Theses and Dissertations


Title: Age and growth of channel catfish, Ictalurus punctatus (Rafinesque), in the Alabama and Tombigbee River drainages

Name: Wahlquist, Harold

Degree: PhD

Chair: Dr. J.S. Ramsey

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1971

Pages: 76

Keywords: Age,Growth,Channel Catfish,Alabama River,Tombigbee River.

Abstract:

Age and growth of channel catfish, Ictalurus punctatus (Rafinesque), was compared between six sampling areas in the Alabama and Tombigbee River drainages of Alabama during 1969 and 1970. Age determinations and growth estimations were made by measuring annual growth rings on cross sections of pectoral spines. Fish collected from the Alabama River showed the fastest growth while fish collected from the Tombigbee River and Lake Jordan showed the slowest growth compared to all other sampling areas. Yearly differences existed in the length-weight relationships in two of the six sampling areas which was attributed to sampling bias. Fecundity was estimated from a pooled sample of ripe females from all areas and both years. Female channel catfish appear to mature in Alabama at an earlier age compared to other areas, but the absence of older females suggests selective mortality.

Download: Download

203 Swingle Hall | Auburn, Alabama 36849 | (334) 844-4786 |
Website Feedback | Privacy | Copyright ©