Diseases of aquatic organisms最新文献_第2页

Odontophoroma in a captive red abalone Haliotis rufescens. 圈养红鲍鱼牙鳞瘤的研究。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-07-30 DOI: 10.3354/dao03927

K Fiddes, L Adams, E E B LaDouceur

{"title":"Odontophoroma in a captive red abalone Haliotis rufescens.","authors":"K Fiddes, L Adams, E E B LaDouceur","doi":"10.3354/dao03927","DOIUrl":"10.3354/dao03927","url":null,"abstract":"Red abalone Haliotis rufescens is a gastropod species that has historically been used for purposes including food, currency, and curio trade. Research into gastropod diseases often focuses on their potential as intermediate hosts of bacteria, viruses, or parasites due to their consumption by humans; neoplasms are rarely reported. The red abalone presented in the present case had multiple masses that were diagnosed histologically as mesenchymal neoplasms composed of spindle cells within lacunae embedded in abundant basophilic matrix resembling the cartilage of vertebrates. Some histochemical staining properties of the matrix were also similar to the chondroid matrix of vertebrate cartilage. In abalones, the sole cartilaginous or 'cartilage-like' structure is the odontophore, a mass of tissue that surrounds the radula, a structure used to prehend food. This paper categorizes the histochemical staining characteristics of the abalone odontophore and compares it to the neoplasm in this animal. The similarities in morphology and histochemical staining between the neoplasm and the odontophore, and the lack of other cartilaginous structures in this species, support that this tumor arose from the odontophore, consistent with a diagnosis of an odontophoroma. The odontophore is an anatomic structure unique to the phylum Mollusca, and this mesenchymal neoplasm has not been previously reported in any species within this phylum.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"167 ","pages":"1-6"},"PeriodicalIF":1.2,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation, identification, and genomic features of Proteus mirabilis from diseased Asian arowana Scleropages formosus. 台湾病龙鱼中奇异变形杆菌的分离、鉴定及基因组特征。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-07-16 DOI: 10.3354/dao03925

Han Yang, Siyi Wen, Zhuoran Han, Jingfeng Sun

{"title":"Isolation, identification, and genomic features of Proteus mirabilis from diseased Asian arowana Scleropages formosus.","authors":"Han Yang, Siyi Wen, Zhuoran Han, Jingfeng Sun","doi":"10.3354/dao03925","DOIUrl":"https://doi.org/10.3354/dao03925","url":null,"abstract":"Proteus mirabilis is a Gram-negative opportunistic pathogen increasingly reported in aquatic animals; however, its pathogenic potential and genomic features in ornamental fish remain unclear. This study isolated 3 strains (WSY-112, WSY-113, and WSY-114) from diseased Asian arowana Scleropages formosus displaying hemorrhagic and ulcerative lesions. All 3 isolates were identified as P. mirabilis through physiological and biochemical characterization as well as 16S rRNA and gyrB sequencing. Strain WSY-114 was selected for further analyses, including whole-genome sequencing, antimicrobial susceptibility testing, and experimental infection. Genomic annotation identified multiple virulence-related genes for flagellar assembly, adhesion, toxin production, iron acquisition, and type III/IV/VI secretion systems. Experimental infection in zebrafish Danio rerio showed dose-dependent mortality (LD50 = 6.6 × 104 CFU g-1) and clinical signs mirroring natural infections in the arowana. The strain exhibited resistance to multiple tested antibiotics, including tetracyclines (tetracycline, minocycline, and doxycycline), macrolides (erythromycin and azithromycin), and ampicillin, consistent with antibiotic-resistance genes detected in its genome. These results indicate that P. mirabilis exhibits pathogenic potential under experimental conditions and may represent a potential risk factor in ornamental fish.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"167 ","pages":"1-15"},"PeriodicalIF":1.2,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148469533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First confirmed case of systemic granulomatosis caused by Nocardia seriolae in farmed snubnose pompano Trachinotus blochii in the Philippines. 菲律宾首例由诺卡菌引起的系统性肉芽肿病确诊病例。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-07-16 DOI: 10.3354/dao03926

Francis S Legario, Milessa H Argañoza, Angelie A Gente, Ma Elaine E De Leon, Christine Grace Ca-As-Ricio, Rajat Sood, Casiano H Choresca

