Don Fishery Management Plan - RAFTS

Outcomes of Genetic SamplingData collectedData UsesGenetic characteristics of Don salmon • Combine with habitat data to aididentification of distinct breedingpopulations• GIS mapping of distinct breedingpopulations & management units• Combine with habitat data to determinescale at which habitat improvementswill be effective• Combine with hatchery evaluation todetermine best policy for stockingprogramme e.g. source of broodstockand locations for stocking progeny toprevent mixing different geneticpopulations• Allow restoration targeted towardsvulnerable componentsLead BodiesThe RDT will be the main body carrying out the sampling work associated with juvenilesalmon populations through the routine electric fishing surveys. Samples have beentaken from two locations on the mainstem, Cock Bridge and Ardhuncart, in 2007 withassistance from the Don DSFB. Genetic samples can also be taken from adult salmoncaptured at Newe for broodstock. The sampling may provide insight as to whether thebroodstock are from disparate populations destined for a number of the tributariesupstream of Newe, or whether, due to their capture late in the season, they are from atighter group heading for a smaller area of catchment.Future WorkThe sampling network can be revised in conjunction with the guidance from RAFTS andFRS following completion of the habitat survey. Combining information from the habitatsurvey and the genetic sampling will help to identify which parts of the river should beconsidered separately for the management of salmon. Future work may involveidentifying separate breeding populations of trout for management purposes.25