Bacterial community associated with fish and water from Congonhas River, Sertaneja, Parana, Brazil

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Sousa, JA (Author) FCUP; Silva Souza, AT (Author) Other

Journal

Title: Brazilian Archives of Biology and Technology

Vol. 44

Pages: 373-381

ISSN: 1516-8913

Publisher: Instituto de Tecnologia do Paraná

Indexing

ISI Web of Knowledge - 17 Citations

Scopus - 32 Citations

Other information

Authenticus ID: P-000-WTX

DOI: 10.1590/s1516-89132001000400007

Abstract (EN): A bacteriological study was conducted on fish and water from Congonhas River, Sertaneja (22degrees58' S; 50degrees58' W), Parana State, Brazil. From 44% of the analysed fish, bacteria belonging to Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Micrococcus, Bacillus and Lactobacillus were isolated. The group most frequently isolated,from fish was Aeromonas. In the water, the bacterial groups detected were Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Bacillus and Flavobacterium, from which Flavobacterium and Acinetobacter were the most abundant. The numbers of Colony Forming Units per millilitre of water varied from 3.1 x 10(2) to 1.0 x 10(3). Although a clear pattern was not detected in the susceptibilities/resistances of the isolated strains to nine antimicrobial substances, Grain negative aerobic bacteria were more resistant than the other strains. A simultaneous resistance to furazolidone, oxolinic acid and norfloxacin, particularly in the bacteria isolated from fish, as well as in the aerobic strains isolated from water was observed. The antimicrobial substances to which less resistances were found were oxytetracycline in the strains isolated from water, and trimethoprimsulphamethoxazole, oxytetracycline and chloraniphenicol in those isolated from fish.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9