Within- and transgenerational stress legacy effects of ocean acidification on red abalone (Haliotis rufescens) growth and survival ...
Understanding the mechanisms by which individual organisms respond and populations adapt to global climate change is a critical challenge. The role of plasticity and acclimation, within and across generations, may be essential given the pace of change. We investigated plasticity across generations a...
| Main Authors: | , , , , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2023
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.m0cfxpp99 https://datadryad.org/stash/dataset/doi:10.5061/dryad.m0cfxpp99 |
| Summary: | Understanding the mechanisms by which individual organisms respond and populations adapt to global climate change is a critical challenge. The role of plasticity and acclimation, within and across generations, may be essential given the pace of change. We investigated plasticity across generations and life stages in response to ocean acidification (OA), which poses a growing threat to both wild populations and the sustainable aquaculture of shellfish. Most studies of OA on shellfish focus on acute effects, and less is known regarding the longer-term carryover effects that may manifest within or across generations. We assessed these longer-term effects in red abalone (Haliotis rufescens) using a multi-generational split-brood experiment. We spawned adults raised in ambient conditions to create offspring that we then exposed to high pCO2 (1,180 μatm; simulating OA) or low pCO2 (450 μatm; control or ambient conditions) during the first three months of life. We then allowed these animals to reach maturity in ... : We ran a fully crossed factorial, split-brood experiment with a low pCO2 (mean condition: 450 matm, pHT 8.00, Waragonite = 2.08) treatment representing non-upwelling, current ocean conditions and a high pCO2 (mean condition: 1,180 matm, pHT 7.65, Waragonite = 0.91) treatment representing strong upwelling pH values observed along the California coast, as well as near-future persistent values predicted to become increasingly common with ocean acidification. We created F1 offspring from brood stock (F0) described below and carried out F1 and F2 exposure treatments during the parents’ (F1) larval and post-settlement phases (first three months of life; F1 early-life exposure; detailed in Swezey et al. 2020), the parents’ (F1) mature reproductive phase (for 14 months total prior to spawning; F1 adult exposure), and again during the offsprings’ (F2) larval and post-settlement phases (first three months; F2 early-life exposure) (Fig. 1). We performed experiments in a flow-through system used in previous OA ... |
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