Diatom flora and environmental factors in some fresh water ponds of East Ongul Island
Diatom flora and chemical factors of water in sixteen ponds of East Ongul Island, which are 10-100 meters in diameter and less than 2 meters in depth, were investigated from January 7 to 21, 1974. The obtained results are as follows; pH value - 6.7-7.2, chlor ion concentration - 49.0-860 ppm, chemic...
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National Institute of Polar Research
1977
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ftdoajarticles:oai:doaj.org/article:20cb24a4629044cfae2c01008312b178 2023-05-15T16:03:59+02:00 Diatom flora and environmental factors in some fresh water ponds of East Ongul Island Sakae Karasawa Hiroshi Fukushima 1977-08-01T00:00:00Z https://doi.org/10.15094/00007943 https://doaj.org/article/20cb24a4629044cfae2c01008312b178 EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00007943 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007943 0085-7289 2432-079X https://doaj.org/article/20cb24a4629044cfae2c01008312b178 Antarctic Record, Iss 59, Pp 46-53 (1977) Geography (General) G1-922 article 1977 ftdoajarticles https://doi.org/10.15094/00007943 2023-01-08T01:36:10Z Diatom flora and chemical factors of water in sixteen ponds of East Ongul Island, which are 10-100 meters in diameter and less than 2 meters in depth, were investigated from January 7 to 21, 1974. The obtained results are as follows; pH value - 6.7-7.2, chlor ion concentration - 49.0-860 ppm, chemical oxygen demand - 2.34-8.71 ppm and biological oxygen demand - 0.4-4.2 ppm. Twenty-three taxa of diatoms were identified including newly found three taxa, Navicula abiculata, Navicula seminulum v. hustedtii and Gomphonema olivaceum v. tenellum. The Navicula muticopsis, the Stauroneis anceps and the Pinnularia braunii association were distinguished. It was of interest to note that the Nav. muticopsis association was distributed in the eastern and the southern coastal area of the Island, which seemed to be influenced by seaborn salts. Article in Journal/Newspaper East Ongul Island Ongul Island Directory of Open Access Journals: DOAJ Articles Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Ongul Island ENVELOPE(39.533,39.533,-69.017,-69.017) East Ongul Island ENVELOPE(39.583,39.583,-69.017,-69.017) |
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 Sakae Karasawa Hiroshi Fukushima Diatom flora and environmental factors in some fresh water ponds of East Ongul Island |
topic_facet |
Geography (General) G1-922 |
description |
Diatom flora and chemical factors of water in sixteen ponds of East Ongul Island, which are 10-100 meters in diameter and less than 2 meters in depth, were investigated from January 7 to 21, 1974. The obtained results are as follows; pH value - 6.7-7.2, chlor ion concentration - 49.0-860 ppm, chemical oxygen demand - 2.34-8.71 ppm and biological oxygen demand - 0.4-4.2 ppm. Twenty-three taxa of diatoms were identified including newly found three taxa, Navicula abiculata, Navicula seminulum v. hustedtii and Gomphonema olivaceum v. tenellum. The Navicula muticopsis, the Stauroneis anceps and the Pinnularia braunii association were distinguished. It was of interest to note that the Nav. muticopsis association was distributed in the eastern and the southern coastal area of the Island, which seemed to be influenced by seaborn salts. |
format |
Article in Journal/Newspaper |
author |
Sakae Karasawa Hiroshi Fukushima |
author_facet |
Sakae Karasawa Hiroshi Fukushima |
author_sort |
Sakae Karasawa |
title |
Diatom flora and environmental factors in some fresh water ponds of East Ongul Island |
title_short |
Diatom flora and environmental factors in some fresh water ponds of East Ongul Island |
title_full |
Diatom flora and environmental factors in some fresh water ponds of East Ongul Island |
title_fullStr |
Diatom flora and environmental factors in some fresh water ponds of East Ongul Island |
title_full_unstemmed |
Diatom flora and environmental factors in some fresh water ponds of East Ongul Island |
title_sort |
diatom flora and environmental factors in some fresh water ponds of east ongul island |
publisher |
National Institute of Polar Research |
publishDate |
1977 |
url |
https://doi.org/10.15094/00007943 https://doaj.org/article/20cb24a4629044cfae2c01008312b178 |
long_lat |
ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.583,39.583,-69.017,-69.017) |
geographic |
Ongul Ongul Island East Ongul Island |
geographic_facet |
Ongul Ongul Island East Ongul Island |
genre |
East Ongul Island Ongul Island |
genre_facet |
East Ongul Island Ongul Island |
op_source |
Antarctic Record, Iss 59, Pp 46-53 (1977) |
op_relation |
http://doi.org/10.15094/00007943 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007943 0085-7289 2432-079X https://doaj.org/article/20cb24a4629044cfae2c01008312b178 |
op_doi |
https://doi.org/10.15094/00007943 |
_version_ |
1766399674352140288 |