Download or read book Development of an Effective Transport Media for Juvenile Spring Chinook Salmon to Mitigate Stress and Improve Smolt Survival During Columbia River Fish Hauling Operations 1985 Final Report written by and published by . This book was released on 1985 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected transport media consisting of mineral salt additions (Na, Cl−, Ca/sup + +/, PO4−3, HCO3−, and Mg/sup + +/), mineral salts plus tranquilizing concentrations of tricaine methane sulfonate (MS-222), or MS-222 alone were tested for their ability to mitigate stress and increase smolt survival during single and mixed species hauling of Columbia River spring chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri). Successful stress mitigation was afforded by several formulations as indicated by protection against life-threatening osmoregulatory and other physiological dysfunctions, and against immediate and delayed hauling mortality. Effects on the seawater survival and growth of smolts hauled in transport media were used as the overall criterion of success. Of the fourteen chemical formulations tested, 10 ppM MS-222 emerged as top-rated in terms of ability to mitigate physiological stress during single and mixed species transport of juvenile spring chinook salmon at hauling densities of 0.5 or 1.0 lb/gallon. Immediate and delayed mortalities from hauling stress were also reduced, but benefits to early marine growth and survival were limited to about the first month in seawater. The two physical factors tested (reduced light intensity and water temperature) were generally less effective than mineral salt additions in mitigating hauling stress, but the degree of protection afforded by reduced light intensity was nevertheless judged to be physiologically beneficial. 36 refs., 1 fig., 19 tabs.

Download or read book Development of an Effective Transport Media for Juvenile Spring Chinook Salmon to Mitigate Stress and Improve Smolt Survival During Columbia River Fish Hauling Operations written by United States. Bonneville Power Administration. Division of Fish and Wildlife and published by . This book was released on 1985 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of an Effective Transport Media for Juvenile Spring Chinook Salmon to Mitigate Stress and Improve Smolt Survival During Columbia River Fish Hauling Operations written by Gary A. Wedemeyer and published by . This book was released on 1985 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Columbia River Basin Salmon Recovery Efforts written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1993 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Stress and Health in Aquaculture written by Kenneth A. Lockridge and published by Cambridge University Press. This book was released on 1981 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative 1997 review of the effects of stress on fish in polluted water, research labs and fish farms.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1985 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cowlitz Fish Biologist Annual Report for written by and published by . This book was released on 1999 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1985 with total page 496 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 1985 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transportation of Juvenile Salmonids on the Columbia River 2006 written by Douglas M. Marsh and published by . This book was released on 2007 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Smolt Transportation Feasibility on the Mid Columbia River written by Eicher Associates and published by . This book was released on 1981 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transportation of oceanbound fingerling salmonids around intermediate dams to the river below Bonneville Dam has been developed on the Snake and Columbia Rivers to reduce losses due to turbine passage, predation, nitrogen supersaturation and reservoir delays. State and federal agencies of the Pacific Northwest have conducted transportation operations for over 20 years using trucks, barges and fixed-wing aircraft. Truck transportation has the longest background, moves fish rapidly, and is the most economical technique. Barging transports fish safely and economically, particularly with full loads. Aircraft transportation is too expensive, weather dependent and carries small loads. Railroad and pipeline systems are not feasible for a variety of reasons. ... Survival of transported wild and hatchery-produced salmonids is dependent upon their good health during collection, transportation and release. Low flows reduce the number of fish available to be transported, as well as their health, possibly because of low tributary flows and high temperatures. Viable transport options are trucking, barging and combinations of truck and barging and spill. Proper transport management, healthy fish and full functioning equipment are essential for successful juvenile salmonid transport. About half as many pounds of juvenile fish would be subject to transport on the Mid-Columbia as on the Snake; however, if transport is planned, provision should be made for increases which appear possible. Trucking is the recommended method with a modular system of barging the second choice.

