• Title/Summary/Keyword: Blue spot mudskipper

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Growth Estimation of 0-Aged Blue Spot Mudskipper Boleophthalmus pectinirostris Using Length Frequency Data (전장빈도분석에 의한 짱뚱어 Boleophthalmus pectinirostris 0세어의 성장 추정)

  • Kim, Jin-Koo;Jeong, Sun-Jae
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.40 no.1
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    • pp.50-52
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    • 2007
  • The growth of young-of-the-year blue spot mudskipper, Boleophthalmus pectinirostris, was investigated using length-frequency data for 395 individuals collected from a mud flat in southwestern Korea between August and October 2001. Three cohorts were separated by the Bhattacharya method. In October, individuals of cohort-I reached 98 mm in total length, whereas those of cohort-III reached just 66 mm. Each cohort reached hibernation in November, that could be related to the ring formation in the following year.

Age and Growth of the Blue Spot Mudskipper (Boleophthalmus pectinirostris) in the Mud Flat of Southwestern Korea (한국 남서 갯벌지역 짱뚱어 (Boleophthalmus pectinirostris)의 연령과 성장)

  • JEONG Sun Jae;HAN Kyeong Ho;KIM Jin Koo;SIM Doo-Saing
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.37 no.1
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    • pp.44-50
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    • 2004
  • Age and growth of the blue spot mudskipper (Boleophthalmus pectinirostris) were studied using the samples caught in the mud flats of southwestern Korea during April-October, 2001. The value of the marginal index of the second actinost bone was the lowest in July and October and indicated by rings that was analysis of formed teice a year. The relationship between body weigt (BW) and total length (TL) was expressed as BW=0.000005 $TL^{3.12}\;(r^2=0.92)$ for females and BW=0.000476 $TL=^{2.18}\;(r^2=0.62)$ for males. Regression analysis of TL-BW between sexes showed a significant difference (P<0.01). Relationship between total length (TL) and actinost radius (R) were expressed as TL=16.9+33.4 R $(r^2=0.62)$ for females and TL=45.8+26.2 R $(r^2=0.41)$ for males. Growth parameters, $L\infty,t_0$ and K were estimated as 165.2 mm, -0.23, and 1.07 for females and 155.3 mm, -0.35, and 1.39 for males.