Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
권호 표지

Survival in Fry and Juvenile Stages of Masu salmon Oncorhynchus masou : Estimates of Heritabilities and Correlations

  • Published : 1999.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

A genetic analysis for survival in fry and juvenile stages of masu salmon was described. Data from two year-classes of masu salmon were analyzed to estimate the heritability for survival during the fresh water-rearing period. The overall survival for each year-class during 8 months of freshwater rearing were 17.8 and 11.6%, respectively. Whirling disease virus (WDV) was the main cause of death in all year-classes. Survival data obtained for offspring of 42 sires and 60 dams of masu salmon (two year classes of data) was analyzed. Average survival rates in the observation period ranged 2-87% for 1994; 0-98% for 1995, repectively. In both year-classes, heritabilities for survival derived from the sire components of variance were low(0.13-0.18), except one. Heritabilities derived from the dam components of variance ranged 0.14-0.61, including non-additive genetic and /or common enviromental effects. Correlations between survival in two long-term periods were all positive and medium to high in magnitude(0.345-0.918). Correlations between survival in non-succeeding periods were, in general, low and insignificant. Correlation between long-term survival and growth rate was found in masu salmon. The corresponding correlation in masu salmon was not significantly different from zero. Correlations between sire survival and body weight, length and condition factor of slaughter were not significant, but varied.

Keywords

References

  1. J. Fish. Res. Bd. Can. v.31 Relative importance of additive genetic and maternal sources of variation in early survival of young splake trout (Salvelinus fontinalis × S. namaycush) Ayles, G. B.
  2. Manual of quantitative genetics(4th ed.) Becker, W. A.
  3. Fisheries Science v.64 Estimation of heritabilities of growth traits, and phenotypic and genetic correlations in juvenile masu salmon Oncorhynchus masou Choe, M.-K.;F. Yamazaki
  4. Aquaculture v.15 A genetic analysis of the performance of three rainbow trout brookstocks Gall, G. A. E.;S. J. Gross
  5. Aquaculture v.3 Selection experiments with salmon. Ⅰ. Differences in resistance to vibrio disease of salmon parr(Salmo salar) Gjedrem, T.;D. Aulstad
  6. Livest. Prod. Sci. v.11 Complete diallel cross between five strains of Atlantic salmon Gjerde, B.;T. Refstie
  7. Aquaculture v.8 A genetic analysis of egg, alevin and fry mortality in salmon, sea trout and rainbow trout Kanis, E.;T. Refstie;T. Gjedrem
  8. Trans. Am. Fish. Soc. v.107 Heritability of tolerance for infectious hematopoetic necrosis in sockeye salmon (Oncorhynchus nerka) McIntyre, J. D.;D. F. Amend
  9. Methods of marking fish and shellfish v.23 Clipping Fins and Other Tissues Nielson, L. A.
  10. Conf. on Immunology and Immunization of fish;Dev. Comp. Immunol. no.SUP. 2 Preliminary results: differences between rainbow trout families in resistance against vibriosis and stress Refstie, T.;W. B. Van Muiswinkel(ed.);E. L. Cooper(ed.)
  11. Aquaculture v.38 Genetic variation in weight and survival of brook trout (Salvelinus fontinalis) Robinson, O. W.;L. G. Luempert
  12. Aquaculture v.89 Survival in early life of Atlantic salmon and rainbow trout: estimates of heritabilities and genetic correlations Rye, M.;K. M. Lillevik;B. Gjerde
  13. Aquaculture v.66 Genetic variation in survival of Atlantic salmon during the sea-rearing period Standal, M.;B. Gjerde