Bacteria-algae relationships in Antarctic sea ice
Energy transfer in microbial food webs is partly quantified by the relationship between bacterial and algal biomass. Tight spatial relationships suggest active bacterial assimilation of dissolved photosynthate in temperate marine and fresh waters. However, studies in the Antarctic suggest that bacte...
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Cambridge University Press (CUP)
2004
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Online Access: | http://dx.doi.org/10.1017/s0954102004001889 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102004001889 |
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crcambridgeupr:10.1017/s0954102004001889 2024-09-15T17:46:23+00:00 Bacteria-algae relationships in Antarctic sea ice STEWART, F.J. FRITSEN, C.H. 2004 http://dx.doi.org/10.1017/s0954102004001889 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102004001889 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 16, issue 2, page 143-156 ISSN 0954-1020 1365-2079 journal-article 2004 crcambridgeupr https://doi.org/10.1017/s0954102004001889 2024-09-04T04:03:15Z Energy transfer in microbial food webs is partly quantified by the relationship between bacterial and algal biomass. Tight spatial relationships suggest active bacterial assimilation of dissolved photosynthate in temperate marine and fresh waters. However, studies in the Antarctic suggest that bacterial biomass generation from algal-derived dissolved organic matter is highly variable across seasons and habitats. Regression analysis was used to measure how bacteria covaried with algae in sea ice and water column habitats at three sites around Antarctica. Bacteria and algae were positively related in sea ice of the Weddell Sea during early winter 1992 ( r 2 = 0.16, slope = 0.24) and across sea ice and upper water column habitats of the Ross Sea during summer 1999 ( r 2 = 0.52, slope = 0.50). Conversely, bacteria and algae exhibited no discernible relationship in the water column and first year ice habitats of the Western Antarctic Peninsula region in winter 2001 ( r 2 = 0.003, slope = −0.04). Low algal production and residual biomass probably limited bacterial production and facilitated bacteria-algae uncoupling in winter sea ice of the Western Antarctic Peninsula. Winter sea ice algal biomass was probably limited by a relatively late date of initial ice formation, reduced multi-year ice coverage, and a lack of radiant energy in the winter ice pack. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica ice pack Ross Sea Sea ice Weddell Sea Cambridge University Press Antarctic Science 16 2 143 156 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Energy transfer in microbial food webs is partly quantified by the relationship between bacterial and algal biomass. Tight spatial relationships suggest active bacterial assimilation of dissolved photosynthate in temperate marine and fresh waters. However, studies in the Antarctic suggest that bacterial biomass generation from algal-derived dissolved organic matter is highly variable across seasons and habitats. Regression analysis was used to measure how bacteria covaried with algae in sea ice and water column habitats at three sites around Antarctica. Bacteria and algae were positively related in sea ice of the Weddell Sea during early winter 1992 ( r 2 = 0.16, slope = 0.24) and across sea ice and upper water column habitats of the Ross Sea during summer 1999 ( r 2 = 0.52, slope = 0.50). Conversely, bacteria and algae exhibited no discernible relationship in the water column and first year ice habitats of the Western Antarctic Peninsula region in winter 2001 ( r 2 = 0.003, slope = −0.04). Low algal production and residual biomass probably limited bacterial production and facilitated bacteria-algae uncoupling in winter sea ice of the Western Antarctic Peninsula. Winter sea ice algal biomass was probably limited by a relatively late date of initial ice formation, reduced multi-year ice coverage, and a lack of radiant energy in the winter ice pack. |
format |
Article in Journal/Newspaper |
author |
STEWART, F.J. FRITSEN, C.H. |
spellingShingle |
STEWART, F.J. FRITSEN, C.H. Bacteria-algae relationships in Antarctic sea ice |
author_facet |
STEWART, F.J. FRITSEN, C.H. |
author_sort |
STEWART, F.J. |
title |
Bacteria-algae relationships in Antarctic sea ice |
title_short |
Bacteria-algae relationships in Antarctic sea ice |
title_full |
Bacteria-algae relationships in Antarctic sea ice |
title_fullStr |
Bacteria-algae relationships in Antarctic sea ice |
title_full_unstemmed |
Bacteria-algae relationships in Antarctic sea ice |
title_sort |
bacteria-algae relationships in antarctic sea ice |
publisher |
Cambridge University Press (CUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1017/s0954102004001889 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102004001889 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica ice pack Ross Sea Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica ice pack Ross Sea Sea ice Weddell Sea |
op_source |
Antarctic Science volume 16, issue 2, page 143-156 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102004001889 |
container_title |
Antarctic Science |
container_volume |
16 |
container_issue |
2 |
container_start_page |
143 |
op_container_end_page |
156 |
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1810494459567144960 |