조피볼락(Sebastes schlegeli)의 장거리 수송을 위한 적정 수온 및 염분 조건 탐색 = Investigation of Suitable Temperature and Salinity Ranges for Long-distance Transport of the Rockfish Sebastes schlegeli

다국어 초록 (Multilingual Abstract)

The optimum temperature and salinity for long-distance transportation of rockfish Sebastes schlegeli were investigated by assessing hematological characteristics and hemocyte mortality. The possible effects of the interaction of temperature and salinity on these attributes were also investigated. No significant difference was found in hematocrit and hemoglobin among experimental conditions. Glucose levels were highest in fish exposed to salinities of 34 psu (4℃), 18 psu (4-6℃) and 10 psu (4-8℃). Cortisol levels were elevated in the lowest temperature group (4℃), but upper limits decreased with decreasing salinity. AST and ALT increased as temperature decreased at salinities lower than 26 psu. The ratio of living cells was 99.0–99.6% in all experimental groups. The percentage of necrotic cells was highest in fish exposed to salinities of 34 psu (4℃), 18 psu (6-8℃), and 10 psu (4-8℃). The percentage of necrotic cells decreased significantly as temperature and salinity decreased, indicating that both salinity and the interaction of salinity and temperature affected cell necrosis.

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