Item talk:Q259064
From geokb
{
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"name": "Wind River subbasin restoration annual report of USGS activities January 2017 through December 2017",
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"inLanguage": "en",
"datePublished": "2019",
"dateModified": "2019-08-06",
"abstract": "We used Passive Integrated Transponder (PIT)-tagging and a series of instream PIT-tag\u00a0interrogation systems (PTISs) to investigate life-histories, populations, and efficacy of habitat\u00a0restoration actions for wild Steelhead Oncorhynchus mykiss in the Wind River subbasin, WA.\u00a0No hatchery Steelhead have been planted in the Wind River subbasin since 1997, and hatchery\u00a0adults are estimated to be less than one percent of adults in most years (pers comm. Thomas\u00a0Buehrens, Washington Department of Fish and Wildlife). Numerous restoration actions have\u00a0been implemented in the subbasin, including Hemlock Dam removal on Trout Creek in 2009.\u00a0Data from our study, and companion work by Washington Department of Fish and Wildlife\u00a0(WDFW), are contributing to Bonneville Power Administration\u2019s (BPA) Research Monitoring\u00a0and Evaluation (RM&E) Program Strategy of Fish Population Status Monitoring\u00a0(www.cbfish.org/ProgramStrategy.mvc/ViewProgramStrategySummary/1),\u00a0 specifically the substrategies of: 1) Assessing the Status and Trends of Diversity of Natural Origin Fish Populations\u00a0and to Uncertainties Research regarding differing life histories of a wild Steelhead population, 2)\u00a0Assessing the Status and Trend of Adult Natural Origin Fish Populations, and 3) Monitoring and\u00a0Evaluating the Effectiveness of Tributary Habitat Actions Relative to Environmental, Physical,\u00a0or Biological Performance Objectives. Our headwaters parr PIT tagging, WDFW parr, smolt, and\u00a0adult tagging and our instream PTISs are providing data movements and life histories of parr,\u00a0smolt, and adult Steelhead.\u00a0During summer 2017, we PIT-tagged age-0 and age-1 Steelhead parr in headwater areas of the Wind River subbasin to characterize population traits and investigate life-history diversity,\u00a0including growth and pre-smolt downstream movement. Repeat sampling and smolt traps\u00a0provide opportunities for recapture, and instream PTISs and Columbia River infrastructure\u00a0provide opportunity for detection of PIT-tagged fish.\u00a0Throughout the year, we maintained a series of instream PTISs to monitor movement of\u00a0tagged Steelhead parr, smolts, and adults. This included adding the second array to our upper\u00a0Wind River PITS, increasing solar capacity and adding improved power cables to some sites.\u00a0Detections at the instream PTISs have demonstrated trends of age-0 and age-1 parr\u00a0emigration from natal areas during summer and fall, in addition to the expected movement of\u00a0parr and smolts in spring. These data are increasing our understanding of varied life histories of\u00a0juvenile Steelhead; paired with other Steelhead population work in the subbasin we hope to\u00a0begin to understand factors which may influence parr movements. Long-term monitoring of PIT-tagged fish over multiple years is providing information on contribution of various life-history\u00a0strategies to smolt production and adult returns.\u00a0 Movements of PIT-tagged adult Steelhead were also recorded at instream PTISs. These\u00a0data have allowed us to assess adult returns to tributary watersheds within the Wind River\u00a0subbasin. Determination of adult use of tributary watersheds is providing data to contribute to\u00a0evaluation of the efficacy of the removal of Hemlock Dam on Trout Creek. Hemlock Dam,\u00a0located at rkm 2.0 of Trout Creek was removed in summer 2009. The dam had had contributed to\u00a0hydrologic impairment of Trout Creek and had potential negative effects on Steelhead. The\u00a0improved upper Wind River PTIS (better site characteristics and grid power) will allow estimates\u00a0of subbasin adult escapement upstream of that site.\u00a0Evaluating and planning restoration efforts are of interest to many managers and agencies\u00a0to ensure efficient use of resources. The evaluation of various life-histories of Lower Columbia\u00a0River Steelhead within the Wind River subbasin will provide information to better track\u00a0populations, and to direct habitat restoration and water allocation planning. Increasingly detailed\u00a0Viable Salmonid Population information, such as that provided by PIT-tagging and instream\u00a0PTISs networks like those we operate in the Wind River subbasin, will provide data to inform\u00a0policy and management, as life-history strategies and production bottlenecks are identified and\u00a0understood.",
"description": "53 p.",
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"name": "Bonneville Power Administration"
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"name": "Jezorek, Ian",
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"name": "Western Fisheries Research Center",
"url": "https://www.usgs.gov/centers/western-fisheries-research-center"
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"name": "Western Fisheries Research Center",
"url": "https://www.usgs.gov/centers/western-fisheries-research-center"
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