气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and standard metabolic rate, ATP concentration, lactate concentration of Arctic krill Thysanoessa inermis

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.900729
	Seawater carbonate chemistry and standard metabolic rate, ATP concentration, lactate concentration of Arctic krill Thysanoessa inermis
	Venello; Theresa A; Calosi; Piero; Turner; Lucy M; Findlay; Helen S
发布日期	2019-04-26
数据集类型	dataset
英文关键词	Animalia ; Arctic ; Arthropoda ; Bottles or small containers/Aquaria ( 20 L) ; Laboratory experiment ; Open ocean ; Other metabolic rates ; Pelagos ; Polar ; Respiration ; Single species ; Thysanoessa inermis ; Zooplankton
英文简介	Areas of the Arctic Ocean are already experiencing seasonal variation in low pH/elevated pCO2and are predicted to be the most affected by future ocean acidification (OA). Krill play a fundamental ecological role within Arctic ecosystems, serving as a vital link in the transfer of energy from phytoplankton to higher trophic levels. However, little is known of the chemical habitat occupied by Arctic invertebrate species, and of their responses to changes in seawater pH. Therefore, understanding krill's responses to low pH conditions has important implications for the prediction of how Arctic marine communities may respond to future ocean change. Here, we present natural seawater carbonate chemistry conditions found in the late polar winter (April) in Kongsfjord, Svalbard (79°North) as well as the response of the Arctic krill, Thysanoessa inermis, exposed to a range of low pH conditions. Standard metabolic rate (measured as oxygen consumption) and energy metabolism markers (incl. adenosine triphosphate (ATP) and l-lactate) of T. inermis were examined. We show that after a 7 days experiment with T. inermis, no significant effects of low pH on MO2, ATP and l-lactate were observed. Additionally, we report carbonate chemistry from within Kongsfjord, which showed that the more stratified inner fjord had lower total alkalinity, higher dissolved inorganic carbon, pCO2 and lower pH than the well-mixed outer fjord. Consequently, our results suggest that overwintering individuals of T. inermis may possess sufficient ability to tolerate short-term low pH conditions due to their migratory behaviour, which exposes T. inermis to the naturally varying carbonate chemistry observed within Kongsfjord, potentially allowing T. inermis to tolerate future OA scenarios.
空间范围	Latitude: 78.949380 * Longitude: 12.039300
时间范围	2014-04-22T00:00:00 - 2014-04-22T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215870
推荐引用方式 GB/T 7714	Venello,Theresa A,Calosi,et al. Seawater carbonate chemistry and standard metabolic rate, ATP concentration, lactate concentration of Arctic krill Thysanoessa inermis.2019-04-26.https://doi.org/10.1594/PANGAEA.900729.