气候变化领域集成服务门户(CCPortal): Have we been underestimating the effects of ocean acidification in zooplankton?

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DOI	https://doi.org/10.1594/PANGAEA.836728
	Have we been underestimating the effects of ocean acidification in zooplankton?
	Cripps; Gemma; Lindeque; Penelope; Flynn; K J
发布日期	2014-10-15
数据集类型	dataset
英文关键词	Acartia tonsa ; Animalia ; Arthropoda ; Bottles or small containers/Aquaria ( 20 L) ; Laboratory experiment ; Laboratory strains ; Mortality/Survival ; North Atlantic ; Pelagos ; Reproduction ; Single species ; Zooplankton
英文简介	Understanding how copepods may respond to ocean acidification (OA) is critical for risk assessments of ocean ecology and biogeochemistry. The perception that copepods are insensitive to OA is largely based on experiments with adult females. Their apparent resilience to increased carbon dioxide (pCO2) concentrations has supported the view that copepods are 'winners' under OA. Here, we show that this conclusion is not robust, that sensitivity across different life stages is significantly misrepresented by studies solely using adult females. Stage-specific responses to pCO2 (385-6000 µatm) were studied across different life stages of a calanoid copepod, monitoring for lethal and sublethal responses. Mortality rates varied significantly across the different life stages, with nauplii showing the highest lethal effects; nauplii mortality rates increased threefold when pCO2 concentrations reached 1000 µatm (year 2100 scenario) with LC50 at 1084 µatm pCO2. In comparison, eggs, early copepodite stages, and adult males and females were not affected lethally until pCO2 concentrations >= 3000 µatm. Adverse effects on reproduction were found, with >35% decline in nauplii recruitment at 1000 µatm pCO2. This suppression of reproductive scope, coupled with the decreased survival of early stage progeny at this pCO2 concentration, has clear potential to damage population growth dynamics in this species. The disparity in responses seen across the different developmental stages emphasizes the need for a holistic life-cycle approach to make species-level projections to climate change. Significant misrepresentation and error propagation can develop from studies which attempt to project outcomes to future OA conditions solely based on single life history stage exposures.
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/217311
推荐引用方式 GB/T 7714	Cripps,Gemma,Lindeque,et al. Have we been underestimating the effects of ocean acidification in zooplankton?.2014-10-15.https://doi.org/10.1594/PANGAEA.836728.