The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment
SUMMARY. Sediment from a precursor of the 2300‐year old Lake Mývatn was traced by diatoms in pseudocrater scoria. This lake (Mývatn I) was deeper than the present Mývatn but similar in size. Tephrochronology confirms an equal age of the Ytrlflói and Sydrifloi basins of the present Mývatn. Diatom suc...
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Online Access: | http://dx.doi.org/10.1111/j.1365-2427.1982.tb00603.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2427.1982.tb00603.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2427.1982.tb00603.x |
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crwiley:10.1111/j.1365-2427.1982.tb00603.x 2024-06-23T07:54:01+00:00 The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment EINARSSON, ÁRNI 1982 http://dx.doi.org/10.1111/j.1365-2427.1982.tb00603.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2427.1982.tb00603.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2427.1982.tb00603.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Freshwater Biology volume 12, issue 1, page 63-82 ISSN 0046-5070 1365-2427 journal-article 1982 crwiley https://doi.org/10.1111/j.1365-2427.1982.tb00603.x 2024-06-04T06:48:27Z SUMMARY. Sediment from a precursor of the 2300‐year old Lake Mývatn was traced by diatoms in pseudocrater scoria. This lake (Mývatn I) was deeper than the present Mývatn but similar in size. Tephrochronology confirms an equal age of the Ytrlflói and Sydrifloi basins of the present Mývatn. Diatom succession in the sediment of the Sydriflói basin was divided into four zones, of which the lowest corresponds to inherited and highly disturbed Mývatn I sediment. At 90 cm depth, i.e. around 1600 AD, in the Sydriflói sediment a simultaneous increase occurred in Cladophora aegagropila (Chlorophyta), Eurycercus lamellatus (Cladocera) and three diatom species epiphytic on Cladophora. The density of Cladocera also followed this trend. The increase in Cladophora was perhaps caused by improved light conditions on the bottom, either because of a decrease in water depth due to sedimentation, or a decrease in Anabaena blooms, or both. Article in Journal/Newspaper Iceland Mývatn Wiley Online Library Mývatn ENVELOPE(-16.985,-16.985,65.600,65.600) Freshwater Biology 12 1 63 82 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
SUMMARY. Sediment from a precursor of the 2300‐year old Lake Mývatn was traced by diatoms in pseudocrater scoria. This lake (Mývatn I) was deeper than the present Mývatn but similar in size. Tephrochronology confirms an equal age of the Ytrlflói and Sydrifloi basins of the present Mývatn. Diatom succession in the sediment of the Sydriflói basin was divided into four zones, of which the lowest corresponds to inherited and highly disturbed Mývatn I sediment. At 90 cm depth, i.e. around 1600 AD, in the Sydriflói sediment a simultaneous increase occurred in Cladophora aegagropila (Chlorophyta), Eurycercus lamellatus (Cladocera) and three diatom species epiphytic on Cladophora. The density of Cladocera also followed this trend. The increase in Cladophora was perhaps caused by improved light conditions on the bottom, either because of a decrease in water depth due to sedimentation, or a decrease in Anabaena blooms, or both. |
format |
Article in Journal/Newspaper |
author |
EINARSSON, ÁRNI |
spellingShingle |
EINARSSON, ÁRNI The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment |
author_facet |
EINARSSON, ÁRNI |
author_sort |
EINARSSON, ÁRNI |
title |
The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment |
title_short |
The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment |
title_full |
The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment |
title_fullStr |
The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment |
title_full_unstemmed |
The palaeolimnology of Lake Mývatn, northern Iceland: plant and animal microfossils in the sediment |
title_sort |
palaeolimnology of lake mývatn, northern iceland: plant and animal microfossils in the sediment |
publisher |
Wiley |
publishDate |
1982 |
url |
http://dx.doi.org/10.1111/j.1365-2427.1982.tb00603.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2427.1982.tb00603.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2427.1982.tb00603.x |
long_lat |
ENVELOPE(-16.985,-16.985,65.600,65.600) |
geographic |
Mývatn |
geographic_facet |
Mývatn |
genre |
Iceland Mývatn |
genre_facet |
Iceland Mývatn |
op_source |
Freshwater Biology volume 12, issue 1, page 63-82 ISSN 0046-5070 1365-2427 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2427.1982.tb00603.x |
container_title |
Freshwater Biology |
container_volume |
12 |
container_issue |
1 |
container_start_page |
63 |
op_container_end_page |
82 |
_version_ |
1802645938492145664 |