Journal of Chemical Ecology

, Volume 25, Issue 10, pp 2247–2254

The Sesterterpene Variabilin as a Fish-Predation Deterrent in the Western Atlantic Sponge Ircinia strobilina

  • Rosângela De A. Epifanio
  • Rebecca Gabriel
  • Danielle L. Martins
  • Guilherme Muricy
Article

DOI: 10.1023/A:1020865606047

Cite this article as:
Epifanio, R.D.A., Gabriel, R., Martins, D.L. et al. J Chem Ecol (1999) 25: 2247. doi:10.1023/A:1020865606047

Abstract

The furanosesterterpene variabilin was identified in an unpalatable crude extract and proved to be a feeding deterrent when offered at 0.23% of artificial diet dry weight to reef fishes in field assays. The icthyodeterrent property of variabilin was expressed when food pellets for the palatability assays were made with calcium alginate, but not carrageenan. Variabilin probably failed to show deterrent activity in the carageenan matrix because of decomposition during the necessary heat treatment.

Ircinia strobilinaThorectidaeDictyoceratidaspongeBrazilsouthwest Atlanticvariabilinfuranosesterterpenesfeeding deterrencymarine chemical ecology

Copyright information

© Plenum Publishing Corporation 1999

Authors and Affiliations

  • Rosângela De A. Epifanio
    • 1
  • Rebecca Gabriel
    • 2
  • Danielle L. Martins
    • 1
  • Guilherme Muricy
    • 3
  1. 1.Departamento de Química OrgânicaInstituto de Química, Universidade Federal FluminenseNiterói, RJBrazil
  2. 2.Núcleo de Pesquisas de Produtos NaturaisUniversidade Federal do Rio de JaneiroRio de Janeiro, RJ, [ Brazil
  3. 3.Departamento de Invertebrados, Museu NacionalUniversidade Federal do Rio de JaneiroRio de Janeiro, RJBrazil