• Title/Summary/Keyword: Ctenopharyngodon idellua

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Morphological and Chromosomal Charateristics of the Three Introduced Cyprinid Species (Cyprinidae) (도입된 잉어과 어류 3종의 외부형태 및 염색체 특징)

  • Kim, Seong-Won;Choi, Nack-Joong;Lee, Jong-Yun;Lee, Wan-Ok;Jang, Seon-Il
    • Korean Journal of Ichthyology
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    • v.8 no.2
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    • pp.68-73
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    • 1996
  • This study was carried out to obtain the basic information on morphological and chromosomal charateristics in the three species of Chinese carps (grass carp; Ctenopharyngodon idellua, bighead carp; Aristichthys nobilis, and silver carp; Hypophthalmichthys molitrix) introduced to Korea from China. C. idellua was differ from A. nobilis and H. molitrix by the number of gill rakers, scales, fin rays, body proportion. A. nobilis and H. molitrix were similar in having ventral keel and many scale number, but H. molitrix was differ from A. nobilis by the connected gill rakers and body color pattern. Diploid chromosome and arm number (fundamental number, NF) of the three species were all the same to 2n=48 and NF=84. Diploid chromosome numbers in the three species are consisted of 10 pairs of metacentric chromosome, 8 pairs of submetacentric chromosome and 6 pairs of acro and/ or telocentric chromosome. Morphological and karyological relationship of the three Chinese carps are discussed.

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