Aerobic scope measurements of fishes in an era of climate change: respirometry, relevance and recommendations
Clark, TD and Sandblom, E and Jutfelt, F, Aerobic scope measurements of fishes in an era of climate change: respirometry, relevance and recommendations, Journal of Experimental Biology, 216 pp. 2771-2782. ISSN 0022-0949 (2013) [Refereed Article]
Measurements of aerobic scope [the difference between minimum and maximum oxygen consumption rate ( and , respectively)] are increasing in prevalence as a tool to address questions relating to fish ecology and the effects of climate
change. However, there are underlying issues regarding the array of methods used to measure aerobic scope across studies and
species. In an attempt to enhance quality control before the diversity of issues becomes too great to remedy, this paper outlines
common techniques and pitfalls associated with measurements of , and aerobic scope across species and under different experimental conditions. Additionally, we provide a brief critique of
the oxygen- and capacity-limited thermal tolerance (OCLTT) hypothesis, a concept that is intricately dependent on aerobic
scope measurements and is spreading wildly throughout the literature despite little evidence for its general applicability.
It is the intention of this paper to encourage transparency and accuracy in future studies that measure the aerobic metabolism
of fishes, and to highlight the fundamental issues with assuming broad relevance of the OCLTT hypothesis.
aerobic metabolism, excess post-exercise oxygen consumption, EPOC, global warming, oxygen- and capacity-limited thermal tolerance, oxygen consumption rate, oxygen uptake, specific dynamic action