'Aerobic scope protection' reduces ectotherm growth under warming. (4th June 2021)
- Record Type:
- Journal Article
- Title:
- 'Aerobic scope protection' reduces ectotherm growth under warming. (4th June 2021)
- Main Title:
- 'Aerobic scope protection' reduces ectotherm growth under warming
- Authors:
- Jutfelt, Fredrik
Norin, Tommy
Åsheim, Eirik R.
Rowsey, Lauren E.
Andreassen, Anna H.
Morgan, Rachael
Clark, Timothy D.
Speers‐Roesch, Ben - Abstract:
- Abstract: Temperature has a dramatic effect on the physiology of ectothermic animals, impacting most of their biology. When temperatures increase above optimal for an animal, their growth gradually decreases. The main mechanism behind this growth rate reduction is unknown. Here, we suggest the 'aerobic scope protection' hypothesis as a mechanistic explanation for the reduction in growth. After a meal, metabolic rate, and hence oxygen consumption rate, transiently increase in a process called specific dynamic action (SDA). At warmer temperatures, the SDA response usually becomes temporally compressed, leading to a higher peak oxygen consumption rate. This peak in oxygen consumption rate risks taking up much of the animal's aerobic scope (the difference between resting and maximum rates of oxygen consumption), which would leave little residual aerobic scope for other aerobic functions. We propose that water‐breathing ectothermic animals will protect their postprandial residual aerobic scope by reducing meal sizes in order to regulate the peak SDA response during times of warming, leading to reductions in growth. This hypothesis is consistent with the published literature on fishes, and we provide predictions that can be tested. A free Plain Language Summary can be found within the Supporting Information of this article. Abstract : A free Plain Language Summary can be found within the Supporting Information of this article.
- Is Part Of:
- Functional ecology. Volume 35:Number 7(2021)
- Journal:
- Functional ecology
- Issue:
- Volume 35:Number 7(2021)
- Issue Display:
- Volume 35, Issue 7 (2021)
- Year:
- 2021
- Volume:
- 35
- Issue:
- 7
- Issue Sort Value:
- 2021-0035-0007-0000
- Page Start:
- 1397
- Page End:
- 1407
- Publication Date:
- 2021-06-04
- Subjects:
- climate change -- ecophysiology -- fish physiology -- thermal biology -- thermal performance
Ecology -- Periodicals
574.505 - Journal URLs:
- http://www.blackwell-synergy.com/member/institutions/issuelist.asp?journal=fecoe5 ↗
http://www.blackwellpublishing.com/journal.asp?ref=0269-8463&site=1 ↗
http://www.jstor.org/journals/02698463.html ↗
http://besjournals.onlinelibrary.wiley.com/hub/journal/10.1111/(ISSN)1365-2435/ ↗
http://onlinelibrary.wiley.com/ ↗
http://firstsearch.oclc.org ↗
http://firstsearch.oclc.org/journal=0269-8463;screen=info;ECOIP ↗ - DOI:
- 10.1111/1365-2435.13811 ↗
- Languages:
- English
- ISSNs:
- 0269-8463
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4055.616000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 26753.xml