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Quantitative Genetic Analysis Or Rate Of Embryonic Development In Pink Salmon Oncorhynchus Gorbuscha
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Book Synopsis Quantitative Genetic Analysis Or Rate of Embryonic Development in Pink Salmon (Oncorhynchus Gorbuscha) by : Kyle Peter Hebert
Download or read book Quantitative Genetic Analysis Or Rate of Embryonic Development in Pink Salmon (Oncorhynchus Gorbuscha) written by Kyle Peter Hebert and published by . This book was released on 1994 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Survival and Development of Pink Salmon (Oncorhynchus Gorbuscha) Embryos and Fry as Related to Egg Size and Quantitative Genetic Variation by : Patrick William Malecha
Download or read book Survival and Development of Pink Salmon (Oncorhynchus Gorbuscha) Embryos and Fry as Related to Egg Size and Quantitative Genetic Variation written by Patrick William Malecha and published by . This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effect of egg weight on survival and development of pink salmon (Oncorhynchus gorbuscha) embryos, alevins, and fry was analyzed; in addition, embryo survival was investigated in relation to additive genetic variation. Embryonic survival to eyeing, development time to hatch, yolk weight, somatic tissue weight, yolk use rate, somatic tissue growth rate, and the survival of first-feeding fry was recorded relative to egg weight. The analyses demonstrated significant egg weight effects on development time to hatch, yolk weight, somatic tissue weight, yolk use rate, and somatic tissue growth rate on alevins. Weight and length of post-emergent fry (17 weeks post-ponding) were also significantly affected by initial egg weight. However, egg weight did not affect survival of eyed eggs or fry. Differential family-specific survival of eyed eggs indicated the presence of significant additive genetic variation"--Leaf 3.
Book Synopsis Quantitative Genetic Analysis of a Fitness Related Life-history Character, Development Rate, in Odd- and Even-year Populations of Pink Salmon (Oncorhynchus Gorbuscha) by : Patrick Lee Goddard
Download or read book Quantitative Genetic Analysis of a Fitness Related Life-history Character, Development Rate, in Odd- and Even-year Populations of Pink Salmon (Oncorhynchus Gorbuscha) written by Patrick Lee Goddard and published by . This book was released on 1995 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variation in the Embryonic Development Rate of Odd and Even Year Pink Salmon (Oncorhynchus Gorbuscha) in Auke Creek, Alaska by : John Edward Joyce
Download or read book Genetic Variation in the Embryonic Development Rate of Odd and Even Year Pink Salmon (Oncorhynchus Gorbuscha) in Auke Creek, Alaska written by John Edward Joyce and published by . This book was released on 1986 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Technical Report PNW-GTR by :
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 1999 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Characteristics and Population Status of Anadromous Salmon in Southeast Alaska by :
Download or read book Biological Characteristics and Population Status of Anadromous Salmon in Southeast Alaska written by and published by . This book was released on 2000 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of National Research Institute of Aquaculture by :
Download or read book Bulletin of National Research Institute of Aquaculture written by and published by . This book was released on 1994 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Fisheries and Aquatic Sciences by :
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1998 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Outbreeding on Embryonic Development Timing of Pink Salmon (Oncorhynchus Gorbuscha) by : Ivan Alan Wang
Download or read book Effects of Outbreeding on Embryonic Development Timing of Pink Salmon (Oncorhynchus Gorbuscha) written by Ivan Alan Wang and published by . This book was released on 2004 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: "I studied the effects of outbreeding on embryonic development timing of pink salmon. I used standardized development stages and germ ring opening measurements to compare the variation of development at epiboly for odd- and even-broodyear F2 hybrids. Analyses of timing of development at epiboly showed no effects of outbreeding depression, but did show a maternal effect for both crosses and backcrosses; and backcross families differed between replicates. These observations suggest that experimental designs lacking consideration of maternal effects or testing for replicate container effects in early salmon development studies may be flawed. I also compared the variation of hatching times for hybrids of two pink salmon populations, Pillar Creek (Kodiak, Alaska) and Auke Creek (Juneau, Alaska), which are separated by about 1,000 km. Analyses of hatching time showed that families with more Pillar Creek genes required more time to hatch at a given temperature. The differences in hatching time between the pink salmon from Auke and Pillar creeks demonstrates that they differed genetically. Both additive and epistatic types of outbreeding depression influenced the differences in hatching time. Prudent resource management requires knowledge of the biogeographical history and the genetic composition of salmon populations with the potential to interbreed"--Leaf iii.
