Novel method to determine vertical distributions of phytoplankton in marine water columns

The vertical distribution of phytoplankton in marine habitats has been determined using 20 submersible pumps which are lowered into the water column at equidistant intervals. The samples of 11 each are concentrated by centrifugation and the numbers of motile and non-motile organisms are counted usin...

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Bibliographic Details
Published in:Environmental and experimental botany 1995, Vol.35 (4), p.547-555
Main Author: Hader, D.P
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
cell counting
epifluorescence microscopy
fluorescence
Fluorescence microscopy
Fundamental and applied biological sciences. Psychology
image analysis
Marine
marine environment
phytoplankton
Sea water ecosystems
solar radiation
spatial distribution
submersible pumps
Synecology
vertical distribution
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Summary:The vertical distribution of phytoplankton in marine habitats has been determined using 20 submersible pumps which are lowered into the water column at equidistant intervals. The samples of 11 each are concentrated by centrifugation and the numbers of motile and non-motile organisms are counted using a computer-based automatic image analysis system developed for this purpose and based on epifluorescence microscopy. Typical examples of vertical distributions are shown for the North Sea, Baltic Sea and the Mediterranean Sea. During calm weather, pronounced bands of phytoplankton were observed; with high winds and waves the organisms were distributed in the water column.
ISSN:0098-8472
1873-7307
DOI:10.1016/0098-8472(95)00021-6