A community of epiphytic diatoms living on low irradiances
22 samples of the benthic plant Nitella flexilis collected fortnightly in Grane Langsø from July 1959 to June 1960 were examined for epiphytic diatoms. The relative abundance of every taxon was determined by counting 400 valves from each of the Nitella samples. The species composition of the diatom...
Published in: | Nordic Journal of Botany |
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Language: | English |
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1994
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crwiley:10.1111/j.1756-1051.1994.tb00618.x 2023-12-03T10:26:13+01:00 A community of epiphytic diatoms living on low irradiances Nygaard, Gunnar 1994 http://dx.doi.org/10.1111/j.1756-1051.1994.tb00618.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1994.tb00618.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1994.tb00618.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Nordic Journal of Botany volume 14, issue 3, page 345-360 ISSN 0107-055X 1756-1051 Plant Science Ecology, Evolution, Behavior and Systematics journal-article 1994 crwiley https://doi.org/10.1111/j.1756-1051.1994.tb00618.x 2023-11-09T13:42:02Z 22 samples of the benthic plant Nitella flexilis collected fortnightly in Grane Langsø from July 1959 to June 1960 were examined for epiphytic diatoms. The relative abundance of every taxon was determined by counting 400 valves from each of the Nitella samples. The species composition of the diatom assemblages seemed unchanged throughout the year. A clear seasonal periodicity in relative abundance could not be proved for any of the diatoms in spite of a variation in the irradiance from about 8–10 cal.cm ‐2 day ‐1 in June‐July to 0.1–0.2 cal.cm ‐2 day ‐1 in February. The diatoms were living on a yearly PAR‐irradiance of only 1000 cal.cm ‐2 year ‐1 , which is 2.2% of that at the lake surface. The seasonal fluctuations in C0 2 and pH in 11.25 m subsurface depth are shown by diagrams. Diatom inferred pH is compared with measured pH. Article in Journal/Newspaper Nitella flexilis Wiley Online Library (via Crossref) Grane ENVELOPE(13.385,13.385,65.539,65.539) Langsø ENVELOPE(-20.750,-20.750,75.817,75.817) Nordic Journal of Botany 14 3 345 360 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology, Evolution, Behavior and Systematics Nygaard, Gunnar A community of epiphytic diatoms living on low irradiances |
topic_facet |
Plant Science Ecology, Evolution, Behavior and Systematics |
description |
22 samples of the benthic plant Nitella flexilis collected fortnightly in Grane Langsø from July 1959 to June 1960 were examined for epiphytic diatoms. The relative abundance of every taxon was determined by counting 400 valves from each of the Nitella samples. The species composition of the diatom assemblages seemed unchanged throughout the year. A clear seasonal periodicity in relative abundance could not be proved for any of the diatoms in spite of a variation in the irradiance from about 8–10 cal.cm ‐2 day ‐1 in June‐July to 0.1–0.2 cal.cm ‐2 day ‐1 in February. The diatoms were living on a yearly PAR‐irradiance of only 1000 cal.cm ‐2 year ‐1 , which is 2.2% of that at the lake surface. The seasonal fluctuations in C0 2 and pH in 11.25 m subsurface depth are shown by diagrams. Diatom inferred pH is compared with measured pH. |
format |
Article in Journal/Newspaper |
author |
Nygaard, Gunnar |
author_facet |
Nygaard, Gunnar |
author_sort |
Nygaard, Gunnar |
title |
A community of epiphytic diatoms living on low irradiances |
title_short |
A community of epiphytic diatoms living on low irradiances |
title_full |
A community of epiphytic diatoms living on low irradiances |
title_fullStr |
A community of epiphytic diatoms living on low irradiances |
title_full_unstemmed |
A community of epiphytic diatoms living on low irradiances |
title_sort |
community of epiphytic diatoms living on low irradiances |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1756-1051.1994.tb00618.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1994.tb00618.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1994.tb00618.x |
long_lat |
ENVELOPE(13.385,13.385,65.539,65.539) ENVELOPE(-20.750,-20.750,75.817,75.817) |
geographic |
Grane Langsø |
geographic_facet |
Grane Langsø |
genre |
Nitella flexilis |
genre_facet |
Nitella flexilis |
op_source |
Nordic Journal of Botany volume 14, issue 3, page 345-360 ISSN 0107-055X 1756-1051 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1756-1051.1994.tb00618.x |
container_title |
Nordic Journal of Botany |
container_volume |
14 |
container_issue |
3 |
container_start_page |
345 |
op_container_end_page |
360 |
_version_ |
1784275445539143680 |