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海鱺的育種-野生種魚子代的成長及抗病力表現

  • 日期:93-06-18
  • 年度:2003
  • 領域:漁業領域
  • 主持人:張賜玲
  • 研究人員:林義彬、李宜珊、張正芳

海鱺為重要的箱網養殖魚種,但其魚苗或幼魚由陸上的魚塭移入海上箱網後,活存率相當低,造成此因素的原因可能為近親所致。本計畫擬培育野生捕獲的幼魚,培育作為種魚,以觀察其子代之成長率及抗病性之表現。如果其子代抵抗病源的能力能改善,將能提高箱網養殖海鱺的活存率、增強產業的競爭力。

研究報告摘要(英)


Cobia (Rachycentron canadum) is an important sea-cage farmed marine finfish species.But the survival rate is low after being transferred from ponds into the sea at fry orjuvenile stage. The reason may be owing to the inbreeding depression through the longtime inbreeding process. This study aims to carry out the brood stock cultivation fromthe tamed wild-caught juvenile in order to assess the growth performance and diseaseresistance of their progeny. If the disease resistance of progeny from wild brood stockcan be improved, the survival rate of cobia and their competitiveness of cobia cultureindustry can be enhanced.