Yakima River Radio-Telemetry Study: Spring Chinook Salmon, 1991-1992 Annual Report.

Hockersmith, Eric E.

doi:10.2172/102516

Cited by 3 publications

(6 citation statements)

References 2 publications

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“…Yakima River spring Chinook salmon exhibit a unique migration strategy that may make them more susceptible to gastric tagging than other species. An early entry to freshwater (∼180 d prior to spawning) is followed by a prolonged upstream migration and prespawn holding period (Hockersmith et al 1994). Dramatic physiological changes occur with changes in the osmotic environment, cessation of feeding, upregulation of reproductive hormones, and final sexual maturation.…”

Section: Discussionmentioning

confidence: 99%

“…Transmitters were cylindrical (6.0 × 1.6 cm, 29 g) and had a 12-cm antenna that did not trail outside the buccal cavity (Hockersmith et al 1994). Tags were wrapped with a 3-mm-thick band of latex surgical tubing to increase roughness and reduce regurgitation (Keefer et al 2004).…”

Section: Methodsmentioning

confidence: 99%

“…We conducted a radiotelemetry study in 2008 to examine the behavior of Yakima River spring Chinook salmon during the late stages of their spawning migration. We chose gastric implantation as an attachment method to minimize handling and because this method had resulted in high rates of survival 853 and tag retention in other studies of adult spring Chinook salmon in the Columbia River basin (Hockersmith et al 1994;Keefer et al 2005). However, in our 2008 telemetry study relatively few tagged fish moved upstream from their release site, well below historical spawning reaches.…”

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confidence: 99%

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Experimental Evaluation of Adult Spring Chinook Salmon Radio‐Tagged during the Late Stages of Spawning Migration

Corbett¹,

Moser²,

Dittman³

2012

N American J Fish Manag

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We conducted an experiment to assess the effects of radio‐ tagging on adult spring Chinook salmon Oncorhynchus tshawytscha during the late stages of their spawning migration. Fish were captured at Roza Dam, Yakima River, Washington (river kilometer 208). Each fish had a radio tag inserted into the stomach via the esophagus and was then transported to a raceway and held for 50 d to assess survival. In the same raceway we also held a control group that was handled but not tagged and a group with externally attached transmitters. Survival of fish with gastrically implanted radio tags was low (10%), while 70% of controls and 90% of fish with externally mounted tags survived to the end of the experiment. Postmortem dissections revealed that after implantation, some radio tags had migrated from the stomach position to the posterior digestive tract and peritoneum. Fish from all treatments exhibited some level of tissue degeneration of the gastrointestinal tract. Gastric implantation should be used with caution, particularly for fish at vulnerable life stages. For spring Chinook salmon in the Columbia River basin, tagging with gastric implants should be conducted early in the freshwater migration to improve survival and reduce tag effects. Received September 30, 2011; accepted June 4, 2012

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Experimental Evaluation of Adult Spring Chinook Salmon Radio‐Tagged during the Late Stages of Spawning Migration

Corbett¹,

Moser²,

Dittman³

2012

N American J Fish Manag

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“…The transmitters have little effect on the feeding behavior of returning coho because the fish don't feed while in the spawning stream, and they die after spawning. However, several studies have indicated that adult salmonid mortality due primarily to handling stress may range from 10-15% (Hockersmith et al 1995;Hockersmith et al 1994). The marked fish will be followed either on foot, in vehicles, or from the air, or by using a fixed detector at a dam (e.g., Tumwater), to identify spawning locations.…”

Section: Radio-telemetrymentioning

confidence: 99%

Mid-Columbia Coho Reintroduction Feasibility Project : Final Environmental Assessment and Finding of No Significant Impact.

Tribes¹

1999

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“…Between 1982 and 1995, the mean number of Naches spring chinook salmon returns to the mouth of the Yakima River was 924 and the mean spawning escapement was 802 (YIN, 1996). The biology of Naches spring chinook salmon can be found in Major and Mighell (1969), and Hockersmith et al (1994).…”

Section: Naches River Spring Chinook Salmonmentioning

confidence: 99%

Yakima River Species Interactions Studies, Progress Report, 1995-1997.

Pearsons¹

1998

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Executive SummarySpecies interactions research was initiated in 1989 to investigate ecological interactions among fish in response to proposed supplementation of salmon and steelhead in the upper Yakima River basin. This is the sixth of a series of progress reports that address species interactions research and pre-supplementation monitoring of fishes in the Yakima River basin. Data have been collected prior to supplementation to characterize the ecology and demographics of non-target taxa (NTT) and target taxon, predict the potential interactions that may occur as a result of supplementation, and develop methods to monitor interactions and supplementation success. Major topics of this report are associated with the ecology and life history of NTT, interactions experimentation, methods for sampling, risk assessment, and risk minimization. This report is organized into 14 chapters, with a general introduction preceding the first chapter. This annual report summarizes data collected primarily by the Washington Department of Fish and Wildlife (WDFW) between January 1, 1995 and December 31, 1997 in the Yakima basin, however these data were compared to data from previous years to identify preliminary trends and patterns. Major preliminary findings from each of the chapters included in this report are described below.o Objectives for highly valued non-target taxa (NTT) were described as acceptable impacts to their current status that could be attributed to spring chinook salmon supplementation. Impacts to a NTT's distribution, abundance, or size structure in excess of the acceptable impact would indicate a failure to achieve an objective. The following objectives for NTT are recommended: accept no impact -bull trout, westslope cutthroat trout, Pacific lamprey; accept a maximum of 5% impact -Marion Drain fall chinook salmon, upper Yakima steelhead, mountain sucker, leopard dace, sand roller; accept a maximum of 10% impact -resident rainbow trout in the mainstem Yakima River, Naches steelhead, Satus steelhead, Toppenish steelhead, Naches spring chinook salmon, American River spring chinook salmon; accept a maximum of 40% impactmountain whitefish, resident rainbow trout in tributaries; and accept impacts up to a maximum that maintains all native species at sustainable levels. These objectives reflect the goal of having all native species at sustainable levels including populations robust enough to support harvest and recreation.o Certain species or guilds within an ecosystem may interact strongly with spring chinook salmon resulting in failure to achieve desired numerical goals of spring chinook salmon through supplementation. Monitoring the influence of strong interactor taxa relative to spring chinook salmon will aid in interpreting factors that may influence YFP success. Recommended objectives for strong interactors are of two types: 1) identify and reduce impacts of unnaturally high predatory, pathogenic, and competitory interactions that limit spring chinook salmon productivity, and 2) identify, conserve and enhance...

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Yakima River Radio-Telemetry Study: Spring Chinook Salmon, 1991-1992 Annual Report.

Cited by 3 publications

References 2 publications

Experimental Evaluation of Adult Spring Chinook Salmon Radio‐Tagged during the Late Stages of Spawning Migration

Experimental Evaluation of Adult Spring Chinook Salmon Radio‐Tagged during the Late Stages of Spawning Migration

Mid-Columbia Coho Reintroduction Feasibility Project : Final Environmental Assessment and Finding of No Significant Impact.

Yakima River Species Interactions Studies, Progress Report, 1995-1997.

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