ISSN:
1365-2109
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract. The adherent aerobic bacterial flora present in the gastrointestinal tract and faeces of free-living Arctic charr, Salvelinus alpinus (L.), from Lake Takvatn, Northern Norway, were identified both qualitatively and quantitatively. Approximately 105 bacteria g−1 were found in both the small and large intestines. The predominant bacterial species were identified as Aeromonas, Enterobacteriaceae, Micrococcus and Lactobacillus. Other microorganisms isolated included Acinetobacter, Cytophaga, Flavobacterium, Moraxella, Pseudomonas, Vibrio, Coryneforms and Streptococcus. The intestinal microflora of free-living fish was dominated by Aeromonas and Lactobacillus, but the intestinal bacterial flora of wild fish transferred to hatchery was affected by feeding them either a capelin roe diet or a commercial feed in fresh and sea water. Approximately 55% of the bacterial flora in intestinal contents from fish fed the capelin roe diet was Enterobacteriaceae when the fish were held in fresh and sea water. However, when the wild-caught charr were fed a commercial diet in fresh water, Aeromonas and Pseudomonas dominated in faeces, while Vibrio and Pseudomonas were predominant in the diet group held in sea water.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2109.1994.tb00726.x
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