期刊
JOURNAL OF FISH BIOLOGY
卷 92, 期 2, 页码 487-503出版社
WILEY
DOI: 10.1111/jfb.13530
关键词
critical oxygen level; hypoxia tolerance; metabolic rate; oxygen uptake; thermal tolerance
资金
- Genome Canada Large-Scale Applied Research Project in Natural Resources and the Environment [242RTE]
- Natural Sciences and Engineering Research Council of Canada
- Elizabeth R. Howland Fellowship
This study compared parr from three strains of rainbow trout Oncorhynchus mykiss to examine intraspecific variation in metabolic traits, hypoxia tolerance and upper thermal tolerance in this species. At the strain level, variation in absolute aerobic scope (AAS), critical oxygen level (O-2crit), incipient lethal oxygen saturation (ILOS) and critical thermal maximum (CTmax) generally exhibited consistent differences among the strains, suggesting the possibility of functional associations among these traits. This possibility was further supported at the individual level by a positive correlation between ILOS and O-2crit and a negative correlation between O-2crit and AAS. These results indicate that intraspecific differences in hypoxia tolerance among strains of O. mykiss may be primarily determined by differences in the ability to maintain oxygen uptake in hypoxia and that variation in aerobic scope in normoxia probably plays a role in determining the ability of these fish to sustain metabolism aerobically as water oxygen saturation is reduced.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据