Effects of Flow Changes on White Sturgeon Spawning, Incubation, and Early Rearing Habitats in the Middle Columbia River (CLBMON-20 and CLBMON-54
Author: L.R. Hildebrand, A. Lin, M.C. Hildebrand, D. Fissel
This report addresses two BCH WLR monitoring programs that overlap in their data collection needs and scope: CLBMON-20 (Middle Columbia River White Sturgeon Spawning Habitat Assessment) and CLBMON-54 (Effects of flow changes on egg incubation and early rearing). The objective of these studies was to model the effects of Revelstoke Dam flows and ALR levels on velocity patterns in the White Sturgeon egg deposition/incubation and early rearing area. Using these results and what is known about White Sturgeon spawning and early rearing habitats, inferences on potential effects on White Sturgeon spawning suitability could then be drawn.
Refer to Sections 7.0-7.5 from pp 51-59 of the document for summary of results as they pertain to the following management questions:
What are the depth, hydraulic properties (velocity/turbulence) and substrate conditions in the identified white sturgeon egg incubation and suspected early rearing habitat area(s) below Revelstoke Dam?
How does Revelstoke Dam (including the addition of Unit 5) and Arrow Lakes Reservoir operations affect hydraulic conditions in this/these area(s)?
How do these hydraulic conditions relate to incubation and early rearing habitat suitability (quality and quantity) for White Sturgeon?
Can proposed minimum flows and spawning flow modifications to the operations of Revelstoke Dam protect or enhance middle Columbia River white sturgeon incubation and early rearing habitat?
Can modifications be made to operations of Revelstoke Dam and Arrow Lakes Reservoir to protect or enhance White Sturgeon incubation habitat?
Refer to Sections 7.0-7.5 from pp 51-59 of the document for summary of results as they pertain to the following management questions:
What are the depth, hydraulic properties (velocity/turbulence) and substrate conditions in the identified white sturgeon egg incubation and suspected early rearing habitat area(s) below Revelstoke Dam?
How does Revelstoke Dam (including the addition of Unit 5) and Arrow Lakes Reservoir operations affect hydraulic conditions in this/these area(s)?
How do these hydraulic conditions relate to incubation and early rearing habitat suitability (quality and quantity) for White Sturgeon?
Can proposed minimum flows and spawning flow modifications to the operations of Revelstoke Dam protect or enhance middle Columbia River white sturgeon incubation and early rearing habitat?
Can modifications be made to operations of Revelstoke Dam and Arrow Lakes Reservoir to protect or enhance White Sturgeon incubation habitat?
Resources Data:
Name: PART1-CLBMON-20-CLBMON-54-YR1-4-2014-09-12
Format: PDF
URL: https://www.bchydro.com/content/dam/BCHydro/customer-portal/documents/corporate/environment-sustainability/water-use-planning/southern-interior/part1-clbmon-20-clbmon-54-yr1-4-2014-09-12.pdf
Additional Info
Study Years: 2014, 2013, 2012, 2011, 2010
Published: 2014
Effects of Flow Changes on White Sturgeon Spawning, Incubation, and Early Rearing Habitats in the Middle Columbia River (CLBMON-20 and CLBMON-54
Author: L.R. Hildebrand, A. Lin, M.C. Hildebrand, D. Fissel
Tags: Acipenser Transmontanus, Arrow Lakes Reservoir, CLBMON20, CLBMON54, Incubation, Middle Columbia River, Minimum Flows Management, Rearing Habitat, Reservoir Operations, Spawning, Spawning Habitat, White Sturgeon
This report addresses two BCH WLR monitoring programs that overlap in their data collection needs and scope: CLBMON-20 (Middle Columbia River White Sturgeon Spawning Habitat Assessment) and CLBMON-54 (Effects of flow changes on egg incubation and early rearing). The objective of these studies was to model the effects of Revelstoke Dam flows and ALR levels on velocity patterns in the White Sturgeon egg deposition/incubation and early rearing area. Using these results and what is known about White Sturgeon spawning and early rearing habitats, inferences on potential effects on White Sturgeon spawning suitability could then be drawn.
Summary
Refer to Sections 7.0-7.5 from pp 51-59 of the document for summary of results as they pertain to the following management questions:
What are the depth, hydraulic properties (velocity/turbulence) and substrate conditions in the identified white sturgeon egg incubation and suspected early rearing habitat area(s) below Revelstoke Dam?
How does Revelstoke Dam (including the addition of Unit 5) and Arrow Lakes Reservoir operations affect hydraulic conditions in this/these area(s)?
How do these hydraulic conditions relate to incubation and early rearing habitat suitability (quality and quantity) for White Sturgeon?
Can proposed minimum flows and spawning flow modifications to the operations of Revelstoke Dam protect or enhance middle Columbia River white sturgeon incubation and early rearing habitat?
Can modifications be made to operations of Revelstoke Dam and Arrow Lakes Reservoir to protect or enhance White Sturgeon incubation habitat?