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AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
| Species | Bonamia ostreae [WoRMS] | |
| Authority | Pichot, Comps, Tigé, Grizel & Rabouin, 1980 | |
| Family | Haplosporiidae | |
| Order | Haplosporida | |
| Class | Ascetosporea | |
| Phylum | Cercozoa | |
| Synonym (?) | ||
| Sub-species level (?) | Not entered |
| Native origin (?) | Not entered Comments: N Pacific Northeast Pacific NE Pacific |
| Life form / Life stage (?) |
References (not structured): Culloty, S. C., Mulcahy, M. F. 2007. Bonamia ostreae in the native oyster Ostrea edulis. Marine Environment and Health Series, 29, pp. 40. Comments: Bonamia ostreae is a Haplosporidia protozoan parasite infecting haemocytes of flat oysters, Ostrea edulis, and inducing physiological disorders and eventually death of the animal. |
| Sociability / Life stage (?) | Unknown |
| Reproductive frequency (?) | Iteroparous |
| Reproductive type (?) | Asexual References: Culloty, S. C., Mulcahy, M. F. 2007. Bonamia ostreae in the native oyster Ostrea edulis. Marine Environment and Health Series, 29, pp. 40. Comments: The parasite multiplies by binary fission. |
| Developmental trait (?) | Unknown |
| Characteristic feeding method / Life stage (?) |
Comments: Parasite. |
| Mobility / Life stage (?) |
|
| Salinity tolerance range (?) | Exact range: 5 - 45 References: Arzul, I., Gagnaire, B., Bond, C., Chollet, B., Morga, B., Ferrand, S., Robert, M., Renault, T. (2009). Effects of temperature and salinity on the survival of Bonamia ostreae, a parasite infecting flat oysters Ostrea edulis. Diseases of Aquatic Organisms, 85(1), pp. 67-75. Comments: High salinities (35, 40 and 45 psu) appear to favour parasite survival. The parasite can survive in lower salinity environments, but its proliferation and infectivity may be reduced in salinity levels below 15 ppt. |
| Habitat modifying ability potential (?) | Unknown |
| Toxicity / Life stage (?) | Not relevant References: Culloty, S. C., Mulcahy, M. F. 2007. Bonamia ostreae in the native oyster Ostrea edulis. Marine Environment and Health Series, 29, pp. 40. Comments: Bonamia ostreae parasitizes the blood cells, or haemocytes, and the cells of the gill of the oyster. It may also be seen free in the tissues. The early stages of the infection are often accompanied by an infiltration of haemocytes into the tissues of the gill and mantle and around the gut. |
| Bioaccumulation association (?) | Unknown |
| Known human health impact? | Known References: Canadian Food Inspection Agency (CFIA) (2013). Infection with Bonamia ostreae. [http://www.inspection.gc.ca/animals/aquatic-animals/diseases/reportable/bonamia-ostreae/fact-sheet/eng/1362582424837/1362582620961] (2024-07-08). Comments: The causal agent of B. ostreae is not a risk to human health. |
| Known economic impact? | Known References: Arzul, I., Miossec, L., Blanchet, E., Garcia, C., François, C., Joly, J. P. 2006. Bonamia ostreae and Ostrea edulis: a stable host-parasite system in France?. In XI International Symposium for Veterinary Epidemiology and Economics, Cairns, Queensland, Australia, pp. 6-11. Comments: Bonamiosis and marteiliosis, another protozoan disease appeared in the seventies, drastically reduced the French flat oyster production from 20 000 tonnes in 1970 to less than 2000 tonnes after 1981. In 2001, about 1650 t of flat oysters were marketed in France. |
| Known measurable environmental impact? | Known References: Culloty, S. C., Mulcahy, M. F. 2007. Bonamia ostreae in the native oyster Ostrea edulis. Marine Environment and Health Series, 29, pp. 40. Comments: B. ostreae has spread throughout many countries where flat oyster production occurs. The parasite can cause over 90% mortality among oysters. |
| 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 References: Culloty, S. C., Mulcahy, M. F. 2007. Bonamia ostreae in the native oyster Ostrea edulis. Marine Environment and Health Series, 29, pp. 40. Comments: The parasite is believed to have initially been spread by movements of oysters in the 1970’s in the United States from California to Maine and Washington and to France and Spain in Europe. |
| Molecular information | Available NCBI (https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?term=bonamia+ostreae) |
| Last update by | Sandra Gečaitė, 2024-07-17 |