Download or read book Evaluation of Changes in Size and Number of Rainbow Trout Fingerlings Stocked in Sheridan Lake Pactola Reservoir written by Richard C. Ford and published by . This book was released on 1983 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Federal Aid Research Report written by and published by . This book was released on with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Aid in Fish and Wildlife Restoration written by and published by . This book was released on 1977 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Aid in Fish and Wildlife Restoration written by Wildlife Management Institute and published by . This book was released on 1976 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Fall Stocked Rainbow Trout Fingerlings in Southwestern Minnesota Streams written by William Thorn and published by . This book was released on 1984 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Dispersal of Recently Stocked Eagle Lake Rainbow Trout in the Lake Davis Watershed written by Daniel Lewis Worth and published by . This book was released on 2010 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many reasons why resource managers move plants and animals from one location to another. Understanding how the organisms disperse after relocation is an important aspect to any relocation action. This study was done to evaluate the post-stocking movement of Eagle Lake rainbow trout (Oncorhynchus mykiss aquilarum). This trout is endemic to Eagle Lake, California and has many characteristics that no other rainbow trout have. The unique traits of these fish are thought to be a result of the complete isolation that these fish historically enjoyed in the terminal Eagle Lake watershed. To study the post-stocking behavior of this strain of trout, eggs and sperm were collected from wild fish spawning at Eagle Lake, California. The offspring were raised in a hatchery for about one year and then transported to the nearby Lake Davis watershed, which had recently been treated with a piscicide by the California Department of Fish and Game in an attempt to rid the lake of northern pike (Esox lucius). Eight hundred of these wild strain Eagle Lake rainbow trout were tagged and stocked into Cow, Big Grizzly, Freeman, and Old House creeks, which are the four main tributaries of Lake Davis. The tags used were Floy T-bar anchor tags that each had a unique number used to identify individual fish. The location and size of each stocked fish were recorded at the time of stocking. After the fish were stocked in May of 2008, the tributaries were sampled for fish approximately once per month, ending in September of 2008. Each time a tagged fish was captured, the GPS location and size of the fish were recorded. These data were used to evaluate post-stocking growth and movement patterns of Eagle Lake rainbow trout in the Lake Davis Watershed. Additionally, the effect that the tags and electrofishing had on the condition of fish was evaluated. Rainbow trout are often observed moving downstream after being stocked into a stream or river, but other types of trout have been observed to move upstream following stocking. This study evaluated whether the unique Eagle Lake strain of rainbow trout moved downstream like many other strains of rainbow trout after stocking. The average post-stocking movement of fish in three of the creeks was 365 meters in the downstream direction. The fish that were stocked in the fourth creek moved an average of 178 meters upstream, but it is thought that this was caused by a barrier to downstream movement. On average, the Eagle Lake rainbow trout in this study moved in a downstream direction shortly after being stocked. A few fish moved long distances, up to 3000 meters, but the majority moved slightly downstream. The downstream movement appeared to be short-lived because the fish remained relatively stationary following the first sampling event, which was 27 day after stocking. It is often postulated that trout populations include static individuals and mobile individuals, and that mobile trout are presumably those that are unable to establish territories, and static trout are those that can establish territories. Additionally, after trout are stocked it is often noted that some individuals stay near the stocking location, and others move great distances away from the stocking location. Because stream-dwelling salmonids compete for space in streams, some of the variation in movements may be attributed to competitive ability. To evaluate the influence that competitive interactions have on post-stocking movement, size at stocking was compared to dispersal distance. The results of this study did not indicate that relative size at stocking was related to post-stocking movement; however, design limitations may have led to the uncertainty. The creeks in this study were electrofished once a month for five straight months. The main driving force for this electrofishing effort was to monitor for pike. While conducting these pike surveys, the recently stocked trout were captured and data was collected from them. The effects of electrofishing and handling on the trout were evaluated by comparing the condition of fish that had previously been captured to fish that had been captured for the first time during each sampling event. The results of this study indicate that repeated electrofishing and handling significantly reduced the condition of the trout. This research also evaluated the effect that the Floy T-bar anchor tags had on the condition of the Eagle Lake rainbow trout. During each of the sampling periods, the condition of tagged fish was compared to the condition of non-tagged fish from the same size range. There was no significant difference in the condition of tagged versus untagged.
