Koocanusa Kokanee Enumeration. Unpublished report for Fish and Wildlife Compensation Program
Author: V.A.S.T.Resource Solutions
Abundance of spawning Kokanee in the Upper Kootenay River
An estimated 100,135 Kokanee spawned in the study area in 2018. Despite a slight decline compared to 2017 (-2.5%), Kokanee abundance remained relatively constant over the past three years following the sharp increase observed in 2015 which immediately rescinded in 2016.
The average fork length of Kokanee in 2018 was 277.5mm. The mean size of Koocanusa Kokanee has been consistently increasing since the all-time low of 200.7mm recorded in 2015. Female fecundity has also been increasing although there was a wide range of variation between individuals in 2018. The extrapolated egg production assuming a 1:1 male-female ratio in the population is 18.1 million egg
An estimated 100,135 Kokanee spawned in the study area in 2018. Despite a slight decline compared to 2017 (-2.5%), Kokanee abundance remained relatively constant over the past three years following the sharp increase observed in 2015 which immediately rescinded in 2016.
The average fork length of Kokanee in 2018 was 277.5mm. The mean size of Koocanusa Kokanee has been consistently increasing since the all-time low of 200.7mm recorded in 2015. Female fecundity has also been increasing although there was a wide range of variation between individuals in 2018. The extrapolated egg production assuming a 1:1 male-female ratio in the population is 18.1 million egg
Resources Data:
Name: UKE-F19-F-2859-DCA_FINAL_REPORT-VAST-2018_KOOCANU_1568912975392_8911341702
Format: PDF
URL: http://a100.gov.bc.ca/appsdata/acat/documents/r57462/UKE-F19-F-2859-DCA_Final_Report-Vast-2018_Koocanu_1568912975392_8911341702.pdf
Additional Info
Study Years: 2018
Published: 2019
Koocanusa Kokanee Enumeration. Unpublished report for Fish and Wildlife Compensation Program
Author: V.A.S.T.Resource Solutions
Abundance of spawning Kokanee in the Upper Kootenay River
Summary
An estimated 100,135 Kokanee spawned in the study area in 2018. Despite a slight decline compared to 2017 (-2.5%), Kokanee abundance remained relatively constant over the past three years following the sharp increase observed in 2015 which immediately rescinded in 2016.
The average fork length of Kokanee in 2018 was 277.5mm. The mean size of Koocanusa Kokanee has been consistently increasing since the all-time low of 200.7mm recorded in 2015. Female fecundity has also been increasing although there was a wide range of variation between individuals in 2018. The extrapolated egg production assuming a 1:1 male-female ratio in the population is 18.1 million egg