Changes in circadian parameters of humbug damselfish, Dascyllus aruanus according to lunar phase shifts in Micronesia
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Title
- Changes in circadian parameters of humbug damselfish, Dascyllus aruanus according to lunar phase shifts in Micronesia
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Author(s)
- Choi, Ji Yong; Kim, Na Na; Choi, Young-Ung; Choi, Cheol Young
- KIOST Author(s)
- Choi, Young Ung(최영웅)
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Alternative Author(s)
- 김나나; 최영웅
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Publication Year
- 2017
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Abstract
- The objectives of this study were to test the nighttime effects of the lunar phase on circadian rhythm in the humbug damselfish, Dascyllus aruanus. We measured moonlight intensities at eight different phases across the lunar cycle. At each lunar phase, the circadian rhythm was evaluated by measuring the clock genes cryptochrome 1 and period 2. In addition, we measured arylalkylamine N-acetyltransferase 2 (AANAT2), melatonin and melatonin receptor 1 (MT-R1). The moonlight intensity was highest at full moon and lowest during the waning crescent. Clock gene expression was highest during the full moon compared to the other phases. By contrast, the plasma concentrations of AANAT2 and melatonin and the MT-R1 mRNA expression were highest during the full moon phase. Our results suggest that moonlight affects circadian rhythm patterns in the humbug damselfish. There is a need to investigate potential other physiological effects of lunar phase shifts.
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ISSN
- 0929-1016
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/40369
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DOI
- 10.1080/09291016.2016.1275395
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Bibliographic Citation
- BIOLOGICAL RHYTHM RESEARCH, v.48, no.3, pp.475 - 483, 2017
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Publisher
- TAYLOR & FRANCIS LTD
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Subject
- ARYLALKYLAMINE N-ACETYLTRANSFERASE; PINEAL-GLAND; MELATONIN; LIGHT; MOONLIGHT; RECEPTORS; PERIOD2; RHYTHMS; GENE
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Keywords
- AANAT2; circadian rhythms; clock genes; humbug damselfish; lunar phase; melatonin
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Type
- Article
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Language
- English
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Document Type
- Article
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