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Webber, JL, Tyler, CR, Carless, D, Jackson, B, Tingley, D, Stewart-Sinclair, P, Artioli, Y, Torres, R, Galli, G, Miller, PI, Land, PE, Zonneveld, S, Austen, MC and Brown, AR 2021 Impacts of land use on water quality and the viability of bivalve shellfish mariculture in the UK: A case study and review for SW England. Environmental Science & Policy, 126. 122-131. https://doi.org/10.1016/j.envsci.2021.09.027
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Abstract/Summary
This paper examines how land use affects water quality and how this impacts the viability of shellfish mariculture (marine aquaculture) in the UK through a synthesis of the current literature, stakeholder workshops and targeted engagement of cross-sector organisations across a case study in South West England. We examine the importance of water quality as a constraint for shellfish mariculture in South West England and explore how current and projected future land uses are likely to influence ongoing viability. Currently, faecal material from agricultural runoff and municipal wastewater discharges is the main water quality issue affecting the viability of shellfish mariculture. Most UK Shellfish Waters, including those in SW England (~90%), do not consistently meet regulatory standards for faecal indicator organisms (FIOs) in shellfish, designed to ensure they are safe for direct human consumption. Other pollutants currently impacting shellfish mariculture include persistent organic pol�lutants and metals, suspended solids and excess nutrient inputs. Emerging pollutants with the potential to impact on mariculture include a range of consumer- industrial- and agri- chemicals, including biocides, pesticides, veterinary and human medicines. We evaluated possible changes in water quality conditions through deriving and exploring a range of future scenarios, considering policies and trends in land use including regenerative and intensive agriculture, renewable energy generation, afforestation, urban development and climate change. Our findings highlight possible trade-offs and synergies between land and water-based food production systems, applicable in SW England and across other regions of the UK and internationally, for helping to inform environmental policy development and implementation.
| Item Type: | Publication - Article |
|---|---|
| Additional Keywords: | Aquaculture Bivalves Land-use Mariculture Water-quality |
| Subjects: | Aquaculture Fisheries Pollution |
| Divisions: | Plymouth Marine Laboratory > National Capability categories > National Capability Modelling Plymouth Marine Laboratory > National Capability categories > Single Centre NC - CLASS Plymouth Marine Laboratory > Science Areas > Marine System Modelling |
| Depositing User: | S Hawkins |
| Date made live: | 28 Oct 2021 10:50 |
| Last Modified: | 13 Dec 2023 12:20 |
| URI: | https://plymsea.ac.uk/id/eprint/9447 |
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