Microbiological studies of tench (Tinca tinca L.) and water of Dgał Wielki Lake

Abstract

Microbiological analyses were carried out of the digestive tract contents of tench and of water from Lake Dgał Wielki. Qualitative and quantitative parameters were evaluated. Numbers of bacteria indicatory of water production (TVC 20°C and TVC 37°C) and sanitary state (TC, FS, FS), Clostridium perfringens, and Pseudomonas aeruginosa were calculated. Qualitative analyses involved classification of the genera of bacteria isolated on agar in 20°C and on Endo medium in 37°C from the lake water and tench digestive tract contents.