Thompson, M; (2015) River Nar restoration at Castle Acre: Final report of pre- and post-restoration monitoring. (ECRC Research Report 169 ). UCL Environmental Change Research Centre: London, UK.

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Abstract

Before-After-Control-Impact habitat and invertebrate assessment has been undertaken across two control and two restored sites along the River Nar at Castle Acre (Figure 1). This approach has enabled the assessment of both habitat and ecological restoration following the installation of large woody debris (Lwd). We have combined data from multiple stream Lwd restorations in order to assess how the project on the Nar is performing. Relative to other streams in the database, the Nar had the highest invertebrate species richness (74) and there were encouraging trends in density between habitats, but large variation within restored sites suggests that the restoration signal has been limited by large-scale factors including siltation.

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