Why do POC concentrations measured using Niskin bottle collections sometimes differ from those using in-situ pumps?

Autor: Liu, Zhanfei, Stewart, Gillian, Kirk Cochran, J., Lee, Cindy, Armstrong, Robert A., Hirschberg, David J., Gasser, Beat, Miquel, Juan-Carlos
Zdroj: In Deep-Sea Research Part I 2005 52(7):1324-1344
Databáze: ScienceDirect