Paleo-ecological analyses to assess long-term environmental effects of pearl farming in Western Australia

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Paleo-ecological analyses to assess long-term environmental effects of pearl farming in Western Australia
	Liu, DY; Peng, YJ ; Keesing, JK ; Wang, YJ; Richard, P
刊名	MARINE ECOLOGY PROGRESS SERIES
	2016-06-23
卷号	552 页码:145-158
关键词	Pearl oyster farming Paleo-ecology Sediment cores Biogenic silica Cygnet Bay Western Australia
ISSN号	0171-8630
通讯作者	Liu, DY (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai 264003, Shandong, Peoples R China. dyliu@yic.ac.cn
产权排序	[Liu, Dongyan; Peng, Yajun; Wang, Yujue] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai 264003, Shandong, Peoples R China; [Peng, Yajun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Keesing, John K.] CSIRO Oceans & Atmosphere, Private Bag 5, Wembley 6913, Australia; [Keesing, John K.] Western Australian Marine Sci Inst, Perth, WA, Australia; [Keesing, John K.] Western Australian Marine Sci Inst, Perth, WA, Australia; [Richard, Pierre] Univ La Rochelle, UMR CNRS 7266, Littoral Environm & Soc, 2 Rue Olympe Gouges, F-17000 La Rochelle, France
英文摘要	Small environmental disturbances accumulating over a long period of time may cause a regime shift in marine ecosystems, particularly in sensitive oligotrophic waters. Pearl oyster aquaculture, which has a 50 yr history in Australia, has been regarded as an anthropogenic activity with low environmental risk. To assess the long-term environmental effects of pearl oyster farming, sediment cores taken in Cygnet Bay, Western Australia, were used to reconstruct environmental processes covering an approximately 90 yr period. Biogeochemical parameters in sediment cores from inside and outside a pearl farming area displayed contrasting characteristics over time. Total organic carbon, total nitrogen, biogenic silica (BSi), and fine-grained sediment at the farming site displayed significant increases with the expansion of oyster stocking. In contrast, only small variations in response to climatic signals (rainfall and temperature) occurred over time in the cores outside the farm. The variation in the C:N ratio, delta C-13 and delta N-15 ranges over time suggested that increased organic matter was mainly contributed by autochthonous sources rather than terrestrial input. The sequential t-test for a regime shift detected approximately 2-to 3-fold increases in organic matter, 1-to 5-fold increases in silt proportion and 2-to 5-fold increases in BSi concentrations after pearl oyster farming, in contrast to the control site. The rapid development of modern long-line culture since the late 1980s is presumed to have been the dominant driver of environmental changes in sediments. The results provide insight into the magnitude of environmental change which can occur over decades as a result of even minimal anthropogenic activity.
研究领域[WOS]	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
关键词[WOS]	BIOGENIC SILICA ; ORGANIC-MATTER ; REGIME SHIFTS ; MARINE AQUACULTURE ; CONTINENTAL-SHELF ; NUTRIENT DYNAMICS ; MUSSEL CULTURE ; KING SOUND ; C/N RATIOS ; SEDIMENT
收录类别	SCI
语种	英语
WOS记录号	WOS:000379812200011
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/17105]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re 2.Univ Chinese Acad Sci 3.CSIRO Oceans & Atmosphere 4.Western Australian Marine Sci Inst 5.Western Australian Marine Sci Inst 6.Univ La Rochelle
推荐引用方式 GB/T 7714	Liu, DY,Peng, YJ,Keesing, JK,et al. Paleo-ecological analyses to assess long-term environmental effects of pearl farming in Western Australia[J]. MARINE ECOLOGY PROGRESS SERIES,2016,552:145-158.
APA	Liu, DY,Peng, YJ,Keesing, JK,Wang, YJ,&Richard, P.(2016).Paleo-ecological analyses to assess long-term environmental effects of pearl farming in Western Australia.MARINE ECOLOGY PROGRESS SERIES,552,145-158.
MLA	Liu, DY,et al."Paleo-ecological analyses to assess long-term environmental effects of pearl farming in Western Australia".MARINE ECOLOGY PROGRESS SERIES 552(2016):145-158.