Turning up the heat: Differential responses of blue mussels (Mytilus edulis) in Atlantic Canada to thermal stress.
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| Format: | Artículo científico |
| Sprache: | en |
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Marine environmental research
2025
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| _version_ | 1868266174426382338 |
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| author | Clarke, Shelby B Ignatz, Eric H Hori, Tiago S Comeau, Luc A Filgueira, Ramón |
| author_facet | Clarke, Shelby B Ignatz, Eric H Hori, Tiago S Comeau, Luc A Filgueira, Ramón Clarke, Shelby B Ignatz, Eric H Hori, Tiago S Comeau, Luc A Filgueira, Ramón |
| collection | PubMed - marine biology |
| contents | Turning up the heat: Differential responses of blue mussels (Mytilus edulis) in Atlantic Canada to thermal stress. Clarke, Shelby B Ignatz, Eric H Hori, Tiago S Comeau, Luc A Filgueira, Ramón Animals Mytilus edulis Nova Scotia Climate Change Hot Temperature Heat-Shock Response Stress, Physiological Oxygen Consumption As waters warm with climate change, it is important to comprehend the risk that mussels will face from exposure to elevated temperatures and understand the traits that enhance their fitness and survival under such conditions. Sober Island Pond in Nova Scotia (NS), Canada, is a shallow inlet that experiences limited water exchange between the pond and the open ocean, exposing mussels to anomalously high summer temperatures. Comparatively, St. Peter's Bay in Prince Edward Island (PEI) is a larger coastal inlet with stronger water exchange with the ocean, and mussels are exposed to relatively cooler temperatures. The objective of this study was to compare the thermal biology of two sources of mussels from Atlantic Canada, Sober Island Pond, NS and St. Peter's Bay, PEI. Mussels were held under three temperatures (20, 25, and 30 °C), and four metrics were used to characterize their thermal biology: (1) lethal thermal threshold (LT), (2) oxygen consumption rate, (3) valve gaping behaviour, and (4) RNA sequencing (RNA-seq). Results showed differences in the physiological, behavioural, and genomic responses between mussel sources, with individuals from Sober Island Pond, NS, outperforming individuals from St. Peter's Bay, PEI, under elevated temperatures. The RNA-seq identified putative biomarkers of temperature resilience and generated lists of thousands of differentially expressed transcripts to characterize the response to heat stress, which has applications to the development of selective breeding programs. This study highlights the potential for diverse responses to future climatic scenarios in mussels from different thermal environments, which could have ecological and socio-economic implications. |
| format | Artículo científico |
| id | pubmed_40694997 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Marine environmental research |
| record_format | pubmed |
| spellingShingle | Turning up the heat: Differential responses of blue mussels (Mytilus edulis) in Atlantic Canada to thermal stress. Clarke, Shelby B Ignatz, Eric H Hori, Tiago S Comeau, Luc A Filgueira, Ramón Animals Mytilus edulis Nova Scotia Climate Change Hot Temperature Heat-Shock Response Stress, Physiological Oxygen Consumption Turning up the heat: Differential responses of blue mussels (Mytilus edulis) in Atlantic Canada to thermal stress. Clarke, Shelby B Ignatz, Eric H Hori, Tiago S Comeau, Luc A Filgueira, Ramón Animals Mytilus edulis Nova Scotia Climate Change Hot Temperature Heat-Shock Response Stress, Physiological Oxygen Consumption As waters warm with climate change, it is important to comprehend the risk that mussels will face from exposure to elevated temperatures and understand the traits that enhance their fitness and survival under such conditions. Sober Island Pond in Nova Scotia (NS), Canada, is a shallow inlet that experiences limited water exchange between the pond and the open ocean, exposing mussels to anomalously high summer temperatures. Comparatively, St. Peter's Bay in Prince Edward Island (PEI) is a larger coastal inlet with stronger water exchange with the ocean, and mussels are exposed to relatively cooler temperatures. The objective of this study was to compare the thermal biology of two sources of mussels from Atlantic Canada, Sober Island Pond, NS and St. Peter's Bay, PEI. Mussels were held under three temperatures (20, 25, and 30 °C), and four metrics were used to characterize their thermal biology: (1) lethal thermal threshold (LT), (2) oxygen consumption rate, (3) valve gaping behaviour, and (4) RNA sequencing (RNA-seq). Results showed differences in the physiological, behavioural, and genomic responses between mussel sources, with individuals from Sober Island Pond, NS, outperforming individuals from St. Peter's Bay, PEI, under elevated temperatures. The RNA-seq identified putative biomarkers of temperature resilience and generated lists of thousands of differentially expressed transcripts to characterize the response to heat stress, which has applications to the development of selective breeding programs. This study highlights the potential for diverse responses to future climatic scenarios in mussels from different thermal environments, which could have ecological and socio-economic implications. |
| title | Turning up the heat: Differential responses of blue mussels (Mytilus edulis) in Atlantic Canada to thermal stress. |
| topic | Animals Mytilus edulis Nova Scotia Climate Change Hot Temperature Heat-Shock Response Stress, Physiological Oxygen Consumption |
| url | https://pubmed.ncbi.nlm.nih.gov/40694997/ |