CLBMON-4 – Kinbasket Reservoir Fish Stranding Assessment: Year One. Unpublished report by Summit Environmental Consultants Inc. for BC Hydro Generation, Water License Requirements
Author: A. Hanson, C. Nadeau
This document represents the results of the first year of the stranding assessment, focusing on a Geographic Information Systems (GIS) analysis of the drawdown zone of the Kinbasket Reservoir. This study focused on the area of the drawdown zone between 754 and 725 m elevation, because this range was identified as having the greatest potential stranding risk (BC Hydro RFP 2009). The general objective of this three year assessment was to determine the effects of reservoir drawdown on pool formation and potential fish stranding. Specific objectives were to (bolded bullets have been addressed in the current report): 1. Assess and document key areas of concern; 2. Determine the extent of fish stranding; and 3. Develop mitigation options for future consideration in the operations of the Kinbasket Reservoir.
The preliminary GIS analysis indicated that there were a large number of potential stranding pools in Kinbasket Reservoir. The risk rating criteria for this assessment were derived from the likelihood/potential risk of fishes becoming stranded in identified pools, and close to 25 per cent of the pools were rated as having a high stranding risk. Assessment criteria included pool area, pool depth, number of days isolated and the time of year of isolation.
The preliminary GIS analysis indicated that there were a large number of potential stranding pools in Kinbasket Reservoir. The risk rating criteria for this assessment were derived from the likelihood/potential risk of fishes becoming stranded in identified pools, and close to 25 per cent of the pools were rated as having a high stranding risk. Assessment criteria included pool area, pool depth, number of days isolated and the time of year of isolation.
Resources Data:
Name: CLBMON-4_YR1_2010-09-01
Format: PDF
URL: https://www.bchydro.com/content/dam/hydro/medialib/internet/documents/planning_regulatory/wup/southern_interior/2011q1/clbmon-4_yr1_2010-09-01.pdf
Additional Info
Study Years: 2009
Published: 2010
CLBMON-4 – Kinbasket Reservoir Fish Stranding Assessment: Year One. Unpublished report by Summit Environmental Consultants Inc. for BC Hydro Generation, Water License Requirements
Author: A. Hanson, C. Nadeau
Tags: Bull Trout, Burbot, DEM, Dewatering, GIS, Kinbasket Reservoir, Kokanee, Monitoring Recommendations, Oncorhynchus Mykiss, Oncorhynchus Nerka, Pool, Rainbow Trout, Risk Assessment, Salvelinus Confluentus, Stranding
This document represents the results of the first year of the stranding assessment, focusing on a Geographic Information Systems (GIS) analysis of the drawdown zone of the Kinbasket Reservoir.
This study focused on the area of the drawdown zone between 754 and 725 m elevation, because this range was identified as having the greatest potential stranding risk (BC Hydro RFP 2009). The general objective of this three year assessment was to determine the effects of reservoir drawdown on pool formation and potential fish stranding. Specific objectives were to (bolded bullets have been addressed in the current report):
1. Assess and document key areas of concern;
2. Determine the extent of fish stranding; and
3. Develop mitigation options for future consideration in the operations of the Kinbasket Reservoir.
Summary
The preliminary GIS analysis indicated that there were a large number of potential stranding pools in Kinbasket Reservoir. The risk rating criteria for this assessment were derived from the likelihood/potential risk of fishes becoming stranded in identified pools, and close to 25 per cent of the pools were rated as having a high stranding risk. Assessment criteria included pool area, pool depth, number of days isolated and the time of year of isolation.