Fish Pathogens: Infection and Biological Control

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

Deadline for manuscript submissions: 15 May 2024 | Viewed by 2270

Special Issue Editors

Laboratory of Fish Bacteriology (LABBEP), Department of Veterinary Preventive Medicine, State University of Londrina, Londrina, PR, Brazil
Interests: fish health; probiotics; genomics; bioinformatics; immune modulation; pathogen characterization; virulence; pathogeny
Department of Biological Sciences, Universidade Federal do Vale do São Francisco, Petrolina 56304-917, PE, Brazil
Interests: animal health; veterinary microbiology; genomics; bioinformatics
Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
Interests: animal health; veterinary microbiology; bacterial genetics; genomics; bioinformatics
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Special Issue Information

Dear Colleagues,

The journal Fishes is preparing a Special Issue entitled "Fish Pathogens: Infection and Biological Control". In recent decades, the field of fish farming has reported many emergent pathogens as new genotypic profiles or through emerging new pathogens, resulting in relevant losses of production. Therefore, the relation of the pathogen to its host (pathogenesis in one or more hosts to define host predilection), genetic/genomic characterization and, additionally, probiotics as an alternative control of the impact of disease should be further explored. This Special Issue aims to explore the boundaries of our scientific knowledge, focusing on increasing our knowledge about emergent fish pathogens and increasing applicable strategies related to the control (biocontrol and immune stimulation), prevention and immunoprophylaxis of fish emergent pathogens. We welcome the submission of original research articles and reviews on topics including (but not limited to) the following:

  • Emergent fish pathogens: the characterization of production losses due to outbreaks, genetic/antigenic profiles of pathogen and/or tissue lesions, and host adaptability;
  • Comparative genomics studies of emergent fish pathogens;
  • Probiotics as a control of emergent fish pathogens.

Prof. Dr. Ulisses De Pádua Pereira
Dr. Mateus Matiuzzi Da Costa
Prof. Dr. Vasco Azevedo
Guest Editors

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

  • fish pathogens
  • emergent pathogen characterization
  • pathogenomics
  • fish probiotics
  • bioinformatics

Published Papers (2 papers)

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Editorial

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4 pages, 224 KiB  
Editorial
Fish Pathogens: Infection and Biological Control
Fishes 2023, 8(12), 579; https://doi.org/10.3390/fishes8120579 - 28 Nov 2023
Viewed by 1008
Abstract
Over the last few decades, diseases have emerged as a major bottleneck in fish farming, especially with the emergence of several fish pathogens and increasing resistance to treatments [...] Full article
(This article belongs to the Special Issue Fish Pathogens: Infection and Biological Control)

Research

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11 pages, 3548 KiB  
Article
First Report of Vibrio vulnificus Outbreak in Farm-Raised Sorubim (Pseudoplatystoma sp.) from Brazil
Fishes 2024, 9(2), 54; https://doi.org/10.3390/fishes9020054 - 29 Jan 2024
Viewed by 747
Abstract
Vibrio vulnificus is an opportunistic pathogen in humans and exhibits pathogenic behavior in several aquaculture fish species. To date, in Brazil, there are no reports of V. vulnificus outbreaks in farmed fish. However, in 2019, sorubim (Pseudoplatystoma sp.) in the grow-out phase [...] Read more.
Vibrio vulnificus is an opportunistic pathogen in humans and exhibits pathogenic behavior in several aquaculture fish species. To date, in Brazil, there are no reports of V. vulnificus outbreaks in farmed fish. However, in 2019, sorubim (Pseudoplatystoma sp.) in the grow-out phase with clinical signs and cumulative mortality of 40% was registered. We aimed to identify and characterize the etiological agents of this outbreak. Seven moribund fish were sampled for bacteriological studies, and isolates were obtained from the brain and kidneys. Bacterial identification using matrix-assisted laser desorption ionization mass spectrometry (MALDI-TOF/MS) revealed V. vulnificus. One isolate, RP4, was used for identification via dnaJ and 16S rRNA gene sequencing and antimicrobial susceptibility evaluation. Sorubim juveniles were experimentally challenged with RP4 isolate via intracelomic injection (IC, 107 colony-forming units [CFU] fish−1) and immersion bath (IB, 106 CFU mL−1 for 30 min). Identities to V. vulnificus of dnaJ and 16S rRNA genes by BLAST analysis were higher than 92% and 98%, respectively. Susceptibility to oxytetracycline, florfenicol, and other antimicrobial molecules was also observed. In the IC-challenged group, the mortality rate was 100% with V. vulnificus recovered from fish organs (brain, liver, spleen, and kidney). Additionally, splenic endothelium alterations were observed in the IC group. On the contrary, the control and IB groups did not develop any clinical signs, mortality, or bacterial recovery after 7 days of challenge. To the best of our knowledge, this is the first report of pathogenic V. vulnificus in farmed Pseudoplatystoma sp. Full article
(This article belongs to the Special Issue Fish Pathogens: Infection and Biological Control)
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