Authors
A R Lyndon2; S J Paterson2; E L Strong1;  1 Heriot-Watt Univeristy;  2 Heriot-Watt University Discussion
The distribution of P. laevis marine strain in the UK has historically been fragmentary.  New data from Scottish populations where freshwater P. laevis is absent allows a clearer analysis of the marine strain's host specificity and a more comprehensive description of its Scottish distribution.  This further allows a reappraisal of previous English records, and suggests an hypothesis regarding its probable distribution across the UK and Ireland, with implications for threatened sea trout populations.