Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket
1. The biomass and production of picophytoplankton, large phytoplankton and heterotrophic bacterioplankton were measured in humic Lake Örträsket, northern Sweden during four consecutive summers. 2. High flow episodes, carrying fresh dissolved organic carbon (DOC) into the lake, always stimulated het...
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2002
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crwiley:10.1046/j.1365-2427.2002.00779.x 2024-06-02T08:12:10+00:00 Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket Drakare, Stina Blomqvist, Peter Bergström, Ann‐Kristin Jansson, Mats 2002 http://dx.doi.org/10.1046/j.1365-2427.2002.00779.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2427.2002.00779.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2427.2002.00779.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Freshwater Biology volume 47, issue 1, page 41-52 ISSN 0046-5070 1365-2427 journal-article 2002 crwiley https://doi.org/10.1046/j.1365-2427.2002.00779.x 2024-05-03T11:32:05Z 1. The biomass and production of picophytoplankton, large phytoplankton and heterotrophic bacterioplankton were measured in humic Lake Örträsket, northern Sweden during four consecutive summers. 2. High flow episodes, carrying fresh dissolved organic carbon (DOC) into the lake, always stimulated heterotrophic bacterial production at the expense of primary production. Primary production never exceeded bacterial production for approximately 20 days after such an episode had replenished epilimnial DOC. We suggest that allochthonous DOC is an energy source that stimulates bacterioplankton that, because of their efficient uptake of inorganic nutrients, are then able to outcompete phytoplankton. After the exhaustion of readily available DOC, phytoplankton were able to dominate epilimnion production in Lake Örträsket. 3. Biomass production was higher when dominated by phytoplankton than by bacterioplankton, despite a similar utilization of nutrients in the epilimnion throughout the summer. We propose that different C : N : P ratios of bacterioplankton and phytoplankton permit the latter to produce more carbon (C) biomass per unit of available inorganic nutrients than bacterioplankton. Article in Journal/Newspaper Northern Sweden Wiley Online Library Humic Lake ENVELOPE(-36.500,-36.500,-54.250,-54.250) Freshwater Biology 47 1 41 52 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
1. The biomass and production of picophytoplankton, large phytoplankton and heterotrophic bacterioplankton were measured in humic Lake Örträsket, northern Sweden during four consecutive summers. 2. High flow episodes, carrying fresh dissolved organic carbon (DOC) into the lake, always stimulated heterotrophic bacterial production at the expense of primary production. Primary production never exceeded bacterial production for approximately 20 days after such an episode had replenished epilimnial DOC. We suggest that allochthonous DOC is an energy source that stimulates bacterioplankton that, because of their efficient uptake of inorganic nutrients, are then able to outcompete phytoplankton. After the exhaustion of readily available DOC, phytoplankton were able to dominate epilimnion production in Lake Örträsket. 3. Biomass production was higher when dominated by phytoplankton than by bacterioplankton, despite a similar utilization of nutrients in the epilimnion throughout the summer. We propose that different C : N : P ratios of bacterioplankton and phytoplankton permit the latter to produce more carbon (C) biomass per unit of available inorganic nutrients than bacterioplankton. |
format |
Article in Journal/Newspaper |
author |
Drakare, Stina Blomqvist, Peter Bergström, Ann‐Kristin Jansson, Mats |
spellingShingle |
Drakare, Stina Blomqvist, Peter Bergström, Ann‐Kristin Jansson, Mats Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket |
author_facet |
Drakare, Stina Blomqvist, Peter Bergström, Ann‐Kristin Jansson, Mats |
author_sort |
Drakare, Stina |
title |
Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket |
title_short |
Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket |
title_full |
Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket |
title_fullStr |
Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket |
title_full_unstemmed |
Primary production and phytoplankton composition in relation to DOC input and bacterioplankton production in humic Lake Örträsket |
title_sort |
primary production and phytoplankton composition in relation to doc input and bacterioplankton production in humic lake örträsket |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1046/j.1365-2427.2002.00779.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2427.2002.00779.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2427.2002.00779.x |
long_lat |
ENVELOPE(-36.500,-36.500,-54.250,-54.250) |
geographic |
Humic Lake |
geographic_facet |
Humic Lake |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Freshwater Biology volume 47, issue 1, page 41-52 ISSN 0046-5070 1365-2427 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2427.2002.00779.x |
container_title |
Freshwater Biology |
container_volume |
47 |
container_issue |
1 |
container_start_page |
41 |
op_container_end_page |
52 |
_version_ |
1800758525772693504 |