The suggested citation for this analytic
report is:
Thorley, J.L. (2019) Middle Columbia River Fish Indexing Analysis 2018.
A Poisson Consulting Analysis Report. URL:
https://www.poissonconsulting.ca/f/1882094716.
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?
- 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?
- 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 and
diversity. The year-round minimum flow was implemented in the winter of
2010 at the same time that a fifth turbine was added.