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Predicting future climate- and catchment-driven risks to the ‘land-water-shellfish continuum’: towards improved decision-support for Scotland’s shellfish waters


Project Description

Supervised by Dr David Oliver (University of Stirling), Prof Richard Quilliam (University of Stirling) and Dr Sim Reaney (Durham University).

This PhD is in collaboration with the Scottish Environment Protection Agency, who will provide additional support as a CASE partner.

The Scottish shellfish food production industry currently has over 320 active aquaculture sites, is estimated to be worth approximately £9.5m at first sale value and plays a key role in supporting livelihoods in some of Scotland’s more remote rural communities. However, climate change is a concern to the Scottish shellfish farming industry because of the coupling of a highly hydrologically-connected landscape with increased risk of rainfall-driven contaminated runoff. In general, climate projections suggest increased risk of extreme rainfall events in Scotland and downstream consequences of reduced microbial water quality on shellfish production areas (SPAs) and shellfish water protected areas (SWPAs) can threaten the safety and quality of shellfish (primarily mussels and pacific oysters) intended for human consumption. While the severity and scale of future consequences of a changing climate on food safety remain unclear, qualitative evidence suggests that the potential impacts of changing weather patterns and climatic systems on aquatic environments used for food production are complex and varied. These can range from both the immediate effects of pollution from extreme events through to more subtle shifts in the nature of catchment hydrology.

Recently, we have developed a novel multi-scale modelling approach for assessing E. coli loading to catchment landscapes (ViPER), which is linked to a hydrological risk mapping tool, now known as SCIMAP-FIO, to enable the identification of critical source areas and ‘at-risk’ tributaries in catchments in terms of high E. coli loading. Resources available to food and environmental regulators are limited, hence models and tools capable of predicting the distribution of pollution risk across large landscape scales offer a means of prioritising effort and targeting scarce resource more efficiently and effectively.

Research objectives: The overarching aim of this studentship is to provide critical data on the impact of climate and land-use change on microbial pollution of S(W)PAs both now and into the future, thus delivering quantitative evidence to help safeguard Scotland’s economically and socially important shellfish industry. The student will forecast future scenarios of risk to Scotland’s shellfish harvesting industry as driven by projected climate change trends, e.g. changing rainfall patterns and intensity, and future shifts in rural and urban land use. Specifically, the research objectives are to:

1. Use the ViPER/SCIMAP-FIO models to generate spatially-distributed and temporally-variable catchment-scale risk outputs for SPAs in Scotland;
2. Identify a subset of three test catchments linked to vulnerable S(W)PAs and undertake a programme of water quality sampling to quantify model fit to observed water quality data through contrasting seasons;
3. Investigate associations between E. coli levels in shellfish at S(W)PAs, modelled outputs of ViPER/SCIMAP-FIO surface water quality in drainage networks and climatic & ‘within-catchment’ environmental datasets;
4. Predict how patterns of risk to S(W)PAs vary in response to different climate and land-use change scenarios;
5. Model catchment ‘what-if’ management and mitigation scenarios to quantify their likely microbial pollution risk-reduction to S(W)PAs from future climate and land-use change.

The studentship will therefore use a combined field and modelling-based approach to ultimately predict how microbial risk can be reduced via a range of management approaches that respond to likely environmental and climate change. Full details of the methods and approach can be found here: https://www.iapetus2.ac.uk/studentships/predicting-future-climate-and-catchment-driven-risks-to-the-land-water-shellfish-continuum-towards-improved-decision-support-for-scotlands-shellfish-waters/. As the PhD develops you will also liaise with an external collaborator, Dr Phil Bartie (Computing Science, Heriot-Watt University), to develop novel geospatial skills to further complement the studentship.

Funding Notes

Serious applicants are strongly advised to make an informal enquiry about the PhD well before the final submission deadline of 10th January and strongly encouraged to send their CV and covering letter to David Oliver ().
Instructions on how to make a formal application and information on eligibility requirements can be found here: View Website. Note that you must make an application both to the IAPETUS2 website and to Stirling University (View Website) before 5pm on the closing date for your application to be valid

References

Full IAPETUS studentships are open to UK nationals and EU candidates who will have been resident in the UK for at least 3 years at the time of the PhD commencing. The project is competition funded through an IAPETUS2 PhD Studentship Award which includes 3.5 years student stipend (at national UKRI standard rate), fees and research training support grant.

Whilst experience in microbiology would be useful, it is certainly not essential as the student will receive full laboratory training.
Further information on the project, skills and training opportunities can be found here: https://www.iapetus2.ac.uk/studentships/predicting-future-climate-and-catchment-driven-risks-to-the-land-water-shellfish-continuum-towards-improved-decision-support-for-scotlands-shellfish-waters/

Candidates should ideally have a First Class Honours degree and Masters degree in a relevant subject. Applicants with a minimum of a 2:1 Honours degree may be considered provided they have a Distinction at Masters level.

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