White Clawed Crayfish populations are concentrated in northern and central England and their distribution is governed by geology, water quality and the presence of the non-native Signal Crayfish. They can be found in canals, streams, rivers, lakes, reservoirs, mill ponds and water filled quarries. Their preference is for mineral rich waters over calcareous and rapidly weathering rocks. Good flowing water habitats are those with cobbles and rock riffles, roots and woody vegetation, undermined and overhanging banks, heterogeneous flow patterns and water saturated logs.
White Clawed Crayfish photograph by David Gerke
Our support capabilities for White Clawed Crayfish issues are:
White Clawed Crayfish trapping and stone turning surveys.
Design and Assessment
Masterplan design and Impact Assessment.
White Clawed Crayfish licence application, site supervision and monitoring.
Receptor site selection and compensatory habitat design, precautionary working method statements, tool box talks, pre-works survey and site supervision, and translocation.
Habitat Creation and Restoration
River, ditch and rhine restoration and channel creation, pond and lake creation and restoration, reedbed and wetland creation.
Channel damming and draining, in-filling of waterbodies, tree, hedgerow, woodland and scrub clearance, stump grinding and treatment, and turf stripping.
Short and Long-term habitat management for White Clawed Crayfish.