Duncan River

Lower Duncan River Rainbow Trout Spawning Analysis 2017

The suggested citation for this analytic report is: Thorley, J.L. & Dalgarno, S.I.J. (2018) Lower Duncan River Rainbow Trout Spawning Analysis 2017. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/897442882. Background The Lardeau River (LAR) flows 45 km from Trout Lake to join the Lower Duncan River approximately 1 km downstream of Duncan Dam (DDM). The Duncan River downstream of the Lardeau River (DRL) then extends a further 11 km downstream to Kootenay Lake.

Lower Duncan River Kokanee AUC Analysis 2017

The suggested citation for this analytic report is: Thorley, J.L. (2018) Lower Duncan River Kokanee AUC Analysis 2017. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1498798685. Background Every fall, Kokanee from Kootenay Lake spawn in the Duncan-Lardeau system. Since 2008 aerial surveys have been conducted in the Lower Duncan River (LDR) to enumerate the number of kokanee spawners. The management questions are: What is the spawn run timing, fry emergence timing, and relative intensity of kokanee spawning in the Lower Duncan River?

Duncan Lardeau Juvenile Rainbow Trout Abundance 2017

The suggested citation for this analytic report is: Thorley, J.L., Muir, C.D., Dalgarno, S. and Hogan P.M. (2017) Duncan Lardeau Juvenile Rainbow Trout Abundance 2017. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/492093238. 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 site.

Lower Duncan River Kokanee AUC Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. (2016) Lower Duncan River Kokanee AUC Analysis 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1172999120. Background Every fall, Kokanee from Kootenay Lake spawn in the Duncan-Lardeau system. Since 2008 aerial surveys have been conducted in the Lower Duncan River (LDR) to enumerate the number of kokanee spawners. The management questions are: What is the spawn run timing, fry emergence timing, and relative intensity of kokanee spawning in the Lower Duncan River?

Lardeau-Lower Duncan River Juvenile Rainbow Trout Abundance and Stock-Recruitment Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2016) Lardeau-Lower Duncan River Juvenile Rainbow Trout Abundance and Stock-Recruitment 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/6848898. Background Juvenile Age-1 Gerrard Rainbow Trout from Kootenay Lake rear in the Lardeau and Lower Duncan rivers. From 2006 to 2014 and in 2016 spring snorkel surveys were done to estimate the abundance of Age-1 fish. From 2006 and 2010 the surveys were conducted at fixed index site.

Lower Duncan River Kokanee AUC Analysis 2015

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2015) Lower Duncan River Kokanee AUC Analysis 2015. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1629724501. Background Since 2008 aerial surveys have been conducted in the Lower Duncan River (LDR) to count the number of kokanee spawners. The primary objectives of the current analysis report are to: Estimate the aerial observer efficiency based on ground counts. Estimate the annual kokanee spawner abundance from the aerial counts.

Lardeau-Lower Duncan River Age-1 Rainbow Trout Abundance and Stock-Recruitment Analysis 2015

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2015) Lardeau-Lower Duncan River Age-1 Rainbow Trout Abundance and Stock-Recruitment Analysis 2015. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1007329429. Background Juvenile Gerrard Rainbow Trout from Kootenay Lake rear in the Lardeau and Lower Duncan rivers. Between 2006 and 2014 spring snorkel surveys have been undertaken to estimate the abundance of the age-1 fish. Between 2006 and 2010 the surveys were conducted at fixed index site.

Lower Duncan River Kokanee AUC Analysis 2014

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2015) Lower Duncan River Kokanee AUC Analysis 2014. URL: http://www.poissonconsulting.ca/f/423435381. Background Since 2008 aerial surveys have been conducted in the Lower Duncan River (LDR) to count the number of kokanee spawners. The primary objectives of the current analysis report are to: Estimate the aerial observer efficiency based on ground counts. Estimate the annual kokanee spawner abundance from the aerial counts.

Lower Duncan River Kokanee AUC Analysis 2013

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2015) Lower Duncan River Kokanee AUC Analysis 2013. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/577555490. Background Since 2008 aerial surveys have been conducted in the Lower Duncan River (LDR) to count the number of kokanee spawners. The primary objectives of the current analysis report are to Estimate the aerial observer efficiency based on ground counts Estimate the annual kokanee spawner abundance from the aerial counts Estimate the peak spawn timing Methods Data The data were provided by LGL Limited in the form of an Access database and an Excel spreadsheet.

Lardeau and Lower Duncan River Juvenile Rainbow Trout Analysis 2014

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2014) Lardeau and Lower Duncan River Juvenile Rainbow Trout Analysis 2014. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/493327817. Background Juvenile Gerrard Rainbow Trout from Kootenay Lake rear in the Lardeau and Lower Duncan Rivers. The aims of the current analysis are to: Estimate the spring abundance of age-1 juvenile rainbow trout by year from snorkel survey data.