Acknowledgement All participants accomplished a big amount of work in a good temper and made the North Sea Summer Survey 2016 again a big success! Thank you very much to all of you! The help and professional good-humoured support of captain Antony Hobin and his crew is gratefully acknowledged. Holger Klein Aberdeen, August 26", 2016 Appendix 1: List of samples "CTD-Pprofiles with rosette: 103 stations Secchi depth: 36 stations (daylight stations only) Salinity: 279 samples Stations for radioactivity: ‘87 stations Oxygen: “129 samples & 10fold determination pH-value: 129 samples & 10fold determination Chlorophyll: 112 samples Nutrients: 20 extra samplings for validation of the nutrient analysers. Run time nutrient auto analyser: Silicate: 7 days, Nitrate/Nitrite: 19 days, Phosphate: 19 days, pH: 19 days 50 samples 22 45 samples 2 samples a 3 35-I-drums Caesium-137 and Strontium-90 (pure) 49 samples ä 2 35-I-drums Strontium-90 (pure) 51 samples ä 1-I-bottles Tritium (pure) 1 sample a 3 35-I-drums Plutonium and Americium (pure) 1 sample ä 600 | transuranics (pure) 89 samples ä 150 | Caesium-137 (concentrated) 10 samples ä 100 | KNIFC (concentrated) 1 sediment sample ä 2 cans Samarium and transuranics IS