Temporal and spatial variations in the polychaete (Annelida) populations on the upper continental slope of the northern Gulf of Mexico

doi:10.1016/j.dsr.2016.12.002

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	Temporal and spatial variations in the polychaete (Annelida) populations on the upper continental slope of the northern Gulf of Mexico
	Qu, Fangyuan 1,2,3; Wang, Yuning 3,4; Rowe, Gilbert T.3,4
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2017-01
卷号	119 页码:91-99
关键词	Polychaete worms Gulf of Mexico Temporal variations Beta diversity Upper continental slope Depth zonation
ISSN号	0967-0637
DOI	10.1016/j.dsr.2016.12.002
英文摘要	Polychaete worms (Annelida), the dominant macrofaunal taxon in most fine-grained marine sediments, were sampled in 1983-85 and then again in 2000-02 at nine locations at depths of 324-1454 rn. on the upper continental slope of the northern Gulf of Mexico (GoM). The assemblages exhibited relative stability in abundance and diversity, but fell into six separate groups of species (>35% similarity) that were related to time of-sampling, location, depth. This depth gradient experiences an increase in oxygen from 2.5 to 4.5 ml/L, a six degree decrease in temperature (10-12 degrees down to 4 degrees C) and a decline of 30-37 mg C m(-2) day(-1) down to 7 mg C m(-2) day(-1) in estimates of the particulate organic carbon (POC) input to the sea floor, but these steep gradients had secondary effects on species turnover or depth-related zonation (Beta diversity). The species composition of four of the six groups was separated on the basis of sampling between 1983-85 and 2000-02 as opposed to depth or location. The species composition of the two groups on the eastern transect was different from the western sites and the two eastern groups differed in species composition from each other between 1983-85 and 2000-02. The two groups of species at the three deeper sites to the west (864-1410 m) were also separated on the basis of time-of-sampling but the group of species located at the three shallow locations (324-625 m) was not; it was a mixture of the two sampling periods. Significantly higher densities (p < 0.05) in April 1984, on the eastern transect, suggest that seasonal recruitment may have occurred but the higher densities were attributed to only two species.
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000393256400009
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3255]
专题	业务部门_海洋生态研究中心
作者单位	1.State Ocean Adm, First Inst Oceanog, 6 Xianxialing Rd, Qingdao 266061, Peoples R China; 2.Qingdao Waterl Mfg Co Ltd, 10 Jinling Rd, Qingdao 266000, Peoples R China; 3.Texas A&M Univ Galveston, Dept Marine Biol, Galveston, TX 77553 USA; 4.Texas A&M, Dept Oceanog, College Stn, TX 78543 USA
推荐引用方式 GB/T 7714	Qu, Fangyuan,Wang, Yuning,Rowe, Gilbert T.. Temporal and spatial variations in the polychaete (Annelida) populations on the upper continental slope of the northern Gulf of Mexico[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2017,119:91-99.
APA	Qu, Fangyuan,Wang, Yuning,&Rowe, Gilbert T..(2017).Temporal and spatial variations in the polychaete (Annelida) populations on the upper continental slope of the northern Gulf of Mexico.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,119,91-99.
MLA	Qu, Fangyuan,et al."Temporal and spatial variations in the polychaete (Annelida) populations on the upper continental slope of the northern Gulf of Mexico".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 119(2017):91-99.