Do you remember? Within-generation and transgenerational heat stress memory of recurring marine heatwaves in threespine stickleback

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2040)

Published: Feb. 1, 2025

Marine heatwaves can have major and lasting effects on organism physiology species persistence. Such temperature extremes are increasing in frequency, with consecutive heatwave events already occurring within the lifetime of many organisms. Heat stress memory (thermal priming) by individuals is a potential within-generation response to cope recurring marine heatwaves. However, whether this form biological be inherited across generations not well known. We used three-generation experiment investigate individual transgenerational single fitness-related traits using stickleback (Gasterosteus aculeatus) as model species. exposed adults (both sexes) assessed female reproductive output both parent offspring generation, survival, growth behaviour establish holistic picture ectothermic fish. Exposure single, extreme lowered output, decreased exploratory behaviour, impeded capacity respond further thermal reduced long-term survival. prior experience (heat memory) mitigated some these at an (growth) (fecundity) level, indicating that experiencing frequency part ongoing climate change may better than previously thought.

Language: Английский

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Ecophysiological responses to heat waves in the marine intertidal zone

Journal of Experimental Biology, Journal Year: 2025, Volume and Issue: 228(2)

Published: Jan. 15, 2025

One notable consequence of climate change is an increase in the frequency, scale and severity heat waves. Heat waves terrestrial habitats (atmospheric waves, AHW) marine (marine MHW) have received considerable attention as environmental forces that impact organisms, populations whole ecosystems. Only one ecosystem, intertidal zone, experiences both MHWs AHWs. In this Review, we outline range responses zone organisms exhibit response to We begin by examining drivers thermal maxima develop a simple model daily maximum temperatures based on publicly available tide solar radiation models, compare it with logged, under-rock temperature data at site. then summarize experimental ecological studies how ecosystems respond across dimensions biotic response. Additional paid impacts extreme cellular physiology, including oxidative stress thermally induced mitochondrial overdrive dysfunction. examine energetic consequences these mechanisms they shift organismal traits, growth, reproduction immune function. conclude considering important future directions for improving organisms.

Language: Английский

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Kelp-associated variability in seawater chemistry during a marine heatwave event connects to transgenerational effects in the purple urchin, Strongylocentrotus purpuratus

Marine Ecology Progress Series, Journal Year: 2024, Volume and Issue: 733, P. 59 - 77

Published: Jan. 17, 2024

Giant kelp Macrocystis pyrifera provides the foundation for immense biodiversity on coast of California, USA. Kelp forests can change seawater retention time, altering water chemistry, including pH and dissolved oxygen (DO), as well magnitude predictability variability in same properties. Environmental heterogeneity across space time could drive organismal performance processes such transgenerational plasticity (TGP), where parental experience modifies offspring phenotype, potentially conferring tolerance to future environmental stress. We monitored by deploying temperature, pH, DO sensors inside outside a temperate forest Santa Barbara Channel (SBC) throughout gametogenesis period key herbivore, purple urchin Strongylocentrotus purpuratus . Over 6 mo period, temperature were slightly elevated forest, accompanied more predictable, low-frequency relative outside. Adult S. conditioned spanning gametogenesis. The urchins spawned their larvae raised under high (1053 µatm) low p CO 2 (435 at 15°C laboratory assess physiological response maternal developmental environments. Larvae susceptible acute thermal stress; however, within each larval treatment, progeny from outside-conditioned mothers had 0.4°C higher lethal (LT 50 ). Our results indicate that abiotic factors associated with have effects field, interactions between factors, will impact local marine heatwaves upwelling evolves climate change.

