Mesh selection and filtration efficiency of the Continuous Plankton Recorder
- 1 January 1994
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Plankton Research
- Vol. 16 (4) , 403-412
- https://doi.org/10.1093/plankt/16.4.403
Abstract
The filtration efficiency [volume filtered/(inlet aperture area × distance travelled through the water)] and retention of copepods by the Continuous Plankton Recorder (CPR) were measured in sea trials. Filtration efficiency was independent of tow speed (n = 14 trials, range of speeds 5–13 knots, F1.12 = 0.1, P = 0.73), but was influenced by the extent to which the body of the CPR was sealed. The retention of copepods on the silk filtering mesh routinely used in CPRs did not differ significantly from that predicted for a 270 μm nylon mesh and did not vary with tow speed.Keywords
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