{"title":"First confirmed case of systemic granulomatosis caused by Nocardia seriolae in farmed snubnose pompano Trachinotus blochii in the Philippines.","authors":"Francis S Legario, Milessa H Argañoza, Angelie A Gente, Ma Elaine E De Leon, Christine Grace Ca-As-Ricio, Rajat Sood, Casiano H Choresca","doi":"10.3354/dao03926","DOIUrl":"https://doi.org/10.3354/dao03926","url":null,"abstract":"Ulcerative granulomatous disease in farmed snubnose pompano Trachinotus blochii (Lacepede, 1801) in the Philippines was documented in 2019 by the Bureau of Fisheries and Aquatic Resources and has since become an annual problem for fish farmers, with outbreaks occurring between September and October. Three apparently healthy adults and 5 diseased adults displaying ulcerated skin were subjected to diagnosis. During postmortem examination, multiple nodules were present in all kidneys and the spleen in the 5 diseased fish. Histopathology revealed severe granulomatous formations at different stages. Bacterial pathogens were isolated from diseased fish using modified Lowenstein-Jensen medium, producing wrinkled, cream-colored colonies. Staining revealed Gram-positive, acid-fast, branching, beaded, long rod filamentous bacteria. Identification at the species level and taxonomic positioning of the isolate was achieved through a specific Nocardia seriolae PCR and by sequencing the 16S rRNA gene using pure cultures and tissue sample DNA. PCR amplification of 13 virulence genes resulted in the detection of mce, mce1A, gapA, fbpA, nirD, nirB, narI, narJ, narH, and katG, which are important in N. seriolae invasion, infection, and intracellular survival in macrophages. Two tetracycline resistance genes, namely tetB and tetC, were also found, which might contribute to oxytetracycline resistance, rendering the farm's prophylactic strategy of using oxytetracycline ineffective. To our knowledge, this is the first confirmed report of nocardiosis in farmed snubnose pompano in the Philippines.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"167 ","pages":"1-12"},"PeriodicalIF":1.2,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148469516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First report of the flatworm Convolutriloba longifissura (Acoela) affecting a Caribbean coral species in a land-based nursery. 首次报道扁虫长三叶虫影响加勒比海一个陆地苗圃的珊瑚物种。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-07-16 DOI: 10.3354/dao03921

Aine C Hawthorn, Andreina Rivera, Shamwari Anseeuw Carrasco, Eric Leis, Maria L Ceballos Villacampa, Ainhoa L Zubillaga, Rebecca Garcia-Camps, Aldo Croquer

{"title":"First report of the flatworm Convolutriloba longifissura (Acoela) affecting a Caribbean coral species in a land-based nursery.","authors":"Aine C Hawthorn, Andreina Rivera, Shamwari Anseeuw Carrasco, Eric Leis, Maria L Ceballos Villacampa, Ainhoa L Zubillaga, Rebecca Garcia-Camps, Aldo Croquer","doi":"10.3354/dao03921","DOIUrl":"https://doi.org/10.3354/dao03921","url":null,"abstract":"Flatworms are widespread in the marine realm, but only a few species parasitize corals. Several of these are considered pests in the aquarium trade, and the invasive potential of these species is a concern. In the Caribbean there are no records to date of flatworms naturally occurring in coral nurseries and/or parasitizing corals in the wild. Here we report, for the first time, a flatworm identified as Convolutriloba longifissura affecting a Caribbean coral and include a phylogenetic and histological analyses. Flatworms were collected from nursery corals and artificial recruitment units (bioballs) suspended in the water column at Punta Cana reef. Sequencing and morphology of individuals from both indicate that C. longifissura is present in the wild as well as the nursery. Experiments were conducted to investigate the effect of flatworm exposure on signs of macroscopic stress (i.e. mucus production, paleness, bleaching, and tissue loss) on microfragments of Pseudodiploria clivosa. Standard histopathological techniques were applied to describe microscopic alterations of the coral exposed to C. longifissura. We found corals exposed to 30 individuals of C. longifissura had a 2.5-fold increased probability of developing macroscopic stress signs compared to controls after 14 d of exposure to different flatworm densities. While the actual impacts of these flatworms on coral restoration and microfragmentation programs or wild corals in the Caribbean remain to be determined, our results indicate that flatworms are no longer an exclusive problem of Indo-Pacific corals.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"167 ","pages":"1-9"},"PeriodicalIF":1.2,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148469467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal patterns of Hematodinium perezi differ between blue crab host and environmental DNA in a South Carolina estuary. 在南卡罗莱纳河口，蓝蟹宿主和环境DNA之间的佩雷兹血球的季节模式不同。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-07-02 DOI: 10.3354/dao03924

