DOI: 10.1111/gcb.12227
论文题名: Development and validation of an experimental life support system for assessing the effects of global climate change and environmental contamination on estuarine and coastal marine benthic communities
作者: Coelho F.J.R.C. ; Rocha R.J.M. ; Pires A.C.C. ; Ladeiro B. ; Castanheira J.M. ; Costa R. ; Almeida A. ; Cunha A. ; Lillebø A.I. ; Ribeiro R. ; Pereira R. ; Lopes I. ; Marques C. ; Moreira-Santos M. ; Calado R. ; Cleary D.F.R. ; Gomes N.C.M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 8 起始页码: 2584
结束页码: 2595
语种: 英语
英文关键词: Benthic communities
; Climate change
; Marine sediments
; Microbial ecology
; Microcosm
; Pyrosequencing
Scopus关键词: sea water
; benthos
; climate change
; climate effect
; coastal zone
; environmental quality
; estuarine ecosystem
; global climate
; marine sediment
; microbial community
; microbial ecology
; pollution effect
; relative abundance
; seawater
; ultraviolet radiation
; water chemistry
; animal
; aquatic species
; article
; benthic communities
; chemistry
; climate change
; economics
; ecosystem
; equipment
; marine biology
; marine sediments
; methodology
; microbial ecology
; microbiology
; microclimate
; microcosm
; physiology
; pyrosequencing
; validation study
; water pollutant
; benthic communities
; climate change
; marine sediments
; microbial ecology
; microcosm
; pyrosequencing
; Animals
; Aquatic Organisms
; Climate Change
; Ecosystem
; Life Support Systems
; Marine Biology
; Seawater
; Water Pollutants
; Bacteria (microorganisms)
; Hediste diversicolor
; Polychaeta
英文摘要: An experimental life support system (ELSS) was constructed to study the interactive effects of multiple stressors on coastal and estuarine benthic communities, specifically perturbations driven by global climate change and anthropogenic environmental contamination. The ELSS allows researchers to control salinity, pH, temperature, ultraviolet radiation (UVR), tidal rhythms and exposure to selected contaminants. Unlike most microcosms previously described, our system enables true independent replication (including randomization). In addition to this, it can be assembled using commercially available materials and equipment, thereby facilitating the replication of identical experimental setups in different geographical locations. Here, we validate the reproducibility and environmental quality of the system by comparing chemical and biological parameters recorded in our ELSS with those prevalent in the natural environment. Water, sediment microbial community and ragworm (the polychaete Hediste diversicolor) samples were obtained from four microcosms after 57 days of operation. In general, average concentrations of dissolved inorganic nutrients (NO3 -; NH4 + and PO4 -3) in the water column of the ELSS experimental control units were within the range of concentrations recorded in the natural environment. While some shifts in bacterial community composition were observed between in situ and ELSS sediment samples, the relative abundance of most metabolically active bacterial taxa appeared to be stable. In addition, ELSS operation did not significantly affect survival, oxidative stress and neurological biomarkers of the model organism Hediste diversicolor. The validation data indicate that this system can be used to assess independent or interactive effects of climate change and environmental contamination on benthic communities. Researchers will be able to simulate the effects of these stressors on processes driven by microbial communities, sediment and seawater chemistry and to evaluate potential consequences to sediment toxicity using model organisms such as Hediste diversicolor. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62371
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biology and CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Department of Physics and CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centre of Marine Sciences, Algarve University, Gambelas Campus, 8005-139 Faro, Portugal; Instituto do Mar (IMAR-CMA), Department of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal; Departament of Biology, Faculty of Sciences of the University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
Recommended Citation:
Coelho F.J.R.C.,Rocha R.J.M.,Pires A.C.C.,et al. Development and validation of an experimental life support system for assessing the effects of global climate change and environmental contamination on estuarine and coastal marine benthic communities[J]. Global Change Biology,2013-01-01,19(8)