Population trends of Arctic charr (Salvelinus alpinus) in the UK: assessing the evidence for a widespread decline in response to climate change
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The UK lies towards the southernmost distribution limit of the circumpolar Arctic charr (Salvelinus alpinus), and native populations of high national conservation value occur in all four component countries. However, given the temperature requirements of this species and the already relatively mild UK climate, there is strong reason to expect a significant negative impact of climate change on local populations. Data were assembled from repeated Arctic charr population assessments using combinations of hydroacoustics, gill netting, entrapment records and fisheries catches at five Scottish populations, five English populations and one Welsh population. These data were then used to test the hypotheses that there has been a widespread decline of Arctic charr in the UK and that it can be attributed at least in part to climate change. Ten of the 11 studied populations exhibited significant 1990-onwards declines in abundance, while only the most northerly population showed a significant increase. Overall, there was a significant positive relationship between the observed population decline ranking and a vulnerability to climate change ranking based on water body latitude, altitude and mean depth. These observations support the hypothesis that this species has suffered a recent and widespread decline in the UK, and although additional factors are undoubtedly also involved in some specific cases, climate change is a significant factor.
- Adams, C. E., 1995. The Arctic Charr Salvelinus alpinus population of Loch Girlsta, Shetland. Unpublished Report, Scottish Natural Heritage, Edinburgh, UK.
- Adams, C. E., C. W. Bean, D. Fraser & P. S. Maitland, 2007. Conservation and management of the Arctic charr: a forward view. Ecology of Freshwater Fish 16: 2–5. CrossRef
- Barbour, S. E. & S. M. Einarsson, 1987. Ageing and growth of charr, Salvelinus alpinus (L.), from three habitat types in Scotland. Aquaculture and Fisheries Management 18: 63–72.
- Brown, E. A. R. & D. B. C. Scott, 1994. Life histories of the powan, Coregonus lavaretus (L.) (Salmonidae, Coregoninae) of Loch Lomond and Loch Eck. Hydrobiologia 290: 121–131. CrossRef
- Clabburn, P. & R. Davies, 2008. Summary of the results of a hydroacoustic survey of Llyn Padarn during August 2007. Unpublished Report, Report Ref. FAT/TR/08/01, Environment Agency Wales, Cardiff, UK.
- Dempson, J. B., M. Shears, G. Furey & M. Bloom, 2008. Resilience and stability of north Labrador Arctic charr, Salvelinus alpinus, subject to exploitation and environmental variability. Environmental Biology of Fishes 83: 57–67. CrossRef
- Elliott, J. M., 1990. The need for long-term investigations in ecology and the contribution of the Freshwater Biological Association. Freshwater Biology 23: 1–5. CrossRef
- Elliott, J. M. & J. M. Fletcher, 2001. A comparison of three methods for assessing the abundance of Arctic charr, Salvelinus alpinus, in Windermere (northwest England). Fisheries Research 53: 39–46. CrossRef
- Elliott, J. M., J. M. Fletcher, J. A. Elliott, P. R. Cubby & E. Baroudy, 1996. Changes in the population density of pelagic salmonids in relation to changes in lake enrichment in Windermere (northwest England). Ecology of Freshwater Fish 5: 153–162. CrossRef
- Graham, C. T. & C. Harrod, 2009. Implications of climate change for the fishes of the British Isles. Journal of Fish Biology 74: 1143–1205. CrossRef
- Gurevitch, J., P. S. Curtis & M. H. Jones, 2001. Meta-analysis in ecology. Advances in Ecological Research 32: 199–247. CrossRef
- Hateley, J., 2008. Fisheries hydroacoustic survey of Ennerdale Water 15th October 2008. Unpublished Report, Environment Agency, Warrington, UK.
- Haugen, T. O., I. J. Winfield, L. A. Vøllestad, J. M. Fletcher, J. B. James & N. Chr. Stenseth, 2006. The ideal free pike: 50 years of fitness-maximizing dispersal in Windermere. Proceedings of the Royal Society, Series B 273: 2917–2924. CrossRef
- Jones, I. D., I. J. Winfield & F. Carse, 2008. Assessment of long-term changes in habitat availability for Arctic charr (Salvelinus alpinus) in a temperate lake using oxygen profiles and hydroacoustic surveys. Freshwater Biology 53: 393–402.