Language: Английский

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Marine heatwave temperatures enhance larval performance but are meditated by paternal thermal history and inter-individual differences in the purple sea urchin, Strongylocentrotus purpuratus

Frontiers in Physiology, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 4, 2023

Marine heatwave (MHW) events, characterized by periods of anomalous temperatures, are an increasingly prevalent threat to coastal marine ecosystems. Given the seasonal phenology MHWs, full extent their biological consequences may depend on how these thermal stress events align with organism’s reproductive cycle. In organisms more complex life cycles (e.g., many invertebrate species) alignment adult and larval environments be important factor determining offspring success, setting stage for MHW influence reproduction development in situ . Here, MHW-like temperatures early California purple sea urchin, Strongylocentrotus purpuratus , were explored within context paternal history. Based temperature data collected during seen Southern from 2014–2020, urchins acclimated either or non-MHW 28 days before sperm was used produce embryos that subsequently raised under varying conditions. Once reached stage, impact assessed two aspects performance: size tolerance. Exposure elevated resulted larger, thermally tolerant larvae, further influences identity history, respectively. The exposure had additional positive benefits tolerance, but this tolerance significantly decreased when experience mismatched. As highest recorded past have occurred gametogenesis kelp forest benthic species, such as parental mediated impacts represent drivers future recruitment population composition species.

Language: Английский

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Intergenerational effects of ocean temperature variation: Early life benefits are short-lived in threespine stickleback

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(8), P. e0307030 - e0307030

Published: Aug. 2, 2024

Current climate change models predict an increase in temperature variability and extreme events such as heatwaves, organisms need to cope with consequent changes environmental variation. Non-genetic inheritance mechanisms can enable parental generations prime their offspring’s abilities acclimate change–but they may also be deleterious. When parents are exposed predictable environments, intergenerational plasticity lead better offspring trait performance matching environments. Alternatively, variable or unpredictable environments use plastic bet-hedging strategies adjust the phenotypic variance among offspring. Here, we used a model species, threespine stickleback ( Gasterosteus aculeatus ), test whether putatively adaptive effects occur response shifts variation well mean, employ increasing We full-factorial, split-clutch experiment three regimes: constant, natural variation, increased show that within-generation exposure reduces growth of offspring, but having were during gametogenesis offset some early-life negative effects. However, these mitigating do not appear persist later life. found no indication mothers plastically altered (egg size clutch size) lower inter-individual juvenile fish morphology imply presence conservative populations. Overall, our experiment, had limited on fitness-related traits. Natural levels promoted potentially early life development, under more challenging conditions associated effect was lost.

Language: Английский

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The 2024 roadmap for understanding marine species’ resilience in a changing ocean

Advances in marine biology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 9

Published: Jan. 1, 2024

Language: Английский

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Temperature influences immune cell development and body length in purple sea urchin larvae

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 202, P. 106705 - 106705

Published: Aug. 24, 2024

Language: Английский

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Transgenerational effects alter the fitness consequences and genetic architecture of phenotypic plasticity and its regulatory pathways

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 11, 2024

Abstract Parental exposure to environmental stress can influence phenotypic plasticity by offspring developing under that stressor. Transgenerational effects may also reshape natural selection on developmental influencing its fitness consequences and expression of genetic variation. We tested these hypotheses in the purple sea urchin Strongylocentrotus purpuratus , an invertebrate exposed coastal upwelling (periods low temperature pH impacting biomineralization performance). conditioned parents larvae experimental integrated RNA-seq, phenotyping body size biomineralization, measured fitness-correlated traits a quantitative experiment. Larvae induced widespread differential (DE), decreased reduced size. detected benefits for increased indicative adaptive plasticity, but only when were spawned from upwelling. Larval DE was largely associated with plasticity. Negative correlation abundant between genes However, correlations significantly more positive upwelling-exposed parents. These results show transgenerational modify landscape architecture regulatory pathways.

Language: Английский

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Coastal marine heatwaves in the Santa Barbara Channel: decadal trends and ecological implications

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Dec. 16, 2024

Marine heatwaves (MHWs) are of increasing concern due to the emerging ecological and socioeconomic impacts on coastal ecosystems. Leveraging data Santa Barbara Coastal Long-Term Ecological Research project, we analyzed MHW event metrics observed in kelp forest ecosystem across Channel, CA, USA. Not only was there a significant positive trend number MHWs recorded, their duration intensity were also over time. detected year-round, suggesting that marine organisms have exposure risks regardless phenology. Exposure at one life history stage could legacy effect subsequent stages, implying little temporal refuge. In contrast, mooring revealed near-surface bottom events not necessarily coupled even less than 15 m. Such spatial variation might provide temporary refuge for mobile species. These observations highlight importance depth-stratified, long-term monitoring understand spatio-temporal stress communities.

Language: Английский

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