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A note on the barnacle larvae of the Clyde Sea Area as sampled by the Hardy Continuous Plankton Recorder

Published online by Cambridge University Press:  11 May 2009

H. Barnes
H. Barnes
Affiliation:
The Marine Station, Millport
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Extract

A series of results is presented on the barnacle larvae population of an area of the Firth of Clyde, over a 15-day period in the spring taken by means of a modified Hardy Plankton Recorder.

The records and observations on barnacle settlement indicate that the larval population was considerably greater than usual.

The total larval population showed no great fluctuations from day to day, and on a given day the composition of the population over a wide area was often reasonably constant.

Evidence is presented that there is no great depletion of the population between Nauplius III and cyprid stages. It is suggested that the depletion previously reported may be due in part to the method of sampling or to the conditions at the time of sampling.

During the time when the evidence indicates no depletion of population there was a heavy diatom outburst, which in this instance did not appear to interfere with the larval development.

Data are given on the density of settlement.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 29 , Issue 1 , April 1950 , pp. 73 - 80
Copyright
Copyright © Marine Biological Association of the United Kingdom 1950

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References

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