Effects of temperature and salt concentration on latent Edwardsiella ictaluri infections in channel catfish

Abstract

DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials DAO 21:171-175 (1995) - doi:10.3354/dao021171 Effects of temperature and salt concentration on latent Edwardsiella ictaluri infections in channel catfish Plumb JA, Shoemaker C Juvenile channel catfish Ictalurus punctatus, 10% of which had a natural, latent infection of Edwardsiellaictaluri, were held in water at 15 +/- 2*C. Following elevation of the water temperature to 25*C for 28 d, 77% died with clinical E. ictaluri infections. This level of mortality was significantly higher (p < 0.05) than mortality attributable to E. ictaluri when the water temperature was raised to 18*C (10%) or to 30*C (23%). Channel catfish naturally infected with E. ictaluri were exposed to 0, 100, 1000, 2000, and 3000 mg l-1 NaCl at 25*C for 28 d. Mortalities of channel catfish held in NaCl concentrations of 0 and 100 mg l-1 (100% and 96% respectively) were significantly higher than those held in NaCl concentrations of 1000, 2000, and 3000 mg l-1 (33, 43, and 17%, respectively). Channel catfish . Bacteria . Salt . Temperature . Edwardsiella ictaluri Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in DAO Vol. 21, No. 3. Publication date: March 30, 1995 Print ISSN:0177-5103; Online ISSN:1616-1580 Copyright © 1995 Inter-Research.