Monday 17 August

From 4.00pm

Arrivals and Registration


Survey practice: setting crayfish traps for white-clawed crayfish,
crayfish habitat appraisal (Optional field excursion – book in advance)


Evening Meal


Socialising (prepare your limericks for Conference Dinner!)

Tuesday 18 August

8.00am - 8.45am


8.45am - 9.25am

Registration & sign up for field excursions


Welcome and Introduction


Keynote  ICS, olds NICS and   new NICS in Europe  

D Holdich

Aquatic Consultant

10.00am - 12.30pm   (with coffee break)

Session 1: Conservation of white-clawed crayfish in Britain and Ireland

(Chair: J Reynolds)


Keynote   Challenges for   conservation of native crayfish, with a focus on Ireland                          

J Reynolds,  Trinity College University of Dublin


Observations on the niche requirements of white-clawed crayfish in Yorkshire and Derbyshire

K Turner


White-clawed crayfish conservation in South West England    

J Nightingale,  Bristol Zoo


Eight years of   native crayfish conservation and monitoring in the River Eden system in   Cumbria

J Backshall                           Eden Rivers Trust


Stillwater populations of white-clawed crayfish  

P Bradley

PBA Applied Ecology


Crayfish in the Wyre Forest: the importance of barriers to upstream migration                            

G Hill, University of Worcester


White-clawed crayfish in the Wansbeck catchment: movement through culverts, translocation   and creation of temporary habitat    

P Hannaby

Environment Agency


Panel session on session 1 (Chair J Reynolds)

12.30pm - 1.15pm


1.30pm – 4.45pm

Field Excursions – 4 options

5.15pm – 6pm

Poster Session


Drinks Reception

6.30pm – 9.30pm

Conference Dinner



Wednesday 19 August

8.00am - 8.45am


8.45am - 9.00am


9.00am – 11.30am   (inc break)

Session 2:   Management of invasive non-indigenous crayfish


Keynote   Tackling INNS as a regulator with a focus on crayfish species: tools, techniques and expertise    

T Renals

Environment Agency


Longterm field   trials in a computer: how population models can help in the development of management strategies for invasive crayfish

P Stebbing



Quantifying the seasonal demographic impacts of different removal methods on invasive crayfish populations: if there is no silver bullet, what is the optimal combination of copper bullets?            

R Houghton

Aberdeen University


Control and management of NICS in the UK: an opinion on a dichotomy                                            

A Stancliffe-Vaughan,

Anglia Ruskin University


The rise and fall of signal crayfish in Sweden – population collapses in introduced NICS                  

L Edsman, Swedish   University of Agricultural Sciences


The costs and benefits of control of non-indigenous crayfish

S Peay

AECON & University of Leeds


Panel and group discussion on session 2 (chair TBC)

11.30am – 12.30pm

Session 3: Ecology and impacts of non-indigenous crayfish  

(Chair: D Holdich)


Crayfish ecomorphology: impacts of signal crayfish on river sediment dynamics and tropic interactions

S Rice

Loughborough University


Indirect impacts of invasive crayfish bioturbation

E Willis-Jones Queen Mary University of London


The temporal and spatial extent of invasive signal crayfish – effects on instream macroinvertebrate communities

K Mathers

Loughborough University


Comparing predatory impacts of native and invasive crayfish using functional responses

N Taylor

University of Leeds

12.30pm - 1.30pm


1.30pm – 1.45pm

Delegates exercise

1.45pm – 3pm

Impact of signal crayfish on fish in headwater streams

D Chadwick & L Eagle, UCL


From tall tales of big fish to trophic cascades: using isotopes to study invasive crayfish biology    

J Grey, Lancaster University / Wild Trout Trust


Predation by Pacifastacus leniusculus on the intra-gravel embryos and emerging fry of Salmo salar

N Edmonds



Panel and group discussion on session 3 (Chair: D Holdich)

3.15pm – 4pm

Session 4: New invaders and biological interactions   (Chair: P Stebbing)


Keynote Parasites and biological invasions:   interactions, parallels and control                                

A Dunn, University of Leeds & Yorkshire Dales   Environment Network


Parasites or not?  Symbiotic branchiobdellids (Annelida:   Clitellata) on invasive signal crayfish (Pacifastacus leniusculus)

J James

Cardiff University


‘Out with the old and in with the new’ newer invasive species competitively dominant over pre-established counterpart  

R Thomas

Cardiff University


Red swamp crayfish Procambarus
in the UK

A Ellis

4pm - 5pm

Session 5: Looking ahead   (Chair: S Peay)


Feedback from delegates session


Where do we go from here? Discussion session


Conference roundup and Closing remarks


Taking advantage of the conference taking place during the crayfish season, excursions are being arranged to a range of informative sites:

  • White-clawed crayfish Ark site - headwater population
  • White-clawed crayfish successful translocation site
  • Signal crayfish impact site
  • Recent signal crayfish introduction site & current ark site project