DOI: 10.1016/j.envpol.2019.113572
论文题名: Ecotoxicological responses of a reef calcifier exposed to copper, acidification and warming: A multiple biomarker approach
作者: Marques J.A. ; Abrantes D.P. ; Marangoni L.F. ; Bianchini A.
刊名: Environmental Pollution
ISSN: 2697491
出版年: 2020
卷: 257 语种: 英语
英文关键词: Climate change
; Coral reef
; Mesocosm
; Metal
; Symbiont-bearing foraminifera
Scopus关键词: Acidification
; Biomarkers
; Biomineralization
; Copper
; Enzyme inhibition
; Health risks
; Metals
; Pollution
; Reefs
; Bioindicator species
; Coral reef
; Integrated biomarker response
; Mesocosms
; Ocean acidifications
; Potential monitoring
; Realistic exposure scenario
; Symbiont-bearing foraminifera
; Climate change
; adenosine triphosphatase (calcium)
; chlorophyll a
; copper
; proton transporting adenosine triphosphatase
; acidification
; biomarker
; climate change
; copper
; coral reef
; ecotoxicology
; foraminifera
; mesocosm
; pollution effect
; pollution exposure
; symbiont
; warming
; Amphistegina gibbosa
; bleaching
; breathing rate
; calcification
; climate change
; controlled study
; coral reef
; ecotoxicology
; environmental exposure
; environmental management
; environmental monitoring
; environmental stress
; foraminifer
; growth inhibition
; indicator organism
; mesocosm
; mortality
; nonhuman
; ocean acidification
; ocean warming
; physical tolerance
; symbiont
; water contamination
; Anthozoa
; Foraminifera
英文摘要: Multiple global and local stressors threat coral reefs worldwide, and symbiont-bearing foraminifera are bioindicators of reef health. The aim of this study was to investigate single and combined effects of copper (Cu) and climate change related stressors (ocean acidification and warming) on a symbiont-bearing foraminifer by means of an integrated biomarker analysis. Using a mesocosm approach, Amphistegina gibbosa were exposed for 25 days to acidification, warming and/or Cu contamination on a full orthogonal design (two levels each factor). Cu was the main factor increasing bleaching and respiration rates. Warming was the main cause of mortality and reduced growth. Calcification related enzymes were inhibited in response to Cu exposure and, in general, the inhibition was stronger under climate change. Multiple biological endpoints responded to realistic exposure scenarios in different ways, but evidenced general stress posed by climate change combined with Cu. These biological responses drove the high values found for the ‘stress index’ IBR (Integrated Biomarker Response) – indicating general organismal health impairment under the multiple stressor scenario. Our results provide insights for coral reef management by detecting potential monitoring tools. The ecotoxicological responses indicated that Cu reduces the tolerance of foraminifera to climate change (acidification + warming). Once the endpoints analysed have a high ecological relevance, and that responses were evaluated on a classical reef bioindicator species, these results highlight the high risk of climate change and metal pollution co-exposure to coral reefs. Integrated responses allowed a better effects comprehension and are pointed as a promising tool to monitor pollution effects on a changing ocean. Copper reduces a bioindicator tolerance to climate change. Multiple biomarkers indicated higher stress under multiple stressors, compared to single stressor conditions. Integrated responses are better than isolated biomarkers as monitoring tools. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159720
Appears in Collections: 气候变化与战略
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作者单位: Programa de Pós-Graduação em Oceanografia Biológica, Universidade Federal do Rio Grande (IO/FURG), Rio Grande, RS, Brazil; Instituto Coral Vivo, Santa Cruz Cabralia, BA, Brazil; Programa de Pós-Graduação em Zoologia, Universidade Federal do Rio de Janeiro (MNRJ/UFRJ), Rio de Janeiro, RJ, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (ICB/FURG), Rio Grande, RS, Brazil
Recommended Citation:
Marques J.A.,Abrantes D.P.,Marangoni L.F.,et al. Ecotoxicological responses of a reef calcifier exposed to copper, acidification and warming: A multiple biomarker approach[J]. Environmental Pollution,2020-01-01,257