Hannah G Korper, Michael R Kendrick, Gregory K Rothman, Isaure de Buron, Lengxob Yong

{"title":"Seasonal patterns of Hematodinium perezi differ between blue crab host and environmental DNA in a South Carolina estuary.","authors":"Hannah G Korper, Michael R Kendrick, Gregory K Rothman, Isaure de Buron, Lengxob Yong","doi":"10.3354/dao03924","DOIUrl":"https://doi.org/10.3354/dao03924","url":null,"abstract":"The parasitic dinoflagellate Hematodinium perezi is known to harm and kill marine crustaceans worldwide. It is unclear, however, how the phenology of host infections differs from that of in-water life stages of H. perezi, and how these cycles may vary regionally. Across the US East Coast, including in South Carolina (SC), H. perezi is a parasite of the economically important Atlantic blue crab Callinectes sapidus. The aim of this study was to determine and compare the seasonal presence of H. perezi in C. sapidus and benthic water of the Charleston Harbor estuary, SC, USA, using real-time PCR (RT-PCR). Hemolymph of 322 blue crabs was sampled over 21 mo beginning in September 2022, with concurrent benthic water eDNA sampling beginning in April 2023. DNA from H. perezi was detected in a total of 11 blue crab samples collected in the spring, fall, and winter of 2023. Positive environmental detections of DNA occurred every sampling season, including when H. perezi was reported absent in C. sapidus. Although other unknown factors likely contributed to the observed prevalence, our results suggest a seasonal pattern of the presence of H. perezi in the estuary largely driven by both water temperature and salinity. Altogether, our findings provide foundational information on the phenology of this parasite, critical for understanding disease dynamics in blue crabs in the southeast USA.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"167 ","pages":"1-13"},"PeriodicalIF":1.2,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148367477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification and phylogenetic analysis of Korean frog virus 3 (FV3)-like ranaviruses through whole-genome sequencing. 韩国青蛙病毒3 （FV3）样病毒全基因组测序鉴定及系统发育分析

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-06-18 DOI: 10.3354/dao03922

Jongsun Kim, Haan Woo Sung, Tae Sung Jung, Eun Jin Park, Daesik Park

{"title":"Identification and phylogenetic analysis of Korean frog virus 3 (FV3)-like ranaviruses through whole-genome sequencing.","authors":"Jongsun Kim, Haan Woo Sung, Tae Sung Jung, Eun Jin Park, Daesik Park","doi":"10.3354/dao03922","DOIUrl":"https://doi.org/10.3354/dao03922","url":null,"abstract":"Infectious diseases, particularly those caused by members of the genus Ranavirus (Iridoviridae), have caused mass mortality events in amphibian populations worldwide. Frog virus 3 (FV3) infects a wide range of amphibian hosts and results in high mortality. Despite the global prevalence of FV3, its origin and routes of spread remain unclear, largely because of limited genetic data from limited geographic regions. This study aimed to classify the ranaviruses isolated in the Republic of Korea through whole-genome sequencing. We collected amphibian carcasses and both symptomatic and asymptomatic live amphibians. The asymptomatic amphibians were collected from locations with previous infections. Among the 278 amphibian samples collected from 24 locations, 44 were positive for ranavirus according to quantitative PCR (qPCR) analysis. We obtained whole-genome sequences from 5 isolates, all of which were identified as FV3-like ranaviruses and belonged to the Asian FV3 clade in the maximum likelihood phylogenetic tree. By comparative analysis of open reading frames (ORFs) and phylogenomic trees, the Korean isolates were further divided into 2 strains: FV3-Kor_MT (mountain lineage) and FV3-Kor_LL (lowland lineage). Our findings highlight the importance of surveillance of a wide range of amphibian species and facilitate phylogenetic analyses of global FV3-like strains, including newly verified Korean strains.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"166 ","pages":"1-15"},"PeriodicalIF":1.2,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148270322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Associations between Anisakis simplex (Nematoda: Anisakidae) and red vent syndrome in wild Atlantic salmon Salmo salar. 单纯异尖线虫（线虫纲：异尖线虫科）与野生大西洋鲑鱼红孔综合征的关系。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-06-18 DOI: 10.3354/dao03920

