Abstract
We studied the effect of exudates from trochophore larvae of the polychaeteHydroides dianthus on feeding in larval weakfish (Cynoscion regalis). Laboratory prey consisted ofH. dianthus trochophores and/or comparably sized rotifers (Brachionus plicatilis). When experiments were conducted in filtered seawater, ingestion of rotifers was always greater than ingestion of trochophores. However, consumption of rotifers was depressed when water fromH. dianthus cultures (=trochophore water) was the experimental medium. The same effect was noted whether we added trochophore water from polychaete cultures that were two or five days postfertilization. However, no effect was noted when we used water from rotifer cultures. We concluded thatH. dianthus trochophores release a water-soluble compound that inhibits feeding in weakfish larvae.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Connaughton, V.P. 1994. Selective feeding by larval weakfish,Cynoscion regalis: The influence of prey characteristics and larval behavior. PhD dissertation. College of Marine Studies, University of Delaware 152 pp.
Connaughton, V.P., andEpifanio, C.E. 1993. The influence of previous experience on the feeding habits of larval weakfish (Cynoscion regalis).Mar. Ecol. Prog. Ser. 101:237–241.
Connaughton, V.P., Epifanio, C.E., andThomas, R. 1993. Effects of varying irradiance on feeding in larval weakfish (Cynoscion regalis).J. Exp. Mar. Biol. Ecol. In press.
Costello, D.P., Davidson, M.E., Eggers, A., Fox, M.H., andHenley, C. 1957. Methods for Obtaining and Handling Marine Eggs and Embryos. Lancaster Press, Lancaster, Pennsylvania.
Dempsey, C.H. 1978. Chemical stimuli as a factor in feeding and intraspecific behavior of herring larvae.J. Mar. Biol. Assoc. U.K. 58:739–747.
Duffy, J.T., andEpifanio, C.E. 1993. The effects of larval density on the growth and survival of weakfish (Cynoscion regalis) in large-volume enclosures.Mar. Ecol. Prog. Ser. 104:227–233.
Goshorn, D.M., andEpifanio, C.E. 1991. Diet of larval weakfish and prey abundance in Delaware Bay.Trans. Am. Fish. Soc. 120:684–692.
Hunter, J.R. 1980. The feeding behavior and ecology of marine fish larvae, pp. 287–330,in J.E. Bardach, J.J. Magnuson, R.C. May, and J.M. Reinhart (eds.). Fish Behavior and Its Use in the Capture and Culture of Fishes. ICLARM Conference Proceedings 5, International Center for Living Aquaculture Resource Management, Manila, Philippines.
Iwai, T. 1980. Sensory anatomy and feeding of fish larvae, pp. 124–145,in J.E. Bardach, J.J. Magnuson, R.C. May, and J.M. Reinhart (eds.). Fish Behavior and Its Use in the Capture and Culture of Fishes. ICLARM Conference Proceedings 5, International Center for Living Aquaculture Resource Management, Manila, Philippines.
Lucas, J.S., Hart, R.J., Howden, M.E., andSalanthe, R. 1979. Saponins in eggs and larvae ofAcanthaster planci (L.) (Asteroidea) as chemical defenses against planktivorous fish,J. Exp. Mar. Biol. Ecol. 40:155–165.
Luckenbach, M.W., andOrth, R.J. 1990. A chemical defense in Crustacea?J. Exp. Mar. Biol. Ecol. 137:79–87.
Morgan, S.G. 1987. Morphological and behavioral antipredatory adaptations of decapod zoeae.Oecologia 73:393–400.
Pennington, J.T., andChia, F.S. 1984. Morphological and behavioral defenses of trochophore larvae ofSabellaria cementarium (Polychaeta) against four planktonic predators.Biol. Bull. 167:168–175.
Pryor, V.K., andEpifanio, C.E. 1993. Prey selection by larval weakfish (Cynoscion regalis): the effects of prey size, speed, and abundance.Mar. Biol. 116:31–37.
Rice, W.R. 1990. A consensus combined p-value test and the family-wide significance of component tests.Biometrics 46:303–308.
Scheltema, R.S., Williams, I.P., Shaw, M.A., andLoudon, C. 1981. Gregarious settlement by the larvae ofHydroides dianthus (Polychaeta: Serpulidae).Mar. Ecol. Prog. Ser. 5:69–74.
Theilacker, G.H., andMcMaster, M.F. 1971. Mass culture of the rotiferBrachionus plicatilis and its evaluation as a food for larval anchovies.Mar. Biol. 10:183–188.
Young, C.M., andBingham, B.L. 1987. Chemical defense and aposematic coloration in larvae of the ascidianEcteinascidia turbinata.Mar. Biol. 96:539–544.
Zar, J.H. 1984. Biostatistical Analysis, 2nd ed. Prentice-Hall, Englewood Cliffs, New Jersey.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Connaughton, V.P., Schuur, A., Targett, N.M. et al. Chemical suppression of feeding in larval weakfish (Cynoscion regalis) by trochophores of the serpulid polychaeteHydroides dianthus . J Chem Ecol 20, 1763–1771 (1994). https://doi.org/10.1007/BF02059897
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02059897