DOI: 10.1007/s10533-015-0119-y
Scopus记录号: 2-s2.0-84938291168
论文题名: Effect of sediment grain size and bioturbation on decomposition of organic matter from aquaculture
作者: Martinez-Garcia E. ; Carlsson M.S. ; Sanchez-Jerez P. ; Sánchez-Lizaso J.L. ; Sanz-Lazaro C. ; Holmer M.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 125, 期: 1 起始页码: 133
结束页码: 148
语种: 英语
英文关键词: Aquaculture
; Benthic fluxes
; Hediste diversicolor
; Organic enrichment
; Sediment biogeochemistry
Scopus关键词: aquaculture
; aquaculture industry
; benthic flux
; biogeochemistry
; bioturbation
; decomposition
; grain size
; mesocosm
; nutrient cycling
; organic matter
; recycling
; site selection
; Hediste diversicolor
; Polychaeta
英文摘要: Sediment grain size plays a major role in sediment biogeochemistry and sediments with different grain size are expected to react differently to organic enrichment. Through a mesocosm approach we tested the behavior of sediments with two types of predominant grain size (sandy and muddy sediments) under two levels of organic enrichment, related to mussel and fish farming. The polychaete Hediste diversicolor was used to simulate macrofauna bioturbation and bioirrigation. H. diversicolor stimulated organic matter (OM) mineralization and nutrient recycling. Muddy sediments had more OM from nature, resulting in higher sulfate reduction rates than sandy sediments. Under low levels of organic enrichment grain size did not have any effect on benthic fluxes (sediment oxygen uptake, total CO2, ammonium, nitrate, nitrite and phosphate). However, at high levels of organic enrichment, sandy sediments accumulated less OM, less sulfide and less ammonium than muddy sediments, while sediment oxygen uptake and total CO2 showed similar levels between sandy and muddy sediments. Thus, grain size should be considered a key parameter for site selection of fish farming facilities when aiming for a sustainable aquaculture industry. © 2015, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83481
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Marine Sciences and Applied Biology, University of Alicante, PO Box 99, Alicante, Spain; Department of Biology, University of Southern Denmark, Odense M, Denmark
Recommended Citation:
Martinez-Garcia E.,Carlsson M.S.,Sanchez-Jerez P.,et al. Effect of sediment grain size and bioturbation on decomposition of organic matter from aquaculture[J]. Biogeochemistry,2015-01-01,125(1)