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Quantitative Genetic Analysis Of A Fitness Related Life History Character Development Rate In Odd And Even Year Populations Of Pink Salmon Oncorhynchus Gorbuscha
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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 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 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:
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 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 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 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 Contemporary Population Genetic Structure and Phylogeography of Pink Salmon by : Carolyn Tarpey
Download or read book Contemporary Population Genetic Structure and Phylogeography of Pink Salmon written by Carolyn Tarpey and published by . This book was released on 2016 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pink salmon Oncorhynchus gorbuscha are the most abundant Pacific salmon, ranging widely across drainages of the North Pacific Ocean and Bering Sea from Japan in Asia to Washington State in North America. The species are unique in that they have an obligate two-year life cycle which leads to reproductively isolated even- and odd-year lineages. Abundance of each lineage varies by location, and relative abundance can shift from one lineage to the other through time, as has been shown in the Asian portion of the range. The existence of distinct lineages of pink salmon provides a unique opportunity to address population and evolutionary genetics questions, as the lineages can serve as replicates across the entire range of the species. For instance, population structure repeated in parallel within the lineages could help identify historical patterns of isolation due to glacial cover in the region. We used genotyping by sequencing to describe the contemporary population genetic structure of even- and odd-year lineages of pink salmon throughout their range. Our goals are twofold: to conduct a population genetic characterization of the lineages to better understand their relationship, and to describe any structure within the lineages with the intent of examining the evolution of any parallel population structure identified. We genotyped 245 individuals and incorporated genotypes from 138 previously studied individuals for 16,681 SNPs; individuals originated from seven pairs of even- and odd-year populations of pink salmon spread across their range from Japan in Asia to the Pacific Northwest of North America. It has been shown that pink salmon exhibit a complex hierarchical population structure: they possess geographic structure due to their broad species range and temporal structure due to the even- and odd-year lineages. Here, hierarchical AMOVAs reveal that a significant amount of the variation in the data was explained by differences between the lineages. The lineages show differences in the distribution of diversity with the even-year lineage populations exhibiting significantly lower observed heterozygosity than those of the odd-year lineage. Within both lineages, the pattern of population structure was consistent. The Asian and northern Alaska populations show little differentiation but differ significantly from populations in southcentral Alaska and the Pacific Northwest. We tested the partitioning of variation between Asian/northern Alaska and the southcentral Alaska/Pacific Northwest within each lineage; the proportion of variation attributed to the difference between these groups was significant in both lineages, but greater in the odd-year lineage than in the even-year. Using the contemporary population structure and known paleoecological information, we inferred patterns of shared historical refugial habitat. Our data suggest that during the last glacial maximum both lineages likely occupied a northern Beringial refugium as well as a southern North American refugium. These results highlight the influence that historical patterns of habitat availability can have on contemporary population structure, and support the hypothesis of a pre-glacial origin of the lineages.
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 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 Life History of Pink Salmon (Oncorhynchus Gorbuscha) and Implications for Management by : Marianna Alexandersdottir
Download or read book Life History of Pink Salmon (Oncorhynchus Gorbuscha) and Implications for Management written by Marianna Alexandersdottir and published by . This book was released on 1983 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis First-generation Effects on Development Time of Outcrossing Between Geographically Isolated and Seasonally Isolated Populations of Pink Salmon (Oncorhynchus Gorbuscha) by : Jesse D. Echave
Download or read book First-generation Effects on Development Time of Outcrossing Between Geographically Isolated and Seasonally Isolated Populations of Pink Salmon (Oncorhynchus Gorbuscha) written by Jesse D. Echave and published by . This book was released on 2010 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Bootstrap analyses of hatch data collected during two independent experiments revealed that hybridization between pink salmon (Oncorhynchus gorbuscha) breeding populations separated at either a large geographic scale or a fine temporal scale can influence development time. Restricted maximum likelihood estimators also revealed that sire, dam, cross, and parental interaction can influence genetic variance associated with development time at either scale. Few studies have investigated the extent of local adaptation that results from fine-scale ecological variation, the genetic underpinnings of that adaptation, or the potential impacts outbreeding at that level may have on fitness. We tested whether or not local adaptation contributed to genetic divergence among subpopulations of pink salmon that overlap temporally within the same spawning habitat (early-run fish and late-run fish within Auke Creek, near Juneau, Alaska) by determining whether or not outbreeding influenced development time (a fitness-related trait) in first-generation hybrids. We examined genetic divergence among populations isolated at a much broader scale (Pillar Creek on Kodiak Island, Alaska, and Auke Creek, 1,000 km great circle distance) as a more extreme reference to local adaptation. Results provide evidence that development time is locally adapted and expressed primarily in a locus-by-locus manner" -- Leaf iii.
