Natural history and life history of the Grijalva gambusia Heterophallus milleri Radda, 1987 (Teleostei: Poeciliidae)

Rüdiger Riesch, Timothy J. Colston, Brandon L. Joachim, Ingo Schlupp

Research output: Contribution to journalArticlepeer-review


We report on basic natural history and life history data of the Grijalva gambusia Heterophallus milleri (Poeciliidae) from a small creek in Tabasco, southern México. Basic biology of H. milleri is similar to that of other members of the tribe Gambusiini. Insects make up at least part of H. milleri’s diet, the tertiary sex ratio was female-skewed, female H. milleri produced small offspring, one clutch at a time, relied predominantly on yolk for embryo provisioning (MI: 0.73), and male size was normally distributed.
Original languageEnglish
Pages (from-to)95-102
Number of pages8
Journalaqua, International Journal of Ichthyology
Issue number2
Publication statusPublished - 26 Apr 2011


  • life history
  • Poeciliidae
  • Heterophallus milleri
  • matrotrophy index
  • Mexico
  • maternal provisioning

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