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Veterinary Sciences
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Advances in Aquatic Animal Diseases
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Advances in Aquatic Animal Diseases

A Special Issue of Veterinary Sciences (ISSN 2306-7381).

Deadline for manuscript submissions: closed (25 June 2026) | Viewed by 3006

Editors

Prof. Dr. María Isabel Quiroga Berdeal

E-Mail Website
Guest Editor
Departamento de Anatomía, Producción Animal y Ciencias Clínicas Veterinarias, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
Interests: icthyopathology; mucosal health; One Health; host-pathogen interaction
Special Issues, Collections and Topics in MDPI journals
Dr. Ana Manuela de Azevedo

E-Mail Website
Guest Editor
Departamento de Anatomía, Producción Animal y Ciencias Clínicas Veterinarias, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
Interests: fish skeleton; icthyopathology; fisheries; veterinary pathology; zebrafish

Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to the Veterinary Sciences Special Issue, “Advances in Aquatic Animal Diseases”, which aims to highlight the latest research, innovations, and challenges in the field of aquatic animal health. This issue seeks cutting-edge studies addressing the diagnosis, pathogenesis, prevention, and management of infectious and non-infectious diseases affecting aquatic organisms in both wild and aquaculture settings. Topics of interest also include, but are not limited to, host–pathogen interactions, emergent and re-emergent diseases, new diagnostic tools, immunological responses, epidemiology, and novel therapeutic approaches. Contributions that explore interdisciplinary perspectives or address the impacts of climate change and strategies for adaptation in aquatic animal health are especially encouraged. Original research articles, reviews, and short communications are welcome. This Special Issue provides a platform for sharing cutting-edge research in aquatic animal health, toward improved animal welfare, advancing the sustainability and efficiency of production systems, and reducing the impact of diseases on wildlife populations, all within the integrative framework of One Health.

Prof. Dr. María Isabel Quiroga Berdeal
Dr. Ana Manuela de 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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Veterinary Sciences 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 2100 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

  • host–pathogen interactions
  • pathogenesis
  • diagnostics
  • prevention
  • disease
  • immunology
  • control
  • aquatic animals

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

Published Papers (3 papers)

