AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Hemimysis anomala [WoRMS] | |
Authority | G.O. Sars, 1907 | |
Family | Mysidae | |
Order | Mysida | |
Class | Malacostraca | |
Phylum | Arthropoda | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | LME: A2. Caspian Sea Comments: Ponto-caspian |
Life form / Life stage (?) |
References (not structured): Janas U, Wysocki P (2005) Hemimysis anomala G. O. Sars, 1907 (Crustacea, Mysidacea) – first record in the Gulf of Gdansk. Oceanologia 47: 405-408 Comments: Most mysid species are found in marine environments, but 3% (25 species) inhabit fresh to brackish water. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous References (not structured): Pothoven SA, Grigorovich IA, Fahnenstiel GL, Balcer MD (2007) Introduction of the Ponto-Caspian bloody-red mysid Hemimysis anomala into the Lake Michigan basin. Journal of Great Lakes Research, 33:285-292 |
Reproductive type (?) | Sexual References: Pothoven SA, Grigorovich IA, Fahnenstiel GL, Balcer MD (2007) Introduction of the Ponto-Caspian bloody-red mysid Hemimysis anomala into the Lake Michigan basin. Journal of Great Lakes Research, 33:285-292 Comments: Sex can be determined by consulting the 4th pleopods: in males, these are elongated and modified for copulation, whereas females have rudimentary pleopods. Adult females also have a brood pouch. |
Developmental trait (?) | Brooding References: Ioffe TI (1973) Pool for acclimatization of invertebrates in the USSR. Izv. Gos. Nauchno-Issled. Inst. Ozern. Rechn. Rybn. Khoz, 84:18-68 Comments: Ioffe (1973) observed reproduction in females of the first generation of the year 45 days after release, with the second and third generations developing even more rapidly and reaching maturity within one month. In total, four generations were produced in one year, the highest recorded in any study. |
Characteristic feeding method / Life stage (?) |
References (not structured): Ketelaars HAM, Lambreqts-van de FE, Clundert CJ, Carpentier AJ, Waqenvoort, Hooqenboezem W (1999) Ecological effects of the mass occurrence of the Ponto-Caspian invader, Hemimysis anomala G.O. Sars, 1907 (Crustacea: Mysidacea), in a freshwater storage reservoir in the Netherlands, with notes on its autecology and new records. Hydrobiologia 394: 233-248 Verslycke, T., Janssen, C., Lock, K., & Mees, J. (2000). First occurrence of the pontocaspian invader Hemimysis anomala (Sars, 1907) in Belgium (Crustacea: Mysidacea). Belgian Journal of Zoology, 130(2), 157-158. Comments: H. anomala is an opportunistic omnivore that feeds primarily on zooplankton, particularly cladocerans, but also consumes detritus (plant and animal remains), phytoplankton (particularly green algae and diatoms), and insect larvae, and is occasionally cannibalistic. Younger individuals (‹ 4mm total length) feed mainly on phytoplankton. |
Mobility / Life stage (?) |
References (not structured): Holdich D, Gallagher S, Rippon L, Harding P, Stubbington R (2005) The invasive Ponto-Caspian mysid, Hemimysis anomala, reaches the UK. Aquatic Invasions, 1:4-6 Janas U, Wysocki P (2005) Hemimysis anomala G. O. Sars, 1907 (Crustacea, Mysidacea) – first record in the Gulf of Gdansk. Oceanologia 47: 405-408 Comments: Individuals remain near profundal sediments during the day, migrate in swarms to the upper water column at twilight, then return to the profundal zone at dawn.Only males tend to undergo these migrations. |
Salinity tolerance range (?) | Exact range: 0.5 - 8.8 References: Olenin, S., & Daunys, D. (2004). Coastal typology based on benthic biotope and community data: the Lithuanian case study. Coastline Reports, 4, 65-84. 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 Verslycke, T., Janssen, C., Lock, K., & Mees, J. (2000). First occurrence of the pontocaspian invader Hemimysis anomala (Sars, 1907) in Belgium (Crustacea: Mysidacea). Belgian Journal of Zoology, 130(2), 157-158. Janas U, Wysocki P (2005) Hemimysis anomala G. O. Sars, 1907 (Crustacea, Mysidacea) – first record in the Gulf of Gdansk. Oceanologia 47: 405-408 Arbaciauskas K (2002) Ponto-Caspian amphipods and mysids in the inland waters of Lithuania: history of introduction, current distribution and relations with native Malacostracans. In: Leppakoski E., Gollasch S. and Olenin S.(eds), Invasive Aquatic species of Europe - distribution impacts and management. Kluwer Academic Publishers, Dordrecht, Boston, London: 104-115 Salemaa H, Hietalahti V (1993) Hemimysis anomala G. O. Sars (Crustacea : Mysidacea) - immigration of a Pontocaspian mysid into the Baltic Sea. Ann. Zool. Fennica, 30: 271-276 Comments: Field records: Belgium at 3.5 PSU (Verslycke et al 2000); Poland at 6.7-7.5 PSU (Janas & Wysoki 2005) |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Ketelaars, H. A., Lambregts-van de Clundert, F. E., Carpentier, C. J., Wagenvoort, A. J., & Hoogenboezem, W. (1999). Ecological effects of the mass occurrence of the Ponto–Caspian invader, Hemimysis anomala GO Sars, 1907 (Crustacea: Mysidacea), in a freshwater storage reservoir in the Netherlands, with notes on its autecology and new records. Hydrobiologia, 394, 233-248. Comments: voracious predator can affect zooplankton composition, with preference for cladocerans |
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? | Known References: AquaNIS. Editorial Board, 2015. Information system on Aquatic Non-Indigenous and Cryptogenic Species. World Wide Web electronic publication. www.corpi.ku.lt/databases/aquanis. Version 2.36+. Accessed 2021-07-23. Ketelaars, H.A.M., Lambregts-van de Clundert, F.E., Carpentier, C.J., Wagenvoort, A.J., Hoogenboezem, W. 1999. Ecological effects of the mass occurrence of the Ponto-Caspian invader, Hemimysis anomala G.O. Sars, 1907 (Crustacea: Mysidacea), in a freshwater storage reservoir in the Netherlands, with notes on its autecology and new records. Hydrobiologia, 394: 233-248. Verslycke, T., Janssen, C., Lock, K., Mees, J. 2000. First occurrence of the Pontocaspian invader Hemimysis anomala (Sars, 1907) in Belgium (Crustacea: Mysidacea). Belgian Journal of Zoology, 130: 157-158. Comments: Decline in prey taxa (decline in the Cladocera, Ostracoda and Rotifera) after establishment; outcompetes species with similar dietary requirements for these prey (Ketelaars et al. 1999; Verslycke et al. 2000). |
Included in the Target Species list? | Yes Comments: Assessed by the COMPLETE project experts (2021), included in target species list. |
Association with vessel vectors (?) | Unknown References: Ketelaars, H. A., Lambregts-van de Clundert, F. E., Carpentier, C. J., Wagenvoort, A. J., & Hoogenboezem, W. (1999). Ecological effects of the mass occurrence of the Ponto–Caspian invader, Hemimysis anomala GO Sars, 1907 (Crustacea: Mysidacea), in a freshwater storage reservoir in the Netherlands, with notes on its autecology and new records. Hydrobiologia, 394, 233-248. Comments: It has been hypotesized that it arrived in the Netherlands via ballast waters |
Last update by | Monika Pelėdienė, 2022-01-18 |