Collected reprints: Abstract 2689

Collected reprints

Abstract

Verdonck, L.; Swings, J.; Kersters, K.; Dehasque, M.; Sorgeloos, P.; Léger, P. (1994). Variability of the microbial environment of rotifer Brachionis plicatilis and Artemia production systems. J. World Aquacult. Soc. 25(1): 55-59

Samplings were organized in three marine fish hatcheries. Samples were taken at different steps during the production of algae, rotifers and Artemia. There were 233 dominant colony types isolated for further characterization. The isolates were compared to each other and to reference strains of Photobacterium, Vibrio and Alteromonas, using cellular fatty acid fingerprints. Fatty acid profiles of the isolates were grouped using principal component analysis. The isolates fell into at least ten major groups, of which two correspond to the genera Vibrio and to Alteromonas, respectively. Some groups seem to be restricted to a particular type of live food or isolation site. Although 43% of the isolates belong to Vibrio, only a minority of them could be readily assigned to known species.

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