Largescale Sucker

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: https://www.poissonconsulting.ca/f/577548349.

Background

The key management questions to be addressed by the analyses are:

  1. 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?
  2. 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?
  3. Is there a change in body condition (measured as a function of relative weight to length) of adult life stages of fish using the MCR that corresponds with the implementation of a year-round minimum flow?
  4. Is there a change in spatial distribution of adult life stages of fish using the MCR that corresponds with the implementation of a year-round minimum flow?

Other objectives include the estimation of species richness, species diversity (evenness) and the modeling of environmental-fish metric relationships and scale age data. The year-round minimum flow was implemented in the winter of 2010 at the same time that a fifth turbine was added.

2017-03-28
Middle Columbia River Fish Indexing Analysis 2014

The suggested citation for this analytic report is:

Thorley, J.L. and Beliveau, A. (2015) Middle Columbia River Fish Indexing Analysis 2014. A Poisson Consulting Analysis Report. URL: https://www.poissonconsulting.ca/f/1446318417.

Background

The key management questions to be addressed by the analyses are:

  1. 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?
  2. 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?
  3. Is there a change in body condition (measured as a function of relative weight to length) of adult life stages of fish using the MCR that corresponds with the implementation of a year-round minimum flow?
  4. Is there a change in spatial distribution of adult life stages of fish using the MCR that corresponds with the implementation of a year-round minimum flow?

Other objectives include the estimation of species richness, species diversity (evenness) and the modeling of environmental-fish metric relationships. The year-round minimum flow was implemented in the winter of 2010 at the same time that a fifth turbine was added.

2015-04-01