Fisheries and Aquatic Sciences

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Directional Asymmetry of Gonadal Development in Ayu (Plecoglossus altivelis)

  • Park In-Seok (Division of Marine Environment and Bioscience, College of Ocean Science and Technology, Korea Maritime University) ;
  • Zhang Chang Ik (Department of Marine Production Management, Pukyong National University) ;
  • Kim Young Ja (Research Institute of Marine Science and Technology, Korea Maritime University) ;
  • Bang In Chul (Department of Life Science, College of Natural Science, Soonchunhyang University)
  • Published : 2005.12.01
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Abstract

Directional (sinistral) asymmetry (DA) occurs when the traits of one side of a supposedly bilaterally symmetrical organism differ in a random way from those of the other side. We examined asymmetries in gonadal growth traits within both sexes of hatchery reared ayu, Plecoglossus altivelis. The pattern of the gonadal growth from hatching to 320 days after hatching was a type of DA except for the growth in gonad weight from 140 to 180 days after hatching, although the ovary of the right side tended to exhibit more pronounced DA phenomenon.

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References

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