Microbiological analysis of skin lesions of cod (Gadus morhua) from the southern part of the Baltic Sea
, , , , and | Mar 23, 2024
Published Online: Mar 23, 2024
Page range: 79 - 92
Received: Jul 21, 2023
Accepted: Jan 17, 2024
DOI: https://doi.org/10.2478/jvetres-2024-0004
Keywords
© 2024 Agnieszka Pękala-Safińska et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Introduction
Since the middle of the 1980s, severe skin disorders have been observed in Baltic cod (
Material and Methods
A total of 1,381 cod were caught during two voyages of the Baltica research vessel in the Polish exclusive economic zone of the southern Baltic Sea. After an examination which found lesions in 164 of the fish, a microbiological analysis was performed to isolate bacteria from them. The collected strains were phenotyped and genotyped, and their antimicrobial resistance was analysed by minimum inhibitory concentration (MIC) techniques.
Results
Bacteriological examinations provided 850 isolates. The dominant microorganisms were mesophilic
Conclusion
Most of the collected bacteria were opportunistic pathogens for fish, widespread in the aquatic environment, and potentially threatening to humans.