- Klemetsen, A., P.-A. Amundsen, P. E. Grotnes, R. Knudsen, R. Kristoffersen & M.-A. Svenning, 2002. Takvatn through 20 years: long-term effects of an experimental mass removal of Arctic charr, Salvelinus alpinus, from a subarctic lake. Environmental Biology of Fishes 64: 39–47. CrossRef
- Love, R. H., 1971. Dorsal-aspect target strength of an individual fish. Journal of the Acoustical Society of America 49: 816–823. CrossRef
- Maitland, P. S., R. B. Greer, R. N. Campbell & G. F. Friend, 1984. The status and biology of Arctic Charr, Salvelinus alpinus (L.), in Scotland. In Johnson, L. & B. Burns (eds), Biology of the Arctic Charr: Proceedings of the Third International Charr Symposium. University of Manitoba Press, Winnipeg: 193–215.
- Maitland, P. S., L. May, D. H. Jones & C. R. Doughty, 1991. Ecology and conservation of Arctic charr, Salvelinus alpinus (L.), in Loch Doon, an acidifying loch in southwest Scotland. Biological Conservation 55: 167–197. CrossRef
- Maitland, P. S., I. J. Winfield, I. D. McCarthy & F. Igoe, 2007. The status of Arctic charr Salvelinus alpinus in Britain and Ireland. Ecology of Freshwater Fish 16: 6–19. CrossRef
- McCarthy, I. D., 2007. The Welsh Torgoch (Salvelinus alpinus): a short review of its distribution and ecology. Ecology of Freshwater Fish 16: 34–40. CrossRef
- Pomeroy, P. P., 1991. A comparative assessment of temporal variation in diet of powan. Coregonus lavaretus (L.), from Loch Lomond and Loch Eck, Scotland, UK. Journal of Fish Biology 38: 457–478. CrossRef
- Reist, J. D., F. J. Wrona, T. D. Prowse, M. Power, J. B. Dempson, R. J. Beamish, J. R. King, T. J. Carmichael & C. D. Sawatzky, 2006. General effects of climate change on arctic fishes and fish populations. AMBIO: A Journal of the Human Environment 35: 370–380. CrossRef
- Winfield, I. J., J. M. Fletcher & P. R. Cubby, 1998. The impact on the whitefish (Coregonus lavaretus (L.)) of reservoir operations at Haweswater, UK. Archiv fur Hydrobiologie, Official Journal of the International Association for Theoretical and Applied Limnology, Special Issues: Ergebnisse der Limnologie 50: 185–195.
- Winfield, I. J., J. M. Fletcher, J. B. James & B. D. Bayliss, 2006. Fisheries on the edge in Cumbria, UK: where salmonids, cyprinids and climate change collide. Proceedings of the Institute of Fisheries Management Annual Conference 2005. Institute of Fisheries Management, Nottingham: 125–136.
- Winfield, I. J., J. M. Fletcher & J. B. James, 2007. Modelling the impacts of water level fluctuations and predation by cormorants (Phalacrocorax carbo) on the population dynamics of whitefish (Coregonus lavaretus) in Haweswater, UK. Advances in Limnology 60: 277–284.
- Winfield, I. J., J. M. Fletcher & J. B. James, 2008. The Arctic charr (Salvelinus alpinus) populations of Windermere, UK: population trends associated with eutrophication, climate change and increased abundance of roach (Rutilus rutilus). Environmental Biology of Fishes 83: 25–35. CrossRef
- Winfield, I. J., J. M. Fletcher, J. B. James & C. W. Bean, 2009. Assessment of fish populations in still waters using hydroacoustics and survey gill netting: experiences with Arctic charr (Salvelinus alpinus) in the UK. Fisheries Research 96: 30–38. CrossRef
- Population trends of Arctic charr (Salvelinus alpinus) in the UK: assessing the evidence for a widespread decline in response to climate change
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- 1. Centre for Ecology & Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, UK
- 2. Environment Agency, Richard Fairclough House, Knutsford Road, Warrington, WA4 1HG, UK
- 3. Scottish Natural Heritage, Caspian House, Mariner Court, Clydebank Business Park, Clydebank, G81 2NR, UK
- 4. Environment Agency Wales, Rivers House, St Mellons Business Park, St Mellons, Cardiff, CF3 0LT, Wales, UK