Live-fast-die-young: Carryover effects of heatwave-exposed adult urchins on the development of the next generation.

ABSTRACT: With rising ocean temperatures, extreme weather events such as marine heatwaves (MHWs) are increasing in frequency and duration, pushing marine life beyond their physiological limits. The potential to respond to extreme conditions through physiological acclimatization, and pass on resistance to the next generation, fundamentally depends on the capacity of an organism to cope within their thermal tolerance limits. To elucidate whether heat conditioning of parents could benefit offspring development, we exposed adult sea urchins (Heliocidaris erythrogramma) to ambient summer (23°C), moderate (25°C) or strong (26°C) MHW conditions for 10 days. Offspring were then reared at constant temperature along a thermal gradient (22-28°C) and development was tracked to the 14-day juvenile stage. Progeny

SUBMITTER: Minuti JJ 

PROVIDER: S-EPMC9805142 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature