pdf Population Structure and Genetic Stock Identification of Trout (Salmo trutta) from the Moy Catchment INTERIM REPORT Popular

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Population Structure and Genetic Stock Identification of Trout (Salmo trutta) from the Moy Catchment INTERIM REPORT

Population Structure and Genetic Stock Identification of Trout (Salmo trutta) from the Moy Catchment

INTERIM REPORT

In 2014, IFI in collaboration with Queen’s University Belfast (QUB) began a three-year research programme to examine the genetic diversity of brown trout in the Moy catchment in tandem with two other catchments.

The main objectives of the Moy Brown Trout genetic study are:

  • To investigate if there are a number of discrete genetic stocks within the Moy catchment.
  • To understand how important each genetic group/stock is to the fishery.
  • Examine the behaviour and other processes occurring within individual populations and between populations over their life span.
  • Estimate the percentage contribution of the various sub-catchments to the Loughs Conn/Cullin adult brown trout stock (Lake mixed stock identification)
  • Investigate if there are any “Roscrea” type hatchery genes in the Loughs Conn/Cullin lake samples
  • Investigate if there is any evidence of “Roscrea” hatchery genes in the Castlebar River
  • Investigate if there is any genetic evidence to suggest that the cropping of trout from above the falls in the Clydagh river and their introduction to other rivers has impacted on the genetics of trout from donor rivers.
  • Estimate the percentage contributions of the various sub-catchments to the Moy sea trout stock
  •  Estimate what proportion of the adult sea trout sample from the Moy estuary are not Moy Catchment fish
  • Investigate if the Moy arterial drainage scheme impacted on the genetic diversity of brown trout within the Moy catchment .

Preliminary results from the first phase of the genetic analysis are presented in this report.