Download or read book Distribution and Spawning Behavior of Hatchery and Natural Adult Chinook Salmon Released Upstream of Weirs in Two Idaho Rivers written by Paul M. Sankovich and published by . This book was released on 1992 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution and Spawning Behavior of Hatchery and Natural Chinook Salmon in the Upper Ends of Idaho s South Fork Salmon and Salmon Rivers written by Paul M. Sankovich and published by . This book was released on 1995 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Focus written by and published by . This book was released on 1991 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Focus on Renewable Natural Resources written by and published by . This book was released on 1985 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spawning Success of Hatchery Spring Chinook Salmon Outplanted as Adults in the Clearwater River Basin Idaho 2001 written by and published by . This book was released on 2002 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study described in this report evaluated spawning distribution, overlap with naturally-arriving spawners, and pre-spawning mortality of spring chinook salmon, Oncorhynchus tshawytscha, outplanted as adults in the Clearwater River Subbasin in 2001. Returns of spring chinook salmon to Snake River Basin hatcheries and acclimation facilities in 2001 exceeded needs for hatchery production goals in Idaho. Consequently, management agencies including the U.S. Fish and Wildlife Service (FWS), Idaho Department of Fish and Game (IDFG) and Nez Perce Tribe (NPT) agreed to outplant chinook salmon adults as an adaptive management strategy for using hatchery adults. Adult outplants were made in streams or stream sections that have been typically underseeded with spawners. This strategy anticipated that outplanted hatchery chinook salmon would spawn successfully near the areas where they were planted, and would increase natural production. Outplanting of adult spring chinook salmon from hatcheries is likely to be proposed in years when run sizes are similar to those of the 2001 run. Careful monitoring of results from this year's outplanting can be used to guide decisions and methods for future adult outplanting. Numbers of spring chinook salmon outplanted was based on hatchery run size, hatchery needs, and available spawning habitat. Hatcheries involved in outplanting in the Clearwater Basin included Dworshak National Fish Hatchery, Kooskia National Fish Hatchery, Clearwater Anadromous Fish Hatchery, and Rapid River Fish Hatchery. The NPT, IDFG, FWS, and the National Marine Fisheries Service (NMFS) agreed upon outplant locations and a range of numbers of spring chinook salmon to be outplanted (Table 1). Outplanting occurred mainly in the Selway River Subbasin, but additional outplants were made in tributaries to the South Fork Clearwater River and the Lochsa River (Table 1). Actual outplanting activities were carried out primarily by the NPT with supplemental outplanting done in the Lochsa basin by IDFG. Fish were trucked from the hatcheries to outplant sites.

Download or read book Evaluation of Adult Fish Weirs Used to Control the Proportion of Hatchery origin Fall Chinook Salmon in Six Washington Lower Columbia River Tributaries 2013 2017 written by Jeremy Wilson (Fisheries biologist) and published by . This book was released on 2019 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Chinook salmon (Oncorhynchus tshawytcha) in the Lower Columbia River (LCR) Evolutionarily Significant Unit (ESU) were listed under the Endangered Species Act in 1999. The Hatchery Scientific Review Group, which completed a review of hatcheries throughout the Columbia Basin, found that interactions between natural- and hatchery-origin fish on the spawning grounds was one of the key factors limiting recovery of naturally spawning populations of LCR Chinook salmon (HSRG 2009b). In 2009, the Washington Fish and Wildlife Commission adopted the Fishery and Hatchery Reform Policy, which mandated that Washington Department of Fish and Wildlife reform its hatchery operations to comply with HSRG recommendations. As a result, Washington Department of Fish and Wildlife began a series of hatchery reform and monitoring actions oriented around LCR fall Chinook salmon, including the installation and operation of river-spanning weirs. The first weir was installed on the Grays River in 2008, followed by four weirs that were operational by the fall of 2011, and an additional weir that was installed in 2015. These projects have three objectives: (1) to complement existing adult salmonid monitoring efforts, (2) to promote recovery of fall Chinook salmon by controlling the proportion of hatchery-origin spawners (pHOS) on the spawning grounds, and (3) to assist collection of hatchery broodstock. This report focuses on the effectiveness at meeting objective two for weirs operated on the Grays River for the fall of 2008-2016, the Elochoman River for the fall of 2009- 2017, the Green River for the fall of 2010-2017, the Coweeman and Washougal rivers in the fall of 2011-2017, and the lower Kalama for 2015-2017."--From executive summary.

