Effects of warming rate, acclimation temperature and ontogeny on the critical thermal maximum of temperate marine fish larvae.
Effects of warming rate, acclimation temperature and ontogeny on the critical thermal maximum of temperate marine fish larvae.
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DOI：
10.1371/journal.pone.0179928
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Peck MA
中科院分区：
文献类型：
--
作者：
Moyano M;Candebat C;Ruhbaum Y;Álvarez-Fernández S;Claireaux G;Zambonino-Infante JL;Peck MA
大多数关于鱼类耐热性的研究是在幼鱼和成鱼上进行的，而关于幼体的资料有限，这一阶段的可耐受温度范围可能特别窄。此外，以前关于海洋和淡水鱼幼体温度极限的研究（本文审查了53项研究）采用了广泛的方法（例如静态或动态方法，不同的暴露时间），因此很难在不同分类群之间进行比较。采用动态升温法（ramping assay）测定了大西洋鲱鱼（Clupea harengus）和欧洲鲈鱼（Dicentrarchus labrax）仔鱼的临界最高温（CTmax），并对升温速率（0.5 ~ 9°C h-1）和驯化温度的影响进行了评估。青鱼幼虫的CTmax（222个个体幼虫中的最低值和最高值，13.1-27.0°C）低于鲈鱼（90个个体幼虫中的最低值和最高值，24.2-34.3°C）。在更快的升温速度，幼虫CTmax显着增加鲱鱼，而没有观察到的影响。更高的驯化温度导致鲱鱼幼虫的CTmax更高（增加2.7 ± 0.9°C），在较低的升温速率下增加更明显。建议对升温速率的影响进行预试验。我们对这两种温带海洋鱼类的研究结果表明，使用3-6°C h-1的升温速率：CTmax在持续时间相对较短的试验中最高，这与对较大鱼类的研究结果相同。此外，在鲱鱼幼虫中观察到时间依赖性的热耐受性，其中在暴露于>18°C的温度下0.5小时或24小时之间的热上限中观察到高达8°C的差异。本研究构成了第一步，为测量仔鱼的耐热性的标准协议。
Most of the thermal tolerance studies on fish have been performed on juveniles and adults, whereas limited information is available for larvae, a stage which may have a particularly narrow range in tolerable temperatures. Moreover, previous studies on thermal limits for marine and freshwater fish larvae (53 studies reviewed here) applied a wide range of methodologies (e.g. the static or dynamic method, different exposure times), making it challenging to compare across taxa. We measured the Critical Thermal Maximum (CTmax) of Atlantic herring (Clupea harengus) and European seabass (Dicentrarchus labrax) larvae using the dynamic method (ramping assay) and assessed the effect of warming rate (0.5 to 9°C h-1) and acclimation temperature. The larvae of herring had a lower CTmax (lowest and highest values among 222 individual larvae, 13.1–27.0°C) than seabass (lowest and highest values among 90 individual larvae, 24.2–34.3°C). At faster rates of warming, larval CTmax significantly increased in herring, whereas no effect was observed in seabass. Higher acclimation temperatures led to higher CTmax in herring larvae (2.7 ± 0.9°C increase) with increases more pronounced at lower warming rates. Pre-trials testing the effects of warming rate are recommended. Our results for these two temperate marine fishes suggest using a warming rate of 3–6°C h-1: CTmax is highest in trials of relatively short duration, as has been suggested for larger fish. Additionally, time-dependent thermal tolerance was observed in herring larvae, where a difference of up to 8°C was observed in the upper thermal limit between a 0.5- or 24-h exposure to temperatures >18°C. The present study constitutes a first step towards a standard protocol for measuring thermal tolerance in larval fish.
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DOI：
10.1016/j.cbpa.2012.07.016
发表时间：
2013-01-01
影响因子：
2.3
作者：
Enzor, Laura A.;Zippay, Mackenzie L.;Place, Sean P.
通讯作者：
Place, Sean P.
影响因子：
1.4
作者：
BECKER, CD;GENOWAY, RG
通讯作者：
GENOWAY, RG
影响因子：
2
作者：
Farrell, A. P.
通讯作者：
Farrell, A. P.
影响因子：
2
作者：
Fey, DP
通讯作者：
Fey, DP
DOI：
10.1016/0300-9629(78)90154-8
发表时间：
1978-01-01
影响因子：
2.3
作者：
BONIN, JD;SPOTILA, JR
通讯作者：
SPOTILA, JR