DOI: 10.1016/j.marpolbul.2016.06.060
Scopus记录号: 2-s2.0-85008334916
论文题名: Artificial soft sediment resuspension and high density opportunistic macroalgal mat fragmentation as method for increasing sediment zoobenthic assemblage diversity in a eutrophic lagoon
作者: Martelloni T. ; Tomassetti P. ; Gennaro P. ; Vani D. ; Persia E. ; Persiano M. ; Falchi R. ; Porrello S. ; Lenzi M.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 110, 期: 1 起始页码: 212
结束页码: 220
语种: 英语
英文关键词: Eutrophication
; Lagoon
; Lagoon remediation
; Sediment disturbance
; Sediment resuspension
; Zoobenthic assemblages
Scopus关键词: animal
; biodiversity
; biomass
; ecosystem
; environmental monitoring
; eutrophication
; invertebrate
; Italy
; Mediterranean Sea
; procedures
; seaweed
; sediment
; ship
; Animals
; Biodiversity
; Biomass
; Ecosystem
; Environmental Monitoring
; Eutrophication
; Geologic Sediments
; Invertebrates
; Italy
; Mediterranean Sea
; Seaweed
; Ships
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Superficial soft sediment resuspension and partial fragmentation of high density opportunistic macroalgal mats were investigated by boat to determine the impact on zoobenthic assemblages in a eutrophic Mediterranean lagoon. Sediment resuspension was used to oxidise superficial organic sediments as a method to counteract the effects of eutrophication. Likewise, artificial decay of macroalgal mat was calculated to reduce a permanent source of sediment organic matter. An area of 9 ha was disturbed (zone D) and two other areas of the same size were left undisturbed (zones U). We measured chemical–physical variables, estimated algal biomass and sedimentary organic matter, and conducted qualitative and quantitative determinations of the zoobenthic species detected in sediment and among algal mats. The results showed a constant major reduction in labile organic matter (LOM) and algal biomass in D, whereas values in U remained stable or increased. In the three zones, however, bare patches of lagoon bed increased in size, either by direct effect of the boats in D or by anaerobic decay of the algal mass in U. Zoobenthic assemblages in algal mats reduced the number of species in D, probably due to the sharp reduction in biomass, but remained stable in U, whereas in all three areas abundance increased. Sediment zoobenthic assemblages increased the number of species in D, as expected, due to drastic reduction in LOM, whereas values in U remained stable and again abundance increased in all three zones. In conclusion, we confirmed that reduction of sediment organic load enabled an increase in the number of species, while the algal mats proved to be an important substrate in the lagoon environment for zoobenthic assemblages, especially when mat alternated with bare intermat areas of lagoon bed. Sediment resuspension is confirmed as a management criterion for counteracting the effects of eutrophication and improving the biodiversity of zoobenthic assemblages in eutrophic lagoon environments. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86835
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Lagoon Ecology and Aquaculture Laboratory (LEALab), via G. Leopardi 9, Orbetello, Italy; Institute for Environmental Protection and Research (ISPRA), via di Castel Romano 100/102, Pomezia, Roma, Italy
Recommended Citation:
Martelloni T.,Tomassetti P.,Gennaro P.,et al. Artificial soft sediment resuspension and high density opportunistic macroalgal mat fragmentation as method for increasing sediment zoobenthic assemblage diversity in a eutrophic lagoon[J]. Marine Pollution Bulletin,2016-01-01,110(1)