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Endocrine disrupting chemicals in aquatic ecosystems: Impacts on new policies and guidelines, and economic benefits for the UK.

Summary of the impact

Research led by Professor Charles Tyler at the University of Exeter has provided critical data on the widespread adverse oestrogenic effects of endocrine disrupting chemicals in wild fish populations in the UK. This has triggered the UK government to take action through investment in research and development of policies and guidelines. The research has led to world-wide recognition that endocrine disrupting chemicals are an emerging policy issue, a £40 million demonstration project with the UK government and water industry, and multi-million pound benefits to the UK in terms of improved water quality and safeguarding freshwater wildlife.

Submitting Institution

University of Exeter

Unit of Assessment

Earth Systems and Environmental Sciences

Summary Impact Type

Environmental

Research Subject Area(s)

Environmental Sciences: Environmental Science and Management
Biological Sciences: Ecology
Agricultural and Veterinary Sciences: Fisheries Sciences

Improving sustainability of UK salmon farming through replacement of marine fish oil while ensuring nutritional quality is preserved through maintenance of omega-3 levels

Summary of the impact

Omega-3 long-chain polyunsaturated fatty acids (LC-PUFA) are essential nutrients and have many beneficial effects on human health. Fish are the major source of omega-3 LC-PUFA in the human diet, and its level was maintained in farmed fish through the use of fish oil as a major component of extruded aquafeeds. Around 10 years ago it became clear that demand for fish oil would rapidly outstrip supply, limiting expansion of aquaculture activities, if fish oil use was not reduced. The challenge this presented was that alternatives to fish oil lack omega-3 LC-PUFA. However, replacement of fish oil with more sustainable alternatives is now standard practice in the industry. Research into fish oil replacement and omega-3 metabolism in the Nutrition Group, Institute of Aquaculture has been at the forefront of the scientific research in the UK and Europe that has ensured nutritional quality of farmed fish by developing alternative feed ingredients and feeding strategies that have maintained levels of omega-3 LC-PUFA despite radical changes to feed composition driven by sustainability and food security. This work culminated with recent demonstrations that farmed salmon can be net producers of marine protein (2010) and oil (2011).

Submitting Institution

University of Stirling

Unit of Assessment

Agriculture, Veterinary and Food Science

Summary Impact Type

Economic

Research Subject Area(s)

Chemical Sciences: Organic Chemistry
Agricultural and Veterinary Sciences: Animal Production, Fisheries Sciences

Informing Global Improvements on the Welfare of Fish

Summary of the impact

This research programme has provided convincing evidence that fish perceive pain and has been instrumental in directly informing changes to experimental protocols and influencing welfare guidelines.

We use fish in a variety of ways — for food, farming, experimentation, as public exhibits, in recreational angling and as pets. Many of the procedures that fish are subjected to cause tissue damage that would give rise to the sensation of pain in mammals. This research programme uses techniques in neurobiology, physiology and animal behaviour to discover how the fish are affected by these procedures. This has not only improved the welfare of fish, but also influenced how the public views these animals through media dissemination.

Submitting Institution

University of Chester

Unit of Assessment

Psychology, Psychiatry and Neuroscience

Summary Impact Type

Societal

Research Subject Area(s)

Biological Sciences: Ecology
Medical and Health Sciences: Neurosciences

Multiple benefits from improved tilapia production: contributions to food security in Bangladesh

Summary of the impact

Tilapia, an important farmed fish is of fundamental importance to the food security of poor people in less developed countries, and ensuring high quality juveniles are available locally is critical. Stirling's Sustainable Aquaculture group have been instrumental in developing a novel decentralised approach to sustainable tilapia farming which has now been piloted and scaled up in NW Bangladesh (NWB). This work has improved the availability of high quality seed and more efficient and productive food fish. This has led to seasonal income smoothing and elevated household nutrition among the targeted poorer households producing the juveniles, as well as reduced costs and use of agrochemicals in associated rice production. Landless people have also benefitted through trading fish in targeted areas and further afield.

Submitting Institution

University of Stirling

Unit of Assessment

Geography, Environmental Studies and Archaeology

Summary Impact Type

Environmental

Research Subject Area(s)

Biological Sciences: Ecology
Agricultural and Veterinary Sciences: Fisheries Sciences
Medical and Health Sciences: Public Health and Health Services

DEPOMOD & AutoDEPOMOD: Models changing aquaculture planning practices in Scotland and worldwide

Summary of the impact

DEPOMOD, and AutoDEPOMOD, are models, developed by Prof. Black's research team, which predict the impact of fish-farm discharges on the seabed in order to optimise the operation of aquaculture sites to match the environmental capacity. Since being adopted by the Scottish Environment Protection Agency, AutoDEPOMOD now forms a compulsory stage in the aquaculture planning consent process in Scotland, and has been used in the development of all presently operational salmon sites in Scotland. DEPOMOD and AutoDEPOMOD software have 122 licences in 25 countries worldwide.

