Animal cells and systems

The Korean Society for Integrative Biology (한국통합생물학회)
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Age structure and growth rates of two Korean salamander species (Hynobius yangi and Hynobius quelpaertensis) from field populations

  • Lee, Jung-Hyun (Department of Biological Sciences, Kangwon National University) ;
  • Min, Mi-Sook (Conservation Genome Resource Bank for Korean Wildlife (CGRB), Research Institute for Veterinary Science, BK21 Program for Veterinary Science and College of Veterinary Medicine, Seoul National University) ;
  • Kim, Tae-Ho (Conservation Genome Resource Bank for Korean Wildlife (CGRB), Research Institute for Veterinary Science, BK21 Program for Veterinary Science and College of Veterinary Medicine, Seoul National University) ;
  • Baek, Hae-Jun (Conservation Genome Resource Bank for Korean Wildlife (CGRB), Research Institute for Veterinary Science, BK21 Program for Veterinary Science and College of Veterinary Medicine, Seoul National University) ;
  • Lee, Hang (Conservation Genome Resource Bank for Korean Wildlife (CGRB), Research Institute for Veterinary Science, BK21 Program for Veterinary Science and College of Veterinary Medicine, Seoul National University) ;
  • Park, Dae-Sik (Division of Science Education, Kangwon National University)
  • Received : 2010.05.20
  • Accepted : 2010.08.24
  • Published : 2010.12.31
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Abstract

We studied and compared the age structure, body size, and growth rates of field populations of two Korean salamander species (Hynobius yangi and Hynobius quelpaertensis) to elucidate important aspects of basic population dynamics of these two endemic Hynobius species. In both populations, females were sexually mature at three years of age, while H. yangi and H. quelpaertensis males matured at two and three years of age, respectively. Both males and females of H. yangi and H. quelpaertensis attained a maximum age of 11 years and 10 years, respectively. In both species, the snout-vent length (SVL) and body weight (BW) of the females were greater than those of the males. The SVL, BW, and asymptotic SVL of both male and female H. yangi were smaller than those of H. quelpaertensis. The adult growth rates after sexual maturation of male and female H. yangi were lower than those of H. quelpaertensis, possibly resulting in the smaller body size of the former, although overall growth coefficients were not significantly different between the two species. We also compared the age structure and growth rates of three Korean and three Japanese species of Hynobius.

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References

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