Distribution, movements and relative abundance of dolly varden charr at the Big Fish River, NWT

Regions: Inuvialuit Settlement Region, Gwich'in Settlement Area

Tags: water quality, biology, wildlife management, water quantity, spawning areas, arctic char, fish movements

Principal Investigator: Harwood, Lois (11)
Licence Number: 12369
Organization: Department of Fisheries and Oceans
Licensed Year(s): 1993
Issued: Jan 01, 1993
Project Team: S. Sandstrom, D. Rystephanuk, B. Ferguson, two representatives from Aklavik HTC

Objective(s): To develop a fishing plan for the Big Fish River charr stock based on stock size and a safe harvest level; to incorporate this plan into a management plan for North Slope charr stocks; to examine the distribution and movements of spawning and non-spawning components (silvers) through floy and radio tagging, aerial tracking and tag recoveries; to examine the incidence of sequential spawning through dead sampling of charr in spring; to examine and monitor changes in water quality and quantity; to determine the extent of suitable spawning habitat at the Fish Hole area; to estimate the relative abundance of charr at the Fish Hole and surrounding area.

Project Description: This project will involve tagging charr and monitoring their movements. The fish will be tagged at the overwintering site in spring, before they start to migrate downstream. The fish with radio tags will be tracked every 4-6 weeks throughout the spring, summer and fall. Fish caught by the summer fishery at Shingle Point and having floy tags will be recorded. 100 charr each (mostly females) will be caught in the spring and fall to obtain additional data for the study.