Genetic Aanalysis of Size in an Anadromous Population of Pink Salmon

1994 ◽  
Vol 51 (S1) ◽  
pp. 9-15 ◽  
Author(s):  
William W. Smoker ◽  
Anthony J. Gharrett ◽  
Michael S. Stekoll ◽  
John E. Joyce
Keyword(s):  
Variance Components ◽  
Genetic Basis ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Southeast Alaska ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Factors Affecting ◽  
Phenotypic Correlations ◽  
Sib Families ◽  
Mature Fish

Variation of size, particularly among males, has a significant genetic basis in pink salmon (Oncorhynchus gorbuscha) in Auke Creek, southeast Alaska. Heritability (h2), based on variance components of 118 full sib − 59 paternal half sib families of mature fish tagged as fry with coded micro wires, are higher in males (h2 length: 0.8 ± 0.3 (mean ± SE); h2 weight: 0.6 ± 0.2, based on sire effect) than in females (h2 length: 0.3 ± 0.2; h2 weight: 0.4 ± 0.2). Realized heritability probably would be smaller because of environment variability between brood years in factors affecting size and growth. Estimates based on regression of offspring means on fathers' values are smaller (h2 length: 0.4 ± 0.1 in males; 0.2 ± 0.1 in females; h2 weight: 0.0 in males and 0.1 ± 0.1 in females). Estimates of genetic, environmental, and phenotypic correlations of length and weight are all >0.7 (SEs <0.1). Estimates of genetic correlation between length and day of migration from the sea are near 0.4 ± 0.2; estimates of environmental and phenotypic correlations between these traits are smaller (<0.2, SEs <0.1).

Possible Effects of the Sitka Eddy on Sockeye (Oncorhynchus nerka) and Pink Salmon (Oncorhynchus gorbuscha) Migration off Southeast Alaska

1986 ◽  
Vol 43 (2) ◽  
pp. 498-504 ◽  
Author(s):  
Kevin Hamilton ◽  
Lawrence A. Mysak
Keyword(s):  
Oncorhynchus Nerka ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Surface Currents ◽  
Oceanic Circulation ◽  
Migration Routes ◽  
Southeast Alaska ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Northeast Pacific ◽  
Northeast Pacific Ocean

The interannual variability of sockeye (Oncorhynchus nerka) and pink salmon (Oncorhynchus gorbuscha) catches during 1952–62 from southeast Alaska and northern British Columbia is examined in relation to the appearance and disappearance of the Sitka eddy in the offshore oceanic circulation. In years when this large (~300 km in diameter) and intense (surface currents ~0.5 m/s) vortex is present, the spawning migration routes of salmon returning to the Nass and Skeena rivers tend to be deflected southward. An analysis of salmon tagging data collected during 1957 (when the eddy was absent) and 1958 (when the eddy was present) supports this conclusion. The southward deflection during 1958 is a particularly interesting result in light of many other observations which show that several fish species were displaced northward during the 1958 warming of the northeast Pacific Ocean.

A hierarchical Bayesian model for estimating historical salmon escapement and escapement timing

2001 ◽  
Vol 58 (8) ◽  
pp. 1648-1662 ◽  
Author(s):  
Zhenming Su ◽  
Milo D Adkison ◽  
Benjamin W Van Alen
Keyword(s):  
Count Data ◽  
Bayesian Model ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Hierarchical Bayesian ◽  
Hierarchical Bayesian Model ◽  
Southeast Alaska ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Statistical Framework ◽  
Borrowing Strength

In this paper, we present an improved methodology for estimating salmon escapements from stream count data. The new method uses a hierarchical Bayesian model that improves estimates in years when data are sparse by "borrowing strength" from counts in other years. We present a model of escapement and of count data, a hierarchical Bayesian statistical framework, a Gibbs sampling approach for evaluation of the posterior distributions of the quantities of interest, and criteria for determining when the model and inference are adequate. We then apply the hierarchical Bayesian model to estimating historical escapement and escapement timing for pink salmon (Oncorhynchus gorbuscha) returns to Kadashan Creek in Southeast Alaska.

