Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan
The coloration of sea ice by the ice algae was studied at Mombetsu (44°20′N, 143°20′E) on the Okhotsk coast of Hokkaido and at Toetoko (44°11′N, 143°45′E) in a lagoon, Lake Saroma, which is also situated on the same coast, Hokkaido, Japan. Lake Saroma is usually covered with the ice between middle J...
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National Institute of Polar Research
1981
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ftdoajarticles:oai:doaj.org/article:1817599d976342f9824722747e471097 2023-05-15T14:02:40+02:00 Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan Takao Hoshiai Mitsuo Fukuchi 1981-01-01T00:00:00Z https://doi.org/10.15094/00008208 https://doaj.org/article/1817599d976342f9824722747e471097 EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00008208 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008208 0085-7289 2432-079X https://doaj.org/article/1817599d976342f9824722747e471097 Antarctic Record, Iss 71, Pp 113-120 (1981) Geography (General) G1-922 article 1981 ftdoajarticles https://doi.org/10.15094/00008208 2022-12-31T02:01:22Z The coloration of sea ice by the ice algae was studied at Mombetsu (44°20′N, 143°20′E) on the Okhotsk coast of Hokkaido and at Toetoko (44°11′N, 143°45′E) in a lagoon, Lake Saroma, which is also situated on the same coast, Hokkaido, Japan. Lake Saroma is usually covered with the ice between middle January and early April. A brown layer was found at the bottom of the sea ice in February from 1977 through 1980. The 1977's results showed that Fragilariopsis, Nitzschia, Thalassiosira and other pennate diatoms were dominant components of the ice algal community. Chlorophyll a and phaeopigment were detected from top to bottom of the sea ice of 20 to 40 cm thick and concentrated at the bottom part. The level of plant pigment concentration (25.88μg chl a/l) in the sea ice was higher than that of the sea water (0.09μg chl a/l). The increase of plant pigments with the lapse of time was observed, when the growth rate of the sea ice extremely decreased at ice thickness of 20 to 40cm. The present results agreed with the data obtained at Syowa Station, Antarctica, on the development of ice algal community. Article in Journal/Newspaper Antarc* Antarctica ice algae Sea ice Directory of Open Access Journals: DOAJ Articles Lagoon Lake ENVELOPE(-112.030,-112.030,55.899,55.899) Okhotsk Syowa Station |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Takao Hoshiai Mitsuo Fukuchi Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan |
topic_facet |
Geography (General) G1-922 |
description |
The coloration of sea ice by the ice algae was studied at Mombetsu (44°20′N, 143°20′E) on the Okhotsk coast of Hokkaido and at Toetoko (44°11′N, 143°45′E) in a lagoon, Lake Saroma, which is also situated on the same coast, Hokkaido, Japan. Lake Saroma is usually covered with the ice between middle January and early April. A brown layer was found at the bottom of the sea ice in February from 1977 through 1980. The 1977's results showed that Fragilariopsis, Nitzschia, Thalassiosira and other pennate diatoms were dominant components of the ice algal community. Chlorophyll a and phaeopigment were detected from top to bottom of the sea ice of 20 to 40 cm thick and concentrated at the bottom part. The level of plant pigment concentration (25.88μg chl a/l) in the sea ice was higher than that of the sea water (0.09μg chl a/l). The increase of plant pigments with the lapse of time was observed, when the growth rate of the sea ice extremely decreased at ice thickness of 20 to 40cm. The present results agreed with the data obtained at Syowa Station, Antarctica, on the development of ice algal community. |
format |
Article in Journal/Newspaper |
author |
Takao Hoshiai Mitsuo Fukuchi |
author_facet |
Takao Hoshiai Mitsuo Fukuchi |
author_sort |
Takao Hoshiai |
title |
Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan |
title_short |
Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan |
title_full |
Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan |
title_fullStr |
Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan |
title_full_unstemmed |
Sea ice colored by ice algae in a lagoon, Lake Saroma, Hokkaido, Japan |
title_sort |
sea ice colored by ice algae in a lagoon, lake saroma, hokkaido, japan |
publisher |
National Institute of Polar Research |
publishDate |
1981 |
url |
https://doi.org/10.15094/00008208 https://doaj.org/article/1817599d976342f9824722747e471097 |
long_lat |
ENVELOPE(-112.030,-112.030,55.899,55.899) |
geographic |
Lagoon Lake Okhotsk Syowa Station |
geographic_facet |
Lagoon Lake Okhotsk Syowa Station |
genre |
Antarc* Antarctica ice algae Sea ice |
genre_facet |
Antarc* Antarctica ice algae Sea ice |
op_source |
Antarctic Record, Iss 71, Pp 113-120 (1981) |
op_relation |
http://doi.org/10.15094/00008208 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008208 0085-7289 2432-079X https://doaj.org/article/1817599d976342f9824722747e471097 |
op_doi |
https://doi.org/10.15094/00008208 |
_version_ |
1766273023436914688 |