Issue Cover image

You need to login to your IAA account in order to access jounral PDFs.
Member Login

Freshwater Crayfish 12(1): 252-260 (1999)


Download: PDF (282 KB)

Feeding behaviour of the crayfish Procambarus mexicanus under laboratory conditions

Hernández-Muñoz S, Mejía-Ortíz LM and Viccon-Pale JA  e-mail link

Published Online:


This study contains results of research on the response of the crayfish, Procambarus mexicanus, to the presence of corn seeds, Zea mays, under laboratory conditions. The crayfish were observed using the focal sampling method for two hours every seven days over the course of a year. Their response included a basic sequence of patterns that can be categorised into the following stages: 1) alert, 2) searching, 3) grabbing the corn, 4) rotating and husking the corn, and 5) ingesting the kernel’s apex. This basic sequence is linear in the first series and, thereafter, becomes cyclical when it is reproduced, moving repeatedly between the second, third, and fourth stages. Most of the crayfish only nibbled the corn in the first consumption sequence. The complete consumption of the seed generally occurred in the second consumption sequence, very rarely in the third sequence, and in the fourth sequence only three animals completely consumed the seed apex. The averages of the three velocities with which the crayfish moved toward the corn kernels in the sequences 1, 2, and 3, are statistically different. Also, statistical data concerning frequencies and duration of the behavioural consumption patterns are presented in this paper.

Supplemental Documents

  • There are no supplementary documents for this article

CrossRef Logo

Cited By


How to Cite

Hernández-Muñoz S, Mejía-Ortíz LM and Viccon-Pale JA. (1999). Feeding behaviour of the crayfish Procambarus mexicanus under laboratory conditions. Freshwater Crayfish 12(1):252-260. doi:



Author Information

Authorship information for this paper are currently unavailable.


Publication History

   Manuscript Submitted:

   Manuscript Accepted:

   Published Online:

   Published in Print:



Funding Information

No specific funding statement is available for this article.






Member Login

Forgot Your Password?

Recover PW

Enter the e-mail address you used to
create your IAA account.
Return to Login
Back to Top