Genetic analysis of growth and maturity in pink salmon (Oncorhynchus gorbuscha)

Genome ◽  
1988 ◽  
Vol 30 (4) ◽  
pp. 529-535 ◽  
Author(s):  
Terry D. Beacham ◽  
Clyde B. Murray
Keyword(s):  
British Columbia ◽  
Genetic Analysis ◽  
Growth Rates ◽  
Variance Components ◽  
Sexual Maturity ◽  
Pink Salmon ◽  
Genetic Component ◽  
Oncorhynchus Gorbuscha ◽  
Late Winter ◽  
Pink Salmon Oncorhynchus Gorbuscha

Variation in growth and sexual maturity was examined for five stocks of pink salmon (Oncorhynchus gorbuscha) spawning at different times in British Columbia. In each stock, four males were mated with eight females in a nested breeding design, and the juveniles were reared for 500 d after fry emergence. Adults in early-spawning northern stocks were smaller than those in late-spawning southern ones, but pink salmon from northern stocks had faster growth rates than those from southern ones. The relative ranking within stocks of family weight remained constant after late winter in the year of maturity. Heritability of weight based upon sire variance components was usually greater than 0.9 after 150 d of rearing. Pink salmon from the earlier-spawning stocks were in a more advanced state of sexual maturity when the experiment was terminated than were those from later-spawning stocks, indicative of a significant genetic component in timing of sexual maturity.Key words: Oncorhynchus, salmon, growth rates, sexual maturity.

Outbreeding effect on embryo development in hybrids of allopatric pink salmon (Oncorhynchus gorbuscha) populations, a potential consequence of stock translocation

Aquaculture ◽  
2007 ◽  
Vol 272 ◽  
pp. S152-S160 ◽  
Author(s):  
Ivan A. Wang ◽  
Sara E. Gilk ◽  
William W. Smoker ◽  
Anthony J. Gharrett
Keyword(s):  
Embryo Development ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Potential Consequence ◽  
Pink Salmon Oncorhynchus Gorbuscha

Juvenile Pacific Sandfish, Trichodon trichodon, Associated with Pink Salmon, Oncorhynchus gorbuscha, Fry in the Nearshore Area, Southeastern Alaska

Copeia ◽  
1983 ◽  
Vol 1983 (2) ◽  
pp. 549 ◽  
Author(s):  
Jack E. Bailey ◽  
Bruce L. Wing ◽  
Joyce H. Landingham
Keyword(s):  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Nearshore Area

Supplementary Checks on the Scales of Pink Salmon (Oncorhynchus gorbuscha) and Chum Salmon (O. keta)

1965 ◽  
Vol 22 (6) ◽  
pp. 1477-1489 ◽  
Author(s):  
H. T. Bilton ◽  
W. E. Ricker
Keyword(s):  
British Columbia ◽  
Chum Salmon ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Commercial Fisheries ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Clear Cut ◽  
Second Year Of Life ◽  
Second Year ◽  
Similar Incidence

Among 159 central British Columbia pink salmon that had been marked by removal of two fins as fry and had been recovered in commercial fisheries after one winter in the sea, the scales of about one-third showed a supplementary or "false" check near the centre of the scale, in addition to the single clear-cut annulus. This evidence from fish of known age confirms the prevailing opinion that such extra checks do not represent annuli, hence that the fish bearing them are in their second year of life rather than their third. Unmarked pink salmon from the same area, and some from southern British Columbia, had a generally similar incidence of supplementary checks. In both marked and unmarked fish the supplementary checks varied in distinctness from faint to quite clear. In a sample of scales of 14 double-fin marked chum salmon which were known to be in their 4th year, all fish had the expected 3 annuli, and 12 fish had a supplementary check inside the first annulus.

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