Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica
The feeding of the cladoceran Daphniopsis studeri on algae and bacteria was investigated under ice in an ultra-oligotrophic Antarctic lake from late autumn (May) to early spring (October) in 2004. D. studeri fed on both algae and bacteria with estimated filtering rates of 0.048 and 0.061 l ind(-1) d...
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Online Access: | https://lup.lub.lu.se/record/1477532 https://doi.org/10.1007/s00300-009-0619-0 |
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ftulundlup:oai:lup.lub.lu.se:6677bfb4-b30f-4d94-9ad1-4053a1caf11b 2023-05-15T13:39:35+02:00 Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica Säwström, Christin Karlsson, Jan Laybourn-Parry, Johanna Granéli, Wilhelm 2009 https://lup.lub.lu.se/record/1477532 https://doi.org/10.1007/s00300-009-0619-0 eng eng Springer https://lup.lub.lu.se/record/1477532 http://dx.doi.org/10.1007/s00300-009-0619-0 wos:000268787700010 scopus:70349857920 Polar Biology; 32(8), pp 1195-1202 (2009) ISSN: 1432-2056 Ecology Zooplankton Algae Antarctic lake Bacteria Feeding rates contributiontojournal/article info:eu-repo/semantics/article text 2009 ftulundlup https://doi.org/10.1007/s00300-009-0619-0 2023-02-01T23:28:23Z The feeding of the cladoceran Daphniopsis studeri on algae and bacteria was investigated under ice in an ultra-oligotrophic Antarctic lake from late autumn (May) to early spring (October) in 2004. D. studeri fed on both algae and bacteria with estimated filtering rates of 0.048 and 0.061 l ind(-1) day(-1)), respectively. Algae seemed to be the major food resource for the D. studeri population, however at times of low algal densities the bacterioplankton represented an important alternative food resource. The D. studeri grazing impact on the algal and bacterial standing stock was in general low (0.6-4.6% removed per day), but during the winter period this organism can remove up to 34% of the bacterial production (BP). At times D. studeri grazing can temporarily have a significant impact on the BP rates, though their impact was relatively low when compared to viral-induced bacterial mortality in the lake. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Polar Biology Lund University Publications (LUP) Antarctic East Antarctica Lake Druzhby ENVELOPE(78.314,78.314,-68.593,-68.593) Polar Biology 32 8 1195 1202 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Zooplankton Algae Antarctic lake Bacteria Feeding rates |
spellingShingle |
Ecology Zooplankton Algae Antarctic lake Bacteria Feeding rates Säwström, Christin Karlsson, Jan Laybourn-Parry, Johanna Granéli, Wilhelm Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica |
topic_facet |
Ecology Zooplankton Algae Antarctic lake Bacteria Feeding rates |
description |
The feeding of the cladoceran Daphniopsis studeri on algae and bacteria was investigated under ice in an ultra-oligotrophic Antarctic lake from late autumn (May) to early spring (October) in 2004. D. studeri fed on both algae and bacteria with estimated filtering rates of 0.048 and 0.061 l ind(-1) day(-1)), respectively. Algae seemed to be the major food resource for the D. studeri population, however at times of low algal densities the bacterioplankton represented an important alternative food resource. The D. studeri grazing impact on the algal and bacterial standing stock was in general low (0.6-4.6% removed per day), but during the winter period this organism can remove up to 34% of the bacterial production (BP). At times D. studeri grazing can temporarily have a significant impact on the BP rates, though their impact was relatively low when compared to viral-induced bacterial mortality in the lake. |
format |
Article in Journal/Newspaper |
author |
Säwström, Christin Karlsson, Jan Laybourn-Parry, Johanna Granéli, Wilhelm |
author_facet |
Säwström, Christin Karlsson, Jan Laybourn-Parry, Johanna Granéli, Wilhelm |
author_sort |
Säwström, Christin |
title |
Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica |
title_short |
Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica |
title_full |
Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica |
title_fullStr |
Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica |
title_full_unstemmed |
Zooplankton feeding on algae and bacteria under ice in Lake Druzhby, East Antarctica |
title_sort |
zooplankton feeding on algae and bacteria under ice in lake druzhby, east antarctica |
publisher |
Springer |
publishDate |
2009 |
url |
https://lup.lub.lu.se/record/1477532 https://doi.org/10.1007/s00300-009-0619-0 |
long_lat |
ENVELOPE(78.314,78.314,-68.593,-68.593) |
geographic |
Antarctic East Antarctica Lake Druzhby |
geographic_facet |
Antarctic East Antarctica Lake Druzhby |
genre |
Antarc* Antarctic Antarctica East Antarctica Polar Biology |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Polar Biology |
op_source |
Polar Biology; 32(8), pp 1195-1202 (2009) ISSN: 1432-2056 |
op_relation |
https://lup.lub.lu.se/record/1477532 http://dx.doi.org/10.1007/s00300-009-0619-0 wos:000268787700010 scopus:70349857920 |
op_doi |
https://doi.org/10.1007/s00300-009-0619-0 |
container_title |
Polar Biology |
container_volume |
32 |
container_issue |
8 |
container_start_page |
1195 |
op_container_end_page |
1202 |
_version_ |
1766120569187598336 |