TAILIEUCHUNG - The first record of Kudoa yasunagai (Hsieh & Chen, 1984) (Myxosporea: Multivalvulida) parasitizing the brain of barhead SPINEFOOT Siganus virgatus (Valenciennes) from Vietnam

A brain-infecting myxozoan, Kudoa yasunagai (Hsieh & Chen, 1984), was identified using both morphological and molecular methods in a marine fish from Van Phong Bay, Khanh Hoa province, Vietnam. Cysts containing spores were observed in the brain of one out of 10 Siganus virgatus (Valenciennes) individuals (10%). The myxospores were radially symmetrical, containing a majority of 7 equal shell valves and polar capsules. | ACADEMIA JOURNAL OF BIOLOGY 2024 46 1 87 97 DOI 2615-9023 19453 THE FIRST RECORD OF Kudoa yasunagai Hsieh amp Chen 1984 Myxosporea Multivalvulida PARASITIZING THE BRAIN OF BARHEAD SPINEFOOT Siganus virgatus Valenciennes FROM VIETNAM Nguyen Ngoc Chinh1 Sho Shirakashi2 1 Institute of Ecology and Biological Resources Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Ha Noi Vietnam 2 Aquaculture Research Institute Kindai University 3153 Shirahama Nishimuro Wakayama 649-2211 Japan Received 20 November 2023 accepted 19 March 2024 ABSTRACT A brain-infecting myxozoan Kudoa yasunagai Hsieh amp Chen 1984 was identified using both morphological and molecular methods in a marine fish from Van Phong Bay Khanh Hoa province Vietnam. Cysts containing spores were observed in the brain of one out of 10 Siganus virgatus Valenciennes individuals 10 . The myxospores were radially symmetrical containing a majority of 7 equal shell valves and polar capsules. The spores measured µm in length µm in width and µm in thickness. Polar capsules measured µm in length and µm in width containing a filament inside. The SSU rDNA sequence from the Vietnamese specimen showed gt identity with K. yasunagai from Japan and Australia. This report marks a new geographical and host record for K. yasunagai. Keywords Kudoidae brain marine fish SSU rDNA Khanh Hoa province. Citation Nguyen Ngoc Chinh Sho Shirakashi 2024. The first record of Kudoa yasunagai Hsieh amp Chen 1984 Myxosporea Multivalvulida parasitizing the brain of barhead spinefoot Siganus virgatus Valenciennes from Vietnam. Academia Journal of Biology 46 1 87 97. https 2615-9023 19453 Corresponding author email shirakashi@ 87 Nguyen Ngoc Chinh Sho Shirakashi INTRODUCTION MATERIALS AND METHODS The Barhead spinefoot Siganus virgatus Fish sampling and parasite collection Valenciennes Perciformes Siganidae is a Ten .

• Sinh học
• Marine fish
• Khanh Hoa provinceKudoa yasunagai
• Brain infecting myxozoan
• Siganus virgatus
• Kudoa yasunagai
• Assessment the cost
• Return in marine fish production
• Marine fish production
• Fishery sector
• Caught in selected harbors
• kinds of marine fish farming techniques
• feeding fish
• freshwater fish
• aquariums
• freshwater aquarium
• tips for raising fish
• ornamental fish breeding
• Development of fish descaling machine
• Fish descaling machine
• Post harvest processing of fish
• Marine fisheries
• Fish food forms
• Selenium deficiency
• Glutathione peroxidase enzyme
• Farmed fish
• Protecting cell membranes
• Against oxidative damage
• Fish fauna
• Marine habitats
• Cu Lao Cham Hoi an biosphere reserve
• World biosphere reserve
• Characteristics of fish fauna
• Summary of Biological Thesis
• Hepatic necrosis disease in marine fish
• Vaccine against nephrotic
• Mutant strains of bacteria
• Prevention of nephrotic disease in fish
• Marine sponges
• Bioactive compounds
• Fish and shellfish pathogens
• Casein starch peptone yeast extract
• Analysis of morphological
• Chemosensory systems
• Marine fishes
• Olfaction provides fish
• Hierarchical position
• Vietnamese fish
• Digenean diversity
• Reef fishes in Khanh Hoa province
• Coral reef
• Number and size of the reef fish collected
• Digenea species on coral reef fish
• WWFs mission is to conserve
• Aquaculture in general
• fish farming in particular
• during the writing
• The report looks into
• The report is a wake up
• storage and fish processing
• aquaculture projects
• all kinds of marine life
• ways of cooking shrimp
• shrimp farming techniques
• water quality management
• the waste management measures
• Journal of Marine Science and Technology
• The accuracy of fish otolith analysis
• Some validation methods
• Length frequency modes
• Validating the first growth increment
• BMC Genomics
• Atlantic salmon
• Marine ingredients
• Terrestrial ingredients
• Liver transcriptome
• Marine eutrophication and the Baltic Sea
• Eutrophication of the Gulf of Finlan
• Changes in fi sh communities in the Baltic Sea
• Marine species
• Migratory species
• Freshwater species
• Tạp chí Khoa học
• Tạp chí sinh học
• Công nghệ sinh học
• Vietnams fauna
• Biological Resources
• Electrochemical Oxidation
• Toxic Organics
• Waste Water
• Impact of Sewage
• Sewage and Industrial
• Effluents on Soil
• chính sách kinh tế
• dự án nông nghiệp
• kỹ thuật nông lâm
• trồng trọt chăn nuôi
• kinh doanh nông nghiệp
• support and pressures
• government mandates
• Premature and Sick Newborn
• Long Term Effects
• Breastfeeding
• Breastfeeding and Infant Growth
• Journal of Zoology
• Turkish marine waters
• Plastic pollution
• Trachurus mediterraneus
• Mullus barbatus barbatus
• BMC Genetics
• Ctenolabrus rupestris
• Marker validation
• Population genomics
• Marine fish populations