Effects of water temperature changes on the endogenous and exogenous rhythms of oxygen consumption in glass eels Anguilla japonica
SCIE
SCOPUS
Cited 12 time in
WEB OF SCIENCE
Cited 13 time in
Scopus
-
Title
- Effects of water temperature changes on the endogenous and exogenous rhythms of oxygen consumption in glass eels Anguilla japonica
-
Author(s)
- Kim, WS; Yoon, SJ; Moon, HT; Lee, TW
- KIOST Author(s)
- Yoon, Sung Jin(윤성진)
-
Alternative Author(s)
- 김완수; 윤성진
-
Publication Year
- 2002
-
Abstract
- The oxygen consumption rate (OCR) of glass eels Anguilla japonica was measured to determine the effects of water temperature changes on their endogenous and exogenous rhythms. Glass eels were exposed to different water-temperature patterns during simulated 12, 14 and 24 h cycles. The OCR of wild glass eels, freshly collected from estuaries, exhibited a clear endogenous circatidal rhythm while kept in constant darkness at 15 +/- 0.1degreesC. However, if the temperature was varied, the glass eels OCR coincided with the gradually increasing water temperature (Deltat = 1degreesC per 12 or 24 h) in the experimental chamber. This minor variation in water temperature (Deltat = 1degreesC per 12 or 24 h) was significant enough to affect the rhythmicity of the glass eels' OCR. When the glass eels were exposed to a cyclic increase or decrease in water temperature (1degreesC per 14 h), the OCR peaks displayed a clear rhythmicity at 14 h intervals. The results indicate that the glass eels' OCR is controlled not only by an endogenous circatidal rhythm, but also by exogenous rhythms related to small environmental changes, such as water temperature changes of as little as 1degreesC. The possible mechanisms underlying these temperature responses are discussed and the implications of the findings for the eco-physiology and metabolic activity rhythms of glass eels are highlighted.
-
ISSN
- 0171-8630
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/5794
-
DOI
- 10.3354/meps243209
-
Bibliographic Citation
- MARINE ECOLOGY PROGRESS SERIES, v.243, pp.209 - 216, 2002
-
Publisher
- INTER-RESEARCH
-
Subject
- RUDITAPES-PHILIPPINARUM BIVALVIA; DAILY GROWTH INCREMENTS; HYDROSTATIC-PRESSURE; JAPANESE EEL; MANILA CLAM; OTOLITH; LEPTOCEPHALI; FISH; VALIDATION; VENERIDAE
-
Keywords
- glass eel; Anguilla japonica; oxygen consumption; temperature; rhythm; endogenous; exogenous
-
Type
- Article
-
Language
- English
-
Document Type
- Article
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.