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Fishes
Special Issues
Microbial Pathogens, Disease Control and Veterinary Drug Use in Aquaculture
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Microbial Pathogens, Disease Control and Veterinary Drug Use in Aquaculture

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Welfare, Health and Disease".

Deadline for manuscript submissions: 30 December 2025 | Viewed by 280

Special Issue Editors

Dr. Haipeng Cao

E-Mail Website
Guest Editor
College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
Interests: aquatic animal diseases; drug metabolism; molecular immunity
Dr. Yibin Yang

E-Mail
Guest Editor
Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
Interests: bacterial diseases; intestinal inflammation; fish
Special Issues, Collections and Topics in MDPI journals
Dr. Yali Wang

E-Mail Website
Guest Editor Assistant
College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
Interests: aquatic animal diseases; drug metabolism; molecular immunity

Special Issue Information

Dear Colleagues,

Aquaculture is one of the world’s fastest growing food production sectors. However, infectious diseases heavily limit the sustainable development of this industry. Thus, knowledge about microbial pathogens, disease control, and veterinary drug use in aquaculture is vital for the reduction of infectious disease outbreaks.

The Special Issue is focused on sharing research relating to all aspects of microbial pathogens, diseases control, and veterinary drug use in aquaculture, to contribute to aquatic animal health and improve healthy aquaculture.

We are pleased to invite you to collaborate with original research articles (basic and applied) or reviews in this Special Issue.

Dr. Haipeng Cao
Dr. Yibin Yang
Guest Editors

Dr. Yali Wang
Guest Editor Assistant

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fishes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • diseases
  • pathogens
  • control
  • aquaculture

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

17 pages, 8541 KiB  
Article
Characterization of Immune Response Against Mycobacterium marinum Infection in Coho Salmon (Oncorhynchus kisutch)
by Le Li, Danlei Xu, Xiaoqing Yu, Chunlei Gai, Haibin Ye and Jing Diao
Fishes 2025, 10(6), 268; https://doi.org/10.3390/fishes10060268 - 3 Jun 2025
Viewed by 68
Abstract
Mycobacterium marinum is an opportunistic pathogen prevalent in aquatic environments, causing significant morbidity in fish, including Coho salmon (Oncorhynchus kisutch), a species increasingly cultured in Chinese salmonid aquaculture. This study investigated the immune response of Coho salmon to M. marinum infection [...] Read more.
Mycobacterium marinum is an opportunistic pathogen prevalent in aquatic environments, causing significant morbidity in fish, including Coho salmon (Oncorhynchus kisutch), a species increasingly cultured in Chinese salmonid aquaculture. This study investigated the immune response of Coho salmon to M. marinum infection and the bacterial proliferation dynamics in the liver and kidney. Transcriptome analysis revealed 5028 differentially expressed genes (DEGs) in the kidney and 3419 DEGs in the liver at 6 weeks post-infection. Gene Ontology and KEGG enrichment analysis highlighted pathways such as cytokine–cytokine receptor interaction, metabolic pathways, and Toll-like receptor signaling in the kidney, while the DEGs in the liver were enriched in metabolic pathways, immune system processes, and stress and defense responses. The temporal expression profiling of 15 immune-related genes, including acute-phase proteins (serum amyloid A-5 and hepcidin), cytokines (TNF-α, IL-1β, IL-17A), chemokines (CXCL13 and CCL19), pattern recognition receptors (Toll-like receptor 13), and other immune-related genes, showed significant upregulation against M. marinum infection, with stronger responses in the liver. Furthermore, it was found that there was a progressive proliferation of M. marinum in the infected liver and kidney from approximately 2.5 log10 cfu/g at week 2 to about 6 log10 cfu/g by 6 weeks, with a significantly higher load in the liver. These findings provide critical insights into the immune mechanisms of Coho salmon against M. marinum and the pathogen’s tissue-specific proliferation, offering a foundation for developing targeted control strategies against M. marinum in aquaculture. Full article
(This article belongs to the Special Issue Microbial Pathogens, Disease Control and Veterinary Drug Use in Aquaculture)
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