Cargando…
Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events
The study of a species’ thermal tolerance and vital rates responses provides useful metrics to characterize its vulnerability to ocean warming. Under prolonged thermal stress, plastic and adaptive processes can adjust the physiology of organisms. Yet it is uncertain whether the species can expand th...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10539201/ https://www.ncbi.nlm.nih.gov/pubmed/37779672 http://dx.doi.org/10.1093/plankt/fbad037 |
_version_ | 1785113446561349632 |
---|---|
author | de Juan, Carlos Calbet, Albert Saiz, Enric |
author_facet | de Juan, Carlos Calbet, Albert Saiz, Enric |
author_sort | de Juan, Carlos |
collection | PubMed |
description | The study of a species’ thermal tolerance and vital rates responses provides useful metrics to characterize its vulnerability to ocean warming. Under prolonged thermal stress, plastic and adaptive processes can adjust the physiology of organisms. Yet it is uncertain whether the species can expand their upper thermal limits to cope with rapid and extreme changes in environmental temperature. In this study, we reared the marine copepod Paracartia grani at control (19°C) and warmer conditions (25°C) for >18 generations and assessed their survival and fecundity under short-term exposure to a range of temperatures (11–34°C). After multigenerational warming, the upper tolerance to acute exposure (24 h) increased by 1–1.3°C, although this enhancement decreased to 0.3–0.8°C after longer thermal stress (7 days). Warm-reared copepods were smaller and produced significantly fewer offspring at the optimum temperature. No shift in the thermal breadth of the reproductive response was observed. Yet the fecundity rates of the warm-reared copepods in the upper thermal range were up to 21-fold higher than the control. Our results show that chronic warming improved tolerance to stress temperatures and fecundity of P. grani, therefore, enhancing its chances to persist under extreme heat events. |
format | Online Article Text |
id | pubmed-10539201 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-105392012023-09-30 Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events de Juan, Carlos Calbet, Albert Saiz, Enric J Plankton Res Original Article The study of a species’ thermal tolerance and vital rates responses provides useful metrics to characterize its vulnerability to ocean warming. Under prolonged thermal stress, plastic and adaptive processes can adjust the physiology of organisms. Yet it is uncertain whether the species can expand their upper thermal limits to cope with rapid and extreme changes in environmental temperature. In this study, we reared the marine copepod Paracartia grani at control (19°C) and warmer conditions (25°C) for >18 generations and assessed their survival and fecundity under short-term exposure to a range of temperatures (11–34°C). After multigenerational warming, the upper tolerance to acute exposure (24 h) increased by 1–1.3°C, although this enhancement decreased to 0.3–0.8°C after longer thermal stress (7 days). Warm-reared copepods were smaller and produced significantly fewer offspring at the optimum temperature. No shift in the thermal breadth of the reproductive response was observed. Yet the fecundity rates of the warm-reared copepods in the upper thermal range were up to 21-fold higher than the control. Our results show that chronic warming improved tolerance to stress temperatures and fecundity of P. grani, therefore, enhancing its chances to persist under extreme heat events. Oxford University Press 2023-09-06 /pmc/articles/PMC10539201/ /pubmed/37779672 http://dx.doi.org/10.1093/plankt/fbad037 Text en © The Author(s) 2023. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article de Juan, Carlos Calbet, Albert Saiz, Enric Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
title | Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
title_full | Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
title_fullStr | Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
title_full_unstemmed | Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
title_short | Shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
title_sort | shifts in survival and reproduction after chronic warming enhance the potential of a marine copepod to persist under extreme heat events |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10539201/ https://www.ncbi.nlm.nih.gov/pubmed/37779672 http://dx.doi.org/10.1093/plankt/fbad037 |
work_keys_str_mv | AT dejuancarlos shiftsinsurvivalandreproductionafterchronicwarmingenhancethepotentialofamarinecopepodtopersistunderextremeheatevents AT calbetalbert shiftsinsurvivalandreproductionafterchronicwarmingenhancethepotentialofamarinecopepodtopersistunderextremeheatevents AT saizenric shiftsinsurvivalandreproductionafterchronicwarmingenhancethepotentialofamarinecopepodtopersistunderextremeheatevents |