AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Haplosporidium armoricanum [WoRMS] | |
Authority | (Van Banning, 1977) | |
Family | Haplosporiidae | |
Order | Haplosporida | |
Class | Ascetosporea | |
Phylum | Cercozoa | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Not known Comments: Not available. |
Life form / Life stage (?) |
Comments: The phylum Haplosporidia contains coelozoic and histozoic, spore-forming, obligate protozoan endoparasites that infect a number of freshwater and marine invertebrates including bivalves, crustaceans, and polychaetes. In amphipods, haplosporidians cause systemic infection resulting in a range of pathologies. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Not known Comments: Not available. |
Reproductive type (?) | Asexual Sexual |
Developmental trait (?) | Unknown Comments: Not available. |
Characteristic feeding method / Life stage (?) | Unknown References (not structured): Hine, P. M., Engelsma, M. Y., St J, W. 2007. Ultrastructure of sporulation in Haplosporidium armoricanum. Diseases of Aquatic Organisms, 77(3), pp. 225-233. Comments: Parasite. |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Unknown Comments: Not available. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Known References: Lynch, S.A., A. Villalba, E. Abollo, M. Engelsma, N.A. Stokes and S.C. Culloty. 2013. The occurrence of haplosporidian parasites, Haplosporidium nelsoni and Haplosporidium sp., in oysters in Ireland. Journal of Invertebrate Pathology, 112, pp. 208-212. Comments: Although the disease is fatal, the prevalence of infection to date has been low (less than 4%) with insignificant impact on the flat oyster culture industry in Europe. |
Known measurable environmental impact? | Known References: Hine, P. M., Engelsma, M. Y., St J, W. 2007. Ultrastructure of sporulation in Haplosporidium armoricanum. Diseases of Aquatic Organisms, 77(3), pp. 225-233. Comments: Host species: Ostrea edulis and Ostrea angasi. Possibly also in Olympia oysters, Ostrea conchaphila.Oysters in late stages of the infection are often thin and watery in appearance and have a characteristic brownish colour caused by masses of spores in the connective tissue of all organs. |
Included in the Target Species list? | No References: HELCOM, 2009. Alien Species and Ballast Water [PDF]. Available at: (https://archive.iwlearn.net/helcom.fi/stc/files/shipping/Table_2_Alienspecies_%20lists_2009.pdf) |
Association with vessel vectors (?) | Unknown Comments: Not available. |
Molecular information | Not available |
Created by | Romualda Chuševė, 2011-11-03 |
Last update by | Sandra Gečaitė, 2024-07-15 |