Development and Reproduction (한국발생생물학회지:발생과생식)

The Korean Society of Developmental Biology (한국발생생물학회)
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Comparative Analysis of the Morphometric Changes in Ussurian bullhead, Leiocassis ussuriensis, and Korean bullhead, Pseudobagrus fulvidraco, in the Early Period of Growth

  • Lim, Sang Gu (Inland Aquaculture Research Center, National Fisheries Research & Development Institute) ;
  • Han, Hyoung Kyun (Inland Aquaculture Research Center, National Fisheries Research & Development Institute) ;
  • Kang, Jung Ha (Biotechnology Research Division, National Fisheries Research & Development Institute) ;
  • Park, Hye Jung (Division of Marine Environment and Bioscience, Korea Maritime and Ocean University) ;
  • Oh, Ji Su (Division of Marine Environment and Bioscience, Korea Maritime and Ocean University) ;
  • Lim, Ji Su (Division of Marine Environment and Bioscience, Korea Maritime and Ocean University) ;
  • Goo, In Bon (Division of Marine Environment and Bioscience, Korea Maritime and Ocean University) ;
  • Park, In-Seok (Division of Marine Environment and Bioscience, Korea Maritime and Ocean University)
  • Received : 2013.08.29
  • Accepted : 2013.09.11
  • Published : 2013.09.30
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Abstract

Morphometric changes in the Ussurian bullhead, Leiocassis ussuriensis, and the Korean bullhead, Pseudobagrus fulvidraco, were observed during the early period of growth. Yolk length, yolk height, and yolk volume in the two species decreased within 9 days post-hatching (DPH) (p<0.05). The body lengths and body heights of both species increased gradually to 150 and 130 DPH, respectively (p<0.05). The horizontal distance between the anteriormost extension of the head and the anterior insertion of the pectoral fin, the anteriormost extension of the head ${\times}$ the verticality position of the anterior insertion of the primary dorsal fin rays, and the anterior insertion of the primary dorsal fin ${\times}$ the anterior insertion of the pectoral fin were greater in the Korean bullhead than in the Ussurian bullhead (p<0.05). However, the relative sizes of the head region, pectoral fin, ventral fin, and anal fin were greater in the Ussurian bullhead than in the Korean bullhead (p<0.05), and relative body depth and the size of the outer-mandible barbel were greater in the Korean bullhead than in the Ussurian bullhead (p<0.05). The growth curves of the morphometric characteristics of both species were divided into three types.

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References

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