GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2
SUMMARY During spring, extensive blooms of microalgae grow on the underside of arctic sea ice. The brownish, algal layer penetrates ca. 2 cm into the bottom surface of the ice and the algae are potentially exposed to very high salinities. Four diatom species, Melosira juergensii Ag., Porosira glacia...
Published in: | Journal of Phycology |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1111/j.1529-8817.1976.tb00498.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1976.tb00498.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1976.tb00498.x |
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crwiley:10.1111/j.1529-8817.1976.tb00498.x 2024-09-09T19:21:05+00:00 GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 Grant, W. S. Horner, Rita A. 1976 http://dx.doi.org/10.1111/j.1529-8817.1976.tb00498.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1976.tb00498.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1976.tb00498.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 12, issue 2, page 180-185 ISSN 0022-3646 1529-8817 journal-article 1976 crwiley https://doi.org/10.1111/j.1529-8817.1976.tb00498.x 2024-06-18T04:15:42Z SUMMARY During spring, extensive blooms of microalgae grow on the underside of arctic sea ice. The brownish, algal layer penetrates ca. 2 cm into the bottom surface of the ice and the algae are potentially exposed to very high salinities. Four diatom species, Melosira juergensii Ag., Porosira glacialis (Grun.) Jørg., Navicula transitans var. derasa (Grun.) Cleve, and Coscinodiscus lacustris Grun., isolated from, sea ice samples taken from the Beaufort and Chukchi seas near Barrow, Alaska, were grown at 11 salinities ranging from 5 to 70‰ at 5 C under constant illumination. All of the species grew at 5‰ except N. transitans whose lower growth limit was 15‰. Growth was high over a broad range of salinities, but none of the species grew at salinities above 60‰. These diatom species appear to be well suited to tolerate the salinities in the brine pockets near the bottom of annual arctic sea ice where they are found. High brine‐cell salinity, however, may limit the upward, penetration of ice algae into the bottom of sea ice. Article in Journal/Newspaper Arctic Barrow Chukchi ice algae Sea ice Alaska Wiley Online Library Arctic Journal of Phycology 12 2 180 185 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
SUMMARY During spring, extensive blooms of microalgae grow on the underside of arctic sea ice. The brownish, algal layer penetrates ca. 2 cm into the bottom surface of the ice and the algae are potentially exposed to very high salinities. Four diatom species, Melosira juergensii Ag., Porosira glacialis (Grun.) Jørg., Navicula transitans var. derasa (Grun.) Cleve, and Coscinodiscus lacustris Grun., isolated from, sea ice samples taken from the Beaufort and Chukchi seas near Barrow, Alaska, were grown at 11 salinities ranging from 5 to 70‰ at 5 C under constant illumination. All of the species grew at 5‰ except N. transitans whose lower growth limit was 15‰. Growth was high over a broad range of salinities, but none of the species grew at salinities above 60‰. These diatom species appear to be well suited to tolerate the salinities in the brine pockets near the bottom of annual arctic sea ice where they are found. High brine‐cell salinity, however, may limit the upward, penetration of ice algae into the bottom of sea ice. |
format |
Article in Journal/Newspaper |
author |
Grant, W. S. Horner, Rita A. |
spellingShingle |
Grant, W. S. Horner, Rita A. GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 |
author_facet |
Grant, W. S. Horner, Rita A. |
author_sort |
Grant, W. S. |
title |
GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 |
title_short |
GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 |
title_full |
GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 |
title_fullStr |
GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 |
title_full_unstemmed |
GROWTH RESPONSES TO SALINITY VARIATION IN FOUR ARCTIC ICE DIATOMS 1, 2 |
title_sort |
growth responses to salinity variation in four arctic ice diatoms 1, 2 |
publisher |
Wiley |
publishDate |
1976 |
url |
http://dx.doi.org/10.1111/j.1529-8817.1976.tb00498.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1976.tb00498.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1976.tb00498.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Chukchi ice algae Sea ice Alaska |
genre_facet |
Arctic Barrow Chukchi ice algae Sea ice Alaska |
op_source |
Journal of Phycology volume 12, issue 2, page 180-185 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1529-8817.1976.tb00498.x |
container_title |
Journal of Phycology |
container_volume |
12 |
container_issue |
2 |
container_start_page |
180 |
op_container_end_page |
185 |
_version_ |
1809761265964285952 |