AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Maeotias marginata [WoRMS] | |
Authority | (Modeer, 1791) | |
Family | Olindiidae | |
Order | Limnomedusae | |
Class | Hydrozoa | |
Phylum | Cnidaria | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | LME: 62. Black Sea LME: A2. Caspian Sea References (not structured): Vainola R, Oulasvirta P. 2001. The first record of Maeotias marginata (Cnidaria, Hydrozoa) from the Baltic Sea: a Pontocaspian invader. Sarsia, 86: 401-404. Comments: Ponto-Caspian |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
References (not structured): Schroeter, R. E. (2008). Biology and long-term trends of alien hydromedusae and striped bass in a brackish tidal marsh in the San Francisco Estuary. University of California, Davis. |
Reproductive frequency (?) | Iteroparous References (not structured): Schroeter, R. E. (2008). Biology and long-term trends of alien hydromedusae and striped bass in a brackish tidal marsh in the San Francisco Estuary. University of California, Davis. |
Reproductive type (?) | Asexual Sexual References: Mills, C. E.; Sommer, F. (1995). "Invertebrate introductions in marine habitats: two species of hydromedusae (Cnidaria) native to the Black Sea, Maeotias inexspectata and Blackfordia virginica, invade San Francisco Bay". Marine Biology. 122 (2): 279–288 |
Developmental trait (?) | Direct development References: Schroeter, R. E. (2008). Biology and long-term trends of alien hydromedusae and striped bass in a brackish tidal marsh in the San Francisco Estuary. University of California, Davis. |
Characteristic feeding method / Life stage (?) |
References (not structured): Schroeter, R. E. (2008). Biology and long-term trends of alien hydromedusae and striped bass in a brackish tidal marsh in the San Francisco Estuary. University of California, Davis. Comments: Maeotias marginata had a wide variety of prey in their gut contents including pelagic, benthic and terrestrial organisms, with pelagic prey making u p a majority of the diet. The most abundant taxonomic groups in their study (excluding copepod egg sacs from the total count) were the barnacle nauplii (39%), various stages of copepods (30%), and crab zoea (27%). |
Mobility / Life stage (?) |
References (not structured): Schroeter, R. E. (2008). Biology and long-term trends of alien hydromedusae and striped bass in a brackish tidal marsh in the San Francisco Estuary. University of California, Davis. Comments: Maeotias marginata have a typical hydromedusan vertical feeding migration, rising to the surface and drifting back to the bottom exumbrella down with tentacles outstretched where they may stay for a period of time. |
Salinity tolerance range (?) | Exact range: 0.9 - 13 References: Paavola M, Olenin S, Leppäkoski E (2005) Are invasive species most successful in habitats of low native species richness across European brackish water seas? Estuarine, Coastal and Shelf Science 64 (2005) 738-750 Vainola R, Oulasvirta P (2001) The first record of Maeotias marginata (Cnidaria, Hydrozoa) from the Baltic Sea: a Pontocaspian invader. Sarsia, 86: 401-404. Schroeter, R. E. (2008). Biology and long-term trends of alien hydromedusae and striped bass in a brackish tidal marsh in the San Francisco Estuary. University of California, Davis. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Unknown Comments: Not available. |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Not known Comments: Not available. |
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 [Accessed 1 July 2024]. |
Association with vessel vectors (?) | Ballast waters References: Väinölä, R., Oulasvirta, P. 2001. The first record of Maeotias marginata (Cnidaria, Hydrozoa) from the Baltic Sea: a Pontocaspian invader. Sarsia, 86(4-5), pp. 401-404. |
Molecular information | Available NCBI (https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?term=Maeotias+marginata) |
Last update by | Sandra Gečaitė, 2024-08-08 |