Download or read book Progress Report Spring Chinock Salmon Transplantation Study 1955 61 written by Paul D. Zimmer and published by . This book was released on 1963 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grande Ronde Endemic Spring Chinook Salmon Supplementation Project Lostine River Operations and Maintenance 2003 Smolt Acclimation and Adult Return Report written by and published by . This book was released on 2009 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nez Perce Tribe (NPT), through funding provided by the Bonneville Power Administration (BPA), has implemented a Chinook salmon supplementation program (250,000 smolts) on the Lostine River, a tributary to the Grande Ronde River of Oregon. The Grande Ronde Endemic Spring Chinook Salmon Supplementation project, which involves supplementation of the Upper Grande Ronde River and Catherine Creek in addition to the Lostine River, was established to prevent extirpation and increase the number of threatened Snake River spring/summer Chinook salmon (Oncorhynchus tshawytscha) returning to the Grande Ronde River. This report covers the seventh season (1997-2003) of adult Chinook salmon broodstock collection in the Lostine River and the fifth season (1999-2003) of acclimating the resultant progeny. Production of Lostine River spring Chinook salmon smolts currently occurs at Lookingglass Fish Hatchery (LGH). The Lostine River supplementation program utilizes two strategies to obtain egg source for production of smolts for supplementation: captive broodstock and conventional broodstock. The captive broodstock strategy involves (1) capture of natural juvenile spring Chinook salmon smolts from the Lostine River, (2) rearing those to adult and spawning them, and (3) rearing the resultant progeny for eventual acclimation and release back into the Lostine River. The conventional broodstock strategy involves (1) capture of natural and hatchery origin adults returning to the Lostine River, (2) holding those adults and spawning them, and (3) rearing the resultant progeny for acclimation and release back into the Lostine River. This report focuses on (1) the trapping and collection of adult spring Chinook salmon that return to the Lostine River, which provides the broodstock source for the conventional strategy and (2) the acclimation and release of juvenile spring Chinook salmon produced from the captive broodstock and conventional broodstock strategies. In 2003, acclimation of Lostine River spring Chinook salmon smolts occurred from March 3, 2003 through to April 14, 2003 and a total of 242,776 smolts were acclimated and released. These smolts were produced from the brood year (BY) 2001 egg source and included captive broodstock (141,860) and conventional broodstock (100,916) origin smolts that were all progeny of Lostine River spring Chinook salmon. Operation of the Lostine River adult monitoring and collection facility in 2003 began April 30th, the first Chinook was captured on May 16, 2003 and the last Chinook was captured on September 21, 2003. The weir and trap were removed on October 1, 2003. A total of 464 adult Chinook, including jacks, were captured during the season. The composition of the run included 239 natural origin fish and 225 hatchery supplementation fish. There were no identified 'stray' hatchery fish from other programs trapped. Of the fish captured, 45 natural and 4 hatchery supplementation adults were retained for broodstock and transported to LGH for holding and spawning, 366 adult Chinook were passed or transported above the weir to spawn naturally, and 49 hatchery origin adult jack Chinook were transported and outplanted in the Wallowa River and Bear Creek to spawn in underseeded habitat. Of the 49 adults retained for broodstock at Lookingglass Hatchery, 21 natural females and no hatchery origin females were represented in spawning. These females produced a total of 106,609 eggs at fertilization. Eye-up was 95.50% which yielded a total of 101,811 conventional program eyed eggs. The fecundity averaged 5,077 eggs per female. These eggs were incubated and at Lookingglass Hatchery until eyed stage. At eye they were transferred to Oxbow Hatchery where they were reared to the fingerling state at which time they were transported back to LGH until they were smolts in the spring of 2005. Captive brood program eggs/fish will be added to the conventional program eggs to make up the entire juvenile release for the Lostine River program in 2005.

Download or read book Efficacy of Feed Deprivation During Juvenile Rearing to Reduce Precocious Maturation of Age 1 Male Spring Chinook Salmon Smolts written by Peter F. Galbreath (Fisheries biologist) and published by . This book was released on 2020 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: High feeding and growth, relative to wild fish, can induce substantial proportions of hatchery reared male spring Chinook Salmon juveniles to mature precociously as age-2 minijacks. Released as smolts, these fish do not migrate to the ocean for rearing, and thus do not reach the adult age and size at which they can contribute to harvest mitigation fisheries and natural population supplementation. Initiation of maturation is thought to occur during a critical time period approximately one year prior to spawning. We performed a study with broodyear 2018 juveniles involving total feed deprivation over two different time periods (Early - August 8 through September 11, 2019; and Late - September 11 through October 24, 2019), to determine whether the rate of precocious maturation of the hatchery reared juveniles could be significantly reduced, while also allowing time post-treatment for the fish to achieve an adequate final smolt size through compensatory growth. At termination of the study in July 2020, the probabilities of precocious maturation of male smolts as minijacks in the Early and Late treatment tanks, as determined by logistic regression analyses, averaged 24.7% and 24.2%, respectively, which were significantly lower than the 38.1% rate for continuously fed fish in the Control tanks. Because the fish had to be pooled from their replicate tanks into a single subdivided concrete raceway for overwintering, fish from each tank were stocked into a particular section of the raceway after receiving an identifying adipose and/or pelvic fin clip combination. Unfortunately, there was some level of misidentification of fish to their original rearing tank, due primarily to regrowth of clipped pelvic fins. Errors in identification were such that the actual reduction in minijack rate was likely even larger, in particular for the Early treatment fish, for which the actual minijack rate was likely closer to 20%. In both May and July 2020, the treatment fish were similar in size to Control fish. Further study of the effects of timing and duration of the food deprivation period on precocious maturation rate and growth is recommended in order to develop a protocol for hatchery rearing of spring Chinook Salmon smolts for consideration by regional fisheries and hatchery managers.

Download or read book Migratory Characteristics of Juvenile Spring Chinook Salmon in the Willamette River written by and published by . This book was released on 1994 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to examine in detail the migration of juvenile spring chinook salmon (Oncorhynchus tshawytscha) in the Willamette River, Oregon. The authors wanted to determine characteristics of seaward migration of spring chinook smolts in relation to the oxygen supplementation practices at the Oregon Department of Fish and Wildlife (ODFW) Willamette Hatchery and use this information to strengthen the design of the oxygen supplementation project. There is little information available on the effects of oxygen supplementation at hatcheries on the migratory characteristics of juvenile salmon. Such information is required to assess the use of oxygen supplementation as a means of improving hatchery production, its effect on imprinting of juveniles, and finally the return of adults. In the event that oxygen supplementation provides for improved production and survival of juvenile chinook salmon at Willamette Hatchery, background information on the migration characteristics of these fish will be required to effectively utilize the increased production within the goals of the Willamette Fish Management Plan. Furthermore this technology may be instrumental in the goal of doubling the runs of spring Chinook salmon in the Columbia River. While evaluation of success is dependent on evaluation of the return of adults with coded wire tags, examination of the migratory characteristics of hatchery smolts may prove to be equally informative. Through this research it is possible to determine the rate at which individuals from various oxygenation treatment groups leave the Willamette River system, a factor which may be strongly related to adult return rate.