Bulletin of the SFI 2 (162) 2004 - Enumeration of selected potentially pathogenic bacteria in post-cooling waters used in fish fattening

Enumeration of selected potentially pathogenic bacteria in post-cooling waters used in fish fattening
Bulletin of the Sea Fisheries Institute 2 (162) 2004, pp. 31-39

Monika Harnisz and Izabella Zmysłowska
University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-957 Olsztyn, Poland

Key words: Aeromonas hydrophila, Pseudomonas fluorescens, Staphylococcus aureus, Enterobacteriaceae, fish farming, cooling waters.

Abstract.
The results of this study indicate that fish fattening did not influence the quantitative content of the Aeromonas hydrophila, Pseudomonas fluorescens, and Staphylococcus aureus bacteria in cooling waters. However, higher average numbers of bacteria from the Enterobacteriaceae family were confirmed in the water flowing out of the fish farm in comparison with inflow water. It was noted that the numbers of the bacterial microflora in the cooling waters is probably impacted by the qualitative and quantitative composition of the bacterial microflora released from the digestive tracts of fish.