Download or read book Rainbow Trout Growth in Circular Tanks written by James L. Brauhn and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prediction equations correlating density of fingerling rainbow trout with growth, yield, and food use efficiency indicated that ammonia nitrogen resulting from high fish densities wes responsible for reductions in all three factors. These predictable density-dependent responses present fish-culturists with alternatives of density selection for evaluation and attainment of specific goals. In examples, fish-culturists, by manipulating density, could achieve rapid growth, produce the maximum weight possible, balance yield with cost, optimize fish quality, or combine two or more of these goals.
Download or read book Evaluation of Four Strains in Rainbow Trout Fingerling Stockings in Black Hills Reservoirs South Dakota written by Richard C. Ford and published by . This book was released on 1978 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Six Strains of Rainbow Trout Salmo Gairdneri Stocked as Fingerlings in Porcupine Reservoir Utah written by Mark Hudy and published by . This book was released on 1980 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Growth Rates of Rainbow Trout in Six Stocked Lakes Within the Rocky Area written by Larry A. Rhude and published by . This book was released on 1985 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Rainbow Trout in Koole Lake and Rainbow Lake 2004 written by April E. Behr and published by . This book was released on 2006 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The abundance of rainbow trout, Oncorhynchus mykiss, populations at Koole Lake and Rainbow Lake were estimated with two-sample mark-recapture experiments in 2004. Koole Lake and Rainbow Lake are remote lakes located in the Tanana River drainage northwest of Delta Junction and have been stocked with rainbow trout fingerlings since the 1970s. The status of the fish populations was needed to assess current stocking methods and to develop management plans and stocking strategies for both lakes to preserve and improve fishing opportunities for rainbow trout and other stocked species.
Download or read book The Relationship Between Rainbow Trout Stocking Success and Habitat Variables in Interior Alaska Lakes written by Kelly A. Mansfield and published by . This book was released on 2010 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fish are stocked for a variety of reasons, including the providence of diverse angling opportunities. Rainbow trout Oncorhynchus mykiss are the most widely stocked sport fish species in North America. In Interior Alaska, over 90 of the 137 lakes chosen for stocking are stocked with rainbow trout. To optimize fish stocking programs, managers require a better understanding of the lake characteristics associated with success in meeting program objectives, for assessment of potential lakes proposed for stocking, and to address angler inquiries. For my project, I used a model-selection process with lake morphometric and biotic data from 36 stocked lakes in interior Alaska to develop a predictive model for rainbow trout stocking success defined by pre-set mean length-at-age standards. Average stocking density, lake surface area, and shoreline development explained 46% of the variation in rainbow trout lengths. Model cross-validation, however, called into question the predictive capabilities of the model. In addition, limnological data collected from 10 lakes in 2009 identified water temperature as a correlate with rainbow trout length. This study provided an approach that can be used by managers to evaluate rainbow trout length in stocked lakes, and serves the basis for improving stocking programs while providing satisfactory fishing experiences"--Leaf iii.
Download or read book Comparison and Assessment of Relative Survival Rates to Age 1 Between Triploid All female Rainbow Trout Stocked as Fingerlings and Subcatchables in Birch Lake 2007 2008 written by April E. Behr and published by . This book was released on 2011 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Stocked Rainbow Trout Populations in Interior Alaska 2008 2010 written by April E. Behr and published by . This book was released on 2014 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the stocked rainbow trout populations, which were sampled in 31 lakes in the Tanana River and Upper Copper River drainages during 2008-2010 in order to evaluate the fish stocking program.
Download or read book Evaluation of Rainbow Trout in Lisa Lake During 2001 and Fish Population Monitoring in Stocked Waters in the Tanana River and Copper River Drainages 1999 2003 written by April E. Behr and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Different Rainbow Trout Stocking Densities in Urban Lakes in Lubbock Texas written by John A. Dennis and published by . This book was released on 1990 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Stocked Rainbow Trout Populations in Interior Alaska 2005 written by April E. Behr and published by . This book was released on 2007 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the stocked rainbow trout populations, which were sampled in 10 lakes in the Tanana River and Copper River drainages during 2005 in order to evaluate the fish stocking program.