Hostname: page-component-788cddb947-tr9hg Total loading time: 0 Render date: 2024-10-19T17:29:06.505Z Has data issue: false hasContentIssue false

The Distribution of Settled Larvae of the Bryozoans Alcyonidium Hirsutum (Fleming) and Alcyonidium Polyoum (Hassall) on Fucus Serratus L.

Published online by Cambridge University Press:  11 May 2009

P. J. Hayward
Affiliation:
Department of Zoology, University College, Swansea
Paul H. Harvey*
Affiliation:
Department of Zoology, University College, Swansea
*
*Present address: School of Biological Sciences, University of Sussex.

Extract

The spatial settlement of marine invertebrate larvae is not a random process. The distribution of the adults of a particular species is influenced by the behavioural responses of the animal to a range of environmental stimuli which, in the case of many sessile invertebrates, result in the display of clear substrate selection. The role of habitat selection in determining the distribution of aquatic invertebrates has been the subject of a review by Meadows & Campbell (1972). The selection of algal substrata by the larvae of various intertidal species of Bryozoa has been demonstrated by Ryland (1959); among these, the ctenostomatous bryozoans Alcyonidium hirsutum and A. polyoum were shown to exhibit a strong preference for fronds of the alga Fucus serratus, an experi-mental result which accorded well with the distribution of the two species on the shore (Ryland, 1962).

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Conover, J. T. & Sieberth, J. McN., 1966. Effect of tannins excreted from phaeophyta on planktonic animal survival in tide pools. Proceedings of the Fifth International Seaweed Symposium, 99100. Pergamon Press.Google Scholar
Crisp, D. J., 1965. Surface chemistry, a factor in the settlement of marine invertebrate larvae. Proceedings of the Fifth Marine Biology Symposium, Botanica Gothoburgensia,3, 5165.Google Scholar
Crisp, D. J. & Meadows, P. S., 1962. The chemical basis of gregariousness in cirripedes. Proceedings of the Royal Society, B, 156, 500–20.Google Scholar
Crisp, D. J. & Williams, G. B., 1960. Effects of extracts from fucoids in promoting settlement of epiphytic polyzoa. Nature, London, 188, 12061207.CrossRefGoogle Scholar
Hayward, P. J., 1973. Preliminary observations on settlement and growth in populations of Alcyonidium hirsutum (Fleming). In: Living and fossil Bryozoa, Ed. Larwood, G. P., 107–13. London: Academic Press.Google Scholar
Hayward, P. J. & Harvey, P. H., 1974. Growth and mortality of the BryozoanAlcyonidium hirsutum (Fleming) onFucus serratus L. Journal of the Marine Biological Association of the United Kingdom 54, 677–84.CrossRefGoogle Scholar
Hayward, P. J. & Ryland, J. S., 1974. Growth, reproduction and larval dispersal inAlcyonidium hirsutum (Fleming) and some other Bryozoa. Pubblicazioni della Stazioni zoologica di Napoli (In Press).Google Scholar
Knight, M. & Parke, M., 1950. A biological study ofFucus vesiculosus L. and F. serratus L. Journal of the Marine Biological Association of the United Kingdom, 29, 439514.CrossRefGoogle Scholar
Kullback, S., 1959. Information Theory and Statistics, 395 pp. New York: Wiley.Google Scholar
Meadows, P. S. & Campbell, J. I., 1972. Habitat selection by aquatic invertebrates. Advances in Marine Biology, 10, 271382.CrossRefGoogle Scholar
Ryland, J. S., 1959. Experiments on the selection of algal substrata by polyzoan larvae. Journal of Experimental Riology 36, 613–31.Google Scholar
Ryland, J. S., 1962. The association between Polyzoa and algal substrata. Journal of Animal Ecology, 31, 331–8.CrossRefGoogle Scholar
Ryland, J. S. & Stebbing, A. R. D. (1971). Settlement and orientated growth in epiphytic and epizoic Bryozoans. In: Fourth European Marine Biology Symposium, Ed. Crisp, D. J., 105123. Cambridge University Press.Google Scholar
Sieberth, J. McN. & Conover, J. T., 1966. Antifouling inSargassum natans: recognition of tannin activity. Proceedings of the Fifth International Seaweed Symposium, 207. Pergamon Press.Google Scholar
Sokal, R. R. & Rohlf, F. J., 1969. Biometry. San Francisco: W. H. Freeman.Google Scholar
Stebbing, A. R. D., 1972. Preferential settlement of a bryozoan and serpulid larvae on the younger parts ofLaminaria fronds. Journal of the Marine Biological Association of the United Kingdom, 52, 765–72.CrossRefGoogle Scholar