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Research

16 pages, 831 KB  
Article
Screening of Stable Reference Genes in Solea senegalensis Juveniles for Nervous Necrosis Virus (NNV) Vaccination Assays
by Lucía Vázquez-Salgado, Carmen López-Vázquez, Isabel Bandín and Sandra Souto
Vet. Sci. 2026, 13(8), 790; https://doi.org/10.3390/vetsci13080790 - 8 Aug 2026
Viewed by 459
Abstract
Quantifying the expression of immune-related genes is essential for evaluating vaccine efficacy. However, obtaining reliable RT-qPCR results requires the use of stable reference genes. In this study, the expression stability of eight candidate reference genes (actb1, actb2, eef1a, gapdh2 [...] Read more.
Quantifying the expression of immune-related genes is essential for evaluating vaccine efficacy. However, obtaining reliable RT-qPCR results requires the use of stable reference genes. In this study, the expression stability of eight candidate reference genes (actb1, actb2, eef1a, gapdh2, hprt1, ubq, 18S, and rps4) was evaluated in brain, kidney, and gut tissues from naïve and virus-infected juvenile sole. Gene stability was assessed through two statistical algorithms (geNorm and NormFinder) and the integrative tool RefFinder, and the results were integrated through RankAggreg for a robust consensus ranking. Among the tested genes, rps4 and ubq showed the highest stability across tissues and experimental conditions and were sufficient for accurate normalisation. The suitability of these genes was validated in vaccinated sole for normalisation of the expression of proinflammatory cytokines (il1β, il6, tnfα), supporting their recommendation as optimal reference genes. Conversely, actb1 and hprt1 were the least stable genes and compromised the reliable quantification of proinflammatory cytokines in vaccinated fish. Full article
(This article belongs to the Special Issue Advances in Aquatic Animal Diseases)
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16 pages, 1297 KB  
Article
Oxidative Stress Markers in the Common Bream Abramis brama Parasitized with Ligula intestinalis
by Nadezhda P. Kantserova, Irina V. Sukhovskaya, Albina A. Tsekova, Daria I. Lebedeva and Liudmila A. Lysenko
Vet. Sci. 2026, 13(4), 400; https://doi.org/10.3390/vetsci13040400 - 19 Apr 2026
Viewed by 929
Abstract
The present study investigated the effect of Ligula intestinalis L. infection on several components of the antioxidant system and on protein oxidation in the host fish, common bream Abramis brama L. In ligulosed bream, the hepatopancreatic antioxidant system response included a decrease in [...] Read more.
The present study investigated the effect of Ligula intestinalis L. infection on several components of the antioxidant system and on protein oxidation in the host fish, common bream Abramis brama L. In ligulosed bream, the hepatopancreatic antioxidant system response included a decrease in catalase (CAT) activity, an increase in glutathione S-transferase (GST) activity, and no change in superoxide dismutase (SOD) activity. The contents of molecular antioxidants in the organs of infected bream were inconsistent; for instance, hepatopancreatic α-tocopherol content was significantly lower, whereas retinol content was significantly higher than in uninfected individuals. In contrast, no significant differences were found in the α-tocopherol or retinol content in the skeletal muscles of infected and uninfected fish. The protein oxidation, estimated via protein carbonyl content, was unaffected by ligulosis, as was the activity of proteasomes. However, the activity of calpain, another protease, was significantly higher in the skeletal muscle of infected fish. Overall, the data reveal moderate and tissue-specific alterations in oxidative stress markers in A. brama infected with L. intestinalis, suggesting a complex host–parasite interaction that does not result in severe systemic oxidative damage under the studied conditions. Full article
(This article belongs to the Special Issue Advances in Aquatic Animal Diseases)
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19 pages, 3261 KB  
Article
Environmental-Nitrite-Enhanced Cyprinid Herpesvirus 2 Infection in Crucian Carp
by Qunlan Zhou, Qianhui Wang, Jun Qiang, Xiaodi Xu, Bo Liu, Shiqian Cao and Hualiang Liang
Vet. Sci. 2026, 13(3), 244; https://doi.org/10.3390/vetsci13030244 - 4 Mar 2026
Cited by 1 | Viewed by 836
Abstract
The deterioration of water quality is associated with an increased disease risk, although the exact mechanism remains unclear. This study investigated the infection dynamics of cyprinid herpesvirus 2 (CyHV-2) in crucian carp (Carassius auratus gibelio) subjected to varying nitrite stress levels. [...] Read more.
The deterioration of water quality is associated with an increased disease risk, although the exact mechanism remains unclear. This study investigated the infection dynamics of cyprinid herpesvirus 2 (CyHV-2) in crucian carp (Carassius auratus gibelio) subjected to varying nitrite stress levels. A control group and three CyHV-2-infected groups exposed to nitrite concentrations of 0, 5, and 10 mg/L were set up. Results indicated that nitrite exposure caused a dose-dependent reduction in survival rates and decreased viral loads in the spleens of surviving fish. Nitrite stress elevated malondialdehyde (MDA) levels and glutathione peroxidase (GPx) activity, while reducing superoxide dismutase (SOD) and catalase (CAT) activities in the liver. Hepatic cytokine analysis revealed early peaks in tumor necrosis factor α (TNF-α) and interleukin 1β (IL-1β), alongside delayed response of interferon γ (IFN-γ) and interleukin 10 (IL-10), indicating impaired anti-inflammatory regulation. In the kidney, nitrite stress amplified immune gene expression, characterized by the upregulation of tlr5 (Toll-like receptor 5) and nf-κb (nuclear factor κB) and the inhibition of iκκβ (inhibitor of NF-κB kinase subunit β), leading to prolonged NF-κB signaling. This was associated with a marked upregulation of il-1β and il-8 (interleukin 8), alongside a delayed ifn-γ response. The combination of nitrite stress and CyHV-2 infection exacerbated oxidative damage and triggered a maladaptive immune response, thereby accelerating disease progression. Full article
(This article belongs to the Special Issue Advances in Aquatic Animal Diseases)
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