Use of a Self-Cleaning, In-line Filter to Continuously Monitor Phytoplankton Nutrient Uptake Rates
- 1 March 1984
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Fisheries and Aquatic Sciences
- Vol. 41 (3) , 540-544
- https://doi.org/10.1139/f84-067
Abstract
Our new technique allows the decline in ambient ammonium concentration to be followed continuously during phytoplankton uptake experiments. A self-cleaning, in-line filter permits the continuous separation of cells from the medium for nutrient determination by an autoanalyzer. The technique works well with laboratory cultures of the marine diatoms Thalassiosira pseudonana and Skeletonema costatum. Changes in uptake rate on time scales of 1 min or longer can be resolved, the resolution being limited by the response characteristics of the autoanalyzer.Keywords
This publication has 5 references indexed in Scilit:
- Comparative rapid ammonium uptake by four species of marine phytoplankton1Limnology and Oceanography, 1982
- The rapid response of the marine diatom Skeletonema costatum to changes in external and internal nutrient concentrationMarine Biology, 1979
- Use of the perturbation technique to measure nutrient uptake rates of natural phytoplankton populationsDeep Sea Research, 1977
- Marine diatoms grown in chemostats under silicate or ammonium limitation. II. Transient response of Skeletonema costatum to a single addition of the limiting nutrientMarine Biology, 1976
- A fine structural study ofOlisthodiscus luteuscarterBritish Phycological Journal, 1969