DOI: 10.1016/j.marpolbul.2017.12.003
Scopus记录号: 2-s2.0-85040672557
论文题名: Variation in benthic metabolism and nitrogen cycling across clam aquaculture sites
作者: Murphy A.E. ; Nizzoli D. ; Bartoli M. ; Smyth A.R. ; Castaldelli G. ; Anderson I.C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 127 起始页码: 524
结束页码: 535
语种: 英语
英文关键词: Clam aquaculture
; Denitrification
; DNRA
; Nitrate respiration
; Nitrification
; Nitrogen cycling
Scopus关键词: Aquaculture
; Denitrification
; Dissolved oxygen
; Nitrates
; Nitrification
; Nitrogen
; Shellfish
; Benthic metabolisms
; Denitrification rate
; Dissimilatory nitrate reduction
; DNRA
; Hydrologic flow
; Nitrate respiration
; Nitrogen cycling
; Water columns
; Molluscs
; ammonia
; dissolved oxygen
; nitrate
; benthic environment
; clam culture
; denitrification
; metabolism
; nitrification
; nitrogen cycle
; aquaculture
; Article
; benthos
; biomass production
; competitive behavior
; concentration (parameters)
; denitrification
; environmental factor
; Mercenaria
; Mercenaria mercenaria
; nitrification
; nitrogen cycling
; nonhuman
; nutrient
; Ruditapes philippinarum
; salinity
; sediment
; Emilia-Romagna
; Ferrara
; Italy
; Sacca di Goro
; United States
; Bivalvia
; Corophium
; Mercenaria mercenaria
; Ruditapes
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: As bivalve aquaculture expands globally, an understanding of how it alters nitrogen is important to minimize impacts. This study investigated nitrogen cycling associated with clam aquaculture in the Sacca di Goro, Italy (Ruditapes philipinarum) and the Eastern Shore, USA (Mercenaria mercenaria). Ammonium and dissolved oxygen fluxes were positively correlated with clam biomass; R. philippinarum consumed ~ 6 times more oxygen and excreted ~ 5 times more NH4 + than M. mercenaria. There was no direct effect of clams on denitrification or dissimilatory nitrate reduction to ammonium (DNRA); rather, nitrate availability controlled the competition between these microbial pathways. Highest denitrification rates were measured at sites where both water column nitrate and nitrification were elevated due to high densities of a burrowing amphipod (Corophium sp.). DNRA exceeded denitrification where water column nitrate was low and nitrification was suppressed in highly reduced sediment, potentially due to low hydrologic flow and high clam densities. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88481
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: Virginia Institute of Marine Science, College of William & Mary, Gloucester Point, VA, United States; Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, Parma, Italy; Klaipeda University, Klaipeda, Lithuania; Soil and Water Sciences Department, Tropical Research and Education Center, University of Florida, Insitute of Food and Agricultural Sciences, Homestead, FL, United States; Department of Life Sciences and Biotechnology, Ferrara University, Italy
Recommended Citation:
Murphy A.E.,Nizzoli D.,Bartoli M.,et al. Variation in benthic metabolism and nitrogen cycling across clam aquaculture sites[J]. Marine Pollution Bulletin,2018-01-01,127