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Preliminary study on antimicrobial activities of skin mucus from by-catch of Elasmobranch species Cover

Preliminary study on antimicrobial activities of skin mucus from by-catch of Elasmobranch species

Open Access
|Jun 2023

Abstract

Skates and rays, which are widely encountered in the by-catch of fisheries activities from the Sea of Marmara and banned for sale by regulation, are species that are discarded if caught. For this reason, in our study, we aimed to determine the bioactive potentials of these species, considered fishing waste, by investigating the skin secretions and microbial flora. In our study, both the skin flora and mucus contents of the discarded species Dasyatis pastinaca (Linnaeus, 1758), Myliobatis aquila (Linnaeus, 1758), and Raja clavata (Linnaeus, 1758) caught in the Sea of Marmara were investigated to determine their potential antimicrobial activities. A total of 164 bacteria were isolated from the epidermal mucus of the three batoid species. Antibacterial activity was observed from three isolated bacteria against Escherichia coli, Vancomycin-resistant Enterococcus faecium, E. faecalis, and Bacillus subtilis. Additionally, the highest antibacterial activity was observed for skin mucus of R. clavata. Mouse fibroblast cell viability was challenged with mucus secretions. M. aquila and R. clavata mucus secretions exhibited no observable change after 24 and 48 hours. The assays indicated that both the isolates and the skin mucus have potential antimicrobial activity against opportunistic pathogens.

DOI: https://doi.org/10.26881/oahs-2023.2.01 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 137 - 146
Submitted on: Jun 13, 2022
Accepted on: Mar 8, 2023
Published on: Jun 28, 2023
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2023 Elif Özlem Arslan Aydoğdu, Mert Kesiktaş, Nazmiye Ozlem Sanli, Nihal Doğruöz Güngör, Serap Sancar, Taner Yildiz, Emre Yemişken, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.