Use sterile individuals in aquaculture systems using non-native species
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Non-native species are commonly used worldwide for aquaculture purposes due to their economic value (for instance, the Pacific oyster Magallana gigas is importantly produced in the UK despite not being native). The expanding aquaculture industry has led to the accidental introduction of non-native species into the wild marine environment (Bax et al. 2003; Hewitt et al. 2004; Manchester & Bullock 2000), where they can impact on native subtidal benthic invertebrate species through hybridization (reproduction). This could be potentially avoided by using only sterile individuals of a non-native species in aquaculture (Thresher et al. 2009). However, for this to be a fully effective intervention, advances in polyploidy aquaculture and genetic containment need to occur, given that sterile individuals have been shown to revert over time and that polyploidy can have negative outcomes (e.g. Piferer et al. 2009; Zajicek et al. 2011).
Bax N., Williamson A., Aguero M., Gonzalez E. & Geeves W. (2003) Marine invasive alien species: a threat to global biodiversity. Marine Policy, 27, 313–323.
Hewitt C.L., Campbell M.L., Thresher R.E., Martin R.B., Boyd S., Cohen B.F., Currie D.R., Gomon M.F., Keough M.J., Lewis J.A., Lockett M.M., Mays N., McArthur M.A., O’Hara T.D., Poore G.C.B., Ross D.J., Storey M., Watson J.E. & Wilson R.S. (2004) Introduced and cryptogenic species in Port Phillip Bay, Victoria, Australia. Marine Biology, 144, 183–202.
Manchester S.J. & Bullock J.M. (2000) The impacts of non‐native species on UK biodiversity and the effectiveness of control. Journal of Applied Ecology, 37, 845–864.
Piferer F., Beaumont A., Falguiere J-C., Flajshans M., Haffray P. & Colombo L. (2009) Polyploidy fish and shellfish: Production, biology, and applications to aquaculture for performance improvement and genetic containment. Aquaculture, 293, 125–156.
Thresher R., Grewe P., Patil J.G., Whyard S., Templeton C.M., Chaimongol A., Hardy C.M., Hinds L.A. & Dunham R. (2009) Development of repressible sterility to prevent the establishment of feral populations of exotic and genetically modified animals. Aquaculture, 290, 104–109.
Zajicek P., Goodwin, A.E., & Weier, T. (2011) Triploid grass carp: Triploid induction, sterility, reversion, and certification. North American Journal of Fisheries Management, 31, 614–618.