ArticleThe Journal of experimental biology2024
Hyperoxia does not improve the acute upper thermal tolerance of a tropical marine fish (Lutjanus apodus).
Article in The Journal of experimental biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Oxygen uptake of rainbow trout during acute warming: effects of oxygen supersaturation and aerobic exercise.The Journal of experimental biology · 2026Article
- Increased heart rate and blood oxygen extraction are key to the ability of schoolmaster snapper (Lutjanus apodus) to swim maximally at high temperatures.The Journal of experimental biology · 2026Article
- The relevance and application of measures of thermal tolerance to fish ecology, conservation and aquaculture.Conservation physiology · 2026Article
- Oxygen supersaturation has negligible effects on warming tolerance across diverse aquatic ectotherms.PLoS biology · 2025Article
- Near-maximally swimming schoolmaster snapper (Lutjanus apodus) have a greater metabolic capacity, and slightly lower thermal tolerance, than when tested at rest.The Journal of experimental biology · 2024Article
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Authors and funding
3 authors.
Funding
Abstract
Fish can experience hyperoxia in shallow environments due to photosynthetic activity and this has been suggested to provide them with a metabolic refuge during acute warming. However, this hypothesis has never been tested on a tropical marine species. Thus, we fitted 29°C-acclimated wild schoolmaster snapper (Lutjanus apodus; a species known to experience diel hyperoxia in mangrove creeks and coastal waters) with Transonic® flow probes and exposed them to an acute increase in temperature (at 1°C h-1) in respirometers under normoxia and hyperoxia (150% air saturation), until their critical thermal maximum (CTmax). The CTmax of both groups was ∼39°C, and no differences in maximum cardiac function were recorded as the fish were warmed. However, temperature-induced factorial aerobic scope was significantly greater in fish tested under hyperoxia. These data suggest that hyperoxia will not protect coastal tropical fish species during marine heat waves, despite its effects on metabolic scope/capacity.
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