Download or read book Der Trost in Jesu written by and published by . This book was released on 1840 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tucannon River Spring Chinook Salmon Hatchery Evaluation Program Annual Report written by and published by . This book was released on 2006 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Influencing the Return of Fall Chinook Salmon Oncorhynchus Tshawytscha to Spring Creek Hatchery written by Charles O. Junge and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spawning Distribution of Fall Chinook Salmon in the Snake River written by and published by . This book was released on 1999 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1998 data was collected on the spawning distribution of the first adult fall chinook salmon to return from releases of yearling hatchery fish upriver of Lower Granite Dam. Yearling fish were released at three locations with the intent of distributing spawning throughout the existing habitat. The project was designed to use radio-telemetry to determine if the use of multiple release sites resulted in widespread spawning.

Download or read book Adult Chinook Salmon Abundance Monitoring in the Secesh River and Lake Creek Idaho 2000 Annual Report written by and published by . This book was released on 2001 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater time-lapse video technology has been used to monitor adult spring and summer chinook salmon (Oncorhynchus tshawytscha) escapement into the Secesh River and Lake Creek, Idaho, since 1998. Underwater time-lapse videography is a passive methodology that does not trap or handle this Endangered Species Act listed species. Secesh River chinook salmon represent a wild spawning aggregate that has not been directly supplemented with hatchery fish. The Secesh River is also a control population under the Idaho Salmon Supplementation study. This project has demonstrated the successful application of underwater video adult salmon abundance monitoring technology in Lake Creek in 1998 and 1999. Emphasis of the project in 2000 was to determine if the temporary fish counting station could be installed early enough to successfully estimate adult spring and summer chinook salmon abundance in the Secesh River (a larger stream). Snow pack in the drainage was 93% of the average during the winter of 1999/2000, providing an opportunity to test the temporary count station structure. The temporary fish counting station was not the appropriate technology to determine adult salmon spawner abundance in the Secesh River. Due to its temporary nature it could not be installed early enough, due to high stream discharge, to capture the first upstream migrating salmon. A more permanent structure used with underwater video, or other technology needs to be utilized for accurate salmon escapement monitoring in the Secesh River. A minimum of 813 adult chinook salmon spawners migrated upstream past the Secesh River fish counting station to spawning areas in the Secesh River drainage. Of these fish, more than 324 migrated upstream into Lake Creek. The first upstream migrating adult chinook salmon passed the Secesh River and Lake Creek sites prior to operation of the fish counting stations on June 22. This was 17 and 19 days earlier than the first fish arrival at Lake Creek in 1998 and 1999 respectively. Peak net upstream adult movement at the Secesh River site occurred June 28 and at the Lake Creek site on June 27. Peak of total movement was August 16 at Secesh River and August 7 at Lake Creek. The last fish passed through the Lake Creek fish counting station on August 31 and on September 8 at the Secesh River site. Migrating salmon in the Secesh River and Lake Creek exhibited two behaviorally distinct segments of fish movement. The first segment of movement was characterized, mainly, by upstream movement only. The second segment consisted of upstream and downstream movement with very little net upstream movement. The fish counting stations did not impede salmon movements, nor was spawning displaced downstream. Fish moved freely upstream and downstream through the fish counting structures. Fish movement was greatest between the period of 5:00 p.m. and 4:00 a.m. There appeared to be a segment of ''nomadic'' males that moved into and out of the spawning area, apparently seeking other mates to spawn with. The downstream movement of salmon allowed by this fish counting station design may be an important factor affecting reproductive success as male salmon seek other females to spawn with. Traditional weirs operated for broodstock collection do not allow for downstream movement of adults. This methodology has the potential to provide more consistent and accurate salmon spawner abundance information than single-pass and multiple-pass spawning ground surveys. Accurate adult abundance would allow managers to determine if recovery actions were benefiting these salmon spawning aggregates and if recovery goals were being met.

Download or read book Migratory Behavior Run Timing and Distribution of Radio tagged Adult Spring Chinook Salmon in the Willamette River 2011 written by M. A. Jepson and published by . This book was released on 2012 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objectives of this study were to determine the basic behavior, distribution, and migration success of adult spring Chinook salmon through the main stem Willamette River and to evaluate their exposure to potentially high water temperatures that may contribute to prespawn mortality. From 2 May through 8 July 2011, we intragastrically radio-tagged 150 Chinook salmon at Willamette Falls Dam and released them back into the fishway upstream from the trap. Almost all (97%) radio-tagged salmon also received an archival temperature logger. An additional 100 salmon were tagged with archival temperature loggers only. Run timing of the run-at-large and the radio-tagged sample was relatively late in 2011 compared to the ten year average and the late timing was associated with high flow and cool temperatures in 2011."--From executive summary (page iii).

