Ultraviolet B radiation alters movement and thermal selection of zebrafish (Danio rerio)

Seebacher, Frank, Kazerouni, Ensiyeh Ghanizadeh and Franklin, Craig E. (2016) Ultraviolet B radiation alters movement and thermal selection of zebrafish (Danio rerio). Biology Letters, 12 8: . doi:10.1098/rsbl.2016.0258


Author Seebacher, Frank
Kazerouni, Ensiyeh Ghanizadeh
Franklin, Craig E.
Title Ultraviolet B radiation alters movement and thermal selection of zebrafish (Danio rerio)
Formatted title
Ultraviolet B radiation alters movement and thermal selection of zebrafish (Danio rerio)
Journal name Biology Letters   Check publisher's open access policy
ISSN 1744-957X
1744-9561
Publication date 2016-08-01
Sub-type Article (original research)
DOI 10.1098/rsbl.2016.0258
Open Access Status Not yet assessed
Volume 12
Issue 8
Total pages 4
Place of publication London, United Kingdom
Publisher The Royal Society Publishing
Language eng
Formatted abstract
Temperature and ultraviolet B (UV-B) interact in causing cellular damage and impairing locomotor performance. Here, we test the hypothesis that movement and thermal selection of zebrafish (Danio rerio) change in the presence of UV-B, and in particular, that fish which were chronically exposed to UV-B avoid high and low temperature extremes to maximize activities of antioxidant enzymes. Fish chronically (two to three weeks) exposed to UV-B had increased reactive oxygen species (ROS)-induced damage to proteins and membranes, and reduced swimming performance at high (more than 26°C) temperatures. In an open field arena with a thermal gradient, chronically exposed fish avoided high and low temperature extremes compared with control fish. Additionally, both control and chronically exposed fish showed slower voluntary swimming speeds in the presence of UV-B. We suggest that in the presence of UV-B fish may reduce muscular activity to minimize intrinsic ROS production. Our data show that the interaction between UV-B and temperature determines movement and microhabitat selection of fish, which is therefore of ecological importance particularly in anthropogenically modified environments.
Keyword Locomotion
Microhabitat selection
Reactive oxygen species
Thermoregulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Biological Sciences Publications
 
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