Issue Cover image

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

Freshwater Crayfish 15(1): 36-47 (2006)

PEER REVIEWED    RESEARCH ARTICLE

Download: PDF (788 KB)

Effects of vegetation and soil on the survival of juvenile Procambarus clarkii and P. zonangulus in interspecific and intraspecific contests

Konikoff M, Huner JV and Guilmet DM  e-mail link

Published Online:

Abstract

Survival of confined pairs of unfed, size-matched, juvenile red swamp, Procambarus clarkii, and white river, P. zonangulus, crayfish in 78-mm laboratory bowls over 21 days was measured using Kaplan-Meier survival analyses. Sex had no significant effect on survival of juveniles in either species. Overall, P. zonangulus were more aggressive than P. clarkii, but there were significant substrate effects. In dishes without substrates P. clarkii survived significantly longer in intraspecific contests and significantly shorter in interspecific contests than P. zonangulus. Vegetation substrate had no effect on survival of P. zonangulus but did affect P. clarkii. Ceratophyllum resulted in increased aggression as measured by decreased survival in intraspecific pairs of P. clarkii, equalized P. clarkii to P. zonangulus in interspecific pairs, but had no effect on intraspecific pairs of P. zonangulus. Hay served as a refugia for P. clarkii and increased their survival in both intra and inter specific contests compared to controls. Soil substrate had more effect on P. zonangulus than on P. clarkii. In intraspecific contests, the addition of either sand or air dried clay significantly increased the survival of the usually more aggressive P. zonangulus. In interspecific contests P. clarkii had better survival in the presence of clay by using it for refuge. Sand substrate did not increase the survival of P. clarkii in either interspecific or intraspecific contests, and clay substrate had no effect on intraspecific contests in pairs of P. clarkii.

Supplemental Documents

  • There are no supplementary documents for this article

CrossRef Logo

Cited By

Citations:

How to Cite

Konikoff M, Huner JV and Guilmet DM. (2006). Effects of vegetation and soil on the survival of juvenile Procambarus clarkii and P zonangulus in interspecific and intraspecific contests. Freshwater Crayfish 15(1):36-47. doi: 10.5869/fc.2006.v15.036

 

 

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