Early Observations from Monitoring a Reintroduction Program: Return of Sockeye Salmon to a Nursery Lake of Historical Importance

Matala, Andrew P.; Narum, Shawn R.; Saluskin, Brian; Johnston, Mark V.; Newell, Jeremiah E.; Fast, David E.; Galbreath, Peter F.

doi:10.1002/tafs.10133

Cited by 9 publications

(30 citation statements)

References 78 publications

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“…The strategy of using two separate stocks of adult sockeye salmon in the reintroduction effort has yielded interesting results. Matala et al (2019) found that fish from the two populations exhibited spatial and temporal separation during the spawning period, with adults originating from Lake Wenatchee spawning earlier and farther upstream than adults from Osoyoos Lake. Genetic analysis of samples taken from smolts and returning adults found that 5% or less of the sampled fish were hybrids produced from mixed-stock matings.…”

Section: Yakima River Washingtonmentioning

confidence: 95%

“…Differences in reproductive success were also evident as 70% of the smolts sampled were produced from parents from Lake Wenatchee. This transferred to cohort replacement rates as well, as the Lake Wenatchee stock had a replacement rate of 0.80 compared to 0.17 for Osoyoos Lake stock (Matala et al 2019). Over the course of the study (2013-2016), 53% of the adults that were outplanted into Cle Elum Reservoir were of Lake Wenatchee-origin, 43% were of Osoyoos Lake-origin, and the remaining fish were hybrids.…”

Section: Yakima River Washingtonmentioning

confidence: 99%

“…Four natural glacial lakes in the upper Yakima River basin historically supported sockeye salmon populations that were extirpated in the early 1900s due to dam construction (Bureau of Reclamation [BOR] 2007). In 2009, the Confederated Tribes and Bands of the Yakama Nation (Yakama Nation) began reintroducing adult sockeye salmon into Cle Elum Reservoir, a lake historically used by sockeye salmon in the basin that was modified by the construction of Cle Elum Dam (rkm 345; height = 150 m) at the natural lake outlet (Matala et al 2019). The reintroduction is using donor stocks of sockeye salmon from Osoyoos Lake (British Columbia-Washington) and Lake Wenatchee (Washington).…”

Section: Yakima River Washingtonmentioning

confidence: 99%

“…The reintroduction is using donor stocks of sockeye salmon from Osoyoos Lake (British Columbia-Washington) and Lake Wenatchee (Washington). Adults from the two populations are collected using an adult trap at Priest Rapids Dam (rkm 639; height = 54 m) on the Columbia River in eastern Washington (Matala et al 2019). Trapped sockeye salmon adults are trucked from Priest Rapids Dam to Cle Elum Reservoir with a transport time of * 2 h. The number of fish available for transport varies annually based on the total run size of sockeye salmon in the Columbia River.…”

Section: Yakima River Washingtonmentioning

confidence: 99%

“…The average annual number of transported sockeye salmon was 5760 fish during 2009-2018. Outplanted adults spawn in Cle Elum Reservoir and upstream in the Cle Elum River (Matala et al 2019). A single downstream passage route, located in one of the dam's spillbays, is seasonally available for juvenile outmigrants at Cle Elum Dam when reservoir water levels are sufficiently high.…”

Section: Yakima River Washingtonmentioning

confidence: 99%

See 4 more Smart Citations

Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems

Kock

Ferguson

Keefer

et al. 2020

Rev Fish Biol Fisheries

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High-head dams are migration barriers for Pacific salmon Oncorhynchus spp. in many river systems and recovery measures for impacted stocks are limited. Trap-and-haul has been widely used in attempts to facilitate recovery but information from existing programs has not been synthesized to inform improvements to aid recovery of salmonids in systems with high-head dams. We reviewed 17 trap-and-haul programs regarding Pacific salmon to: (1) summarize information about facility design, operation and biological effects; (2) identify critical knowledge gaps; and (3) evaluate trap-and-haul as a current and future management tool. Existing programs are operated to address a range of management goals including restoring access to historical habitats, temporarily reducing exposure to dangerous in-river conditions, and reintroducing ecological processes upstream from dams. Information gathered from decades of operation on facility design criteria and fish handling protocols, and robust literature on fish collection and passage are available. While many aspects of trap-and-haul have been evaluated, effects on population productivity and sustainability remain poorly understood. Long-term and systematic studies of trap-and-haul outcomes are rare, and assessments can be confounded by concurrent management actions and broad ecological and climatic effects. Existing data suggest that performance and effectiveness vary among programs and over various time scales within programs. Although critical information gaps exist, trap-and-haul is an important management and conservation tool for providing Pacific salmonids access to historical habitats. Successful application of trap-and-haul programs requires long-term commitment and an adaptive management approach by dam owners and stakeholders, and careful planning of new programs.

