DOI: 10.1016/j.marpolbul.2017.07.049
Scopus记录号: 2-s2.0-85033495474
论文题名: A dual indicator approach for monitoring benthic impacts from organic enrichment with test application near Atlantic salmon farms
作者: Cranford P.J. ; Brager L. ; Wong D.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 124, 期: 1 起始页码: 258
结束页码: 265
语种: 英语
英文关键词: Eutrophication
; Macrofauna
; Organic enrichment
; Oxygen
; Salmon aquaculture
; Sulfides
Scopus关键词: Aquaculture
; Electrodes
; Eutrophication
; Ion selective electrodes
; Oxygen
; Sediments
; Sulfur compounds
; Surficial sediments
; Benthic communities
; Dissolved oxygen concentrations
; Faunal communities
; Macrofauna
; Organic enrichment
; Salmon aquacultures
; Sulfides
; Test applications
; Dissolved oxygen
; dissolved oxygen
; oxygen
; sulfide
; benthos
; dissolved oxygen
; enrichment
; eutrophication
; salmonid culture
; sulfide
; surficial sediment
; animal experiment
; aquaculture
; Article
; artifact
; benthic fauna
; benthos
; concentration (parameters)
; controlled study
; depletion
; ecotoxicity
; environmental impact
; environmental impact assessment
; environmental monitoring
; geochemical analysis
; nonhuman
; organic enrichment
; oxidation
; Salmo salar
; sediment
; volatilization
; water analysis
; Salmo salar
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The organic enrichment of surficial sediments has a known effect on benthic faunal communities due largely to oxygen depletion and sulfide toxicity. Total dissolved sulfide (free S− 2 = H2S + HS− + S2 −) concentrations in sediments are widely measured as a practical indicator of community effects. However, the standard ion selective electrode (ISE) method for free S− 2 analysis can provide biased results owing to the inclusion of non-toxic mineral sulfides and the oxidation and volatilization of free S− 2. A rapid field protocol was developed that alleviates these problems while also providing data on dissolved oxygen concentrations. Sediments collected near salmon aquaculture pens over cohesive and permeable substrates were analysed using the standard and new protocols. The results confirm previous conclusions of artifacts with the standard ISE method, while the dual indicator approach more accurately describes the stages, spatial extent and magnitude of sediment geochemical alterations affecting benthic communities. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87443
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Dr., Dartmouth, Nova Scotia, Canada; Fisheries and Oceans Canada, St. Andrews Biological Station, 531 Brandy Cove Rd., St. Andrews, New Brunswick, Canada
Recommended Citation:
Cranford P.J.,Brager L.,Wong D.. A dual indicator approach for monitoring benthic impacts from organic enrichment with test application near Atlantic salmon farms[J]. Marine Pollution Bulletin,2017-01-01,124(1)