Modeling spatial distribution of the unionid mussels and the core-satellite hypothesis

Hooi Ling Lee, Donald DeAngelis, Hock Lye Koh

Research output: Contribution to journalConference articlepeer-review

17 Scopus citations


This paper discusses the spatial distribution patterns of the various species of the Unionid mussels as functions of their respective life-cycle characteristics. Computer simulations identify two life-cycle characteristics as major factors governing the abundance of a species, namely the movement range of their fish hosts and the success rate of the parasitic larval glochidia in finding fish hosts. Core mussels species have fish hosts with large movement range to disperse the parasitic larval glochidia to achieve high levels of abundance. Species associated with fish host of limited movement range require high success rate of finding fish host to achieve at least an intermediate level of abundance. Species with low success rate of finding fish hosts coupled with fish hosts having limited movement range exhibit satellite species characteristics, namely rare in numbers and sparse in distributions.

Original languageEnglish (US)
Pages (from-to)73-79
Number of pages7
JournalWater Science and Technology
Issue number7 pt 6
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 19th Biennial Conference of the International Association on Water Quality. Part 1 (of 9) - Vancouver, Can
Duration: Jun 21 1998Jun 26 1998


  • Aged-structure
  • Core-satellite
  • Ecological modeling
  • Environmental restoration
  • Fish-host
  • Mussel populations

ASJC Scopus subject areas

  • Water Science and Technology


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