Download or read book Kootenai River White Sturgeon Investigations written by Patrick E. Marcuson and published by . This book was released on 1994 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kootenai River White Sturgeon Investigations Annual Report 1993 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: US Army Corps of Engineers in concordance with Bonneville Power Administration provided a release of 324.3 m[sup 3]/s of impounded water from Lake Koocanusa, Montana from June 2 to June 16, 1993. Nineteen adult white sturgeon equipped with combinations of radio and sonic transmitters were monitored from mid-April to mid-July 1993. Nine females and one male remained in the Kootenai River near the British Columbia/Idaho border and/or Kootenay Lake, British Columbia. Eight sturgeon with transmitters formed the aggregate of unknown numbers of fish in the staging area. The monitored fish were all judged late vitellogenic and were used to characterize what was assumed reproductive behavior of white sturgeon in the Kootenai River. Four late vitellogenic females upriver with the lowland spring runoff (May 11), lingered around the ''staging area'' May 11--24, then retreated downriver May 21--24. Two fish retreated all the way to Kootenay Lake, British Columbia; the other two re-advanced upriver May 27--30 concurrent with the initiation of the augmented discharge on May 28. By June 4, the remaining females began moving downriver. Male sturgeon tended to move upriver seven days earlier than the females. They arrived in staging waters about May 11. On May 21, three male sturgeon demonstrated a slight downriver run the same time as did the females. The maximum downriver travel was 14.2 km. All four of the monitored males returned upriver just prior to and during the augmented flow period. The flow test did not produce any known recruitment to the diminishing white sturgeon population.
Download or read book Kootenai River White Sturgeon Investigations 1993 Annual Report written by and published by . This book was released on 1994 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. Army Corps of Engineers in concordance with Bonneville Power Administration provided a release of 324.3 m3/s (400,000 acre feet) of impounded water from Lake Koocanusa, Montana from June 2 to June 16, 1993. This release of water provided approximately 566.4 m3/s (20,000 cfs) discharge in the Kootenai River at Bonners Ferry, Idaho. Nineteen adult white sturgeon equipped with combinations of radio and sonic transmitters were monitored from mid-April to mid-July, 1993. Nine females and one male remained in the Kootenai River near the British Columbia/Idaho border and/or Kootenay Lake, British Columbia. One female was captured by the crew from the Kootenai Hatchery, operated by the Kootenai Tribe of Idaho, delivered to the hatchery, tagged, and released seven days later. She retreated to Kootenay Lake immediately after release. Eight sturgeon with transmitters formed the aggregate of unknown numbers of fish in the staging area. The monitored fish were all judged late vitellogenic and were used to characterize what was assumed reproductive behavior of white sturgeon in the Kootenai River. Four late vitellogenic females moved upriver with the lowland spring runoff (May 11), lingered around the ''staging area'' May 11-24, then retreated downriver May 21-24. Two fish retreated all the way to Kootenay Lake, British Columbia; the other two re-advanced upriver May 27-30 concurrent with the initiation of the augmented discharge on May 28. None of the monitored fish were detected beyond the U.S. Highway 95 bridge. By June 4, the remaining females began moving downriver. Male sturgeon tended to move upriver seven days earlier than the females. They arrived in staging waters about May 11. On May 21, three male sturgeon demonstrated a slight downriver run the same time as did the females. The maximum downriver travel was 14.2 km. All four of the monitored males returned upriver just prior to and during the augmented flow period. Crews fished a combined 14,714 hours with three types of gear designed to sample white sturgeon eggs and larvae. Three eggs (one fertilized, one dead, and one unfertilized) diagnosed as white sturgeon were collected in the vicinity of the highway bridge at Bonners Ferry. All were collected within a few days after the retreat of monitored females. The presence of unfertilized or dead eggs can not verify spawning. Thus the catch rate for one sturgeon egg from all sampling gear was 0.00002 eggs/h. The flow test did not produce any known recruitment to the diminishing white sturgeon population.
Download or read book Columbia River System Operation Review Main report written by and published by . This book was released on 1995 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kootenai National Forest N F Garver Project written by and published by . This book was released on 2003 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Columbia River System Operation Review SOR written by and published by . This book was released on 1996 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development Report written by United States. Bonneville Power Administration and published by . This book was released on 1993 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kootenai River White Sturgeon Studies Annual Report Fy 1993 written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report evaluates natural spawning of white sturgeon in the Kootenai River before, during and after the 1993 augmented discharge period. To determine how altering the operation of Libby Dam may improve conditions for natural spawning of white sturgeon in the Kootenai River, discharge from Libby Dam (with no power peaking or load following) was increased to produce 20 kcfs ([plus-minus] 2 kcfs) discharge at Bonners Ferry, Idaho, for a 14 day period June 2--16. Objectives of this research were to determine if white sturgeon spawned in the Kootenai River during 1993; and collect baseline biological data including timing, location, and habitat requirements of white sturgeon spawning in the Kootenai River in order to formulate and implement future flow regimes as effective recovery measures for white sturgeon. While sampling is not expected to collect a majority of white sturgeon eggs or larvae produced in a river, the fact that over 41,000 hours of sampling (combined gear) collected only 3 white sturgeon eggs and no larvae suggests that spawning conditions during 1993 were inadequate to benefit this population.
Download or read book Kootenai River White Sturgeon Investigation written by Patrick E. Marcuson and published by . This book was released on 1995 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kootenai River White Sturgeon Investigations written by Vaughn L. Paragamian and published by . This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Our Living Resources written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report provides information on distribution, abundance, and health of birds, mammals, reptiles and amphibians, fishes, invertebrates, plants, terrestrial ecosystems, aquatic ecosystems, coastal and marine ecosystems, riparian ecosystems, the Great Plains, Interior West, Alaska, and Hawaii. It also discusses special issues: global climate change, human influences, non-native species, and habitat assessments.
Download or read book Biological Opinion written by U.S. Fish and Wildlife Service. Region 1 and published by . This book was released on 2000 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recommendations to Amend the Resident Fish and Wildlife Sections of the Columbia River Basin Fish and Wildlife Program written by and published by . This book was released on 1995 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Kootenai National Forest N F Skyline Ridge written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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