한국발생생물학회지:발생과생식 (Development and Reproduction)

  • 제15권3호
  • /
  • Pages.257-263
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  • 2011
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  • 2465-9525(pISSN)
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  • 2465-9541(eISSN)
한국발생생물학회 (The Korean Society of Developmental Biology)
권호 표지

Gonadal Development and Reproductive Cycle of Sea Hare Aplysia kurodai in Jeju Coastal Waters

  • Lee, Chi-Hoon (Marine and Environmental Research Institute, Jeju National University) ;
  • Kaang, Bong-Kiun (Dept. of Biological Sciences, College of National Sciences, Seoul National University) ;
  • Lee, Young-Don (Marine and Environmental Research Institute, Jeju National University)
  • 투고 : 2011.09.02
  • 심사 : 2011.09.21
  • 발행 : 2011.09.30
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초록

Gonadal development and reproductive cycle of Aplysia kurodai inhabiting the coastal waters of Jeju Island, Korea were investigated based on monthly changes of gonadosomatic index, gametogenesis, and developmental phases of ovotestis. A. kurodai was simultaneous hermaphrodite; the ovotestis generally embedded in the posterior dorsal surface of the brownish digestive gland. The ovotestis is composed of a large number of follicles, and both oocytes and sperm are produced in the same follicles. In the sampling periods, the adult A. kurodai population have characteristic of seasonal pattern present during only 10 months. The reproductive cycle can be grouped into the following successive stages in the ovary: inactive (December to February), active (December to April), mature and spawning (April to September). The gonadal development of A. kurodai coincided with rising temperature, and spawning occurred from April to September, when the temperature was high. The histological observations of the ovotestis suggested that this species have a single spawning season that extend over six months.

키워드

참고문헌

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