
81 samples incl. 10fold determination 
36 samples 
36 samples 22 
80 stations 
39 samples ä 2 35-I-drums strontium-90 (pure) 
30 samples ä 1-I-bottles tritium (pure) 
52 samples ä 100 I transuranic elements 
(concentrated) 
83 samples ä 150 | caesium-137 (concentrated) 
65 stations, 260 samples 
39