Assessing sublethal effects of ultraviolet radiation in juvenile rainbow trout (Oncorhynchus mykiss)

被引：30
|
作者：
Alemanni, ME [1 ]
Lozada, M [1 ]
Zagarese, HE [1 ]
机构：
[1] Univ Nacl Comahue, UP Univ, Ctr Reg Univ Bariloche, Lab Fotobiol, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
来源：
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES | 2003年 / 2卷 / 08期
关键词：
D O I：
10.1039/b301564e
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
This paper presents a method for assessing sublethal effects of ultraviolet radiation in fish. The method is based on the assumption that UV-B exposure is stressful to fish. We measured oxygen consumption in UV-B-irradiated rainbow trout juveniles using a UV-transparent respirometer chamber. In addition, we simultaneously monitored fish behavior by videotaping. We found a direct relationship between UV-B irradiance and the percentage increase in oxygen consumption. Increased swimming activity and restless behavior were also noted under UV-B irradiation. The actual mechanisms by which fish perceive UV radiation and a behavioral reaction is triggered are unknown. Based on the present study, a response to UV-A irradiation cannot be ruled out.
引用
收藏
页码：867 / 870
页数：4
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