C McCormick, A J Reading, E T Nolan, N T Cook, I C Davidson, R H Richards, C F Williams

{"title":"Associations between Anisakis simplex (Nematoda: Anisakidae) and red vent syndrome in wild Atlantic salmon Salmo salar.","authors":"C McCormick, A J Reading, E T Nolan, N T Cook, I C Davidson, R H Richards, C F Williams","doi":"10.3354/dao03920","DOIUrl":"https://doi.org/10.3354/dao03920","url":null,"abstract":"The relationship between the anisakid nematode Anisakis simplex and red vent syndrome (RVS) was investigated through parasitological, clinical and pathological examinations of 124 wild adult Atlantic salmon Salmo salar, sampled from the River Dee, Wales, River Tyne, England, and River Tyne estuary between 2009 to 2013. All S. salar were infected with A. simplex, but those exhibiting RVS lesions displayed significantly higher infection intensities of A. simplex than unaffected individuals. S. salar exhibiting RVS lesions also displayed significantly higher infection intensities of A. simplex in the discrete location of the vent than unaffected fish. Up to 95% of total A. simplex infection intensities were found within the vent, with up to 83.6% localised within the outer ~5-10 mm of vent tissue. This suggests that the vent is a discrete and potentially favoured site of A. simplex. Intensity of infection of A. simplex in the vent did not always correlate with vent pathology. Moreover, internal inflammation and marked fibrogranulomatous changes were observed in the absence of associated haemorrhage, suggesting that visual reddening of the vent may not always occur in spite of significant A. simplex infections. Whilst fish exhibiting clinical RVS displayed significantly higher vent infection intensities, no correlation was identified between the severity of symptoms and A. simplex intensity.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"166 ","pages":"1-12"},"PeriodicalIF":1.2,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148270393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

White spot syndrome virus hypothetical protein GP017 functions as a putative RNA interference suppressor. 白斑综合征病毒假设蛋白GP017作为假定的RNA干扰抑制因子。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-06-18 DOI: 10.3354/dao03923

Xiaotong Ren, Mengting Wang, Yongzhong Lu

{"title":"White spot syndrome virus hypothetical protein GP017 functions as a putative RNA interference suppressor.","authors":"Xiaotong Ren, Mengting Wang, Yongzhong Lu","doi":"10.3354/dao03923","DOIUrl":"https://doi.org/10.3354/dao03923","url":null,"abstract":"White spot syndrome virus (WSSV) causes severe economic losses globally. Although RNA interference (RNAi) is a key antiviral defense in crustaceans, the co-existence of WSSV mRNA and siRNA observed in Fenneropenaeus chinensis during acute infection suggests dysfunction of the RNA-induced silencing complex. This led us to investigate whether WSSV encodes viral suppressors of RNAi (VSRs) to counteract host RNAi pathways at this stage. Through an integrated computational and experimental approach, we identified a hypothetical protein of WSSV, GP017 (YP_009220491.1), as a potential VSR. Computational docking revealed a potential interaction between GP017 and shrimp Argonaute 2 (AGO2), a core RNAi component. A mammalian cell-based reversal-of-silencing assay demonstrated that GP017 restored GFP expression by suppressing RNAi-mediated silencing in HEK293T cells, with an efficacy comparable to that of the well-characterized VSR P19. Furthermore, yeast 2-hybrid and bimolecular fluorescence complementation assays confirmed an interaction between GP017 and shrimp AGO2, supporting its role as a VSR. Bioinformatic analyses suggest a coordinated regulatory model for gp017, in which viral proteins WSV500 and WSV083 may interact with high-potential promoter regions. These findings provide the initial evidence of a WSSV-encoded VSR, offering insights into viral immune evasion and potential targets for antiviral strategies in shrimp aquaculture.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"166 ","pages":"1-12"},"PeriodicalIF":1.2,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148270387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sessile Zoothamnium sp. ciliates colonise the invasive Oriental river prawn Macrobrachium nipponense in a brackish estuary in Ukraine. 在乌克兰的咸淡水河口，无柄Zoothamnium sp.纤毛虫殖民入侵的东方河对虾日本沼虾。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-06-04 DOI: 10.3354/dao03919

