• 제목/요약/키워드: Pleuronectes obscurus (Herzenstein)

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Egg Development and Mitotic Interval (τ0) in Black Plaice, Pleuronectes obscurus (Herzenstein)

  • Park, In-Seok;Im, Soo-Yeon
    • Fisheries and Aquatic Sciences
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    • 제13권4호
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    • pp.278-283
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    • 2010
  • Black plaice, Pleuronectes obscurus (Herzenstein), were collected and fertilized to observe egg development, temperature-related cleavage rates, and mitotic intervals (${\tau}_0$). Fertilized egg was demersal, adhesive, and did not contain oil globules. After 1.75 h, the blastodisc formed, and hatching took place 121 h after fertilization at $14^{\circ}C$. The hatched larvae were $3.5{\pm}0.16\;mm$ in total length. At higher temperatures, eggs developed faster and underwent further identical developmental processes. Additionally, ${\tau}_0$ and water temperature were strongly negatively correlated at all temperatures (Y=-2.6981X+98.767, $R^2$=0.9831, where Y is ${\tau}_0$, and X is temperature) for black plaice.