Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean
12 pages, 5 figures, 3 tables Bacterivory was determined in surface waters of Franklin Bay, western Arctic, over a seasonal ice-covered period (winter–spring, 2003–2004). The objectives were to obtain information on the functioning of the microbial food web under the ice, during winter (from 21 Dece...
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American Society of Limnology and Oceanography
2008
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Online Access: | http://hdl.handle.net/10261/15610 https://doi.org/10.4319/lo.2008.53.6.2427 |
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ftcsic:oai:digital.csic.es:10261/15610 2024-02-11T10:00:51+01:00 Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean Vaqué, Dolors Guadayol, Òscar Peters, Francesc Felipe, Jordi Angel-Ripoll, Laia Terrado, Ramon Lovejoy, Connie Pedrós-Alió, Carlos 2008-11 22195 bytes application/pdf http://hdl.handle.net/10261/15610 https://doi.org/10.4319/lo.2008.53.6.2427 en eng American Society of Limnology and Oceanography https://doi.org/10.4319/lo.2008.53.6.2427 Limnology and Oceanography 53(6): 2427-2438 (2008) 0024-3590 http://hdl.handle.net/10261/15610 doi:10.4319/lo.2008.53.6.2427 open artículo http://purl.org/coar/resource_type/c_6501 2008 ftcsic https://doi.org/10.4319/lo.2008.53.6.2427 2024-01-16T09:23:07Z 12 pages, 5 figures, 3 tables Bacterivory was determined in surface waters of Franklin Bay, western Arctic, over a seasonal ice-covered period (winter–spring, 2003–2004). The objectives were to obtain information on the functioning of the microbial food web under the ice, during winter (from 21 December 2003 to 21 March 2004) and during spring (from 22 March 2004 to 29 May 2004), and to test whether bacterial losses would increase after the increase in bacterial production following the spring phytoplankton bloom. Chl a concentrations ranged from 0.04 to 0.36 μg L-1, increasing in March and reaching a peak in April. Bacterial biomass showed no consistent trend for the whole period, and protist biomass followed a pattern similar to that of Chl a. Bacterial production increased 1 week after Chl a concentrations started to increase, while bacterivory rates increased very slightly. Average bacterivory rates in winter (0.16 ± 0.07 μg C L-1 d-1) were not significantly different from those in spring (0.29 ± 0.24 μg C L-1 d-1). Average bacterial production, on the other hand, was similar to bacterivory rates in winter (0.19 ± 0.38 μg C L-1 d-1), but higher than bacterivory in spring (0.93 ± 0.28 μg C L-1 d-1). Therefore, bacterial production was controlled by grazers during winter and by substrate concentration in spring. Financial support for this study was provided by grants from the Generalitat de Catalunya (DURSI 2003ACES00029/ANT), the Spanish Ministry of Science and Technology (REN2002-11565-E/ANT) both to C. Pedrós-Alió, and from the International Canadian Arctic Shelf Exchange Study project (CASES, PI L. Fortier). Peer reviewed Article in Journal/Newspaper Arctic Arctic Ocean Franklin Bay Phytoplankton Digital.CSIC (Spanish National Research Council) Arctic Arctic Ocean Limnology and Oceanography 53 6 2427 2438 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
12 pages, 5 figures, 3 tables Bacterivory was determined in surface waters of Franklin Bay, western Arctic, over a seasonal ice-covered period (winter–spring, 2003–2004). The objectives were to obtain information on the functioning of the microbial food web under the ice, during winter (from 21 December 2003 to 21 March 2004) and during spring (from 22 March 2004 to 29 May 2004), and to test whether bacterial losses would increase after the increase in bacterial production following the spring phytoplankton bloom. Chl a concentrations ranged from 0.04 to 0.36 μg L-1, increasing in March and reaching a peak in April. Bacterial biomass showed no consistent trend for the whole period, and protist biomass followed a pattern similar to that of Chl a. Bacterial production increased 1 week after Chl a concentrations started to increase, while bacterivory rates increased very slightly. Average bacterivory rates in winter (0.16 ± 0.07 μg C L-1 d-1) were not significantly different from those in spring (0.29 ± 0.24 μg C L-1 d-1). Average bacterial production, on the other hand, was similar to bacterivory rates in winter (0.19 ± 0.38 μg C L-1 d-1), but higher than bacterivory in spring (0.93 ± 0.28 μg C L-1 d-1). Therefore, bacterial production was controlled by grazers during winter and by substrate concentration in spring. Financial support for this study was provided by grants from the Generalitat de Catalunya (DURSI 2003ACES00029/ANT), the Spanish Ministry of Science and Technology (REN2002-11565-E/ANT) both to C. Pedrós-Alió, and from the International Canadian Arctic Shelf Exchange Study project (CASES, PI L. Fortier). Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Vaqué, Dolors Guadayol, Òscar Peters, Francesc Felipe, Jordi Angel-Ripoll, Laia Terrado, Ramon Lovejoy, Connie Pedrós-Alió, Carlos |
spellingShingle |
Vaqué, Dolors Guadayol, Òscar Peters, Francesc Felipe, Jordi Angel-Ripoll, Laia Terrado, Ramon Lovejoy, Connie Pedrós-Alió, Carlos Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean |
author_facet |
Vaqué, Dolors Guadayol, Òscar Peters, Francesc Felipe, Jordi Angel-Ripoll, Laia Terrado, Ramon Lovejoy, Connie Pedrós-Alió, Carlos |
author_sort |
Vaqué, Dolors |
title |
Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean |
title_short |
Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean |
title_full |
Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean |
title_fullStr |
Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean |
title_full_unstemmed |
Seasonal changes in planktonic bacterivory rates under the ice-covered coastal Arctic Ocean |
title_sort |
seasonal changes in planktonic bacterivory rates under the ice-covered coastal arctic ocean |
publisher |
American Society of Limnology and Oceanography |
publishDate |
2008 |
url |
http://hdl.handle.net/10261/15610 https://doi.org/10.4319/lo.2008.53.6.2427 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Franklin Bay Phytoplankton |
genre_facet |
Arctic Arctic Ocean Franklin Bay Phytoplankton |
op_relation |
https://doi.org/10.4319/lo.2008.53.6.2427 Limnology and Oceanography 53(6): 2427-2438 (2008) 0024-3590 http://hdl.handle.net/10261/15610 doi:10.4319/lo.2008.53.6.2427 |
op_rights |
open |
op_doi |
https://doi.org/10.4319/lo.2008.53.6.2427 |
container_title |
Limnology and Oceanography |
container_volume |
53 |
container_issue |
6 |
container_start_page |
2427 |
op_container_end_page |
2438 |
_version_ |
1790596576760037376 |