Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Ecological Characteristics of the Endangered Brown Alga, Undariopsis peterseniana (Kjellman) Miyabe et Okamura, at Jeju Island, Korea: Growth and Maturation

제주도에 서식하는 보호대상 해조류 넓미역의 생태학적 특성: 생장 및 성숙

  • 황은경 (국럽수산과학원 해조류바이오연구소) ;
  • 공용근 (국럽수산과학원 해조류바이오연구소) ;
  • 박찬선 (목포대학교 해양수산자원학과)
  • Received : 2009.08.19
  • Accepted : 2010.02.04
  • Published : 2010.02.28
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Abstract

Ecological characteristics of Undariopsis peterseniana, an endangered brown alga, were investigated from January to December 2007 at Jeju Island, Korea. The U. peterseniana population formed dense patches at depths of 12~17 m depth. Growth in length of the alga reached a maximum of $168{\pm}36cm$ at June. Sorus were observed from May to August, and a maturation peak was detected in June, when bottom seawater temperatures were around $18^{\circ}C$. After zoospore release, the alga bleached and disappeared after August. Developmental initiation of sporophytes occurred at temperature above $15^{\circ}C$, and sorus formation required approximately 236 degree-days. This is the first study to examine a U. peterseniana population throughout the entire year in a natural habitat.

Keywords

References

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