Acute warming tolerance (CT max ) in zebrafish ( Danio rerio ) appears unaffected by changes in water salinity

被引：1
|
作者：
Asheim, Eirik R. [1 ,2 ,3 ]
Andreassen, Anna H. [3 ]
Morgan, Rachael [3 ,4 ]
Silvestre, Mireia [3 ]
Jutfelt, Fredrik [3 ,5 ]
机构：
[1] Univ Helsinki, Inst Biotechnol, Helsinki Inst Life Sci HiLIFE, Helsinki, Finland
[2] Univ Helsinki, Fac Biol & Environm Sci, Organismal & Evolutionary Biol Res Programme, Helsinki, Finland
[3] Norwegian Univ Sci & Technol, Dept Biol, Trondheim, Norway
[4] Univ Bergen, Dept Biol Sci, Bergen, Norway
[5] Univ Gothenburg, Fac Sci, Dept Biol & Environm Sci, Gothenburg, Sweden
来源：
PEERJ | 2024年 / 12卷
关键词：
Zebrafish; Danio rerio; CT max; Thermal tolerance; Salinity; CRITICAL THERMAL MAXIMUM; CLIMATE-CHANGE; PHYSIOLOGICAL-MECHANISMS; DROUGHT IMPACTS; TEMPERATURE; FISH; ACCLIMATION; ESTUARIES;
D O I：
10.7717/peerj.17343
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Tolerance against acute warming is an essential trait that can determine how organisms cope during heat waves, yet the mechanisms underlying it remain elusive. Water salinity has previously been suggested to modulate warming tolerance in fish and may therefore provide clues towards these limiting mechanisms. Here, using the critical thermal maximum (CTmax) test, we investigated whether short (2 hours) and long (10 days) term exposure to different water salinities (2 hours: 0-5 ppt, 10 days: 0-3 ppt) affected acute warming tolerance in zebrafish (N = 263). We found that water salinity did not affect the warming tolerance of zebrafish at either time point, indicating that salinity does not affect the mechanism limiting acute warming tolerance in zebrafish at these salinity ranges, and that natural fluctuations in salinity levels might not have a large impact on acute warming tolerance in wild zebrafish.
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