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Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica
Yang, Guang1,2,3; Han, Zhengbing4; Pan, Jianming4; Zhou, Konglin4,5; Wang, Yanqing1,2,3; Li, Chaolun1,2,3,6
2019-06-30
Source PublicationESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
Volume222Pages:139-146
Corresponding AuthorLi, Chaolun(lcl@qdio.ac.cn)
AbstractSeasonal 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.
KeywordZooplankton Faecal pellet Carbon flux Pteropods Prydz Bay
DOI10.1016/j.ecss.2019.04.006
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000468256400013
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/156963
Collection海洋生态与环境科学重点实验室
Corresponding AuthorLi, Chaolun
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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