Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula
Zooplankton fecal pellet contribution to particulate organic carbon (POC) flux over the continental shelf of the western Antarctic Peninsula (WAP) was investigated to better understand the possible effects of changes in zooplankton community structure, due to climate change, on carbon export. Fecal...
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1116 2024-06-23T07:45:55+00:00 Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula Gleiber, Miram R. Steinberg, Deborah K. Ducklow, Hugh W. 2012-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/117 doi: 10.3354/meps10021 https://scholarworks.wm.edu/context/vimsarticles/article/1116/viewcontent/m471p023.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/117 doi: 10.3354/meps10021 https://scholarworks.wm.edu/context/vimsarticles/article/1116/viewcontent/m471p023.pdf VIMS Articles Southern Ocean Particle flux Sediment trap Krill Salp Copepod Climate Biological Sciences Peer-Reviewed Articles Marine Biology text 2012 ftwilliammarycol https://doi.org/10.3354/meps10021 2024-06-05T03:30:42Z Zooplankton fecal pellet contribution to particulate organic carbon (POC) flux over the continental shelf of the western Antarctic Peninsula (WAP) was investigated to better understand the possible effects of changes in zooplankton community structure, due to climate change, on carbon export. Fecal pellets were collected at 170 m depth in a moored sediment trap from January 2004 to January 2009. Fecal pellet shape and size (i.e., carbon content) were quantified to assess flux of pellets from different zooplankton taxa and compared between seasons and years. Fecal pellet POC constituted the dominant proportion of total POC flux, with summer (November to April) pellet POC flux (67%) significantly higher than winter (May to October) pellet POC flux (34%), while phytodetritus or fecal 'fluff' constituted the remainder. Cylindrical euphausiid pellets contributed to a monthly mean of 72% of total fecal pellet flux; ovoid copepod and tabular salp pellets contributed significantly less (22 and 6%, respectively). Cylindrical and ovoid pellet export was significantly higher in summer, while 48% of tabular pellet flux occurred in winter. Tabular pellets had the highest carbon content (median = 1.03 mu gC pellet(-1), highest 134.9 mu gC pellet(-1)), followed by cylindrical (0.20 mu gC pellet(-1)) and ovoid (0.04 mu gC pellet(-1)) pellets. As krill fecal pellets are the dominant component of particle export in the WAP, we hypothesize that a decrease in krill and increase in salps in the region could alter the export of POC to the deep sea. Text Antarc* Antarctic Antarctic Peninsula Southern Ocean W&M ScholarWorks Antarctic Antarctic Peninsula Southern Ocean Marine Ecology Progress Series 471 23 36 |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
Southern Ocean Particle flux Sediment trap Krill Salp Copepod Climate Biological Sciences Peer-Reviewed Articles Marine Biology |
spellingShingle |
Southern Ocean Particle flux Sediment trap Krill Salp Copepod Climate Biological Sciences Peer-Reviewed Articles Marine Biology Gleiber, Miram R. Steinberg, Deborah K. Ducklow, Hugh W. Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula |
topic_facet |
Southern Ocean Particle flux Sediment trap Krill Salp Copepod Climate Biological Sciences Peer-Reviewed Articles Marine Biology |
description |
Zooplankton fecal pellet contribution to particulate organic carbon (POC) flux over the continental shelf of the western Antarctic Peninsula (WAP) was investigated to better understand the possible effects of changes in zooplankton community structure, due to climate change, on carbon export. Fecal pellets were collected at 170 m depth in a moored sediment trap from January 2004 to January 2009. Fecal pellet shape and size (i.e., carbon content) were quantified to assess flux of pellets from different zooplankton taxa and compared between seasons and years. Fecal pellet POC constituted the dominant proportion of total POC flux, with summer (November to April) pellet POC flux (67%) significantly higher than winter (May to October) pellet POC flux (34%), while phytodetritus or fecal 'fluff' constituted the remainder. Cylindrical euphausiid pellets contributed to a monthly mean of 72% of total fecal pellet flux; ovoid copepod and tabular salp pellets contributed significantly less (22 and 6%, respectively). Cylindrical and ovoid pellet export was significantly higher in summer, while 48% of tabular pellet flux occurred in winter. Tabular pellets had the highest carbon content (median = 1.03 mu gC pellet(-1), highest 134.9 mu gC pellet(-1)), followed by cylindrical (0.20 mu gC pellet(-1)) and ovoid (0.04 mu gC pellet(-1)) pellets. As krill fecal pellets are the dominant component of particle export in the WAP, we hypothesize that a decrease in krill and increase in salps in the region could alter the export of POC to the deep sea. |
format |
Text |
author |
Gleiber, Miram R. Steinberg, Deborah K. Ducklow, Hugh W. |
author_facet |
Gleiber, Miram R. Steinberg, Deborah K. Ducklow, Hugh W. |
author_sort |
Gleiber, Miram R. |
title |
Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula |
title_short |
Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula |
title_full |
Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula |
title_fullStr |
Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula |
title_full_unstemmed |
Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula |
title_sort |
time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western antarctic peninsula |
publisher |
W&M ScholarWorks |
publishDate |
2012 |
url |
https://scholarworks.wm.edu/vimsarticles/117 https://scholarworks.wm.edu/context/vimsarticles/article/1116/viewcontent/m471p023.pdf |
geographic |
Antarctic Antarctic Peninsula Southern Ocean |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/117 doi: 10.3354/meps10021 https://scholarworks.wm.edu/context/vimsarticles/article/1116/viewcontent/m471p023.pdf |
op_doi |
https://doi.org/10.3354/meps10021 |
container_title |
Marine Ecology Progress Series |
container_volume |
471 |
container_start_page |
23 |
op_container_end_page |
36 |
_version_ |
1802642979560620032 |