Kerry-Ann van der Walt , Seshnee Reddy , Antony M. Knights , Louise B. Firth , Francesca Porri
{"title":"两种短爪蟹生命早期温度诱导的代谢表现","authors":"Kerry-Ann van der Walt , Seshnee Reddy , Antony M. Knights , Louise B. Firth , Francesca Porri","doi":"10.1016/j.jtherbio.2025.104252","DOIUrl":null,"url":null,"abstract":"<div><div>Understanding marine species' metabolic responses to short- and long-term temperature variation is critical for predicting the resilience of communities and ecosystems at local and global scales. This study investigated the effect of temperature on the routine metabolic rate (RMR) across the zoea and megalopa stages of two brachyuran species, <em>Hymenosoma orbiculare</em> and <em>Pinnotheres</em> sp. Respirometry results under temperatures ranging from 11 to 25 °C revealed stage- and species-specific metabolic responses. In <em>H. orbiculare</em>, RMR in the megalopa life stage increased steeply and significantly at 22 °C, whereas the zoea life stage showed no significant change across the temperature range tested. For <em>Pinnotheres</em> sp., the megalopa life stage also exhibited significant RMR increases above 19 °C, while the zoea life stage showed stable RMR. These results demonstrate that megalopae, particularly <em>H. orbiculare</em>, are more metabolically sensitive to acute warming, operating closer to their physiological limits, while zoeae maintain relative stability, but may be constrained by limited plasticity under sustained warming. Species-level comparisons indicate that <em>H. orbiculare</em><em>,</em> with its higher and more variable RMR, is more vulnerable than <em>Pinnotheres</em> sp., whose larval stages maintain comparatively stable metabolism. This study highlights the importance of understanding life-stage- and species-specific thermal responses to better predict larval survival, recruitment, and resilience under future climate warming.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"132 ","pages":"Article 104252"},"PeriodicalIF":2.9000,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Temperature-induced metabolic performance in early life stages of two brachyuran crabs\",\"authors\":\"Kerry-Ann van der Walt , Seshnee Reddy , Antony M. Knights , Louise B. Firth , Francesca Porri\",\"doi\":\"10.1016/j.jtherbio.2025.104252\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Understanding marine species' metabolic responses to short- and long-term temperature variation is critical for predicting the resilience of communities and ecosystems at local and global scales. This study investigated the effect of temperature on the routine metabolic rate (RMR) across the zoea and megalopa stages of two brachyuran species, <em>Hymenosoma orbiculare</em> and <em>Pinnotheres</em> sp. Respirometry results under temperatures ranging from 11 to 25 °C revealed stage- and species-specific metabolic responses. In <em>H. orbiculare</em>, RMR in the megalopa life stage increased steeply and significantly at 22 °C, whereas the zoea life stage showed no significant change across the temperature range tested. For <em>Pinnotheres</em> sp., the megalopa life stage also exhibited significant RMR increases above 19 °C, while the zoea life stage showed stable RMR. These results demonstrate that megalopae, particularly <em>H. orbiculare</em>, are more metabolically sensitive to acute warming, operating closer to their physiological limits, while zoeae maintain relative stability, but may be constrained by limited plasticity under sustained warming. Species-level comparisons indicate that <em>H. orbiculare</em><em>,</em> with its higher and more variable RMR, is more vulnerable than <em>Pinnotheres</em> sp., whose larval stages maintain comparatively stable metabolism. This study highlights the importance of understanding life-stage- and species-specific thermal responses to better predict larval survival, recruitment, and resilience under future climate warming.</div></div>\",\"PeriodicalId\":17428,\"journal\":{\"name\":\"Journal of thermal biology\",\"volume\":\"132 \",\"pages\":\"Article 104252\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2025-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of thermal biology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0306456525002098\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of thermal biology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0306456525002098","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
Temperature-induced metabolic performance in early life stages of two brachyuran crabs
Understanding marine species' metabolic responses to short- and long-term temperature variation is critical for predicting the resilience of communities and ecosystems at local and global scales. This study investigated the effect of temperature on the routine metabolic rate (RMR) across the zoea and megalopa stages of two brachyuran species, Hymenosoma orbiculare and Pinnotheres sp. Respirometry results under temperatures ranging from 11 to 25 °C revealed stage- and species-specific metabolic responses. In H. orbiculare, RMR in the megalopa life stage increased steeply and significantly at 22 °C, whereas the zoea life stage showed no significant change across the temperature range tested. For Pinnotheres sp., the megalopa life stage also exhibited significant RMR increases above 19 °C, while the zoea life stage showed stable RMR. These results demonstrate that megalopae, particularly H. orbiculare, are more metabolically sensitive to acute warming, operating closer to their physiological limits, while zoeae maintain relative stability, but may be constrained by limited plasticity under sustained warming. Species-level comparisons indicate that H. orbiculare, with its higher and more variable RMR, is more vulnerable than Pinnotheres sp., whose larval stages maintain comparatively stable metabolism. This study highlights the importance of understanding life-stage- and species-specific thermal responses to better predict larval survival, recruitment, and resilience under future climate warming.
期刊介绍:
The Journal of Thermal Biology publishes articles that advance our knowledge on the ways and mechanisms through which temperature affects man and animals. This includes studies of their responses to these effects and on the ecological consequences. Directly relevant to this theme are:
• The mechanisms of thermal limitation, heat and cold injury, and the resistance of organisms to extremes of temperature
• The mechanisms involved in acclimation, acclimatization and evolutionary adaptation to temperature
• Mechanisms underlying the patterns of hibernation, torpor, dormancy, aestivation and diapause
• Effects of temperature on reproduction and development, growth, ageing and life-span
• Studies on modelling heat transfer between organisms and their environment
• The contributions of temperature to effects of climate change on animal species and man
• Studies of conservation biology and physiology related to temperature
• Behavioural and physiological regulation of body temperature including its pathophysiology and fever
• Medical applications of hypo- and hyperthermia
Article types:
• Original articles
• Review articles