염분 변화에 따른 넙치(Paralichthys olivaceus)의 산소 소비율과 혈액 성상 KCI

Title
염분 변화에 따른 넙치(Paralichthys olivaceus)의 산소 소비율과 혈액 성상
Alternative Title
Oxygen Consumption and Blood Physiology of Olive Flounder Paralichthys olivaceus Subjected to Salinity Changes
Author(s)
오승용; 정유경; 이근수; 강필준; 박혜미
KIOST Author(s)
Oh, Sung Yong(오승용)Jeong, Yu Kyung(정유경)Lee, Geun Su(이근수)Kang, Pil Jun(강필준)Park, Hye Mi(박혜미)
Publication Year
2020-08
Abstract
Oxygen consumption and blood physiology of olive flounder Paralichthys olivaceus (mean body weight 106.6±6.8 g, mean±SD) was investigated at salinities of 34.0 (control), 33.7, 33.3, 32.6, 31.3, 28.6, 23.1, 12.2 and 0.0 psu at 20.0°C, respectively. Stepwise salinity changes 34.0→33.7→33.3→32.6→31.3→28.6→23.1→12.2→0.0 psu) with an interval of 24 h for each salinity induced a significant (P<0.05) increase of oxygen consumption rate (OCR) in fish exposed from 31.3 to 0.0 psu compared to that of control fish. The maximum OCR was found in fish exposed to 23.1 psu, which was accompanied by 36.2% higher energy consumption than the control fish. Fish exposed to each salinity for 24 h induced a significant decrease of blood plasma Na+ in 0.0 psu and Cl- in 12.2 and 0.0 psu (P<0.05), and increase of plasma glutamic oxaloacetic transaminase (GOT) in 0.0 psu compared to the control fish (P<0.05). The results of this experiment show that P. olivaceus exposed to concentrations below 31.3 psu requires more energy costs to adapt to salinity changes than 34.0 psu under our experimental conditions.
ISSN
0374-8111
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/35198
DOI
10.5657/KFAS.2020.0620
Bibliographic Citation
한국수산과학회지, v.53, no.4, pp.620 - 627, 2020
Publisher
한국수산과학회
Keywords
Olive flounder; Salinity; Oxygen consumption; Blood physiology; Energy loss
Type
Article
Language
Korean
Publisher
한국수산과학회
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