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

页码：867 / 870

页数：4