Diseases in Fish and Shellfish - Volume II

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

Deadline for manuscript submissions: closed (10 December 2023) | Viewed by 3887

Special Issue Editors

College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
Interests: aquaculture; diseases; fish; immune response; shrimp
Special Issues, Collections and Topics in MDPI journals
Department of Veterinary Medicine, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
Interests: diseases; diagnostic; probiotics; shrimp; tilapia

Special Issue Information

Dear Colleagues,

It is our pleasure to announce the launch of a second edition Special Issue in Fishes on the topic of “Diseases in Fish and Shellfish”. The contribution of aquaculture production is increasing steadily in much of the world. However, the aquaculture industry is beset by diseases, mostly due to viruses, bacteria, and parasites. Host–disease interactions are complex, compounded by factors that are capable of shifting the balance in either direction. The host’s behavior, immunological status, and environmental change can affect the association that is beneficial to the host, whereas evasion of the host’s immune response favors the disease. The outcome of these associations is hinged on susceptibility and resistance. This Special Issue aims to collect original research articles or reviews that focus on the viral, bacterial, and parasitic diseases of fish and shellfish, host–disease interaction, disease mechanisms, and management.

Dr. Jee Eun Han
Dr. Patharapol Piamsomboon
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.

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Published Papers (3 papers)

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Research

15 pages, 2630 KiB  
Article
In Silico Evaluation of the PCR Performance of Different Tests for Detection of WSSV
by Arturo Sánchez-Paz, Trinidad Encinas-García and Fernando Mendoza-Cano
Fishes 2024, 9(1), 5; https://doi.org/10.3390/fishes9010005 - 20 Dec 2023
Viewed by 1168
Abstract
In this study, the primers of different protocols for the detection of White Spot Syndrome Virus (WSSV) were analyzed in silico to evaluate their potential performance in PCR. As with any biological entity, this virus evolves constantly. Thus, this analysis showed that a [...] Read more.
In this study, the primers of different protocols for the detection of White Spot Syndrome Virus (WSSV) were analyzed in silico to evaluate their potential performance in PCR. As with any biological entity, this virus evolves constantly. Thus, this analysis showed that a few primers, including those recommended by the World Organization for Animal Health (WOAH), might mismatch with some isolates of WSSV, specially with isolates more recently sequenced. Furthermore, a set of primers recommended by WOAH, showed the potential to self-dimer and form hairpin loop structures, which could affect the efficiency of PCR, resulting in an inaccurate diagnostic result. From our perspective, and considering the evolutionary trajectory of this virus, it may be time for the WOAH to update the PCR protocols recommended for WSSV detection, which remains as a highly prevalent and lethal virus. Full article
(This article belongs to the Special Issue Diseases in Fish and Shellfish - Volume II)
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9 pages, 3417 KiB  
Article
Host Habitat as a Dominant Role in Shaping the Gut Microbiota of Wild Crucian Carp (Carassius auratus)
by Xinghao Li, Xueli Huang, Liya Zhao, Wei Cai, Yuhe Yu and Jin Zhang
Fishes 2023, 8(7), 369; https://doi.org/10.3390/fishes8070369 - 17 Jul 2023
Viewed by 768
Abstract
Current knowledge on the fish gut microbiota has largely been obtained from experiments on laboratory-reared animals. Here, the crucian carp (Carassius auratus) with a mean weight of 159.9 ± 11.4 g (mean ± SD) were collected from their natural habitats (i.e., Wuhu lake [...] Read more.
Current knowledge on the fish gut microbiota has largely been obtained from experiments on laboratory-reared animals. Here, the crucian carp (Carassius auratus) with a mean weight of 159.9 ± 11.4 g (mean ± SD) were collected from their natural habitats (i.e., Wuhu lake and Poyang lake, China), and the gut microbiota were analysed by using the next-generation sequencing of 16S rRNA gene. We obtained more than 430,000 high-quality reads, which constituted more than 1200 operational taxonomy units (OTUs), revealing extremely diverse microbes in the fish gut. Proteobacteria, Fusobacteria, Bacteroidetes and Firmicutes were detected as the prominent phyla (each > 1% of total abundance) within the gut microbiota, regardless of the host habitat or the gut segment (i.e., foregut vs. hindgut). Although the microbes in the hindgut were more diverse (OTU number, Shannon and Chao1; One-way Anova, p > 0.05) than in the foregut, the host habitat had a significant role in shaping the community structures (MRPP, ANOSIM, PERMANOVA, p < 0.01). Interestingly, we also detected a set of common OTUs, whereby genera Aeromonas and Cetobacterium might comprise the core gut microbiota of crucian carp. Full article
(This article belongs to the Special Issue Diseases in Fish and Shellfish - Volume II)
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11 pages, 809 KiB  
Article
Isolation and Identification of Pathogenic Vibrio Species in Black Rockfish Sebastes schlegeli
by Xiaoling Liu, Cuirong You and Yong Zeng
Fishes 2023, 8(5), 235; https://doi.org/10.3390/fishes8050235 - 29 Apr 2023
Viewed by 1606
Abstract
Four pathogenic Vibrio species were isolated from three diseased black rockfish Sebastes schlegeli in Yantai, Shandong Province, China. The strains were identified based on physiological and biochemical characteristics and 16S rDNA sequencing and named SF-2, SF-3, SF-5, and SF-6, respectively. SF-2 was Vibrio [...] Read more.
Four pathogenic Vibrio species were isolated from three diseased black rockfish Sebastes schlegeli in Yantai, Shandong Province, China. The strains were identified based on physiological and biochemical characteristics and 16S rDNA sequencing and named SF-2, SF-3, SF-5, and SF-6, respectively. SF-2 was Vibrio scophthalmi, SF-3 was V. harveyi, SF-5 was V. alginolyticus, and SF-6 was V. parahaemolyticus. This is the first time that V. scophthalmi was isolated from black rockfish. The present research shows that V. scophthalmi is a potential pathogen. Detection of virulence genes using polymerase chain reaction showed that SF-3, SF-5, and SF-6 carried FlaB; SF-5 and SF-6 carried TcpA; and SF-2, SF-5, and SF-6 carried ToxS. Tdh, Trh, Tlh, ToxR, and Zot were not detected. SF-3, SF-5, and SF-6 all had protease, gelatinase, lipase, and lecithinase. They were all intermediately sensitive to erythromycin, whereas SF-2, SF-5, and SF-6 were sensitive to spectinomycin, and SF-3 was sensitive to cotrimoxazole and chloramphenicol. They were resistant to most antibiotics and multidrug resistance was obvious. Full article
(This article belongs to the Special Issue Diseases in Fish and Shellfish - Volume II)
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