Behavioral responses of sexually active mud snails: kariomones and pheromones.


Journal Article

We postulated that kariomones and pheromones function to organize egg capsule deposition and breeding aggregations of mud snails (Ilyanassa obsoleta). Sexually active male and female mud snails were exposed to water-born odors from juvenile snails, nonaggregated female snails, oysters, egg capsule depositing snails, sexually active males, sexually active females, and copulating snails and tested for a follow response using a ring assay. Neither sex responded to juvenile odor or to odor of sexually inactive females. Snails turned and followed water born odors from oysters, when tested with the odors of sexually active males, sexually active females, and copulating pairs, we found sex-specific differences in responses. Sexually active females followed the odor of sexually active males and ignored sexually active female odor. Sexually active males followed the odor of sexually active females and ignored sexually active male odor. Both sexes followed the odor of copulating pairs and egg capsule depositing snails. Snail activities in breeding aggregations are organized by at least three pheromones and one kariomone, and reflect the multifunctionality of the aggregations.

Full Text

Duke Authors

Cited Authors

  • Moomjian, L; Nystrom, S; Rittschof, D

Published Date

  • February 2003

Published In

Volume / Issue

  • 29 / 2

Start / End Page

  • 497 - 501

PubMed ID

  • 12737272

Pubmed Central ID

  • 12737272

Electronic International Standard Serial Number (EISSN)

  • 1573-1561

International Standard Serial Number (ISSN)

  • 0098-0331

Digital Object Identifier (DOI)

  • 10.1023/a:1022603728239


  • eng