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Brain cooling margi...
Brain cooling marginally increases acute upper thermal tolerance in Atlantic cod
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- Jutfelt, Fredrik (författare)
- Norwegian Univ Sci & Technol, Dept Biol, N-7491 Trondheim, Norway
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- Roche, Dominique G. (författare)
- Univ Neuchatel, Inst Biol, Dept Ecoethol, CH-2000 Neuchatel, Switzerland;Carleton Univ, Dept Biol, Ottawa, ON K1S 5B6, Canada;Carleton Univ, Inst Environm & Interdisciplinary Sci, Ottawa, ON K1S 5B6, Canada
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- Clark, Timothy D. (författare)
- Deakin Univ, Sch Life & Environm Sci, Geelong, Vic 3216, Australia
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- Norin, Tommy (författare)
- Tech Univ Denmark, DTU Aqua Natl Inst Aquat Resources, DK-2800 K Lyngby, Denmark
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- Binning, Sandra A. (författare)
- Univ Neuchatel, Inst Biol, Dept Ecoethol, CH-2000 Neuchatel, Switzerland;Univ Montreal, Dept Sci Biol, Montreal, PQ H2V 2S9, Canada
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- Speers-Roesch, Ben (författare)
- Univ New Brunswick, Dept Biol Sci, St John, NB E2L 4L5, Canada
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- Amcoff, Mirjam (författare)
- Stockholms universitet,Zoologiska institutionen,Stockholm Univ, Dept Zool Funct Zoomorphol, S-10691 Stockholm, Sweden
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- Morgan, Rachael (författare)
- Norwegian Univ Sci & Technol, Dept Biol, N-7491 Trondheim, Norway
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- Andreassen, Anna H. (författare)
- Norwegian Univ Sci & Technol, Dept Biol, N-7491 Trondheim, Norway
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- Sundin, Josefin (författare)
- Uppsala universitet,Institutionen för neurovetenskap,Norwegian Univ Sci & Technol, Dept Biol, N-7491 Trondheim, Norway
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(creator_code:org_t)
- 2019-01-01
- 2019
- Engelska.
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Ingår i: Journal of Experimental Biology. - : The Company of Biologists. - 0022-0949 .- 1477-9145. ; 222:19
- Relaterad länk:
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https://jeb.biologis...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Physiological mechanisms determining thermal limits in fishes are debated but remain elusive. It has been hypothesised that motor function loss, observed as loss of equilibrium during acute warming, is due to direct thermal effects on brain neuronal function. To test this, we mounted cooling plates on the heads of Atlantic cod (Gadus morhua) and quantified whether local brain cooling increased whole-organism acute upper thermal tolerance. Brain cooling reduced brain temperature by 2-6 °C below ambient water temperature and increased thermal tolerance by 0.5 and 0.6 °C on average relative to instrumented and uninstrumented controls, respectively, suggesting that direct thermal effects on brain neurons may contribute to setting upper thermal limits in fish. However, the improvement in thermal tolerance with brain cooling was small relative to the difference in brain temperature, demonstrating that other mechanisms (e.g. failure of spinal and peripheral neurons, or muscle) may also contribute to controlling acute thermal tolerance.
Ämnesord
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- Climate change
- Fish
- Global warming
- Oxygen- and capacity-limited thermal tolerance
- OCLTT
- Critical thermal maximum
- CTmax
- Loss of equilibrium
- LOE
- Thermal ramping
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- ref (ämneskategori)
- art (ämneskategori)
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Jutfelt, Fredrik
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Roche, Dominique ...
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Clark, Timothy D ...
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Norin, Tommy
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Binning, Sandra ...
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Speers-Roesch, B ...
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visa fler...
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Amcoff, Mirjam
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Morgan, Rachael
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Andreassen, Anna ...
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Sundin, Josefin
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visa färre...
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Uppsala universitet
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