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Section: Yakima River Washingtonmentioning

confidence: 95%

Section: Yakima River Washingtonmentioning

confidence: 99%

Section: Yakima River Washingtonmentioning

confidence: 99%

Section: Yakima River Washingtonmentioning

confidence: 99%

Section: Yakima River Washingtonmentioning

confidence: 99%

See 3 more Smart Citations

Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems

Kock

Ferguson

Keefer

et al. 2020

Rev Fish Biol Fisheries

View full text Add to dashboard Cite

show abstract

Adult Sockeye Salmon Responses to Transplanting Upstream of an Impassable Dam

Kock

Evans

Saluskin

et al. 2021

N American J Fish Manag

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The Yakama Nation manages a program for reintroducing Sockeye Salmon Oncorhynchus nerka upstream of Cle Elum Dam in the Yakima River basin. The program involves transplanting of a mix of adult Sockeye Salmon from two middle Columbia River donor stocks, Lake Wenatchee (WEN) and Osoyoos Lake (OSO), with the goal of establishing a self‐sustaining population in the basin. In 2017, a subset of the transplanted population was radio‐tagged and monitored to assess stock‐specific responses to transplanting, including downstream entrainment at Cle Elum Dam (“fallback”) and prespawn mortality. Tagged fish were active during the first 2 weeks after release. Some fish moved upstream into the Cle Elum River and then returned to the reservoir; other fish moved downstream and passed Cle Elum Dam. Movement within the study area diminished during August but increased in September when fish began migrating up the Cle Elum River for spawning. A greater proportion of WEN fish (76.3%) was detected entering the river compared to OSO fish (53.9%). The hazard ratio from a multistate analysis of fish behavior indicated that WEN fish were nine times more likely to enter the river than OSO fish. The WEN fish also initiated upstream movement 3 weeks earlier than OSO fish. We found that 27.0% of all tagged fish were lost to the spawning population through fallback (20.7%) and prespawn mortality (6.3%). Fallback and prespawn mortality occurred for a greater percentage of OSO fish (26.9% and 7.7%) than WEN fish (15.3% and 5.1%), but these differences were not statistically different. These results provide foundational information from the early phase of a reintroduction effort. Continued monitoring will be required as Sockeye Salmon evolve to conditions upstream of Cle Elum Dam, and results from these efforts will provide valuable insights for this reintroduction effort and others in river systems with similar characteristics.

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Survival implications of diversion entrainment for out‐migrating juvenile Chinook Salmon and steelhead

Kock,

Evans,

Perry

et al. 2024

Trans Am Fish Soc

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Efforts to ameliorate negative effects of diversion dams on aquatic species of concern are important in rivers where water withdrawal supports agricultural economies and are likely to become increasingly important with impending climate change. A multiyear study was conducted to evaluate the survival consequences of diversion dam passage for juvenile Chinook Salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) in the highly managed Yakima River, Washington. Canal entrainment and passage were evaluated at four diversion dams encountered by seaward migrating juvenile salmon and steelhead. Fish pass dams via spillbays or enter canals with downstream fish‐screening facilities designed to collect entrained fish and return them to the mainstem river. Percent entrainment into canals was substantial (6–59%) at three of the four diversion dams studied, and entrainment probability was positively associated with the proportion of streamflow diverted into canals. Survival probability estimates for groups of tagged fish that were entrained into canals were lower than survival probability estimates for tagged fish that passed through spillbays on the dams. Absolute differences in survival probabilities between routes ranged from 0.099 to 0.369, demonstrating that canal entrainment reduced survival of outmigrating juvenile Chinook Salmon and steelhead. We also found that entrainment resulted in migration delays, which could further affect survival because fish are increasingly exposed to predation and decreased water quality as water temperature increases throughout the migration season. These results highlight the need to limit entrainment of juvenile salmon and steelhead at diversion dams in rivers where salmon recovery is important.

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Early Observations from Monitoring a Reintroduction Program: Return of Sockeye Salmon to a Nursery Lake of Historical Importance

Cited by 9 publications

References 78 publications

Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems

Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems

Adult Sockeye Salmon Responses to Transplanting Upstream of an Impassable Dam

Survival implications of diversion entrainment for out‐migrating juvenile Chinook Salmon and steelhead

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