Submitting Institution

University of the Highlands & Islands

Unit of Assessment

Earth Systems and Environmental Sciences

Summary Impact Type

Environmental

Research Subject Area(s)

Biological Sciences: Genetics
Agricultural and Veterinary Sciences: Fisheries Sciences

Protecting Fish at River Dams and Barrages: New Approaches for Endangered Species

Summary of the impact

Research at the University of Southampton into the behaviour of fish at dams has led to the improved design and positioning of screens to prevent economically important and endangered fish from being killed in turbines, as well as enabling them to pass barriers more successfully through improved fish passes. The research has informed practical changes to river infrastructure in the UK, Sweden, the USA, and China. It also led to development of methodologies for river restoration and planning which have aided the implementation of new conservation legislation, and quantification of the environmental impacts of beaver dams on fisheries.

Submitting Institution

University of Southampton

Unit of Assessment

General Engineering

Summary Impact Type

Environmental

Research Subject Area(s)

Environmental Sciences: Environmental Science and Management
Biological Sciences: Ecology
Agricultural and Veterinary Sciences: Fisheries Sciences

8 – Twenty-five years of Falkland Islands Fisheries assessment and management resulting in one of the best managed fisheries in the world and license revenue of tens of millions of pounds

Summary of the impact

Between 1987 and 2011, the Fish group at Imperial College London assisted the Falkland Islands Government by providing fisheries management advice as well as delivering seasonal licencing and fee analyses which determined the number and type of fishing licences allocated to commercial vessels operating in Falkland waters. The work of the Fish group had unprecedented economic, commercial and environmental impacts on the Falkland Islands, where between 50% and 75% of the annual revenue required to fund all infrastructure, research and development in the Islands is generated by the £20M income from the sale of commercial fishing licences. In 2006, the Falkland Islands changed from a seasonal fishing licensing system to a rights-based management system of Individual Transferrable Quotas (ITQs) for fishing companies. The move to ITQs, which was recommended by the Fish Group, generated revenue of £9.5 million in 2010 and the system will remain in place until 2031. During a transition period between 2008 and 2011, the Fish Group supported the planned hand-over of licencing and fee responsibilities to the Falkland Island Fisheries Department which continues to use the bio-economic and stock assessment models developed by the Fish Group at Imperial for the sustainable management of marine resources.

Submitting Institution

Imperial College London

Unit of Assessment

Biological Sciences

Summary Impact Type

Environmental

Research Subject Area(s)

Biological Sciences: Ecology
Agricultural and Veterinary Sciences: Fisheries Sciences

Improving fish health and the aquatic environment through vaccination

Summary of the impact

Research by the Institute of Aquaculture has made a significant contribution to the development of effective fish vaccines, some of which have been commercialised and are used widely within the aquaculture industry. The majority of farmed fish in the UK are vaccinated (44 million salmon and 7.5 million rainbow trout in 2012 alone) with vaccines developed at Stirling, resulting in vast improvements in survival and fish health, and a sustained minimal use in antibiotics through mass vaccination. Vaccines have been developed for all the major farmed species in Europe, and recently the first vaccine for Pangasius catfish in Vietnam (>2 million tonne).

Submitting Institution

University of Stirling

Unit of Assessment

Agriculture, Veterinary and Food Science

Summary Impact Type

Technological

Research Subject Area(s)

Medical and Health Sciences: Medical Microbiology

Management strategies to control salmon puberty: optimised productivity and sustainability of the fish farming sector

Summary of the impact

Salmon maturation prior to harvest constitutes an environmental, welfare and production bottleneck for the salmon aquaculture industry. Our research has reduced the number of fish that mature during the grow-out phase so they do not reallocate energy to develop gonads and display secondary sexual characteristics that reduce yield, harvest quality and increase disease susceptibility that can result in downgrading at processing and lost profitability. In addition, reproductively competent fish that escape from on-growing cages may breed with wild stocks, leading to potential introgression. This has a major impact on public perception of farmed salmon and it limits the expansion of the industry. The IoA Reproduction team has undertaken a comprehensive body of work since 1993 to address this critical production bottleneck through an array of management strategies. This work culminated in the REF period by the demonstration that salmon puberty can be reduced to <3% by the use of standardised lighting regimes (2008) followed by the first commercial production of sterile salmon (2012-13).

Submitting Institution

University of Stirling

Unit of Assessment

Agriculture, Veterinary and Food Science

Summary Impact Type

Environmental

Research Subject Area(s)

Biological Sciences: Genetics, Physiology
Agricultural and Veterinary Sciences: Fisheries Sciences

Control of Epidemics in the aquaculture industry of England and Wales

Summary of the impact

In July 2011, a fish disease simulator developed in the Department of Mathematical Sciences at the University of Liverpool was installed on computers at the Centre for Environment, Fisheries & Aquaculture Science (Cefas), an executive agency of the UK government Department for Environment, Food and Rural Affairs (Defra).

Since this date, the simulator has significantly improved the capability available to Cefas for understanding the likely spread of infectious diseases in the aquaculture industry of England and Wales, and enabled the optimisation of methods for the prevention and control of outbreaks. Specifically, a user-friendly interface enables Cefas to focus on particular diseases of concern, understand their specific pattern of spread and optimise methods for their control. The simulator is currently being used to develop contingency planning for outbreaks.

Submitting Institution

University of Liverpool

Unit of Assessment

Mathematical Sciences

Summary Impact Type

Environmental

Research Subject Area(s)

Agricultural and Veterinary Sciences: Fisheries Sciences

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