Condition

Lower Columbia River Fish Population Indexing 2023

The suggested citation for this analytic appendix is:

Thorley, J.L. (2024) Lower Columbia River Fish Population Indexing 2023. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/25988200.

Background

In the mid 1990s BC Hydro began operating Hugh L. Keenleyside (HLK) Dam to reduce dewatering of Mountain Whitefish and Rainbow Trout eggs.

Cowichan Lake Cuththroat Trout Exploitation Analysis 2023

The suggested citation for this analytic appendix is:

Dalgarno, S. & Thorley, J.L. (2024) Cowichan Lake Cuththroat Trout Exploitation Analysis 2023. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/1638637752.

Background

Cowichan Lake supports an important Cutthroat Trout fishery. To provide information on the natural and fishing mortality, Cutthroat Trout were caught by angling and tagged with acoustic transmitters and/or a $100 reward tag. Some acoustic transmitters were equipped with depth and temperature sensors.

Lower Columbia River Fish Population Indexing 2022

The suggested citation for this analytic appendix is:

Thorley, J.L., Dalgarno, S., Lyons, S. (2023) Lower Columbia River Fish Population Indexing 2022. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/1392245070.

Background

In the mid 1990s BC Hydro began operating Hugh L. Keenleyside (HLK) Dam to reduce dewatering of Mountain Whitefish and Rainbow Trout eggs.

Quesnel Exploitation Analysis 2022

The suggested citation for this analytic appendix is:

Dalgarno, S. & Thorley, J.L. (2023) Quesnel Exploitation Analysis 2022. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/1230088647.

Background

Quesnel Lake supports a recreational fishery for Rainbow Trout. To provide information on the natural and fishing mortality, Rainbow Trout were caught by angling and tagged with acoustic transmitters and/or a $100 and $10 reward tag.

Duncan Lardeau Juvenile Rainbow Trout Abundance 2023

The suggested citation for this analytic report is:

Thorley, J.L., Andrusak, G.F. and Amies-Galonski, E. (2023) Duncan Lardeau Juvenile Rainbow Trout Abundance 2023. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/1491296951.

Background

Rainbow Trout rear in the Lardeau and Lower Duncan rivers. Since 2006 (with the exception of 2015) annual spring snorkel surveys have been conducted to estimate the abundance and distribution of age-1 Rainbow Trout. From 2006 to 2010 the surveys were conducted at fixed index sites. Since 2011 fish observations have been mapped to the river based on their spatial coordinates as recorded by GPS.

Cowichan Lake Cuththroat Trout Exploitation Analysis 2022

The suggested citation for this analytic appendix is:

Dalgarno, S. & Thorley, J.L. (2023) Cowichan Lake Cuththroat Trout Exploitation Analysis 2022. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/86098464.

Background

Cowichan Lake supports an important Cutthroat Trout fishery. To provide information on the natural and fishing mortality, Cutthroat Trout were caught by angling and tagged with acoustic transmitters and/or a $100 reward tag. Some acoustic transmitters were equipped with depth and temperature sensors.

Duncan Lardeau Juvenile Rainbow Trout Abundance 2022

The suggested citation for this analytic report is:

Thorley, J.L., Andrusak, G.F. and Amies-Galonski, E. (2022) Duncan Lardeau Juvenile Rainbow Trout Abundance 2022. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/1424347820.

Background

Rainbow Trout rear in the Lardeau and Lower Duncan rivers. Since 2006 (with the exception of 2015) annual spring snorkel surveys have been conducted to estimate the abundance and distribution of age-1 Rainbow Trout. From 2006 to 2010 the surveys were conducted at fixed index sites. Since 2011 fish observations have been mapped to the river based on their spatial coordinates as recorded by GPS.

Quesnel Exploitation Analysis 2021

The suggested citation for this analytic appendix is:

Dalgarno, S. & Thorley, J.L. (2022) Quesnel Exploitation Analysis 2021. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/978976227.

Background

Quesnel Lake supports a recreational fishery for Rainbow Trout. To provide information on the natural and fishing mortality, Rainbow Trout were caught by angling and tagged with acoustic transmitters and/or a $100 and $10 reward tag.

Lower Columbia River Fish Population Indexing 2021

The suggested citation for this analytic report is:

Thorley, J.L. & Hussein, N. (2022) Lower Columbia River Fish Population Indexing 2021. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/1314086833.

Background

In the mid 1990s BC Hydro began operating Hugh L. Keenleyside (HLK) Dam to reduce dewatering of Mountain Whitefish and Rainbow Trout eggs.

Horse Lake Exploitation Analysis 2021

The suggested citation for this analytic appendix is:

Thorley, J.L. & Pearson, A.D. (2022) Horse Lake Exploitation Analysis 2021. A Poisson Consulting Analytic Appendix. URL: https://www.poissonconsulting.ca/f/556371688.

Background

Horse Lake supports a recreational fishery for Lake Trout (Salvelinus namaycush). To estimate their natural and fishing mortality, individuals were caught by angling and tagged with acoustic transmitters and/or external reward tags. Acoustically tagged fish were detected by a series of seven receivers distributed through the lake as well as annual or biannual mobile detection surveys. The mobile detection survey was conducted by deploying receivers for approximately 10 minutes at 90 locations arranged on a 400 m x 400 m grid. The external reward tags included a phone number for anglers to report their recaptures. In 2009 and 2021, a summer profundal index netting (SPIN) survey was done on the lake.