DOI: 10.1111/gcb.12582
论文题名: Have we been underestimating the effects of ocean acidification in zooplankton?
作者: Cripps G. ; Lindeque P. ; Flynn K.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 11 起始页码: 3377
结束页码: 3385
语种: 英语
英文关键词: Copepod
; Developmental stages
; Mortality
; Ocean acidification
; Recruitment
; Zooplankton
Scopus关键词: Copepoda
; carbon dioxide
; sea water
; animal
; chemistry
; climate change
; copepod
; environmental monitoring
; female
; growth, development and aging
; larva
; male
; metabolism
; pH
; physiology
; reproduction
; sea
; zooplankton
; Animals
; Carbon Dioxide
; Climate Change
; Copepoda
; Environmental Monitoring
; Female
; Hydrogen-Ion Concentration
; Larva
; Male
; Oceans and Seas
; Reproduction
; Seawater
; Zooplankton
英文摘要: 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. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62075
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Centre of Sustainable Aquatic Research (CSAR), Swansea University, Swansea, United Kingdom; Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth, United Kingdom
Recommended Citation:
Cripps G.,Lindeque P.,Flynn K.J.. Have we been underestimating the effects of ocean acidification in zooplankton?[J]. Global Change Biology,2014-01-01,20(11)