Analyzing multivariate flow cytometric data in aquatic sciences
Version of Record online: 8 MAR 2005
Copyright © 1992 Wiley-Liss, Inc.
Volume 13, Issue 3, pages 291–298, 1992
How to Cite
Demers, S., Kim, J., Legendre, P. and Legendre, L. (1992), Analyzing multivariate flow cytometric data in aquatic sciences. Cytometry, 13: 291–298. doi: 10.1002/cyto.990130311
- Issue online: 21 JUN 2005
- Version of Record online: 8 MAR 2005
- Manuscript Accepted: 17 AUG 1991
- Manuscript Received: 4 JAN 1991
- Multivariate analysis;
- flow cytometry;
- aquatic sciences
Flow cytometry has recently been introduced in aquatic ecology. Its unique feature is to measure several optical characteristics simultaneously on a large number of cells. Until now, these data have generally been analyzed in simple ways, e. g., frequency histograms and bivariate scatter diagrams, so that the multivariate potential of the data has not been fully exploited. This paper presents a way of answering ecologically meaningful questions, using the multivariate characteristics of the data. In order to do so, the multivariate data are reduced to a small number of classes by clustering, which reduces the data to a categorical variable. Multivariate pairwise comparisons can then be performed among samples using these new data vectors. The test case presented in the paper forms a time series of observations from which the new method enables us to study on the temporal evolution of cell types.