Analyses

Quesnel Exploitation Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. and Dalgarno, S. (2017) Quesnel Exploitation Analysis 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/986075165. Background Quesnel Lake supports a recreational fishery for large Bull Trout, Lake Trout and Rainbow Trout. To provide information on the natural and fishing mortality, trout were caught by angling and tagged with acoustic transmitters and/or reward tags. Methods Data Preparation The outing, receiver deployment and fish capture and recapture information were provided by the Ministry of Forests, Lands and Natural Resource Operations and entered by Vicky Lipinski and databased by Gary Pavan.

Middle Columbia River Fish Indexing Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. and Campos M. (2017) Middle Columbia River Fish Indexing Analysis 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/577548349. Background The key management questions to be addressed by the analyses are: Is there a change in abundance of adult life stages of fish using the Middle Columbia River (MCR) that corresponds with the implementation of a year-round minimum flow? Is there a change in growth rate of adult life stages of the most common fish species using the MCR that corresponds with the implementation of a year-round minimum flow?

Kaslo Bull Trout Productivity Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. and Hogan P.M. (2017) Kaslo Bull Trout Productivity Analysis 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1827953676. Background The Kaslo River and Keen Creek, which is a tributary of the Kaslo River, are important Bull Trout spawning and rearing tributaries on Kootenay Lake. From 2012 to 2016, field crews have night-snorkeled both systems in the fall and recorded all juvenile Bull Trout between 30 mm and 350 mm in length.

Curtis and Qua Creeks Productivity Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2016) Curtis and Qua Creeks Productivity Analysis 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1203906076. Background Water chemistry, periphyton growth, invertebrate and fish data were collected from Curtis and Qua Creeks during 2015-16 to assess their productivity. The fish data were collected by two or three pass depletion electrofishing. Methods Data Collection The data were collected by Poisson Consulting and the Salmo Streamkeepers.

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?

Lower Columbia River Rainbow Trout Spawning Analysis 2016

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2016) Lower Columbia River Rainbow Trout Spawning Analysis 2016. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1385788078. Background Each spring in the Lower Columbia River (LCR) below the Hugh L. Keenleyside Dam (HLK) and in the Lower Kootenay River (LKR) below the Brilliant Dam, thousands of Rainbow Trout spawn. Since 1992, BC Hydro has stabilized the spring discharge releases from HLK to protect Rainbow Trout redds from dewatering.

Lower Columbia River Fish Population Indexing Analysis 2015

The suggested citation for this analytic report is: Thorley, J.L. and Hogan, P.M. (2016) Lower Columbia River Fish Population Indexing Analysis 2015. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/554133251. Background In the mid 1990s BC Hydro began operating Hugh L. Keenleyside (HLK) Dam to reduce dewatering of Mountain Whitefish and Rainbow Trout eggs. The primary goal of the Lower Columbia River Fish Population Indexing program is to answer two key management questions:

Middle Columbia River Fish Indexing Analysis 2015

The suggested citation for this analytic report is: Thorley, J.L. and Beliveau, A. (2016) Middle Columbia River Fish Indexing Analysis 2015. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1492264933. Background The key management questions to be addressed by the analyses are: Is there a change in abundance of adult life stages of fish using the Middle Columbia River (MCR) that corresponds with the implementation of a year-round minimum flow? Is there a change in growth rate of adult life stages of the most common fish species using the MCR that corresponds with the implementation of a year-round minimum flow?

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.

Alouette Reservoir Kokanee Population Analysis 2015

The suggested citation for this analytic report is: Thorley, J.L., Hogan, P.M., Irvine, R.L. and Campos, M. (2016) Alouette Reservoir Kokanee Population Analysis 2015. A Poisson Consulting Analysis Report. URL: http://www.poissonconsulting.ca/f/1819975990. Background The Kokanee Age Structure Population Analysis (ALUMON #6) is a multi-year study to address potential impacts of reservoir operations on the reservoirs’ kokanee (Oncorhynchus nerka) population (Andrusak 2014). As part of the Alouette Reservoir Water Use Plan (WUP), the study’s focus is to address whether the current kokanee population is recruitment limited and if any identified recruitment limitation is related to BC Hydro operations.