Species

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Species
: Magallana gigas
: (Thunberg, 1793)
: 836033
Species Taxonomy
: Ostreidae
: Ostreida
: Bivalvia
: Mollusca
Species Data from AquaNIS
:
Genome sequencing and DNA barcoding is available in a number of online databases. Other molecular data is available for C.gigas to determine its phylogeny and to describe other characteristics, such as composition.
: Anchor and anchor chains, Ballast waters, Biofouling
:
Zooplankton (Larvae, Eggs)
Results of species assessment according to Target Species selection criteria
Known human health impact? No
Comments: Not available.
Known economic impact? Yes
Comments: It can potentially outcompete native species of commercial interest (e.g. Flat oysters)(Smaal et al., 2005; Miossec et al., 2009).
References: Miossec, L., Le Deuff, R‐M., and Goulletquer, P. 2009. Alien species alert: Crassostrea gigas (Pacific oyster). ICES Cooperative Research Report No. 299. 42 pp. Smaal, A., van Stralen, M. and Craeymeersch, J., 2005. Does the introduction of the Pacific oyster Crassostrea gigas lead to species shifts in the Wadden Sea?. In The comparative roles of suspension-feeders in ecosystems (pp. 277-289). Springer, Dordrecht. Padilla, D.K., 2010. Context-dependent impacts of a non-native ecosystem engineer, the Pacific oyster Crassostrea gigas. Integrative and Comparative Biology, 50(2), pp.213-225. https://doi.org/10.1093/icb/icq080 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 2021-07-27. Herbert, R.J., Humphreys, J., Davies, C.J., Roberts, C., Fletcher, S. and Crowe, T.P., 2016. Ecological impacts of non-native Pacific oysters (Crassostrea gigas) and management measures for protected areas in Europe. Biodiversity and Conservation, 25(14), pp.2835-2865. https://doi.org/10.1007/s10531-016-1209-4
Known measurable environmental impact? Yes
Comments: Habitat alteration and displacement of native species (Smaal et al., 2005; Miossec et al., 2009; Padilla, 2010; Herbert et al., 2016).
References: Miossec, L., Le Deuff, R‐M., and Goulletquer, P. 2009. Alien species alert: Crassostrea gigas (Pacific oyster). ICES Cooperative Research Report No. 299. 42 pp. Smaal, A., van Stralen, M. and Craeymeersch, J., 2005. Does the introduction of the Pacific oyster Crassostrea gigas lead to species shifts in the Wadden Sea?. In The comparative roles of suspension-feeders in ecosystems (pp. 277-289). Springer, Dordrecht. Padilla, D.K., 2010. Context-dependent impacts of a non-native ecosystem engineer, the Pacific oyster Crassostrea gigas. Integrative and Comparative Biology, 50(2), pp.213-225. https://doi.org/10.1093/icb/icq080 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 2021-07-27. Herbert, R.J., Humphreys, J., Davies, C.J., Roberts, C., Fletcher, S. and Crowe, T.P., 2016. Ecological impacts of non-native Pacific oysters (Crassostrea gigas) and management measures for protected areas in Europe. Biodiversity and Conservation, 25(14), pp.2835-2865. https://doi.org/10.1007/s10531-016-1209-4
Included in the final TS list? - Yes
Comments: Assessed by the COMPLETE project experts (2021), included in target species list.