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Conservation Monitoring in Freshwater Habitats pp 53–62Cite as

Monitoring Fish Populations in River SACs

Abstract

The EU Habitats Directive (92/43/EEC) on Conservation of Natural Habitats and of Wild Fauna and Flora stipulates that Member states maintain or restore habitats and species in a condition that ensures their favourable conservation status in the community. To comply with this Directive requires assessment of the conservation status of aquatic species in rivers designated as Special Areas of Conservations (SACs) against a predetermined set of objectives. This paper describes the protocols developed to determine the condition status of lampreys, bullheads, shad and Atlantic salmon in SAC rivers in the UK.

Two strategies are proposed for assessment of favourable conservation status of fish species of in SAC rivers. The first approach classifies the extant density of fish of various life stages against pre-set targets and the second examines the demographic structure of the population, i.e. the contribution of juveniles to the population, to demonstrate recruitment success. To achieve favourable conservation status, where abundant, the fish population should consist of a pre-determined proportion of young of the year or juvenile age classes. Further assessment of the status can be derived from mapping the distribution of the target species in individual SAC rivers. Favourable conservation status should be recorded if there is no decline in distribution from the current, or where available, historical pattern. Reasons for not achieving favourable condition status should be determined from environmental and physiochemical data collected in conjunction with the fisheries surveys.

Keywords

  • Condition assessment
  • fish stocks
  • lampreys
  • bullheads
  • salmon
  • shad
  • SAC rivers

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References

  • Bain MB, Stevenson NJ (1999) Aquatic habitat assessment: common methods. American Fisheries Society Special Publication, Bethesda, MD

    Google Scholar 

  • Bohlin T, Heggberget TG, Strange C (1990) Estimation of population parameters using electric fishing: aspects of the sampling design with emphasis on salmonids in streams. In: Cowx IG, Lamarque P (eds) Fishing with electricity. Fishing News Books, Oxford, pp 156–173

    Google Scholar 

  • Collares-Pereira MJ, Cowx IG (2004) The role of catchment scale environmental management in freshwater fish conservation. Fish Manage Ecol 11:303–312

    CrossRef  Google Scholar 

  • Collares-Pereira MJ, Cowx IG, Ribeiro F, Rodrigues L, Rogado JA (2000) Threats imposed by water development schemes on the conservation of endangered species in the Guadiana River, Portugal. Fish Manage Ecol 7:167–178

    CrossRef  Google Scholar 

  • Cowx IG (1995) Fish stock assessment – biological basis for sound ecological management. In: Harper D, Ferguson A (eds) Biological basis for river management. John Wiley, Chichester, pp 375–388

    Google Scholar 

  • Cowx IG, Lamarque P (eds) (1990) Fishing with electricity. Oxford, Fishing News Books 245 pp

    Google Scholar 

  • Cowx IG, Harvey JP, Noble RA, Nunn AD (2009) Establishing survey and monitoring protocols for the assessment of conservation status of fish populations in river Special Areas of Conservation in the UK. Aquat Conserv Marine Freshwater Ecosyst 19:96–103

    CrossRef  Google Scholar 

  • Cowx IG, Fraser D (2003) A standardised survey and monitoring protocol for the assessment of salmon populations within SAC rivers. Conserving Natura 2000 Rivers Monitoring Series No. 3, English Nature, Peterborough

    Google Scholar 

  • Cowx IG, Harvey JP (2003) A standardised survey and monitoring protocol for the assessment of bullhead populations within SAC rivers. Conserving Natura 2000 Rivers Monitoring Series No. 3, English Nature, Peterborough

    Google Scholar 

  • Environment Agency (2003) River habitat survey in britain and ireland. Field survey guidance manual: 2003 version. Environment Agency, Bristol

    Google Scholar 

  • Harvey JP, Cowx IG (2003) A standardised survey and monitoring protocol for the assessment of lamprey populations within SAC rivers. Conserving Natura 2000 Rivers Monitoring Series No. 3, English Nature, Peterborough

    Google Scholar 

  • Hillman R, Cowx IG, Harvey JP (2003) A standardised survey and monitoring protocol for the assessment of shad populations within SAC rivers. Conserving Natura 2000 Rivers Monitoring Series No. 3, English Nature, Peterborough

    Google Scholar 

  • Milner NJ, Wyatt RJ, Broad K (1998) HABSCORE – Applications and future development of related habitat models. Aquat Conserv Marine Freshwater Ecosyst 8:633–644

    CrossRef  Google Scholar 

  • Milner NJ, Davidson IC, Wyatt RJ, Aprahamian M (2000) The use of spawning targets for fishery management in England and Wales. In: Cowx IG (ed) Management and ecology of river fisheries. Fishing News Books, Oxford, pp 361–372

    CrossRef  Google Scholar 

  • Noble RA, Starkie AS, Cowx IG (2007) Development of fish-based methods for the assessment of ecological status in English and Welsh rivers. Fish Manage Ecol 14:495–508

    CrossRef  Google Scholar 

  • Nunn AD, Harvey JP, Noble RAA, Cowx IG (2008) Condition assessment of lamprey populations in the Yorkshire Ouse catchment, north-east England, and the potential influence of physical migration barriers. Aquat Conserv Marine Freshwater Ecosyst 18:175–189

    CrossRef  Google Scholar 

  • Roset N, Grenouillet G, Goffaux D, Pont D, Kestemont P (2007) A review of existing fish assemblage indicators and methodologies. Fish Manage Ecol 14:393–405

    CrossRef  Google Scholar 

  • Schmutz S, Cowx IG, Haidvogl G, Pont D (2007) Fish-based methods for assessing European running waters: a synthesis. Fish Manage Ecol 14:369–380

    CrossRef  Google Scholar 

  • Southwood TRE (1978) Ecological methods. Chapman and Hall, London

    Google Scholar 

Download references

Acknowledgements

This paper is based on contributions to the EU LIFE in UK Rivers Project and projects to assess condition status in UK rivers funded by the Environment Agency and Countryside Commission for Wales.

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Authors and Affiliations

  1. Hull International Fisheries Institute, University of Hull, Hull, HU6 7RX, UK

    Ian G. Cowx, Jonathan P. Harvey, Richard A. Noble & Andrew D. Nunn

Authors
  1. Ian G. Cowx
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  2. Jonathan P. Harvey
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  3. Richard A. Noble
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  4. Andrew D. Nunn
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Corresponding author

Correspondence to Ian G. Cowx .

Editor information

Editors and Affiliations

  1. Orielton Field Centre, Countryside Council for Wales, Woodside, Pembroke, SA71 5EZ, United Kingdom

    Clive Hurford

  2. Administrative Board, Västerbotten County, Umeå, 901 86, Sweden

    Michael Schneider

  3. International Fisheries Institute, University of Hull, Cottingham Road, Hull, HU6 7RX, United Kingdom

    Ian Cowx

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Cowx, I.G., Harvey, J.P., Noble, R.A., Nunn, A.D. (2010). Monitoring Fish Populations in River SACs. 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_6

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