Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica
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 zooplank...
Published in: | Estuarine, Coastal and Shelf Science |
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Format: | Report |
Language: | English |
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ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
2019
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Online Access: | http://ir.qdio.ac.cn/handle/337002/156962 http://ir.qdio.ac.cn/handle/337002/156963 https://doi.org/10.1016/j.ecss.2019.04.006 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/156963 2023-05-15T14:03:36+02:00 Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica Yang, Guang Han, Zhengbing Pan, Jianming Zhou, Konglin Wang, Yanqing Li, Chaolun 2019-06-30 http://ir.qdio.ac.cn/handle/337002/156962 http://ir.qdio.ac.cn/handle/337002/156963 https://doi.org/10.1016/j.ecss.2019.04.006 英语 eng ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD ESTUARINE COASTAL AND SHELF SCIENCE http://ir.qdio.ac.cn/handle/337002/156962 http://ir.qdio.ac.cn/handle/337002/156963 doi:10.1016/j.ecss.2019.04.006 Zooplankton Faecal pellet Carbon flux Pteropods Prydz Bay Marine & Freshwater Biology Oceanography 期刊论文 2019 ftchinacasciocas https://doi.org/10.1016/j.ecss.2019.04.006 2022-06-27T05:39:18Z 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. Report Antarc* Antarctica Limacina helicina Prydz Bay Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Austral Prydz Bay Estuarine, Coastal and Shelf Science 222 139 146 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Zooplankton Faecal pellet Carbon flux Pteropods Prydz Bay Marine & Freshwater Biology Oceanography |
spellingShingle |
Zooplankton Faecal pellet Carbon flux Pteropods Prydz Bay Marine & Freshwater Biology Oceanography Yang, Guang Han, Zhengbing Pan, Jianming Zhou, Konglin Wang, Yanqing Li, Chaolun Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica |
topic_facet |
Zooplankton Faecal pellet Carbon flux Pteropods Prydz Bay Marine & Freshwater Biology Oceanography |
description |
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. |
format |
Report |
author |
Yang, Guang Han, Zhengbing Pan, Jianming Zhou, Konglin Wang, Yanqing Li, Chaolun |
author_facet |
Yang, Guang Han, Zhengbing Pan, Jianming Zhou, Konglin Wang, Yanqing Li, Chaolun |
author_sort |
Yang, Guang |
title |
Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica |
title_short |
Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica |
title_full |
Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica |
title_fullStr |
Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica |
title_full_unstemmed |
Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica |
title_sort |
contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of prydz bay, antarctica |
publisher |
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
publishDate |
2019 |
url |
http://ir.qdio.ac.cn/handle/337002/156962 http://ir.qdio.ac.cn/handle/337002/156963 https://doi.org/10.1016/j.ecss.2019.04.006 |
geographic |
Austral Prydz Bay |
geographic_facet |
Austral Prydz Bay |
genre |
Antarc* Antarctica Limacina helicina Prydz Bay |
genre_facet |
Antarc* Antarctica Limacina helicina Prydz Bay |
op_relation |
ESTUARINE COASTAL AND SHELF SCIENCE http://ir.qdio.ac.cn/handle/337002/156962 http://ir.qdio.ac.cn/handle/337002/156963 doi:10.1016/j.ecss.2019.04.006 |
op_doi |
https://doi.org/10.1016/j.ecss.2019.04.006 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
222 |
container_start_page |
139 |
op_container_end_page |
146 |
_version_ |
1766274312187150336 |