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Some Observations on the Behaviour of Cercaria doricha Rothschild, 1935

Published online by Cambridge University Press:  18 November 2009

K. N. Brown
Affiliation:
From the Department of Zoology, Imperial College of Science and Technology, London

Extract

The positions adopted by C. doricha Rothschild, 1985 during swimming and resting periods are described.

A sharp decrease in the amount of swimming carried on by the cercariae was shown to occur in the first few hours. A change of activity from long swimming and long resting periods to irregular swimming and resting was also demonstrated. The active life of these cercariae was found to be from two to three days.

The possible vertical distribution of C. doricha in the sea is tentatively discussed.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1954

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