Anastasiia Lepekha, Volodymyr Yuryshynets, Veronika Bartáková, Markéta Ondračková, Yuriy Kvach

{"title":"Sessile Zoothamnium sp. ciliates colonise the invasive Oriental river prawn Macrobrachium nipponense in a brackish estuary in Ukraine.","authors":"Anastasiia Lepekha, Volodymyr Yuryshynets, Veronika Bartáková, Markéta Ondračková, Yuriy Kvach","doi":"10.3354/dao03919","DOIUrl":"10.3354/dao03919","url":null,"abstract":"Sessilid ciliates are common epibionts of aquatic crustaceans, where mass colonisation of economically important prawns may lead to adverse effects on host health and ecosystem dynamics. The Oriental river prawn Macrobrachium nipponense, which is native to Asia, has recently expanded into European freshwater and brackish systems. As a host species, it may act as a vector for sessilid ciliates into new habitats, posing risks to native biota and aquaculture. We examined M. nipponense populations in brackish water bodies of southwestern Ukraine to assess the prevalence and localization of sessilid ciliates. Live and preserved specimens were microscopically examined. Morphological analysis focused on the distribution and abundance of Zoothamnium colonies on various body parts. Molecular material was also preserved for future species identification. Over 80% of prawns were found to carry large colonies of Zoothamnium sp., with high infestation intensity particularly on pereiopods and uropods. Ciliate aggregations often appeared near articulation points, which may obstruct mobility or respiration. Infestation patterns were consistent across sexes, though some correlations were noted between parasite load and reproductive condition in females. These results suggest that sessilid ciliates may exhibit parasitic characteristics under favourable conditions, undermining host performance. The expansion of M. nipponense may facilitate the introduction and establishment of such organisms across Europe. This study highlights the ecological implications of overlooked epibionts and stresses the importance of monitoring invasive host-epibiont complexes in aquatic environments.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"166 ","pages":"1-14"},"PeriodicalIF":1.2,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148155807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel dolphin morbillivirus epizootic in stranded striped dolphins in the western Mediterranean Sea, 2025. 2025年地中海西部搁浅条纹海豚中出现的新型海豚麻疹病毒流行病。

IF 1.2 4区农林科学

Diseases of aquatic organisms Pub Date : 2026-06-04 DOI: 10.3354/dao03918

Laura Martino, Martí Cortey, Juan Antonio Raga, Patricia Gozalbes, Mariona Leiva-Forns, Carlota Mendoza-Juan, Bernarda Bay, Lola Pérez, Mariano Domingo

{"title":"Novel dolphin morbillivirus epizootic in stranded striped dolphins in the western Mediterranean Sea, 2025.","authors":"Laura Martino, Martí Cortey, Juan Antonio Raga, Patricia Gozalbes, Mariona Leiva-Forns, Carlota Mendoza-Juan, Bernarda Bay, Lola Pérez, Mariano Domingo","doi":"10.3354/dao03918","DOIUrl":"10.3354/dao03918","url":null,"abstract":"Dolphin morbillivirus (DMV) epizootics have recurrently occurred in the western Mediterranean Sea since the first reported outbreak in 1990-1992. In August-November 2025, 5 stranded striped dolphins Stenella coeruleoalba were diagnosed with systemic DMV infection in the Spanish Mediterranean Sea. Dolphins were thin, and 4 of them had typical viral lesions of bronchiolointerstitial pneumonia, lymphoid depletion, and encephalitis. RT-PCR for DMV was positive in at least 2 organs in all dolphins, and viral antigen was detected by immunohistochemistry in 4 dolphins. Four dolphins died due to morbillivirus infection, while the other DMV-infected dolphin died from cranial trauma and tension pneumothorax. The viral genome recovered from the sample of one dolphin has higher identity to delphinid 2016-2017 Italian DMV sequences and to a fin whale strain from Denmark in 2016, and is approximately 1% distant from strains of previous epizootics in the Mediterranean Sea. The exact source of the infection is unknown, but direct contact with infected striped dolphins from other areas of the Mediterranean or a new DMV incursion from the Atlantic Ocean are possible.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"166 ","pages":"1-7"},"PeriodicalIF":1.2,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148155774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0