Journal ArticleDOI
Climate change affects marine fishes through the oxygen limitation of thermal tolerance.
Hans-Otto Pörtner,Rainer Knust +1 more
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TLDR
It is shown in the eelpout, Zoarces viviparus, a bioindicator fish species for environmental monitoring from North and Baltic Seas, that thermally limited oxygen delivery closely matches environmental temperatures beyond which growth performance and abundance decrease, which will be the first process to cause extinction or relocation to cooler waters.Abstract:
A cause-and-effect understanding of climate influences on ecosystems requires evaluation of thermal limits of member species and of their ability to cope with changing temperatures. Laboratory data available for marine fish and invertebrates from various climatic regions led to the hypothesis that, as a unifying principle, a mismatch between the demand for oxygen and the capacity of oxygen supply to tissues is the first mechanism to restrict whole-animal tolerance to thermal extremes. We show in the eelpout, Zoarces viviparus, a bioindicator fish species for environmental monitoring from North and Baltic Seas (Helcom), that thermally limited oxygen delivery closely matches environmental temperatures beyond which growth performance and abundance decrease. Decrements in aerobic performance in warming seas will thus be the first process to cause extinction or relocation to cooler waters.read more
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Journal ArticleDOI
Impacts of climate warming on terrestrial ectotherms across latitude.
Curtis Deutsch,Joshua J. Tewksbury,Raymond B. Huey,Kimberly S. Sheldon,Cameron K. Ghalambor,David C. Haak,Paul R. Martin,Paul R. Martin +7 more
TL;DR: The results show that warming in the tropics, although relatively small in magnitude, is likely to have the most deleterious consequences because tropical insects are relatively sensitive to temperature change and are currently living very close to their optimal temperature, so that warming may even enhance their fitness.
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Climate change and evolutionary adaptation
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Climate Change Impacts on Marine Ecosystems
Scott C. Doney,Mary Ruckelshaus,J. Emmett Duffy,James P. Barry,Francis Chan,Chad A. English,Heather M. Galindo,Jacqueline M. Grebmeier,Anne B. Hollowed,Nancy Knowlton,Jeffrey J. Polovina,Nancy N. Rabalais,William J. Sydeman,Lynne D. Talley +13 more
TL;DR: In marine ecosystems, rising atmospheric CO2 and climate change are associated with concurrent shifts in temperature, circulation, stratification, nutrient input, oxygen content, and ocean acidification, with potentially wide-ranging biological effects.
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Physiology and Climate Change
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The physiology of climate change: how potentials for acclimatization and genetic adaptation will determine 'winners' and 'losers'.
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References
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Journal ArticleDOI
Climate Change and Distribution Shifts in Marine Fishes
TL;DR: It is shown that the distributions of both exploited and nonexploited North Sea fishes have responded markedly to recent increases in sea temperature, with nearly two-thirds of species shifting in mean latitude or depth or both over 25 years.
Journal Article
Size-selective mortality in the juvenile stage of teleost fishes : A review
TL;DR: This review evaluates field and laboratory studies that have examined size-based differences in survival, with emphasis on the juvenile stage of teleost fishes, and results in general support the bigger is better hypothesis, although a number of examples indicate non-selective mortality with no obvious size advantages.
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Plankton effect on cod recruitment in the North Sea.
TL;DR: It is concluded that rising temperature since the mid-1980s has modified the plankton ecosystem in a way that reduces the survival of young cod.
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Climate variations and the physiological basis of temperature dependent biogeography: systemic to molecular hierarchy of thermal tolerance in animals.
TL;DR: The present study suggests that the capacity of oxygen delivery is set to a level just sufficient to meet maximum oxygen demand between the average highs and lows of environmental temperatures.
Journal ArticleDOI
Climate change and temperature-dependent biogeography: oxygen limitation of thermal tolerance in animals.
TL;DR: The capacity of oxygen delivery matches full aerobic scope only within the thermal optimum and at temperatures outside this range, only time-limited survival is supported by residual aerobic scope, then anaerobic metabolism and finally molecular protection by heat shock proteins and antioxidative defence.