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Microbiological analysis of skin lesions of cod (Gadus morhua) from the southern part of the Baltic Sea

cris.virtual.author-orcid0000-0002-5515-8329
cris.virtual.author-orcid0000-0002-8125-973X
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cris.virtualsource.author-orcidff70475f-45ad-40b3-98ef-4ff1a6dca47c
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dc.abstract.enIntroduction Since the middle of the 1980s, severe skin disorders have been observed in Baltic cod (Gadus morhua) each year. Available data on the spectrum of bacteria isolated from the clinical cases being limited, and evaluation of the microbial background of fish skin lesions being useful, a bacteriological examination has been undertaken. 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 Aeromonas spp., Pseudomonas spp. and Shewanella baltica. Opportunistic bacteria potentially hazardous to human health were also isolated, e.g. Alcaligenes faecalis, Staphylococcus epidermidis, Stenotrophomonas maltophilia and Vibrio sp. The MIC analysis determined the highest number of bacteria to resist sulphamethoxazole and amoxicillin and clavulanic acid. Conclusion Most of the collected bacteria were opportunistic pathogens for fish, widespread in the aquatic environment, and potentially threatening to humans.
dc.affiliationWydział Medycyny Weterynaryjnej i Nauk o Zwierzętach
dc.affiliation.instituteKatedra Nauk Przedklinicznych i Chorób Zakaźnych
dc.contributor.authorPękala-Safińska, Agnieszka
dc.contributor.authorNadolna-Ałtyn, Katarzyna
dc.contributor.authorRóżycki, Mirosław
dc.contributor.authorPaździor, Ewa
dc.contributor.authorCencek, Tomasz
dc.contributor.authorPodolska, Magdalena
dc.date.access2024-12-20
dc.date.accessioned2024-12-20T13:19:25Z
dc.date.available2024-12-20T13:19:25Z
dc.date.copyright2024-03-23
dc.date.issued2024
dc.description.abstract<jats:title>Abstract</jats:title> <jats:sec> <jats:title>Introduction</jats:title> <jats:p>Since the middle of the 1980s, severe skin disorders have been observed in Baltic cod (<jats:italic>Gadus morhua</jats:italic>) each year. Available data on the spectrum of bacteria isolated from the clinical cases being limited, and evaluation of the microbial background of fish skin lesions being useful, a bacteriological examination has been undertaken.</jats:p> </jats:sec> <jats:sec> <jats:title>Material and Methods</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>Bacteriological examinations provided 850 isolates. The dominant microorganisms were mesophilic <jats:italic>Aeromonas</jats:italic> spp., <jats:italic>Pseudomonas</jats:italic> spp. and <jats:italic>Shewanella baltica</jats:italic>. Opportunistic bacteria potentially hazardous to human health were also isolated, <jats:italic>e.g</jats:italic>. <jats:italic>Alcaligenes faecalis</jats:italic>, <jats:italic>Staphylococcus epidermidis</jats:italic>, <jats:italic>Stenotrophomonas maltophilia</jats:italic> and <jats:italic>Vibrio</jats:italic> sp. The MIC analysis determined the highest number of bacteria to resist sulphamethoxazole and amoxicillin and clavulanic acid.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusion</jats:title> <jats:p>Most of the collected bacteria were opportunistic pathogens for fish, widespread in the aquatic environment, and potentially threatening to humans.</jats:p> </jats:sec>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_act
dc.description.financecost1335,00
dc.description.if1,3
dc.description.number1
dc.description.points140
dc.description.reviewreview
dc.description.versionfinal_published
dc.description.volume68
dc.identifier.doi10.2478/jvetres-2024-0004
dc.identifier.issn2450-8608
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/2266
dc.identifier.weblinkhttps://sciendo.com/pl/article/10.2478/jvetres-2024-0004
dc.languageen
dc.pbn.affiliationveterinary science
dc.relation.ispartofJournal of Veterinary Research
dc.relation.pages79-92
dc.rightsCC-BY-NC-ND
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.enBaltic cod
dc.subject.enGadus morhua
dc.subject.enfish skin disorders
dc.subject.enmarine bacteria
dc.subject.enBaltic Sea
dc.subject.enantimicrobial resistance
dc.titleMicrobiological analysis of skin lesions of cod (Gadus morhua) from the southern part of the Baltic Sea
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume68
project.funder.namesubwencja