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AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
| Species | Antithamnion amphigeneum [WoRMS] | |
| Authority | A.Millar, 1990 | |
| Family | Ceramiaceae | |
| Order | Ceramiales | |
| Class | Florideophyceae | |
| Phylum | Rhodophyta | |
| Synonym (?) | Anthitamnion algeriense Verlaque & Seridi 1991 | |
| Sub-species level (?) | Not entered |
| Native origin (?) | Ocean: Pacific --> Ocean region: SW Pacific References (not structured): Millar, A.J.K. (1990). Marine red algae of the Coffs Harbour region, northern New South Wales. Australian Systematic Botany 3: 293-593 |
| Life form / Life stage (?) |
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| Sociability / Life stage (?) |
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| Reproductive frequency (?) | Not entered |
| Reproductive type (?) | Asexual References: Secilla, A., Gorostiaga, J. M., Díez, I., Santolaria, A. 1997. Antithamnion amphigeneum (Ceramiales, Rhodophyta) from the European Atlantic Coasts. Botanica Marina, 40, pp.329-332. Comments: Vegetative, tetrasporangia |
| Developmental trait (?) | Not entered |
| Characteristic feeding method / Life stage (?) |
References (not structured): Secilla, A., Gorostiaga, J. M., Díez, I., Santolaria, A. 1997. Antithamnion amphigeneum (Ceramiales, Rhodophyta) from the European Atlantic Coasts. Botanica Marina, 40, pp.329-332. |
| Mobility / Life stage (?) |
References (not structured): Mačić, V., Ballesteros, E. 2016. First record of the alien alga Antithamnion amphigeneum (Rhodophyta) in the Adriatic Sea. Acta Adriatica, 57(2), pp. 315-320. Comments: Permanent attachment as adult. A. amphigeneum also is growing mostly on mussel shells (Mytilus galloprovincialis) but also on other organisms on the vertical walls. |
| Salinity tolerance range (?) | Unknown Comments: Not available. |
| Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Mačić, V., Ballesteros, E. 2016. First record of the alien alga Antithamnion amphigeneum (Rhodophyta) in the Adriatic Sea. Acta Adriatica, 57(2), pp. 315-320. |
| Toxicity / Life stage (?) | Unknown |
| Bioaccumulation association (?) | Unknown Comments: Not available. |
| Known human health impact? | Known Comments: Harmless. |
| Known economic impact? | Not known Comments: Not available. |
| Known measurable environmental impact? | Not known Comments: Not available. |
| 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 [Accessed 1 July 2024]. |
| Association with vessel vectors (?) | Biofouling References: BOUDOURESQUE C.F., VERLAQUE M., 2010. Is global warming involved in the success of seaweed introductions in the Mediterranean Sea? In : Seaweeds and their role in globally changing environments. Israel A., Einav R., Seckbach J. (eds.), Springer publ., Dordrecht, pp 31-50. |
| Molecular information | Not available |
| Last update by | Paola Forni, 2026-04-20 |