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Responses of cirripede larvae to light. I. Experiments with white light (1973)

Crisp, D. J. ; Ritz, D. A.

Springer

Marine biology 23 (1973), S. 327-335

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ISSN: 1432-1793

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract The phototactic response of the nauplius larva of Balanus balanoides, B. crenatus and Elminius modestus shows darkadaptation; the response of the cyprid of B. balanoides shows both phototaxis and low photokinesis. The phototactic responses and the orientation of the cyprid to white light at settlement require an intensity of illumination slightly above 10-5 lux. The ability to select a shaded position by cyprids of R. balanoides requires a higher intensity of 10-2 to 10-4 lux; hence a different mechanism may be involved. Barnacle larvae are sufficiently sensitive to be able to respond to light beneath the sea surface, even on cloudy, moonless nights.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00389340

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