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Freshwater Crayfish 19(1): 77-89 (2013)

PEER REVIEWED    RESEARCH ARTICLE

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The life history of the crayfish Procambarus (Pennides) spiculifer in the Alapahoochee River

Hightower PW and Bechler DL  e-mail link

Published Online: 2/15/2013

Abstract

A 15 month life history analysis was conducted from October 2006 to December 2007 on Procambarus spiculifer in southern Georgia, USA. Cephalothorax length (CL) ranged from 6.07 – 59.80 mm and weights from 0.02 – 53.37 g. Mean adult sizes were form I males 45.90 mm, form II males 42.77 mm, and females 38.43 mm. Form I males and mature females were collected year round. Relationships of CL to body weights, ovarian eggs, and abdominal eggs were examined. Peak juvenile introductions into the population occurred in June, late fall, and early winter. Life span could reach two to three years with maturity occurring at 12 – 15 months. Mean ovarian egg count was 602 eggs and mean abdominal laboratory egg count was 464 eggs. Mean abdominal egg diameter was 1.74 mm with a range of 1.04 – 2.03 mm. Females could reproduce more than once during their life-time with new ova developing immediately after egg laying. In this study, the right vas deferens was the only functional one in P. spiculifer. Gonadal somatic indices were determined for mature females, immature females, form I males, and form II males. Gut content analysis revealed mainly vegetal matter, suggesting that the diet of this species may be primarily derived from plant material.

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How to Cite

Hightower PW and Bechler DL. (2013). The life history of the crayfish Procambarus (Pennides) spiculifer in the Alapahoochee River. Freshwater Crayfish 19(1):77-89. doi: 10.5869/fc.2013.v19.077

 

 

Author Information

David L. Bechler,* Biology, Valdosta State University, 1500 North Patterson St., Valdosta, Georgia, USA31698. E-mail: dbechler@valdosta.edu

Philip W. Hightower, School of Science and Mathematics, Abraham Baldwin Agricultural College, , 2802 Moore Highway, Tifton, Georgia, United States of America31793. E-mail: phightower@abac.edu

Corresponding Author indicated by an *.

 

Publication History

   Manuscript Submitted: 10/16/2012

   Manuscript Accepted: 1/24/2013

   Published Online: 2/15/2013

   Published in Print: 2/15/2013

 

 

Funding Information

No specific funding statement is available for this article.

 

 



 

 

 

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