Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica

doi:10.1016/j.ecss.2019.04.006

IOCAS-IR

	Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica
	Yang, Guang 1,2,3; Han, Zhengbing 4; Pan, Jianming 4; Zhou, Konglin 4,5; Wang, Yanqing 1,2,3; Li, Chaolun 1,2,3,6
	2019-06-30
发表期刊	ESTUARINE COASTAL AND SHELF SCIENCE
ISSN	0272-7714
卷号	222 页码:139-146
通讯作者	Li, Chaolun(lcl@qdio.ac.cn)
摘要	Seasonal changes in the zooplankton swimmer (those actively swimming into sediment traps) and faecal pellet contribution to particulate organic carbon (POC) were analysed based on sediment trap samples deployed at 450 m in the polynya region of Prydz Bay during March 2013-February 2014. The zooplankton swimmer flux ranged from 6.18 ind m(-2) day(-1) to 20.00 ind m(-2) day(-1) and pteropods (mainly Limacina helicina) were the most abundant group. Part of the L. helicina population could make a large contribution to the organic carbon flux by passive sinking after death during the austral autumn and winter. The potential contribution of sinking L. helicina to the POC flux could reach 15.21% during winter. Four types of faecal pellets were found: cylindrical, round, ellipsoidal and ovoid. The faecal pellet carbon flux (0.01-4.36 mg C m(-2) day(-1)) contributed 5.54%-62.00% of the POC flux. Cylindrical faecal pellets, which had low abundance in winter but higher abundance in the early austral summer, were attributed to the ice krill Euphausia crystallorophias. The faecal pellet carbon flux showed a high value (1.03 mg C m(-2) day(-1)) but made little contribution (9.18%) to the POC flux during early summer (December) in relation to the large amount of ungrazed algae. The high faecal pellet carbon flux (1.98 mg C m(-2) day(-1)) during mid-summer (January) made the greatest contribution (62.00%) to the POC flux. During autumn and winter, the faecal pellet carbon flux was low and ovoid pellets (mostly generated by L. helicina) were the most abundant. The occurrence of intact fresh pellets and faecal fluff (degraded faecal pellets) in the winter samples suggested that zooplankton activities (diel vertical migration and fragmentation of faecal pellets) had an effect on the carbon flux. The results demonstrated that zooplankton could play an important role in the carbon flux in the polynya region of Prydz Bay.
关键词	Zooplankton Faecal pellet Carbon flux Pteropods Prydz Bay
DOI	10.1016/j.ecss.2019.04.006
收录类别	SCI
语种	英语
资助项目	Polar Project of State Oceanic Administration, China[CHINARE 2017-03] ; Aoshan Science and Technology Innovation Program, China[2015ASKJ02-02] ; National Science Foundation of China[41876217] ; National Science Foundation of China[41876217] ; Aoshan Science and Technology Innovation Program, China[2015ASKJ02-02] ; Polar Project of State Oceanic Administration, China[CHINARE 2017-03]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:000468256400013
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS关键词	TERRA-NOVA BAY ; PARTICULATE ORGANIC-CARBON ; LIFE-CYCLE STRATEGIES ; LIMACINA-HELICINA ; VERTICAL FLUX ; SOUTHERN-OCEAN ; EXPORT FLUX ; EUPHAUSIA-CRYSTALLOROPHIAS ; ROSS SEA ; COPEPOD
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/156961
通讯作者	Li, Chaolun
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 4.State Ocean Adm, Key Lab Marine Ecosyst & Biogeochem, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China 5.Minjiang Univ, Inst Oceanog, Fuzhou 350108, Fujian, Peoples R China 6.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Guang,Han, Zhengbing,Pan, Jianming,et al. Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2019,222:139-146.
APA	Yang, Guang,Han, Zhengbing,Pan, Jianming,Zhou, Konglin,Wang, Yanqing,&Li, Chaolun.(2019).Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica.ESTUARINE COASTAL AND SHELF SCIENCE,222,139-146.
MLA	Yang, Guang,et al."Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica".ESTUARINE COASTAL AND SHELF SCIENCE 222(2019):139-146.