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수온에 따른 강도다리 Platichthys stellatus의 산소소비 리듬
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  • 수온에 따른 강도다리 Platichthys stellatus의 산소소비 리듬
저자명
변순규,정민환,이종하,이배익,구학동,박상언,김이청,장영진,Byun. Soon-Gyu,Jeong. Min-Hwan,Lee. Jong-Ha,Lee. Bea-Ik,Ku. Hag-Dong,Park. Sang-Un,Kim. Yi-Cheon
간행물명
한국수산학회지
권/호정보
2008년|41권 2호|pp.113-118 (6 pages)
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한국수산과학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Diel rhythm of oxygen consumption (OC) of the starry flounder Platichthys stellatus was measured at different water temperatures in a closed recirculating seawater system with a respiratory chamber. The fish consumed 70.5, 79.7, and 90.6 mg $O_2/kg/hr$ at 15, 20, and $25^{circ}C$, respectively, showing a linear increase in OC with water temperature. The OC of fish showed a clear diel rhythm, with lower values during the day and higher values at night, in accordance with the light (09:00-21:00) and dark (21:00-09:00) phases of the diel cycle (12L:12D) in water at 15 and $20^{circ}C$. However, the OC of the fish showed an unclear diel rhythm with the light and dark phases of the diel cycle at $25^{circ}C$. The respective OC at 15, 20 and $25^{circ}C$ was 63.8, 72.4, and 88.4 mg $O_2/kg/hr$ during the light phases and 77.2, 87.1, and 92.8 mg $O_2/kg/hr$ during the dark phase. The starry flounder is thought to be a nocturnal fish with a higher OC at night, while it rests during the day. Its OC was the most stable in the light, when it did not feed. Consequently, the night-time OC is the active OC and the day-time OC is the resting OC in the starry flounder.