Critical Thermal Maximum (CTM) of Cultured Black Rockfish, Sebastes schlegeli KCI

Title
Critical Thermal Maximum (CTM) of Cultured Black Rockfish, Sebastes schlegeli
Alternative Title
Critical Thermal Maximum (CTM) of Cultured Black Rockfish, Sebastes schlegeli
Author(s)
김완수; 윤성진; 길준우
Publication Year
2003-06
Abstract
Critical thermal maximum (CTM) was evaluated for the adult black rockfish Sebastes schlegeli. Adult black rockfish were acclimated at 24°C, and then exposed to temperatures from 24 to 33°C. The oxygen consumption rates (OCR) were measured using an automatic intermittent-flow-respirometer (AIFR) during the exposure period (from 119.3- to 143.5-h). Black rockfish were kept in constant darkness and subjected to gradual temperature increase (1°C 12 h-1). The OCR increased from 94.5 to 214.2 ml O2 kg-1 h-1 as the temperature rose from 24°C up to 29.4 - 30.9°C. The OCR abruptly increased again thereafter, reaching of 245.8 - 412.7 ml O2 kg-1 h-1 at 32°C. This study suggests that the CTM for adult black rockfish is 29.4 - 30.9°C under the condition of the increasing temperature rate at 1°C 12 h-1 following the acclimation at 24°C.
ISSN
2234-1749
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5493
DOI
10.5657/fas.2003.6.2.059
Bibliographic Citation
Fisheries and Aquatic Sciences, v.6, no.2, pp.59 - 65, 2003
Publisher
한국수산과학회
Keywords
Sebastes schlegeli; Black rockfish; Critical thermal maximum; CTM; Oxygen consumption.
Type
Article
Language
English
Publisher
한국수산과학회
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