|Zooplankton grazing methods using radioactive tracers: technical problems|
Gulati, R.D. (1985). Zooplankton grazing methods using radioactive tracers: technical problems. Hydrobiol. Bull. 19(1): 61-69
In: Hydrobiological Bulletin. Netherlands Hydrobiological Society: Amsterdam. ISSN 0165-1404, more
Food intake; Food intake; Grazing; Ingestion; Measurement; Radioactive labelling; Zooplankton; Marine
Some of the technical problems specific to the application of radiotracer techniques for measuring grazing of zooplankton are highlighted and, in some cases, the corrective measures suggested. The major drawbacks of measuring zooplankton grazing in the laboratory, for studying the role of zooplankton in nature, namely, changes in water temperature and light and heavy mortality of some cladocerans, are overcome by the use of in situ grazing chambers. However, at present there are no suitable techniques available to measure short-term assimilation rates which usually suffer from the respiratory loss during the experiment of the assimilated radiotracer.