Book Synopsis Outbreeding Depression in Hybrids Between Spatially Separated Pink Salmon (Oncorhynchus Gorbuscha) Populations by : Sara Ellen Gilk
Download or read book Outbreeding Depression in Hybrids Between Spatially Separated Pink Salmon (Oncorhynchus Gorbuscha) Populations written by Sara Ellen Gilk and published by . This book was released on 2003 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Hybridization between distinct populations of salmon can cause fitness loss (outbreeding depression), and may result in reduced survival. The erosion of fitness-related traits such as homing ability and change in family size distribution may underlie reduced survival. Out breeding depression was investigated in two independent experiments that made hybrids between geographically separated and genetically divergent pink salmon populations. Control crosses were made from male and female Auke Creek (Southeast Alaska) pink salmon and hybrid crosses were between Auke Creek females and Pillar Creek (Kodiak Island, about 1000km away) males. Parentage assignment from microsatellite analysis improved estimates of survival and straying, and was used to examine variation in family size. The return rates of even-broodyear F 1 control and hybrid fish were similar, but the odd-broodyear F 1 control returns exceeded hybrid returns. The F 2 control returns exceeded hybrid returns in both the even- and odd broodyears. Hybridization did not impair homing ability; weekly surveys in nearby ( - lkm) Waydelich Creek revealed similar straying rates from Auke Creek by both hybrid and control fish in all years. Family data were available only for even-broodyear returns; hybridization did not increase the index of variability (ratio of variance to mean) in family size in these years. Outbreeding depression in hybrids of geographically separated populations demonstrates the potential for introgression of nonnative fish to erode natural production"--Leaf iii.
Book Synopsis Data and Computations Used in Racial Analyses of Even- and Odd-year North American Pink Salmon on the Basis of Their Scale Characters by : Bilton, H. T
Download or read book Data and Computations Used in Racial Analyses of Even- and Odd-year North American Pink Salmon on the Basis of Their Scale Characters written by Bilton, H. T and published by ottawa : queen's printer. This book was released on 1971 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Ocean Temperatures on the Survival of the Odd- and Even-year Pink Salmon (Oncorhynchus Gorbuscha) Populations Originating from Prince William Sound, Alaska by : T. Mark Willette
Download or read book The Effects of Ocean Temperatures on the Survival of the Odd- and Even-year Pink Salmon (Oncorhynchus Gorbuscha) Populations Originating from Prince William Sound, Alaska written by T. Mark Willette and published by . This book was released on 1985 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Genetic Structure and Life History Variability in Oncorhynchus Nerka from the Snake River Basin. Final Report by :
Download or read book Population Genetic Structure and Life History Variability in Oncorhynchus Nerka from the Snake River Basin. Final Report written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors used protein electrophoresis to examine genetic relationships among samples of sockeye salmon and kokanee (Oncorhynchus nerka) from the Snake River basin. A few collections from elsewhere in the Pacific Northwest were also included to add perspective to the analysis. After combining temporal samples that did not differ statistically within and between years, 32 different populations were examined for variation at 64 gene loci scored in all populations. Thirty-five (55%) of these gene loci surveyed were polymorphic in at least one population. Average heterozygosities were relatively low (0.006--0.041), but genetic differentiation among populations was pronounced: the value of Wright's F[sub ST] of 0.244 is higher than has been reported in any other study of Pacific salmon.
