A Model of the Effects of Flow Fluctuations on Fall Chinook Salmon Spawning Habitat Availability in the Columbia River

2008 ◽  
Vol 28 (6) ◽  
pp. 1894-1910 ◽  
Author(s):  
David R. Geist ◽  
Christopher J. Murray ◽  
Timothy P. Hanrahan ◽  
Yulong Xie
Keyword(s):  
Chinook Salmon ◽  
Columbia River ◽  
Habitat Availability ◽  
Spawning Habitat ◽  
Flow Fluctuations

Suitability criteria analyzed at the spatial scale of redd clusters improved estimates of fall chinook salmon (Oncorhynchus tshawytscha) spawning habitat use in the Hanford Reach, Columbia River

2000 ◽  
Vol 57 (8) ◽  
pp. 1636-1646 ◽  
Author(s):  
David R Geist ◽  
Julia Jones ◽  
Christopher J Murray ◽  
Dennis D Dauble
Keyword(s):  
Habitat Use ◽  
Spatial Scale ◽  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Columbia River ◽  
Water Velocity ◽  
Point Pattern ◽  
Spawning Habitat ◽  
Cluster Location ◽  
Hanford Reach

We improved our predictions of fall chinook salmon (Oncorhynchus tshawytscha) habitat use by analyzing spawning habitat at the spatial scale of redd clusters. Spatial point pattern analyses indicated that redd clusters in the Hanford Reach, Columbia River, were consistent in their location from 1994 to 1995. Redd densities were 16.1 and 8.9 redds·ha-1 in 1994 and 1995, respectively, and individual redds within clusters were usually less than 30 m apart. Pattern analysis also showed strong evidence that redds were uniformly distributed within the clusters where interredd distances ranged from 2 to 5 m. Redd clusters were found to occur predominantly where water velocity was between 1.4 and 2 m·s-1, water depth was 2-4 m, and lateral slope of the riverbed was less than 4%. This habitat use represented a narrower range of use than previously reported for adult fall chinook salmon. Logistic regression analysis determined that water velocity and lateral slope were the most significant predictors of redd cluster location over a range of river discharges. Overestimates of available spawning habitat lead to nonachievable goals for protecting and restoring critical salmonid habitat. Better predictions of spawning habitat may be possible if cluster-specific characteristics are used.

A Spatial Model to Assess the Effects of Hydropower Operations on Columbia River Fall Chinook Salmon Spawning Habitat

2009 ◽  
Vol 29 (5) ◽  
pp. 1379-1405 ◽  
Author(s):  
James R. Hatten ◽  
Kenneth F. Tiffan ◽  
Donald R. Anglin ◽  
Steven L. Haeseker ◽  
Joseph J. Skalicky ◽  
...  
Keyword(s):  
Chinook Salmon ◽  
Spatial Model ◽  
Columbia River ◽  
Spawning Habitat

An estimate of chinook salmon (Oncorhynchus tshawytscha) spawning habitat and redd capacity upstream of a migration barrier in the upper Columbia River

2004 ◽  
Vol 61 (1) ◽  
pp. 23-33 ◽  
Author(s):  
Timothy P Hanrahan ◽  
Dennis D Dauble ◽  
David R Geist
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Columbia River ◽  
Fish Passage ◽  
Habitat Characteristics ◽  
Anadromous Fish ◽  
Facilities Management ◽  
Spawning Habitat ◽  
High Quality ◽  
Complex Issue

Chief Joseph Dam on the Columbia River is the upstream terminus for anadromous fish because of its lack of fish passage facilities. Management agencies are currently evaluating the feasibility of reintroducing anadromous fish upriver of Chief Joseph Dam. We evaluated the physical characteristics of potential fall chinook salmon (Oncorhynchus tshawytscha) spawning habitat in the upper section of Chief Joseph Reservoir. The objectives were to estimate the location and quantity of potential spawning habitat and to determine the redd capacity of the area based on spawning habitat characteristics. The suitability of the study area was estimated through the use of geomorphic analysis, empirical physical data, and modeled hydraulic data. We estimated that 5% (48.7 ha) of the study area contains potentially suitable fall chinook salmon spawning habitat. Potential spawning habitat is primarily limited by deep water and low water velocities, resulting in 20% (9.6 ha) of the potential spawning habitat being characterized as high quality. Estimates of redd capacity within potential spawning habitat range from 207 to 1599 redds. The results of our study provide fisheries managers with useful information for evaluating the complex issue of reintroducing anadromous fish to the Columbia River upstream of Chief Joseph Dam.

Estimates of Chinook Salmon Spawning Habitat in a Blocked Reach of the Columbia River Upstream of Grand Coulee Dam

2020 ◽  
Vol 94 (2) ◽  
Author(s):  
Brian J. Bellgraph ◽  
Casey Baldwin ◽  
Lysel Garavelli ◽  
Zannatul Haque ◽  
William Perkins ◽  
...  
Keyword(s):  
Chinook Salmon ◽  
Columbia River ◽  
Spawning Habitat ◽  
Grand Coulee Dam ◽  
Grand Coulee

LANDSCAPE-LEVEL MODEL TO PREDICT SPAWNING HABITAT FOR LOWER COLUMBIA RIVER FALL CHINOOK SALMON (ONCORHYNCHUS TSHAWYTSCHA)

2011 ◽  
Vol 29 (3) ◽  
pp. 297-312 ◽  
Author(s):  
D. Shallin Busch ◽  
Mindi Sheer ◽  
Kelly Burnett ◽  
Paul McElhany ◽  
Tom Cooney
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Columbia River ◽  
Spawning Habitat ◽  
Level Model ◽  
Landscape Level

Route selection in a large river during the homing migration of Chinook salmon (Oncorhynchus tshawytscha)

2006 ◽  
Vol 63 (8) ◽  
pp. 1752-1762 ◽  
Author(s):  
Matthew L Keefer ◽  
Christopher C Caudill ◽  
Christopher A Peery ◽  
Theodore C Bjornn
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Columbia River ◽  
Large River ◽  
Migration Route ◽  
Route Selection ◽  
Behavioral Differences ◽  
Long Distance ◽  
Selection Decisions ◽  
Efficient Route

Upstream-migrating adult salmon must make a series of correct navigation and route-selection decisions to successfully locate natal streams. In this field study, we examined factors influencing migration route selections early in the migration of 4361 radio-tagged adult Chinook salmon (Oncorhynchus tshawytscha) as they moved upstream past dams in the large (~1 km wide) Columbia River. Substantial behavioral differences were observed among 11 conspecific populations, despite largely concurrent migrations. At dams, Chinook salmon generally preferred ladder passage routes adjacent to the shoreline where their natal tributaries entered, and the degree of preference increased as salmon proximity to natal tributaries increased. Columbia River discharge also influenced route choices, explaining some route selection variability. We suggest that salmon detect lateral gradients in orientation cues across the Columbia River channel that are entrained within tributary plumes and that these gradients in cues can persist downstream for tens to hundreds of kilometres. Detection of tributary plumes in large river systems, using olfactory or other navigation cues, may facilitate efficient route selection and optimize energy conservation by long-distance migrants.

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