Relationship between water temperature and oxygen consumption rate of the black scraper Thamnaconus modestus SCOPUS KCI

Title
Relationship between water temperature and oxygen consumption rate of the black scraper Thamnaconus modestus
Author(s)
Lee, J.-A.; Lee, J.S.; Kim, J.-H.; Myoung, J.-G.; Oh, S.-Y.; Kang, R.-S.
KIOST Author(s)
Lee, Jae Seong(이재성)Myoung, Jung Goo(명정구)Oh, Sung Yong(오승용)
Publication Year
2014
Abstract
The black scraper Thamnaconus modestus was a commercially important fish species in the 1980s, but suddenly its commercial significance decreased in the 1990s mainly due to continuous overfishing. Recently, in order to reverse the depleted stocks of the black scraper and help the species recover, seed production technology has emerged. This has led to the farming of the black scraper in several parts of the southern coast of Korea. Since detailed research on its metabolism in relation to water temperature has been scanty, this was the investigative focus of the present study. The standard metabolism rates of the black scraper (9-10 months old, total length = 22.6 ± 0.8 cm, wet weight = 140.3 ± 13.9 g) were measured at seven different water temperature settings (12, 15, 17, 20, 23, 26, 28°C) to understand the relationship between metabolism and water temperature. Relationships between water temperature (WT) and oxygen consumption rate (OCR) were obtained as SOCR (weight-specific oxygen consumption rate) = 0.0117WT - 0.0135 (r2= 0.9351) and IOCR (oxygen consumption rate per individual) = 1.8160WT - 5.4007 (r2= 9428). The Q10 (temperature sensitivity), an indicator of the sensitivity of biological function to temperature, was analyzed. In our experiment, when the water temperature increased, the Q10 value decreased. The Q10 value was 6.27 in waters where the temperature ranged from 12-15°C and this was much higher than the values obtained in waters where temperatures ranged between (1) 15-23°C and (2) 23-28°C. Consequently, it was shown that the black scraper is a warm water species and inhabiting waters in the temperature range from 15-28°C is deemed appropriate.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2940
DOI
10.4217/OPR.2014.36.1.039
Bibliographic Citation
Ocean and Polar Research, v.36, no.1, pp.39 - 47, 2014
Publisher
Korea Ocean Research and Development Institute
Keywords
Black scraper; Oxygen consumption rate; Thamnaconus modestus; Water temperature
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

Fish ecology,Fish taxonomy,Fish stock enhancement,어류생태,어류분류,어류자원증식

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