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Seasonal and diel abundance and feeding patterns of Chaoborus flavicans in Sang-Chun reservoir
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  • Seasonal and diel abundance and feeding patterns of Chaoborus flavicans in Sang-Chun reservoir
  • Seasonal and diel abundance and feeding patterns of Chaoborus flavicans in Sang-Chun reservoir
저자명
Jeong. Ga-Ram,Park. Sang-Kyu
간행물명
Animal cells and systems
권/호정보
2010년|14권 4호|pp.297-303 (7 pages)
발행정보
한국통합생물학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

To document the basic ecological aspects of Chaoborus species, which has never been reported in Korea, we attempted to identify the species, to monitor seasonal and vertical dynamics, and to elucidate trophic relations of the species in Sang-Chun reservoir. Using morphological characteristics, we identified the collected samples as C. flavicans. Also, we compared the distribution of C. flavicans, Daphnia rosea and chlorophyll a to observed seasonal dynamics. The increase of C. flavicans was observed 1-2 weeks after the increase of D. rosea. Survey of diel vertica migration patterns in the summer season showed that C. flavicans were in hypolimnion at daytime, but moved to the epilimnion at night. Finally, to determine trophic relationships in Sang-Chun reservoir, additional studies on the food web were undertaken by stable isotope analysis. Chaoborus flavicans I-II instars appear to be filter feeders based on carbon isotope values. Trophic levels of C. flavicans III-IV instars were shown to be higher than other zooplankto based on nitrogen isotope values.