Download or read book India s Part in the Third Year of War written by and published by . This book was released on 1950* with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Relationship Between Instream Flow Adult Immigration and Spawning Habitat Availability for Fall run Chinook Salmon in the Upper San Joaquin River California Final Report written by and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Escapement Monitoring of Adult Chinook Salmon in the Secesh River and Lake Creek Idaho 1999 Annual Report written by and published by . This book was released on 2001 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater time-lapse video technology was used to monitor adult spring and summer chinook salmon abundance in spawning areas in Lake Creek and the Secesh River, Idaho, in 1999. This technique is a passive methodology that does not trap or handle this Endangered Species Act listed species. This was the third year of testing the remote application of this methodology in the Secesh River drainage. Secesh River chinook salmon represent a wild salmon spawning aggregate that has not been directly supplemented with hatchery fish. Adult chinook salmon spawner abundance was estimated in Lake Creek with the remote time-lapse video application. Adult spawner escapement into Lake Creek in 1999 was 67 salmon. Significant upstream and downstream spawner movement affected the ability to determine the number of fish that contributed to the spawning population. The first passage on Lake Creek was recorded on July 11, two days after installation of the fish counting station. Peak net upstream adult movement occurred at the Lake Creek site on July 20, peak of total movement activity was August 19 with the last fish observed on August 26. A minimum of 133 adult chinook salmon migrated upstream past the Secesh River fish counting station to spawning areas in the Secesh River drainage. The first upstream migrating adult chinook salmon passed the Secesh River site prior to the July 15 installation of the fish counting station. Peak net upstream adult movement at the Secesh River site occurred July 19, peak of total movement was August 15, 17 and 18 and the last fish passed on September 10. Migrating salmon in the Secesh River and Lake Creek exhibited two behaviorally distinct segments of fish movement. Mainly upstream only, movement characterized the first segment. The second segment consisted of upstream and downstream movement with very little net upstream movement. Estimated abundance was compared to single and multiple-pass redd count surveys within the drainage. There were differences between the two methodologies. The fish counting stations did not impede salmon movements, nor was spawning displaced downstream. Fish moved freely upstream and downstream through the fish counting structures. Fish movement was greatest between the period of 10:00 p. m. and 4:00 a. m. There appeared to be a segment of ''nomadic'' males that moved into and out of the spawning area, apparently seeking other mates to spawn with. This methodology has the potential to provide more consistent and accurate salmon spawner abundance information than single-pass and multiple-pass spawning ground surveys. Accurate adult escapement information would allow managers to determine if recovery actions benefited listed chinook salmon in tributary streams.

