Comparison of oxygen consumption patterns between wild and cultured black rockfish Sebastes schlegeli

Abstract

To compare metabolic activity rhythms between wild and cultured black rockfish Sebastes schlegeli, we measured long‐term oxygen consumption rates (OCR) using an automatic intermittent‐flow respirometer under constant temperature and darkness. Oxygen consumption rates peaked among wild black rockfish at 12.4 h intervals, which corresponded to a circatidal rhythm. The wild fish were probably exhibiting responses that corresponded to tidal events in their natural environment. However, when captured wild black rockfish were kept under laboratory conditions (12 h light [L] : 12 h dark [D]) for 30 days, the OCR shifted to a circadian rhythm (24.1–24.9 h). The OCR of cultured black rockfish that had been reared in a tank for 9 months peaked at approximately 24 h intervals, corresponding to a circadian rhythm. The results of this study suggest that the differences in OCR patterns between wild and cultured fish were mainly due to differences in the environmental conditions between tidal and non‐tidal habitats.

Effects of temperature changes on the endogenous rhythm of oxygen consumption in the Japanese flounder Paralichthys olivaceus

“…More detailed descriptions of AIFR, including the location of the probe and a schematic of the apparatus, are provided by Kim et al . and Yoon et al 9,34–36 …”

“…More detailed descriptions of AIFR, including the location of the probe and a schematic of the apparatus, are provided by Kim et al and Yoon et al 9,[34][35][36] The OCR was analyzed using the weighted smooth curve procedure at 2% individual error. To plot a best-fit smooth curve through the center of the data, we used the locally weighted least squares error method (KaleidaGraphy custom program for Macintosh, Synergy Software, Essex Junction, VT, USA).…”

Relationship between Water Temperature and Oxygen Consumption Rate of the Black Scraper Thamnaconus modestus

“…우리는 생물의 대 사 작용을 포함하는 다양한 생리현상과 그들이 처한 환경 과의 관계 구명으로부터 그 어종의 생태적인 정보를 파악 할 수 있다고 보는데, 그것은 한 예로 어류의 생태와 산소 소비량 간에 밀접한 관계가 있는 것이 연구논문에서 시사 되어져 왔기 때문이다 (Yamamoto et al 1990;Lee et al 2012). 이는 대상종이 주요 수산 어종일 경우, 수온을 위 시한 환경과 관련한 대사 작용의 이해가 종의 생태 및 그 에 파생된 다양한 연구 분야, 즉 이동경로, 서식적지 및 자 원량 파악에서 보다 심층 있게 기여할 것이며 (Lee and Kim 2001;Yoon et al 2003), 증양식 분야에서도 대상종 의 수용력 파악 및 생산 기술 개발과 관련하여 중요한 기 초 정보를 제공할 수 있다 (Brown et al 1984;오 등 2007;오 등 2009;오 등 2012).…”