DOI: 10.1016/j.marpolbul.2017.12.009
Scopus记录号: 2-s2.0-85044369839
论文题名: Anthropogenic eutrophication affects the body size of Cymodocea nodosa in the North Aegean Sea: A long-term, scale-based approach
作者: Vasileios P. ; Sotiris O.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
语种: 英语
英文关键词: CymoSkew
; Monitoring
; Nested sampling
; Nutrients
; Seagrass
Scopus关键词: Anthropometry
; Catchments
; Decision making
; Monitoring
; Nutrients
; Plants (botany)
; Water quality
; Anthropogenic eutrophication
; Attenuation coefficient
; CymoSkew
; Decision making support
; Industrial activities
; Management practices
; Monitoring programs
; Seagrasses
; Eutrophication
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The variation of eleven Cymodocea nodosa metrics was studied along two anthropogenic gradients in the North Aegean Sea, in two separate periods (July 2004 and July 2013). The aim was to specify existing monitoring programs on different kind of human-induced or natural stress for a better decision-making support. Key water variables (N-NO2, N-NO3, N-NH4, P-PO4, Chl-a, attenuation coefficient-K, and suspended solids) along with the stress index MALUSI were also estimated in each sampling effort. All metrics (except one) showed significant differences (p < 0.05) and highest variation at the meadows scale in both sampling periods. The body size, e.g., CymoSkew, total and maximum leaf length, and leaf area (cm2/shoot), rather than the abundance, e.g., shoot density (shoots/m2), leaf area index (m2/m2), metrics were related to anthropogenic eutrophication variables represented by N-NH4, N-NO3, N/P and MALUSI. The temporal analysis was restricted to two (2) meadows and water variables that were common between the two periods. PERMANOVA and PCA of common meadows and metrics within nine years showed significant but not consistent differences. While the most impacted studied site of Viamyl remained unchanged, a significant improvement of water quality was observed in the second most impacted meadow of Nea Karvali, which however was reduced to half of its previous area. On the one hand that was the result of combined management practices in nearby aquacultures and lower industrial activities due to the economic crisis. On the contrary, dredging and excess siltation from changes in land catchments and construction of permanent structures may decrease seagrass abundance. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88560
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: Fisheries Research Institute, Hellenic Agricultural Organization “DEMETER”, Nea Peramos, Kavala, Greece
Recommended Citation:
Vasileios P.,Sotiris O.. Anthropogenic eutrophication affects the body size of Cymodocea nodosa in the North Aegean Sea: A long-term, scale-based approach[J]. Marine Pollution Bulletin,2018-01-01