Working with Crayfish

Survey Methods, Ecology, Mitigation, Licensing and Invasive Species



This popular course, now in its 18th year, provides a field-based introduction to a range of fieldwork with crayfish, in the marvellous setting of the Yorkshire Dales.


White-clawed crayfish are rapidly disappearing throughout much of the country. This is partly due to the spread of American Signal Crayfish and the plague it carries; the wider ecological and economic impacts are also becoming increasingly apparent.

Incorporating discussion, presentations, practical fieldwork, case studies and demonstrations the training presents an authoritative and practical review of crayfish ecology and field methods, including both standing and flowing water sites.

The content of this training event will contribute towards the development of competencies for survey of white-clawed crayfish, as set out in CIEEM guidance.

Please note, white clawed crayfish class licences in the UK are issued by Natural England, SNH and NRW. Two licensed referees are required for any application. As references should be based on the observation of a person's skills over an extended period of time, CIEEM does not provide references. We do however provide a certificate confirming completion of the training which will help in the assessment of your application.

What's included?

The course fee includes all tuition, transport to field sites in the Yorkshire Dales, evening training sessions x 2, evening meals and refreshments throughout each day. Evening sessions will be held on 4th and 5th July at The Knights Table, Little Stainforth. 

Accommodation, breakfast and lunch are not provided

Who Should Attend?

Ecological consultants, local authority ecologists and planners, conservation officers and licensing staff within SNCOs or NGO’s, environmental managers, wardens, rangers.

The course content is relevant to practitioners working in all regions of the UK and the ROI

Knowledge Level

Beginner - Intermediate

Prior Knowledge

No prior knowledge or experience of working with crayfish is required to attend this training.

Learning Outcomes

  • Identification and handling skills for both white-clawed and invasive non-natives
  • Practical application of a range of survey techniques, including biosecurity
  • An understanding of crayfish fieldwork in Britain
  • An understanding of the measures to be considered to conserve native crayfish or control invasive non-native species
  • An understanding of the approaches to mitigation at development works


Refreshments are provided throughout the course. Lunch is not provided. The course fee includes evening meals on Wednesday 4 and Thursday 5 July.


Tickets Person(s) Price
Member Ticket 1 £335.00
Non-Member 1 £475.00