Book Synopsis Alaska Fishery Research Bulletin by :
Download or read book Alaska Fishery Research Bulletin written by and published by . This book was released on 1998 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Analysis of Development Mortality in Oiled and Unoiled Lines of Pink Salmon by : William W. Smoker
Download or read book Genetic Analysis of Development Mortality in Oiled and Unoiled Lines of Pink Salmon written by William W. Smoker and published by . This book was released on 1998 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Offspring of oil-exposed salmon show reduced reproductive fitness. Eggs cultured in replicate laboratory incubators from factorial matings of adult offspring of pink salmon exposed to Exxon Valdez crude oil were 60% less likely to complete early embryonic development than eggs cultured from salmon in a control line. This fitness loss occurred despite the success of the offspring of oil-exposed salmon in completing their anadromous life cycle in the North Pacific Ocean. Further loss of reproductive fitness was evident in that embryonic development of the remaining viable eggs of the oil-exposed line was disrupted; hatching was significantly advanced (four days) compared to embryos derived from the control line. Total phenotype variation both of embryo mortality and of embryo development time in offspring of oil-exposed salmon was nearly double total phenotype variation in offspring of the control line." -- leaf 2.
Author :United States-Japan Cooperative Program in Natural Resources. Aquaculture Panel. Symposium Publisher : ISBN 13 : Total Pages :162 pages Book Rating :4.:/5 (31 download)
Book Synopsis Goals and Strategies for Breeding in Fisheries by : United States-Japan Cooperative Program in Natural Resources. Aquaculture Panel. Symposium
Download or read book Goals and Strategies for Breeding in Fisheries written by United States-Japan Cooperative Program in Natural Resources. Aquaculture Panel. Symposium and published by . This book was released on 1998 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecology of Atlantic Salmon and Brown Trout by : Bror Jonsson
Download or read book Ecology of Atlantic Salmon and Brown Trout written by Bror Jonsson and published by Springer Science & Business Media. This book was released on 2011-05-03 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.
Book Synopsis A Test of Local Adaptation in Seasonally Separate Subpopulations of Pink Salmon (Oncorhynchus Gorbuscha) by : Christopher V. Manhard
Download or read book A Test of Local Adaptation in Seasonally Separate Subpopulations of Pink Salmon (Oncorhynchus Gorbuscha) written by Christopher V. Manhard and published by . This book was released on 2012 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Differences in fitness related traits were observed between first generation (F1) hybrid and control lines of temporally distinct subpopulations of pink salmon (Oncorhynchus gorbuscha). The lines were cultured in a common freshwater environment, released to sea together, and collected at their natal stream as adults. Early-and late-run pink salmon, which are partially genetically isolated by the time at which they return to Auke Creek in Southeast Alaska to spawn, were crossed to create F1 and F2 hybrid groups in the even- and odd-year brood lines. Marine survival of controls exceeded that of F1 hybrids of the even-year brood line, whereas no difference in marine survival between those experimental groups was detected in the odd-year brood line. First generation hybrids expressed intermediate time of return relative to controls in both brood lines. Second generation hybrids exhibited similar embryonic development rates to controls in both brood lines. These results demonstrate that removal of a genetic barrier as fine as that which occurs within a brood line and location can disrupt local adaptation in a population of pink salmon, which may cause outbreeding depression in hybrids and may potentially reduce the overall biodiversity and productivity of the population.
Download or read book Genetics Abstracts written by and published by . This book was released on 1999 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment and Status of Pacific Rim Salmonid Stocks by :
Download or read book Assessment and Status of Pacific Rim Salmonid Stocks written by and published by . This book was released on 1998 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 2008 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
