AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species |
Procambarus fallax f. virginalis References: Martin P. Nathan J. Dorn, Tadashi Kawai, Craig van der Heiden & Gerhard Scholtz (2010). "The enigmatic Marmorkrebs (marbled crayfish) is the parthenogenetic form of Procambarus fallax (Hagen, 1870), Contributions to Zoology, 79(3), 107-118 |
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Authority | ||
Family | Cambaridae | |
Order | Decapoda | |
Class | Malacostraca | |
Phylum | Arthropoda | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Not entered Comments: North America |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Asexual References: Scholtz, G., Braband, A., Tolley, L., Reimann, A., Mittmann, B., Lukhaup, C., Steuerwald, F., Vogt, G., 2003. Parthenogenesis in an outsider crayfish. Nature, 421(6925, pp. 806-806. Comments: The Marmorkrebs is unique in the manner that it is the only known decapod crustacean that reproduces by apomictic parthenogenesis: there exist only females which lay unfertilized eggs that develop into genetically uniform offspring (Scholtz et al., 2003; Martin et al., 2007; Vogt et al., 2008). No males have been found in laboratory or introduced, wild populations |
Developmental trait (?) | Brooding References: Scholtz, G., Braband, A., Tolley, L., Reimann, A., Mittmann, B., Lukhaup, C., Steuerwald, F., Vogt, G., 2003. Parthenogenesis in an outsider crayfish. Nature, 421(6925, pp. 806-806. |
Characteristic feeding method / Life stage (?) |
Comments: Like most crayfish species, the Marmorkrebs is most likely a polytrophic omnivore. It probably feeds on detritus, algae, plants and invertebrates and may also impact on higher trophic levels. |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Exact range: 0 - 18 References: Veselý, L., Hrbek, V., Kozák, P., Buřič, M., Sousa, R., Kouba, A. 2017. Salinity tolerance of marbled crayfish Procambarus fallax f. virginalis. Knowledge & Management of Aquatic Ecosystems, (418), 21. Comments: Evaluation of survival, growth and reproduction suggests that marbled crayfish have a lower salinity tolerance than other crayfish species, which may limit their invasive potential in brackish environments. However, its ability to survive for more than 80 days at 18 ppt opens up the possibility of gradual dispersion and adaptation to brackish conditions. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Soedarini, B., Klaver, L., Giesen, D., Roessink, I., Widianarko, B., van Straalen, N. M., van Gestel, C. A. 2013. Effect of copper exposure on histamine concentrations in the marbled crayfish (Procambarus fallax forma virginalis). Animal Biology, 63(2), pp. 139-147. |
Known human health impact? | Known Comments: Harmless. Marmorkrebs are harvested for human consumption and were sold in markets as cheap source of protein. |
Known economic impact? | Known References: Jones, J. P., Rasamy, J. R., Harvey, A., Toon, A., Oidtmann, B., Randrianarison, M. H., ... Ravoahangimalala, O. R. 2009. The perfect invader: a parthenogenic crayfish poses a new threat to Madagascar’s freshwater biodiversity. Biological Invasions, 11, pp. 1475-1482. Comments: Marmorkrebs will negatively impact rice culture in Madagascar. Introduced, non-indigenous crayfish are mostly considered a pest in rice paddies worldwide, because they damage young rice plants as well as irrigation systems and dams. |
Known measurable environmental impact? | Known References: Jones, J. P., Rasamy, J. R., Harvey, A., Toon, A., Oidtmann, B., Randrianarison, M. H., ... Ravoahangimalala, O. R. 2009. The perfect invader: a parthenogenic crayfish poses a new threat to Madagascar’s freshwater biodiversity. Biological Invasions, 11, pp. 1475-1482. Comments: Marmorkrebs act probably as polytrophic omnivores and were found at very high densities in Madagascar. Marmorkrebs pose a threat to indigenous crayfish species in Madagascar and Europe, due to competition for food and space and crayfish plague transmission. |
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) |
Association with vessel vectors (?) | Unknown References: Faulkes, Z. 2010. The spread of the parthenogenetic marbled crayfish, Marmorkrebs (Procambarus sp.), in the North American pet trade. Aquatic Invasions, 5(4), pp. 447-450. Comments: Marmorkrebs have been imported from Europe into other continents through personal contacts between aquarium hobbyists and the international pet trade. |
Molecular information | Available NCBI (https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?term=Procambarus+virginalis) |
Created by | Stephan Gollasch, 2014-01-19 |
Last update by | Sandra Gečaitė, 2024-07-23 |