Sheldon Rey Boco
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sheldonrey.bsky.social
Sheldon Rey Boco
@sheldonrey.bsky.social
4 followers 18 following 0 posts
| PhD 🪼🦞🪸 🌊 🇵🇭in 🇦🇺 🖤💛❤️ posts = my own
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Reposted by Sheldon Rey Boco
plosbiology.org
Oxygen limitation is considered a key mechanism of #ThermalTolerance. @dianasmadeira.bsky.social explores how a @plosbiology.org study challenges this idea, showing minimal protective effects of O2 supersaturation in heat-stressed #aquatic #ectotherms 🧪 Paper: plos.io/43hzMQa Primer: plos.io/3XeUtbS
The effects of temperature on organismal performance are depicted using thermal performance curves, where performance is greatest at the optimal temperature and starts to decrease toward cooler or warmer temperatures, reflecting the thermal window (tolerable range of temperatures) of the species. Briefly, the Oxygen and Capacity Limited Thermal Tolerance hypothesis proposes that oxygen limitation explains the performance decline at high temperatures and sets the first boundary for thermal limits across ectotherms. This is due to a mismatch between the oxygen demand of the organism and the capacity of the cardiorespiratory system to supply oxygen to tissues when the organism is under warming. This concept is central to predict species responses to warming. As oxygen supersaturation in water has been shown to alleviate oxygen supply limitations by increasing maximum rates of oxygen transport in blood, Raby and colleagues (2025) tested the effects of oxygen supersaturation on thermal tolerance across 14 aquatic species. The authors found that it had negligible effects on upper thermal limits, challenging the oxygen limitation hypothesis as a universal mechanism underpinning thermal tolerance of aquatic ectotherms. The authors highlight that oxygen supersaturation in water, a naturally occurring phenomenon in shallow waters, may not protect aquatic species from the effects of extreme heat.
November 6, 2025 at 1:55 PM
Reposted by Sheldon Rey Boco
rasmusern.bsky.social
Convert your FireSting-O2 meter from @pyroscience.bsky.social into a O2 regulator for less than €500

My paper with @jutfelt.bsky.social in @conphysjournal.bsky.social describes the OptoReg system: a simple and inexpensive solution for regulating water oxygen.

Funded by EU’s H2020, MSCA (No 893895)
December 21, 2025 at 10:23 AM
Reposted by Sheldon Rey Boco
ecoinvasions.bsky.social
No paper from me or my lab will ever be submitted to an MDPI journal - including any of their superfluous "special issues". I will very rarely (if ever) cite MDPI papers. And I will never review for them. deevybee.blogspot.com/2024/08/gues...

The same goes for FrontiersIn journals, among others.
December 16, 2025 at 4:21 AM