globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13870
Scopus记录号: 2-s2.0-85030124136
论文题名:
Contrasting physiological responses to future ocean acidification among Arctic copepod populations
作者: Thor P.; Bailey A.; Dupont S.; Calosi P.; Søreide J.E.; De Wit P.; Guscelli E.; Loubet-Sartrou L.; Deichmann I.M.; Candee M.M.; Svensen C.; King A.L.; Bellerby R.G.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:1
起始页码: e365
结束页码: e377
语种: 英语
英文关键词: Arctic ; ingestion rate ; metabolic rate ; ocean acidification ; pCO2 ; pH ; reaction norm ; zooplankton
Scopus关键词: arctic environment ; growth response ; homeostasis ; ingestion rate ; metabolism ; ocean acidification ; physiological response ; reaction norm ; zooplankton ; Arctic ; Disko Bay ; Greenland ; Svalbard ; Svalbard and Jan Mayen ; Calanus glacialis ; Copepoda
英文摘要: Widespread ocean acidification (OA) is modifying the chemistry of the global ocean, and the Arctic is recognized as the region where the changes will progress at the fastest rate. Moreover, Arctic species show lower capacity for cellular homeostasis and acid-base regulation rendering them particularly vulnerable to OA. In the present study, we found physiological differences in OA response across geographically separated populations of the keystone Arctic copepod Calanus glacialis. In copepodites stage CIV, measured reaction norms of ingestion rate and metabolic rate showed severe reductions in ingestion and increased metabolic expenses in two populations from Svalbard (Kongsfjord and Billefjord) whereas no effects were observed in a population from the Disko Bay, West Greenland. At pHT 7.87, which has been predicted for the Svalbard west coast by year 2100, these changes resulted in reductions in scope for growth of 19% in the Kongsfjord and a staggering 50% in the Billefjord. Interestingly, these effects were not observed in stage CV copepodites from any of the three locations. It seems that CVs may be more tolerant to OA perhaps due to a general physiological reorganization to meet low intracellular pH during hibernation. Needless to say, the observed changes in the CIV stage will have serious implications for the C. glacialis population health status and growth around Svalbard. However, OA tolerant populations such as the one in the Disko Bay could help to alleviate severe effects in C. glacialis as a species. © 2017 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110613
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Norwegian Polar Institute, Tromsø, Norway; Department of Biological and Environmental Sciences, University of Gothenburg, Fiskebäckskil, Sweden; Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC, Canada; University Centre in Svalbard, Longyearbyen, Norway; Department of Marine Sciences, University of Gothenburg, Strömstad, Sweden; University of Florence, Florence, Italy; Department of Bioscience, University of Aarhus, Aarhus, Denmark; Danish Technical University, DTU-AQUA, Charlottenlund, Denmark; Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, Tromsø, Norway; Norwegian Institute for Water Research, Bergen, Norway; State Key Laboratory for Estuarine and Coastal Research, East China Normal University, Shanghai, China

Recommended Citation:
Thor P.,Bailey A.,Dupont S.,et al. Contrasting physiological responses to future ocean acidification among Arctic copepod populations[J]. Global Change Biology,2018-01-01,24(1)
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