Arctic charr from Ennerdale Water: a pilot study

• Main Authors: Farooqi, M.A., Nicholson, S.A., Douglas, S.R., Aprahamian , M.W.
• Format: Book
• Language: English
• Published: National Rivers Authority North West 1992
• Subjects: Ecology; Fisheries; Limnology; England; Ennerdale Water; Fishery survey; Sex ratio; Spawning; Rivers; Lakes; Length frequency; Arctic; Beck; Tay; Arctic charr; Salvelinus alpinus
• Online Access: http://hdl.handle.net/1834/24859

There are three fish species in the north west of England, Arctic charr (Salvelinus alpinus, L.), schelly (Coreqonus lavaretus. L.), and vendace (C. albula, L.), which have been reported as rare and vulnerable and have been identified as requiring the preparation and implementation of a conservation management plan.The presence of Arctic charr in Ennerdale Water has resulted in it being designated as a Site of Special Scientific Interest. These fish and one race of the species in Lake Windermere are the only English populations of charr known to spawn in running water. Associated with Ennerdale charr is the copepod parasite Salmincola edwardsii which has not been recorded from any other charr inhabited waters of the Lake District. However, it has been recorded on charr from four Scottish Lochs (Stack, Lee, Tay and Doon). The unique nature of Ennerdale is further highlighted by the presence of two crustaceans, Mysis relicta and Limnocalanus macrurus. The former has been recorded in Ireland while the latter is not known to exist anywhere else in the British Isles. The aim of this pilot study was to obtain baseline data on charr that spawn in Smithy Beck and the River Liza. This would indicate the current status of the population and help identify areas requiring further investigation. A total of 161 fish (95 males and 66 females) was caught and tagged over the 3 day period, 141 from Smithy Beck and 20 from the Liza. The raw data of the findings is presented in two appendices. Environment Agency Archives North West