France

The increasing frequency and intensity of marine heatwaves (MHW) and simultaneous water deoxygenation (i.e., hypoxia) resulting from anthropogenic climate change is increasingly affecting marine organisms worldwide. These stressors occur throughout the year, and marine organisms may be differentially vulnerable to these events across seasons. While most climate change projections highlight summer maximum temperatures as the greatest threat to coral reef organisms, this prediction has never been tested. After characterizing local MHWs in Kāneʻohe Bay, HI, we compared the capacity of representative Hawaiian reef fish of commercial importance—the convict tang (Acanthurus triostegus; manini) —to tolerate the combined effects of acute thermal stress and reduced oxygen availability that occur during MHWs between seasons. While marine heatwaves did not significantly differ in heating rate, duration, or warming anomaly (i.e., temperature increase above the seasonally varying threshold) between summer and winter, the metabolic response of A. triostegus significantly varied between seasons. We found winter MHWs had a stronger effect on thermal sensitivity of standard and maximum metabolic rate with higher Q10 coefficients (i.e., an indicator of thermal stress) during winter MHWs. Hypoxia tolerance did not significantly vary between seasons, but winter MHWs caused a greater reduction in hypoxia tolerance compared to summer, despite the greater absolute temperatures of summer. We discuss the importance of clarifying climate change impacts year-round.

SEB Annual Conference 2022

Seasonal variability in metabolic resilience to environmental stress in a Hawaiian reef fish

Discover the art of creating extraordinary science at SEB’s Annual Conference at Le Corum Conference Center     in Montpellier, France from 5 to  8 July 2022.

SEB’s Annual Conference is celebrated for creating the perfect composition of research, new discoveries and collaborative connections. Be creative and innovative by exchanging ideas and knowledge with masters of biology from all over the world.

2022 will find over 1500 experimental biologists from across the globe converging on the third-largest French city near the Mediterranean coast and the fastest-growing city in the country over the past 25 years.
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Please register for the conference by clicking on this link:

https://www.sebiology.org/events/seb-annual-conference-2022/registration.html

The site will be open for registered participants closer to the event.

2022 will find over 1500 experimental biologists from across the globe converging on the third-largest French city near the Mediterranean coast and the fastest-growing city in the country over the past 25 years - Montpellier, France

poster

The influence of environmental and endocrine factors on collagen regulatory pathways in rainbow trout (Oncorhynchus mykiss) cardiac fibroblasts

Nepenthes pitcher plants recombine common patterning processes to create a complex hierarchical epidermis structure

Effective detection of spoilage biomarkers in tomatoes 

Hypoxia lowers cardiac thermal limits in a marine teleost (Girella nigricans)

Developmental Responses to Thermal Stress in the Starlet Sea Anemone

Effects of acute warming on reproducing and non-reproducing polar cod (Boreogadus saida)

Mitonuclear interactions impact responses to metabolic and redox stress at different life stages in Drosophila melanogaster

Mitochondrial fuel selection in birds and mammals: a question of muscular temperature

Hyperactive and synchronized pre-mating behavior of honey bee drones inside the nest

Relationships between tail-beat frequency and swimming speed in free-swimming fishes

https://d3smihljt9218e.cloudfront.net/transcript/41674/subtitle/21739b4f14929e00be04d6a21a4d3488.vtt

English (automatic)

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Seasonal variability in metabolic resilience to environmental stress in a Hawaiian reef fish

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The influence of environmental and endocrine factors on collagen regulatory pathways in rainbow trout (Oncorhynchus mykiss) cardiac fibroblasts

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