Epilithic algae from a freshwater stream at Hope Bay, Antarctica
Temporal and spatial variations of the epilithic phycoflora were studied in one of the largest streams at Hope Bay (Antarctic Peninsula) during the summer of 1992/93. A complete floristic inventory was made, and the relative frequencies of each algal taxon were estimated. Periphytic cumulative chlor...
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Cambridge University Press (CUP)
1996
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Online Access: | http://dx.doi.org/10.1017/s0954102096000235 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000235 |
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crcambridgeupr:10.1017/s0954102096000235 2024-03-03T08:38:04+00:00 Epilithic algae from a freshwater stream at Hope Bay, Antarctica Pizarro, Haydée Izaguirre, Irina Tell, Guillermo 1996 http://dx.doi.org/10.1017/s0954102096000235 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000235 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 8, issue 2, page 161-167 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1996 crcambridgeupr https://doi.org/10.1017/s0954102096000235 2024-02-08T08:39:54Z Temporal and spatial variations of the epilithic phycoflora were studied in one of the largest streams at Hope Bay (Antarctic Peninsula) during the summer of 1992/93. A complete floristic inventory was made, and the relative frequencies of each algal taxon were estimated. Periphytic cumulative chlorophyll a was measured by means of artificial substrata. The stream was a typical maritime Antarctic lotic ecosystem, with evident signs of enrichment by sea-birds. Variability in discharge strongly affected the water chemistry, with the high water level periods characterized by the lowest conductivities and dissolved reactive phosphorus concentrations. Epilithic algal communities predominantly consisted of algal mats or filamentous and foliose forms of Prasiola crispa. Other dominant species were Leptolyngbya fragilis, Hydrurus foetidus, Chrysococcus cf. rufescens and Phaeogloea mucosa. Whereas P. crispa appeared more frequently near to the origin of the stream in Boeckella Lake, Chrysophyceae were better developed towards the mouth. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Cambridge University Press Antarctic Antarctic Peninsula Boeckella ENVELOPE(-56.999,-56.999,-63.404,-63.404) Hope Bay ENVELOPE(-57.038,-57.038,-63.403,-63.403) Boeckella Lake ENVELOPE(-56.999,-56.999,-63.404,-63.404) Antarctic Science 8 2 161 167 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Pizarro, Haydée Izaguirre, Irina Tell, Guillermo Epilithic algae from a freshwater stream at Hope Bay, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Temporal and spatial variations of the epilithic phycoflora were studied in one of the largest streams at Hope Bay (Antarctic Peninsula) during the summer of 1992/93. A complete floristic inventory was made, and the relative frequencies of each algal taxon were estimated. Periphytic cumulative chlorophyll a was measured by means of artificial substrata. The stream was a typical maritime Antarctic lotic ecosystem, with evident signs of enrichment by sea-birds. Variability in discharge strongly affected the water chemistry, with the high water level periods characterized by the lowest conductivities and dissolved reactive phosphorus concentrations. Epilithic algal communities predominantly consisted of algal mats or filamentous and foliose forms of Prasiola crispa. Other dominant species were Leptolyngbya fragilis, Hydrurus foetidus, Chrysococcus cf. rufescens and Phaeogloea mucosa. Whereas P. crispa appeared more frequently near to the origin of the stream in Boeckella Lake, Chrysophyceae were better developed towards the mouth. |
format |
Article in Journal/Newspaper |
author |
Pizarro, Haydée Izaguirre, Irina Tell, Guillermo |
author_facet |
Pizarro, Haydée Izaguirre, Irina Tell, Guillermo |
author_sort |
Pizarro, Haydée |
title |
Epilithic algae from a freshwater stream at Hope Bay, Antarctica |
title_short |
Epilithic algae from a freshwater stream at Hope Bay, Antarctica |
title_full |
Epilithic algae from a freshwater stream at Hope Bay, Antarctica |
title_fullStr |
Epilithic algae from a freshwater stream at Hope Bay, Antarctica |
title_full_unstemmed |
Epilithic algae from a freshwater stream at Hope Bay, Antarctica |
title_sort |
epilithic algae from a freshwater stream at hope bay, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1017/s0954102096000235 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000235 |
long_lat |
ENVELOPE(-56.999,-56.999,-63.404,-63.404) ENVELOPE(-57.038,-57.038,-63.403,-63.403) ENVELOPE(-56.999,-56.999,-63.404,-63.404) |
geographic |
Antarctic Antarctic Peninsula Boeckella Hope Bay Boeckella Lake |
geographic_facet |
Antarctic Antarctic Peninsula Boeckella Hope Bay Boeckella Lake |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica |
op_source |
Antarctic Science volume 8, issue 2, page 161-167 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102096000235 |
container_title |
Antarctic Science |
container_volume |
8 |
container_issue |
2 |
container_start_page |
161 |
op_container_end_page |
167 |
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1792504171170103296 |