Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada.
Department of Biological Sciences, University of New Brunswick, Saint John, New Brunswick, Canada.
J Fish Biol. 2021 Jun;98(6):1524-1535. doi: 10.1111/jfb.14655. Epub 2021 Feb 4.
Freshwater fish face a variety of spatiotemporal thermal challenges throughout their life. On a broad scale, temperature is an important driver of physiological, behavioural and ecological patterns and ultimately affects populations and overall distribution. These broad patterns are partly underpinned by the small-scale local effects of temperature on individuals within the population. Climate change is increasing the range of daily thermal variation in most freshwater ecosystems, altering behaviour and performance of resident fishes. The aim of this review is understanding how daily thermal variation in temperate rivers affects individual fish physiology, behaviour and overall performance. The following are highlighted in this study: (a) the physical characteristics of rivers that can either buffer or exacerbate thermal variability, (b) the effects of thermal variability on growth and metabolism, (c) the approaches for quantifying thermal variation and thermal stress and (d) how fish may acclimatize or adapt to our changing climate.
淡水鱼在其一生中面临着各种时空热挑战。从广泛意义上讲，温度是生理、行为和生态模式的重要驱动因素，最终影响到种群和整体分布。这些广泛的模式部分是由种群中个体的小尺度局部温度效应所支撑的。气候变化正在增加大多数淡水生态系统中每日热变化的范围，改变了当地鱼类的行为和表现。本综述旨在了解温带河流中每日热变化如何影响个体鱼类的生理、行为和整体表现。本研究强调了以下几点：(a) 河流的物理特征可以缓冲或加剧热变异性，(b) 热变异性对生长和代谢的影响，(c) 量化热变化和热应激的方法，以及 (d) 鱼类如何适应或适应我们不断变化的气候。
