Abstract
The Western Cleddau is a short river in the county of Pembrokeshire in south-west Wales. The main stem of the river extends for only 37.8 km, and has a catchment area of 294.5 km2. This chapter describes the development of site-specific targets for monitoring the Ranunculion habitat (H3620) of the river.
After analysing the results of a baseline sampling exercise, we developed a suite of indicators for assessing the condition of the Ranunculion habitat. These condition indicators state that the Ranunculion habitat of the Western Cleddau will in favourable condition if (a) there is sufficient channel cover of ‘Ranunculion’ macrophytes; (b) the macrophyte species present are typical of a mesotrophic lowland river; (c) enough families of ‘clean-water’ benthic invertebrates are present along the length of the river; and (d) the fauna that we expect to be associated with the vegetation is present, e.g. otters Lutra lutra, brown trout Salmo trutta, banded demoiselle Calopteryx splendens and beautiful demoiselle C. virgo damselflies.
The condition indicators are set out in objective terms that will minimise the scope for observer variation. The monitoring will be carried out at five locations distributed along the length of the river, with the data collected from 100 m sections of shallow riffle habitat.
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References
Brooks S, Lewington R (1997) Field guide to the dragonflies and damselflies of Great Britain and Ireland. British Wildlife Publishing, Hook
Davies CE, Shelley J, Harding PT, McClean IFG, Gardiner R, Pierson G (2004) Freshwater fishes in Britain: The species and their distribution. Harley Books, Colchester
European Commission (1999) Interpretation manual of European habitats. Eur 15/2. European Commission DG Environment, Brussels
Holmes NT, Newman JR, Chadd S, Rouen KJ, Saint L, Dawson FH (1999) Mean trophic rank: A user’s manual. Environment Agency, Bristol
Hynes HBN (1997) Adults and nymphs of British stoneflies (plecoptera): A key. Scientific Publication No 17. Freshwater Biological Association
Wallace ID, Wallace B, Philipson GN (2003) Keys to the case-bearing Caddis larvae of Britain and Ireland. Scientific Publication No 61. Freshwater Biological Association
Ward D, Holmes N, José P (eds) (1994) The new rivers and wildlife handbook. Sandy, RSPB, NRA, WT
Wright JF (2000) An introduction to RIVPACS. In: Wright JF, Sutcliffe DW, Furse MT (eds) Assessing the biological quality of fresh waters. Freshwater Biological Association, Ambleside, pp 1–24
Wright JF, Moss D, Armitage PD, Furse MT (1984) A preliminary classification of running water sites in Great Britain based on macro-invertebrate species and prediction of community type using environmental data. Freshwater Biol 14:221–256
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Hurford, C., Guest, D. (2010). Monitoring the Ranunculion Habitat of the Western Cleddau: A Case Study. In: Hurford, C., Schneider, M., Cowx, I. (eds) Conservation Monitoring in Freshwater Habitats. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9278-7_17
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DOI: https://doi.org/10.1007/978-1-4020-9278-7_17
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