Theses and Dissertations


Title: Comparative life history of the redeye bass, Micropterus coosae Hubbs and Bailey, and the spotted bass, Micropterus p. punctulatus (Rafinesque), in Halawakee Creek, Alabama

Name: Hurst, Harold N

Degree: MS

Chair: Dr. John S. Ramsey

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1969

Pages: 66

Keywords: Life History,Redeye Bass,Micropterus coosae,Spotted Bass,Micropterus p. punctulatus (Rafinesque),Halawakee Creek,Alabama.

Abstract:

A comparative life history study of the spotted bass, Micropterus punctulatus punctulatus, and redeye bass, Micropterus coosae (Apalachicola race), in Halawakee Creek, Alabama, was carried out between April 1, 1968, and May 31, 1969. Sixty-eight spotted bass and 68 redeye bass were collected from the study area by angling, electrofishing, and rotenone application. Growth of the spotted bass was greatest during the second and third years and least during the fifth year. Growth of redeye bass was greatest the first and third and least the sixth and seventh years. Growth rates of the two species were about equal. The life span of the spotted bass was short compared to that of the redeye bass. Because of its greater longevity, most of the large bass collected from the creek were redeye bass. The most important food in the diet of both species was crayfishes and fishes. Insects were not an important source of food except for bass 100 mm standard length or less. Most individuals of both species spawned in late May and early June. At least a few redeye bass spawned in early April, 1968 and 1969. There was no indication that spotted bass spawned in early April. Fecundity of the spotted bass was greater than the redeye bass. The average five-year-old, 1000 g, spotted bass female contained 22,000 eggs compared to 12,000 eggs for redeye bass females of the same age and rate. Most individuals of both species did not mature until the third year. The two species were found in similar habitats throughout the study area and were present in about equal numbers.

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