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Bacterial microflora associated with a coastal, marine fish-rearing unit

Published online by Cambridge University Press:  06 October 2009

B. Austin
B. Austin
Affiliation:
Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research, Fish Diseases Laboratory, Weymouth, Dorset, DT4 8UB
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Abstract

Populations of heterotrophic bacteria from a marine fish-rearing unit were estimated using a spread plate technique. Bacterial populations in winter were relatively low compared with counts in summer when the maximum water temperature was recorded. Almost 600 isolates were examined, and found mostly to be Gram-negative rods. The bacterial populations consisted of a diverse array of taxa, and the variations in total numbers were due to relative changes in the abundance of these. There were nine groups isolated exclusively from the surface of turbot, including Alcaligenes faecalis, Bacillus firmus, Photobacterium Angustum, P. logei, Pseudomonas fluorescens and unidentified Gram-negative rods. In addition, pure culture growth of Alteromonas haloplanktis and unidentified Gram-negative, budding bacteria were isolated from within the lesions of moribund turbot.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 63 , Issue 3 , August 1983 , pp. 585 - 592
Copyright
Copyright © Marine Biological Association of the United Kingdom 1983

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