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AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Diadumene lineata [WoRMS] | |
Authority | (Verrill, 1869) | |
Family | Diadumenidae | |
Order | Actiniaria | |
Class | Anthozoa | |
Phylum | Cnidaria | |
Synonym (?) | Orange Striped Green Sea Anemone | |
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Pacific --> Ocean region: NW Pacific Comments: North Pacific |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Asexual Sexual References: Rudy Jr, P., Rudy, L. H., Shanks, A., & Butler, B. A. (2013). Diadumene lineata. Oregon Estuarine Invertebrates, Second Edition. Comments: Diadumene can reproduce sexually, by releasing eggs and sperm into the water, and asexually by longitudinal fission, or by a method called pedal laceration. D. lineata, sexual reproduction has only been observed in Japan; while all of the introduced populations that have been studied, apparently reproduce only asexually. |
Developmental trait (?) | Not entered |
Characteristic feeding method / Life stage (?) |
Comments: D. lineata eats small crustaceans and annelids. |
Mobility / Life stage (?) |
References (not structured): Rudy Jr, P., Rudy, L. H., Shanks, A., & Butler, B. A. (2013). Diadumene lineata. Oregon Estuarine Invertebrates, Second Edition. Comments: After fertilization, it takes eighteen hours for the embryo to develop into a swimming planula larva. Diadumene is considered one of the faster anemones and, in some studies, has been reported moving three to four inches in an hour. |
Salinity tolerance range (?) | Venice system: 5. α-Mesohaline [10-18psu] 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References: Podbielski, I., Bock, C., Lenz, M., Melzner, F. 2016. Using the critical salinity (S crit) concept to predict invasion potential of the anemone Diadumene lineata in the Baltic Sea. Marine Biology, 163, pp. 1-15. Comments: It can survive for two weeks in a contracted state at salinities of 2.5 to 5 PSU, though the lower limit for feeding and prolonged survival is around 12 PSU. At a salinity of 7, anemones ceased to reproduce asexually, their biomass decreased and metabolic depression.D. lineata has the potential to invade the Kattegat and Skagerrak regions with salinity >10. However, salinities of the Baltic Proper (salinity <8) currently seem to constitute a physiological limit for the species. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers |
Toxicity / Life stage (?) | Not relevant Comments: The catch tentacles are used only for stinging, not feeding, and serve to keep anemones separate. |
Bioaccumulation association (?) | Unknown |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Not known Comments: No economic or ecological impacts have been reported for this species. |
Known measurable environmental impact? | Not known Comments: Not available. |
Included in the Target Species list? | Yes 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 (?) | Biofouling References: Podbielski, I., Bock, C., Lenz, M., Melzner, F. 2016. Using the critical salinity (S crit) concept to predict invasion potential of the anemone Diadumene lineata in the Baltic Sea. Marine Biology, 163, pp. 1-15. Comments: D. lineata has been introduced to port areas via ship hull fouling before, but other vectors, such as imported oyster cultures or attachment to floating seaweed, could likewise play a role for the global dispersal of this species. Another possibility is the introduction via ballast water. Unidentified actiniaria have been found in ship ballast tanks before. |
Molecular information | Available BOLD: http://www.boldsystems.org/index.php/Public_SearchTerms |
Created by | Romualda Chuševė, 2011-11-03 |
Last update by | Sandra Gečaitė, 2024-07-11 |