Download or read book IPC and LSRCP Monitoring and Evaluation Programs in the State of Idaho written by Matthew J. Belnap and published by . This book was released on 2019 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Section 1] This annual report provides a finalized summary of brood year 2010 (BY10) Chinook Salmon Oncorhynchus tshawytscha released from Lower Snake River Compensation Plan (LSRCP) and Idaho Power Company (IPC) hatcheries operated by the Idaho Department of Fish and Game (IDFG). Idaho-LSRCP (McCall [MFH], Clearwater [CFH], and Sawtooth [SFH]) and IPC (Rapid River [RRFH] and Pahsimeroi [PFH]) fish hatcheries collected 13,344,363 green eggs and released 9,317,508 BY10 Chinook Salmon that included 302,782 released as parr in 2011 and 9,014,726 released as smolts in 2012. All facilities met their production targets for green eggs taken and met or were within 5% smolt release targets except for Sawtooth and Clearwater. Generally, facilities faced minor fish health issues, the most prevalent being bacterial kidney disease (BKD) which resulted in the culling of eggs from production. Fish health culls at McCall Fish Hatchery and Rapid River Fish Hatchery were both higher than the previous ten-year average. None of the fish health issues affecting BY10 Chinook resulted in significant losses to production. Representative groups of juveniles from each facility were PIT tagged to estimate survival from release to Lower Granite Dam (LGD). Estimated juvenile survival rates during the 2012 migration ranged from 29.6% at the Yankee Fork (2nd Bridge) to 75.5% at Clear Creek. The average juvenile survival across all groups was 59.4%, and with the exception of CFH releases into the SF Clearwater River drainage (Red and Crooked rivers), survival rates were higher than the five-year average for all facilities. BY10 adult Chinook returned from 2013 through 2015. Adult returns are summarized by age and release site for each hatchery and include estimates of harvest (ocean, downriver, and terminal), strays, below-weir dropouts, and escapement. Hatchery-origin Chinook Salmon released from LSRCP and IPC hatcheries in Idaho were harvested in tribal and non-tribal fisheries in the Columbia and Snake rivers downstream of LGD and in mainstem and tributary fisheries upstream of LGD. The number of each hatchery’s brood-specific adult return that was harvested below LGD ranged from 492 fish for Pahsimeroi Fish Hatchery (PFH) to 5,475 for Rapid River Fish Hatchery (RRFH), with a total of 11,725 fish for all BY10 Chinook. The number of each hatchery’s return to LGD that was harvested above LGD ranged from 88 fish for PFH to 16,053 for RRFH. The number of strays below LGD ranged from 0 to 180, and the number of strays above LGD ranged from 0 to 589. Most of the stray recoveries for Clearwater Fish Hatchery were collected at Dworshak and Kooskia hatcheries, and the strays from Sawtooth Fish Hatchery (SFH) were fish released at the Yankee Fork River that strayed back to the SFH rack. Smolt-to-adult survival (SAS) rates from these returns ranged from 0.251% for Pahsimeroi Fish Hatchery (PFH) to 0.892% for Rapid River Fish Hatchery (RRFH). Smolt-to-adult returns (SAR) above LGD ranged from 0.203% for PFH to 0.711% for RRFH. SARs and SASs were below the recent five-year averages at all facilities. Progeny-to-parent ratios (PPR) to the project area ranged from 2.77 at Clearwater Fish Hatchery (CFH) to 7.53 at RRFH.

Download or read book IPC and LSRCP Monitoring and Evaluation Programs in the State of Idaho written by Matthew J. Belnap and published by . This book was released on 2021 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Chapter 2] This annual report provides a summary of brood year 2012 (BY2012) Chinook Salmon Oncorhynchus tshawytscha released from Lower Snake River Compensation Plan (LSRCP) and Idaho Power Company (IPC) hatcheries operated by the Idaho Department of Fish and Game. Idaho-LSRCP (McCall [MFH], Clearwater [CFH], and Sawtooth [SFH]) and IPC (Rapid River [RRFH] and Pahsimeroi [PFH]) fish hatcheries collected 11,553,944 green eggs in 2012 and released 9,934,299 smolts in 2014. All facilities met their production targets for green egg take. Facilities faced minor fish health issues, the most prevalent being bacterial kidney disease (BKD), which resulted in the culling of low numbers of eggs from production. None of the fish health issues affecting BY2012 Chinook Salmon resulted in significant losses to production. Representative groups of juveniles from each facility were PIT tagged to estimate survival from release to Lower Granite Dam (LGD). Estimated juvenile survival rates during the 2014 migration ranged from 39% at Yankee Fork to 80% at Pahsimeroi. The weighted average juvenile survival to LGD across all groups was 72%. BY2012 adult Chinook Salmon returned from 2015 through 2017. Adult returns are summarized by age and release site for each hatchery and include estimates of harvest (ocean, downriver, and terminal), below-weir dropouts, and escapement. Hatchery-origin Chinook Salmon released from LSRCP and IPC hatcheries in Idaho were harvested in tribal and non-tribal fisheries in the Columbia and Snake rivers downstream of LGD and in mainstem and tributary fisheries upstream of LGD. The number of each hatchery’s brood year-specific adult return that was harvested below LGD ranged from 376 fish for PFH to 2,435 for RRFH, with a total of 6,833 fish for all BY2012 Chinook Salmon. The number of each hatchery’s return to LGD that was harvested above LGD ranged from 137 fish for PFH to 8,594 for RRFH, with a total of 15,246 for all BY2012 Chinook Salmon. Smolt-to-adult survival (SAS) rates ranged from 0.14% for PFH to 1.01% for MFH. Smoltto-adult returns (SAR) above LGD ranged from 0.09% for PFH to 0.67% for RRFH. SARs were higher than the recent five-year averages at McCall, Sawtooth, and Clearwater. SARs were lower than the recent five-year averages at Pahsimeroi and Rapid River. SASs were higher than the recent five-year averages at Clearwater, Sawtooth, and Rapid River. SASs were lower than the recent five-year averages at Pahsimeroi and McCall. Progeny-to-parent ratios (PPR) to the project area ranged from 1.14 at PFH to 8.51 at RRFH.