Mass mortalities associated with viral nervous necrosis in hatchery-reared sea bass Lates calcarifer in the Philippines
- Global styles
- MLA
- Vancouver
- Elsevier - Harvard
- APA
- Help
Download URL
www.jircas.affrc.go.jp日付
2004Page views
1,050ASFA keyword
AGROVOC keyword
Taxonomic term
Metadata
アイテムの詳細レコードを表示するCited times in Scopus
Share
抄録
Viral nervous necrosis (VNN), also known as viral encephalopathy and retinopathy (VER), is an emerging disease affecting larvae and juveniles of many farmed marine fish species in Asia, Australia, Europe and North America. Mass mortality occurred in 14-day old larval sea bass Lates calcarifer at a hatchery in the Philippines associated with clinical signs such as abnormal swimming behavior and pale-gray discoloration of the body. Histological investigations in moribund fish revealed marked vacuolation in the retina and brain. Cytopathic effects (CPE) were observed in SSN-1 cells inoculated with the tissue filtrate of affected sea bass. A piscine nodavirus, the causative agent of VNN, was detected in the affected tissues and SSN-1 cells inoculated with the tissue filtrate of affected fish by RT-PCR. Electron microscopy revealed non-enveloped viral particles, 22-28 nm in diameter, in the cytoplasm of the brain and retina of affected fish and in the cytoplasm of VNN-infected SSN-1 cells after CPE appeared. These results indicate that mass mortality of sea bass larvae in the Philippines was caused by a piscine nodavirus.
Suggested Citation
Maeno, Y., de la Peña, L. D., & Cruz-Lacierda, E. R. (2004). Mass mortalities associated with viral nervous necrosis in hatchery-reared sea bass Lates calcarifer in the Philippines. Japan Agricultural Research Quarterly , 38(1), 69-73. https://doi.org/10.6090/jarq.38.69
Type
ArticleISSN
0021-3551Collections
- Journal Articles [1215]
Related items
Showing items related by title, author, creator and subject.
-
Aquaculture in the Philippines
Aypa, Simeona M. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1995)Aquaculture is regarded as the most promising source of protein food in the years ahead. Milkfish and Nile tilapia are the major fishes now produced but groupers, sea bass, rabbitfish, red snappers, carps, and catfishes ... -
Sea bass culture
Southeast Asian Fisheries Development Center, Aquaculture Department (Aquaculture Department, Southeast Asian Fisheries Development Center, 2017)The brochure contains information on the culture of sea bass from the hatchery, nursery and grow-out phases. -
The culture of seabass
Aldon, E. T. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1997)Seabass (Lates calcarifer) are raised in ponds and cages in Southeast Asia. Details are given of the 2 phases involved in the pond and culture culture systems -- nursery and grow-out. Both monoculture and polyculture systems ...