Effects of forest fertilization on phytoplankton in a boreal brown-water lake
The quantity and composition of phytoplankton in a brown-water lake was studied from 1988 to 1994 after forest fertilization in its catchment area. The following spring after fertilization, phosphorus concentrations were high (in average 18 ug l–1), and an evident vernal maximum of phytoplankton (ch...
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Boreal Environment Research Publishing Board
2024
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Online Access: | http://hdl.handle.net/10138/578006 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/578006 2024-09-09T19:34:21+00:00 Effects of forest fertilization on phytoplankton in a boreal brown-water lake Lepistö, L. Saura, M. 2024-06-27T13:44:30Z 33-43 application/pdf http://hdl.handle.net/10138/578006 eng eng Boreal Environment Research Publishing Board Boreal Environment Research 1239-6095 1797-2469 1 3 http://hdl.handle.net/10138/578006 Suomen ympäristökeskus CC BY 4.0 openAccess Artikkeli lehdessä 2024 ftunivhelsihelda 2024-08-21T23:48:04Z The quantity and composition of phytoplankton in a brown-water lake was studied from 1988 to 1994 after forest fertilization in its catchment area. The following spring after fertilization, phosphorus concentrations were high (in average 18 ug l–1), and an evident vernal maximum of phytoplankton (chrysophytes and diatoms) was observed, but no further signs of trophicity changes could be observed. The extra nutrients must have been quickly utilized by bacteria or transported out of the lake through the out-flowing brook during the spring high-flow. Mixotrophic algae, like e.g. Cryptomonas spp. and Gonyostomum semen, were the ones to mostly benefit from the increased amounts of organic compounds and nutrient concentrations. The typical brown-water lake phytoplankton composition, in general did not change during the study period. Article in Journal/Newspaper Boreal Environment Research HELDA – University of Helsinki Open Repository Brown Water Lake ENVELOPE(-115.985,-115.985,64.584,64.584) |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
description |
The quantity and composition of phytoplankton in a brown-water lake was studied from 1988 to 1994 after forest fertilization in its catchment area. The following spring after fertilization, phosphorus concentrations were high (in average 18 ug l–1), and an evident vernal maximum of phytoplankton (chrysophytes and diatoms) was observed, but no further signs of trophicity changes could be observed. The extra nutrients must have been quickly utilized by bacteria or transported out of the lake through the out-flowing brook during the spring high-flow. Mixotrophic algae, like e.g. Cryptomonas spp. and Gonyostomum semen, were the ones to mostly benefit from the increased amounts of organic compounds and nutrient concentrations. The typical brown-water lake phytoplankton composition, in general did not change during the study period. |
format |
Article in Journal/Newspaper |
author |
Lepistö, L. Saura, M. |
spellingShingle |
Lepistö, L. Saura, M. Effects of forest fertilization on phytoplankton in a boreal brown-water lake |
author_facet |
Lepistö, L. Saura, M. |
author_sort |
Lepistö, L. |
title |
Effects of forest fertilization on phytoplankton in a boreal brown-water lake |
title_short |
Effects of forest fertilization on phytoplankton in a boreal brown-water lake |
title_full |
Effects of forest fertilization on phytoplankton in a boreal brown-water lake |
title_fullStr |
Effects of forest fertilization on phytoplankton in a boreal brown-water lake |
title_full_unstemmed |
Effects of forest fertilization on phytoplankton in a boreal brown-water lake |
title_sort |
effects of forest fertilization on phytoplankton in a boreal brown-water lake |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/578006 |
long_lat |
ENVELOPE(-115.985,-115.985,64.584,64.584) |
geographic |
Brown Water Lake |
geographic_facet |
Brown Water Lake |
genre |
Boreal Environment Research |
genre_facet |
Boreal Environment Research |
op_relation |
Boreal Environment Research 1239-6095 1797-2469 1 3 http://hdl.handle.net/10138/578006 Suomen ympäristökeskus |
op_rights |
CC BY 4.0 openAccess |
_version_ |
1809903843141484544 |