Download or read book Factors Influencing the Survival of Juvenile Steelhead Rainbow Trout Salmo Gairdneri Gairdneri in the Ventura River California written by Mark R. Moore and published by . This book was released on 1980 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Matilija Dam Ecosystem Resoration Feasibility Study written by and published by . This book was released on 2004 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ox Mountain Sanitary Landfill Apanolio Canyon Expansion Site San Mateo County written by and published by . This book was released on 1989 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Southern California Academy of Sciences written by Southern California Academy of Sciences and published by . This book was released on 1993 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Racial Identification of Juvenile Summer and Winter Steelhead and Resident Rainbow Trout Salmo Gairdneri Richardson written by Brian D. Winter and published by . This book was released on 1987 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Botanical Resources at Emma Wood State Beach and the Ventura River Estuary California written by and published by . This book was released on 1990 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endangered Plant Communities of Southern California written by Southern California Botanists. Symposium and published by . This book was released on 1990 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Matilija Dam Removal written by and published by . This book was released on 2000 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Life Histories of the Steelhead Rainbow Trout Salmo Gairdneri Gairdneri and Silver Salmon Oncorhynchus Kisutch with Special Reference to Waddell Creek California and Recommendations Regarding Their Management written by Leo Shapovalov and published by . This book was released on 1954 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Survival of Juvenile Hatchery and Wild Steelhead Trout Salmo Gairdneri in Streams written by Reginald Ruben Reisenbichler and published by . This book was released on 1976 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relative growth and survival of offspring from matings of hatchery and wild Deschutes River (Oregon) summer steelhead trout, Salmo gairdneri, were monitored to determine if hatchery fish differ genetically from wild fish in traits which can affect the stock-recruitment relationship of wild populations. Four natural streams and a hatchery pond were each stocked with genetically marked eyed-eggs or unfed fry from each of three matings: hatchery x hatchery (HH), hatchery x wild (HW) and wild x wild (WW). In the hatchery pond, HH fish exhibited the greatest survival and were larger than fish in the other groups. WW fish had the greatest survival and HW fish were largest in streams where there were significant differences in survival or length. The hatchery fish were genetically different from wild fish and can have an adverse effect on the stock-recruitment relationship of the wild population when they interbreed with wild fish. Hatchery procedures can be modified to lessen this effect by minimizing the genetic differences between hatchery and wild fish.
Download or read book Racial Analysis of Juvenile Summer and Winter Steelhead and Resident Rainbow Trout Salmo Gairdneri Richardson from Three Northern California Watersheds written by Brian D. Winter and published by . This book was released on 1983 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feeding Aggression and Growth in Juvenile Steelhead Trout Salmo Gairdneri microform written by Abbott, Jeremy C and published by National Library of Canada. This book was released on 1985 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature Genetic and Ration Effects on Juvenile Rainbow Trout Oncorhynchus Mykiss Bioenergetics written by Christopher Alexander Myrick and published by . This book was released on 1998 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Temperature Ration and Size on Growth of Juvenile Steelhead Trout Salmo Gairdneri written by Wayne A. Wurtsbaugh and published by . This book was released on 1973 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of temperature, temperature fluctuation, and fish size on the growth of juvenile steelhead trout (Salmo gairdneri) were studied in experiments which lasted 10 to 25 days. Groups of fish were fed at ration levels varying from near-starvation to repletion. Decelerating, curvilinear relationships between rates of food consumption and growth were defined in most of the experiments. At ration levels near maintenance, temperatures elevated 3 and 6 C above the seasonal ambient temperatures decreased the growth of the trout. As feeding rate increased, the detrimental effect of temperature on growth was ameliorated. At repletion feeding levels, elevation of temperature up to approximately 17 C increased trout growth rates by increasing the maximum food consumption rates of the fish. With temperature increase from 6.9 to 22.5 C the maintenance rations of the trout increased from 2.2 to 7.4% body weight/day. Large diel temperature fluctuations of 4 and 8 C did not increase growth rates and in some cases decreased growth rates to levels below those of fish kept at constant temperatures. Increase of fish size from 0.58 to 3.36 g decreased the maintenance rations (per gram of tissue) of the trout. This decrease was attributed to decreases in metabolic rate that are associated with increases in fish size. As a consequence of this size-dependent change in metabolic rate, large fish grew faster than small fish at low ration levels. However, at ration levels greater than 9%/day, small fish grew faster than large fish. At the highest ration levels fed (9- 12%/day) gross food conversion efficiency of the large fish began to decline, while efficiencies of small fish continued to increase with increases in ration size. Periodic sampling of steelhead trout in a small coastal stream indicated that growth rates of these wild trout ranged from -0.18 to 1.6%/day. Food consumption rates of the wild trout were estimated to range from 2.0 to 7.6%/day; considerably less than the maximum consumption rates of trout kept in the laboratory. At these food consumption rates it is estimated that increases of stream temperature above the normal seasonal temperatures would decrease the growth rates of wild steelhead trout.
Download or read book Feeding Aggression and Growth in Juvenile Steelhead Trout Salmo Gairdneri written by Abbott, Jeremy C and published by . This book was released on 1991 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors affecting juvenile steelhead survival in streams tributary to Minnesota waters of Lake Superior written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
