- 期刊
- OpenAccess
New Microsporidia, Glugea sardinellensis n. sp. (Microsporea, Glugeida) Found in Sardinella aurita Valenciennes, 1847, Collected off Tunisian coasts
摘要
A new microsporidia Glugea sardinellensis n. sp. found in the teleost fish Sardinella aurita Valenciennes collected from the Tunisian coasts. The parasite develops in a large xenomas measuring 1-16 mm in diameter and is generally visible with naked eye in the connective tissue around the pyloric caeca of the host. Xenoma were often rounded, but would be occasionally ovoid or irregular shape, generally creamy but rarely opaque, and filled with mature spores. The spores were unikaryotic pyriform measuring 5-5.5 (5.25±0.24) μm in length and 2.5-3 (2.75±0.24) μm in width. The posterior vacuole was large and occupied more than half of the spore. Ultrastructural study indicated that the mature spore has 13-14 coils of polar filament arranged in one layer, and a rough exospore. Intermediate stages were rare and randomly distributed in the xenoma. Merogonial and sporogonial stages were uni or binucleate. The plasma membrane surrounding the meront was irregular and indented. The mean prevalence was 18.3% and it varied according to season and locality. The distribution of prevalence according to fish size indicated that small fish were primarily affected. Phylogenetic analysis using the partial sequence of the SSU rDNA showed consistent association with species of the genus Glugea. The most closely related species was Glugea atherinae Berrebi, 1979 with 98.5% similarity.
關鍵字
Glugea ； fish parasites ； Mediterranean Sea ； phylogeny ； Gulf of Gabès ； round sardinella ； marine延伸閱讀
- Randall, J. E., & Yamakawa, T. (2006). Parapercis phenax from Japan and P. banoni from the Southeast Atlantic, New Species of Pinguipedid Fishes Previously Identified as P. roseoviridis. Zoological Studies, 45(1), 1-10. https://www.airitilibrary.com/Article/Detail?DocID=10215506-200601-201306060031-201306060031-1-10
- Kostoïngue, B., Diebakate, C., Faye, N., & Toguebaye, B. S. (2001). Presence of Myxosporidea (Myxozoa: Myxosporea) of the Genus Henneguya Thelohan, 1892 in Freshwater Fishes from Chad (Central Africa). Acta Protozoologica, 40(2), 117-123. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200106-201012290001-201012290001-117-123
- Gong, J., Lin, X. F., & Song, W. B. (2003). Redescription of a Poorly-known Marine Cyrtophorid Ciliate, Dysteria pusilla (Claparède et Lachmann, 1859) (Protozoa: Ciliophora: Cyrtophorida) from Qingdao, China. Acta Protozoologica, 42(3), 215-221. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200309-201012290010-201012290010-215-221
- Neves, A., Sequeira, V., Vieira, A. R., Silva, E., Silva, F., Duarte, A. M., Mendes, S., Ganhão, R., Assis, C., Rebelo, R., Magalhães, M. F., Gil, M. M., & Gordo, L. S. (2022). Reproduction of the Blue Jack Mackerel, Trachurus picturatus, in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns. Zoological Studies, 61(), 1-15. https://doi.org/10.6620/ZS.2022.61-41
- Rahma, Y. A., Gaber, R. A., & Ahmed, A. K. (2016). First Record of Anisakis simplex Third-Stage Larvae (Nematoda, Anisakidae) in European Hake Merluccius merluccius lessepsianus in Egyptian Water. Journal of Parasitology Research, 2016(), 242-249. https://doi.org/10.1155/2016/9609752