Bacterial microflora in the gastro-intestinal tract of Dover sole (Solea solea L.), with emphasis on the possible role of bacteria in the nutrition of the host

Citation

MacDonald NL, Stark JR & Austin B (1986) Bacterial microflora in the gastro-intestinal tract of Dover sole (Solea solea L.), with emphasis on the possible role of bacteria in the nutrition of the host. FEMS Microbiology Letters, 35 (1), pp. 107-111. https://doi.org/10.1111/j.1574-6968.1986.tb01508.x

Abstract
There was a progressive increase in the size of the aerobic heterotrophic bacterial populations along the gastro-intestinal tract of farmed Dover sole. Moreover, higher counts were recorded in juvenile than in adult animals. Thus, in juvenile fish, 5.2 × 105, 8.0 × 105 and 9.8 × 106 aerobic heterotrophs/g were recovered from the stomach/foregut, midgut and hindgut/rectum, respectively. In adult fish, comparative samples revealed the presence of only 3.0 × 104, 7.0 × 104 and 2.3 × 105 bacteria/g, respectively. There bacteria were equated with Acinetobacter, Alcaligenes, Enterobacteriaceae representatives, Flavobacterium, Micrococcus, Photobacterium, Staphylococcus and Vibrio. Of the compounds tested, many isolates, particularly those recovered from the hindgut/rectum, degraded p-nitrophenyl-β-N-acetylglucosaminide, chitin and collagen. Consequently, it is likely that such organisms may contribute to nutritional processes within Dover sole.

Keywords
Bacterial microflora; Dover sole; Gastro-intestinal tract; Alcaligenes; Acinetobacter; Flavobacterium; Micrococcus; Staphylococcus; Vibrio

Journal
FEMS Microbiology Letters: Volume 35, Issue 1