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WRiMS taxon details
original description
(of Maeotias inexspectata Ostroumoff, 1896) Ostroumoff A. (1896). Научные результаты экспедищи "Атманая" [Résultats scientifiques de I'expédition d'Atmanai]. <em>Bulletin de l'Académie impériale des sciences de St.-Pétersbourg.</em> (5)4(4): 389-408, pl. 1., available online at https://www.biodiversitylibrary.org/page/35157361
page(s): 402, pl. 1 figs 1-3 [details]
original description
(of ) Modeer A. (1791). Tentamen systematis medusarum stabiliendi. <em>Nova acta physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum.</em> 8(Appendix): 19-34., available online at https://www.biodiversitylibrary.org/page/42019836
page(s): 28 [details]
context source (Introduced species)
Katsanevakis, S.; Bogucarskis, K.; Gatto, F.; Vandekerkhove, J.; Deriu, I.; Cardoso A.S. (2012). Building the European Alien Species Information Network (EASIN): a novel approach for the exploration of distributed alien species data. <em>BioInvasions Records.</em> 1: 235-245., available online at http://easin.jrc.ec.europa.eu [details] Available for editors 
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
basis of record
Simm, M.; Põllumäe, A. (2006). Distribution and population dynamics of selected pelagic alien invertebrate species in Estonian marine waters, in: Ojaveer, H.; Kotta, J. (Ed.) (2006). Alien invasive species in the north-eastern Baltic Sea: population dynamics and ecological impacts. Estonian Marine Institute Report Series, 14: pp. 6-11. (look up in IMIS) [details]
basis of record
Rees, J. T.; Gershwin, L. (2000). Non-indigenous hydromedusae in California's upper San Francisco Esturary: life cycles, distribution, and potential environmental impacts. <em>Scientia Marina.</em> 64., available online at http://www.icm.csic.es/scimar/pdf/64/sm64s1073.pdf [details] Available for editors
additional source
Vervoort, W.; Schuchert, P. & van der Land, J. (2000-2007). as a contribution to UNESCO-IOC Register of Marine Organisms. (look up in IMIS) [details]
additional source
Mills, C.; Rees, J. T. (2000). New observations and corrections concerning the trio of invasive hydromedusae <i>Maeotias marginata (=M. inexpectata), Blackfordia virginica</i>, and <i>Moreisia</i> sp. in the San Francisco Estuary. Scientia Marina. 64: 151-155., available online at https://doi.org/10.3989/scimar.2000.64s1151 [details] Available for editors
additional source
Species 2000, available online at http://www.sp2000.org [details]
original description (unavailable nomenclaturally)
Baster, J. (1759-1765). Opuscula subseciva. Observationes miscellaneas de animalculis et plantis quibusdam marinis, eorumque ovariis et seminibus continentia. <em>[book series].</em> volume 1:1-148, pls. 1-16 [ 3 parts, 1759, 1760, 1761]; vol. 2:1-150, pls. 1-13. [3 parts 1762, 1765, 1765]., available online at http://www.biodiversitylibrary.org/item/37988
page(s): 55-58, pl 5 fig. 2 [details] 
From editor or global species database
Introduced species remark The provenance or origin of the species is ‘uncertain’ / ‘unknown’
Maeotias inexpectata Ostroumoff, 1896, is now regarded as a synonym of M. marginata. Maeotias inexpectata was originally described from the Black Sea, all other occurrences are considered introductions. Väinölä & Oulasvirta (2001) (see page 402) acknowledge that the species was first found in Holland (in 1762), and only a century later in the Black Sea. [details]From regional or thematic species database
Introduced species remark United States part of the North Pacific Ocean (Marine Region) Overall, abundance and distribution of medusae of these three hydrozoans in Suisun Marsh depended on seasonal stability of environmental conditions that favored blooms. While harmful effects have yet to be demonstrated, they could become more of a problem as both sea level and water temperatures rise, especially given the combined range of environmental conditions at which the three species occur. [details]
Introduced species vector dispersal Finnish part of the Baltic Sea (Marine Region) Ships: accidental with ballast water, sea water systems, live wells or other deck basins [details]
Introduced species vector dispersal in French part of the Bay of Biscay (Marine Region) : Canals: natural range expansion through man-made canals [details]
Introduced species vector dispersal in France (Nation) : May have entered via shipping or naturally from Estonian waters. [details]
Introduced species vector dispersal in French part of the Bay of Biscay (Marine Region) : Shipping [details]
Introduced species vector dispersal in North Atlantic Ocean (IHO Sea Area) : Potential for spread via ballast water. [details]
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