Prevent the attachment of biofouling organisms/species in aquaculture
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
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Background information and definitions
While aquaculture facilities can be partly located on land (hatcheries), most of it occurs at sea, in cages, pens, bags, or ropes exposed to the marine environment. They represent hard structures onto which organisms can attach and grow – those organisms are known as the biofouling community. Non-native, invasive and other problematic species can be part of this biofouling community (Fitridge et al. 2012) and use aquaculture structures as “stepping stones” to spread and reach new areas to colonize (Ruiz et al. 1997). They can impact on native subtidal benthic invertebrate species through predation, competition for resources (food & space), contamination (for pathogens and diseases), or hybridization (through reproduction) (Bishop et al. 2010). Preventing the attachment of biofouling organisms can potentially help reduce the risks that invasive, non-native and other problematic biofouling species pose to subtidal benthic invertebrates. Non-fouling material, anti-fouling paints or coatings can be used for aquaculture infrastructures to prevent attachment (Fitridge et al. 2012).
Evidence for other interventions related to biofouling are summarised under “Threat: Invasive and other problematic species, genes and diseases – Remove biofouling organisms/species in aquaculture”, “Clean anthropogenic platforms, structures or equipment”, “Use antifouling coatings on the surfaces of vessels and anthropogenic structures”, “Use non-toxic antifouling coatings on surfaces” and “Restrict the use of tributyltin or other toxic antifouling coatings”.
Bishop M.J., Krassoi F.R., McPherson R.G., Brown K.R., Summerhayes S.A., Wilkie E.M. & O’Connor W.A. (2010) Change in wild-oyster assemblages of Port Stephens, NSW, Australia, since commencement of non-native Pacific oyster (Crassostrea gigas) aquaculture. Marine and Freshwater Research, 61, 714–723.
Fitridge I., Dempster T., Guenther J. & de Nys R., (2012) The impact and control of biofouling in marine aquaculture: a review. Biofouling, 28, 649–669.
Ruiz G.M., Carlton J.T., Grosholz E.D. & Hines A.H. (1997) Global invasions of marine and estuarine habitats by non-indigenous species: mechanisms, extent, and consequences. American Zoologist, 37, 621–632.
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This Action forms part of the Action Synopsis:Subtidal Benthic Invertebrate Conservation