Evaluation of sampling sizes on the intertidal macroinfauna assessment in a subtropical mudflat of Hong Kong

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	Evaluation of sampling sizes on the intertidal macroinfauna assessment in a subtropical mudflat of Hong Kong
	jdgu@hkucc.hku.hk; Shen, PP; Zhou, H; Zhao, ZY; Yu, XZ; Gu, JD
刊名	ECOTOXICOLOGY
	2012
卷号	21 期号:6 页码:1706-1716
关键词	Core Sampler Sampling Unit Macrofauna Assessment Intertidal Mudflat
ISSN号	0963-9292
英文摘要	In this study, two types of sediment cores with different diameters were used to collect sediment samples from an intertidal mudflat in Hong Kong to investigate the influence of sampling unit on the quantitative assessment of benthic macroinfaunal communities. Both univariate and multivariate analyses were employed to detect differences in sampling efficiencies by the two samplers through total abundance and biomass, species richness and diversity, community structure, relative abundance of major taxa of the infaunal community. The species-area curves were further compared to find out the influence of the sampling units. Results showed that the two sampling devices provided similar information on the estimates of species diversity, density and species composition of the benthos in main part of the mudflat where the sediment was fine and homogenous; but at the station which contained coarse sand and gravels, the significant differences were detected between the quantitative assessments of macrobenthic infauna by the two samplers. Most importantly, the species-area curves indicated that more and smaller samples were better in capturing more species than less large ones when comparing an equal sampling area. Therefore, the efficiency of the sampler largely depended on the sediment properties, and sampling devices must be chosen based on the physical conditions and desired levels of precision on the organisms of the sampling program.
学科主题	Ecology ; Environmental Sciences ; Toxicology
资助项目	LMB
语种	英语
WOS记录号	WOS:000306592100015
公开日期	2013-08-28
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/9848]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
通讯作者	jdgu@hkucc.hku.hk
推荐引用方式 GB/T 7714	jdgu@hkucc.hku.hk,Shen, PP,Zhou, H,et al. Evaluation of sampling sizes on the intertidal macroinfauna assessment in a subtropical mudflat of Hong Kong[J]. ECOTOXICOLOGY,2012,21(6):1706-1716.
APA	jdgu@hkucc.hku.hk,Shen, PP,Zhou, H,Zhao, ZY,Yu, XZ,&Gu, JD.(2012).Evaluation of sampling sizes on the intertidal macroinfauna assessment in a subtropical mudflat of Hong Kong.ECOTOXICOLOGY,21(6),1706-1716.
MLA	jdgu@hkucc.hku.hk,et al."Evaluation of sampling sizes on the intertidal macroinfauna assessment in a subtropical mudflat of Hong Kong".ECOTOXICOLOGY 21.6(2012):1706-1716.