Theses and Dissertations

Title: Comparative tolerance of fingerling black crappie, white crappie, and largemouth bass to Fintrol-5 at two pH levels

Name: Powell, Douglas Henry

Degree: MS

Chair: Dr. R. Oneal Smitherman

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1971

Pages: 40

Keywords: Tolerance,Fingerling,Black Crappie,White Crappie,Largemouth Bass,Fintrol-5,pH Levels.


A comparison of tolerance to Fintrol-5 by fingerling black crappie, Pomoxis nigromaculatus (LeSueur), white crappie, Pomoxis annularis Rafinesque, and largemouth bass, Micropterus salmoides (Lacepede), was conducted in aquaria. Based on preliminary work in aquaria, a field study was also conducted. The aquaria study utilized six concentrations of Fintrol-5 (0, .02, .04, .06, .08, and .10 ppm), two levels of pH (7.0 and 8.0-8.5), and two levels of KMnO4 (0 and 1 ppm). From this study white crappie were found to be more susceptible to Fintrol-5 at 0-.10 ppm than were black crappie or largemouth bass. The largemouth bass and black crappie showed a similar tolerance to the toxicant. At pH 8.0-8.5, the mortality of largemouth bass and black crappie was significantly reduced. At pH 7.0, all three species suffered significant mortalities beginning with .04 ppm Fintrol-5. The addition of 1 ppm KMnO4 significantly reduced mortality by its detoxification of Fintrol-5. In the field study utilizing 0.1-acre earthen ponds, both .06 ppm and .10 ppm Fintrol-5 produced mortalities too great for management use.

Download: Download

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