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Isolation of Acholeplasma laidlawii from centrarchids in a Central Florida Lake

Journal of Aquatic Animal Health
By: , , , , , , and 
https://doi.org/10.1577/1548-8667(1998)010<0252:IOALFC>2.0.CO;2

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Abstract

In 1991, the poor physical condition of largemouth bass Micropterus salmoides from Lake Harris, Florida, was associated with the decline of the lake's fishery. The swim bladders of emaciated bass had mild inflammation and ecchymotic hemorrhages. A mycoplasma-like organism isolated from swim bladders was initially believed to be the causative agent. The organism was later identified as Acholeplasma laidlawii by using a fluorescent antibody procedure and was demonstrated to be nonpathogenic. Parenteral injection of the organism into healthy largemouth bass fingerlings produced no signs of disease or difference in growth rate compared with control fish during a 16-month period. Field studies resulted in isolation of A. laidlawii from black crappies Pomoxis nigromaculatus, bluegills Lepomis macrochirus, and redear sunfish L. microlophus, but not from noncentrarchids in Lake Harris or from any fish species in a control fishery (Lake Holly, Florida). The absence of organisms in all emaciated bass, our inability to reproduce the disease, and isolation of the organism from seemingly healthy fish suggest this organism was not pathogenic.

Suggested Citation

Francis-Floyd, R., Reed, P., Gibbs, P., Shotts, E., Bolon, B., Coleman, W., Klinger, R., 1998, Isolation of Acholeplasma laidlawii from centrarchids in a Central Florida Lake: Journal of Aquatic Animal Health, v. 10, no. 3, p. 252-258, https://doi.org/10.1577/1548-8667(1998)010<0252:IOALFC>2.0.CO;2.

Publication type Article
Publication Subtype Journal Article
Title Isolation of Acholeplasma laidlawii from centrarchids in a Central Florida Lake
Series title Journal of Aquatic Animal Health
DOI 10.1577/1548-8667(1998)010<0252:IOALFC>2.0.CO;2
Volume 10
Issue 3
Year Published 1998
Language English
Publisher Taylor and Francis
Description 7 p.
First page 252
Last page 258
Additional publication details