Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica
Seasonal changes in nutrient concentrations, phytoplankton biomass and nutritional state were followed in two contrasting Antarctic lakes. Oligotrophic Sombre Lake receives little phosphate from its catchment and this limits the standing crop of phytoplankton which can develop in spring and summer....
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Online Access: | http://nora.nerc.ac.uk/id/eprint/524137/ https://doi.org/10.1007/BF00303177 |
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ftnerc:oai:nora.nerc.ac.uk:524137 2023-05-15T13:41:43+02:00 Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica Hawes, I. 1983 http://nora.nerc.ac.uk/id/eprint/524137/ https://doi.org/10.1007/BF00303177 unknown Springer Hawes, I. 1983 Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica. Polar Biology, 2 (2). 115-126. https://doi.org/10.1007/BF00303177 <https://doi.org/10.1007/BF00303177> Botany Publication - Article PeerReviewed 1983 ftnerc https://doi.org/10.1007/BF00303177 2023-02-04T19:48:43Z Seasonal changes in nutrient concentrations, phytoplankton biomass and nutritional state were followed in two contrasting Antarctic lakes. Oligotrophic Sombre Lake receives little phosphate from its catchment and this limits the standing crop of phytoplankton which can develop in spring and summer. This situation appears to be typical of unenriched Maritime Antarctic lakes. Large numbers of seals and seabirds in the catchment of nearby Heywood Lake increase its phosphate loading and allow a much denser growth of phytoplankton. The N:P ratio is low and nitrogen rather than phosphate is the most limiting nutrient. Despite limitation of standing crop, photosynthetic rates in both lakes are relatively high and recycling of nutrients within the lake may be rapid. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Biology Signy Island Natural Environment Research Council: NERC Open Research Archive Antarctic Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Heywood ENVELOPE(-59.683,-59.683,-62.317,-62.317) Lake May ENVELOPE(-119.991,-119.991,59.920,59.920) Sombre Lake ENVELOPE(-45.615,-45.615,-60.687,-60.687) Heywood Lake ENVELOPE(-45.609,-45.609,-60.691,-60.691) Polar Biology 2 2 115 126 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Botany |
spellingShingle |
Botany Hawes, I. Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica |
topic_facet |
Botany |
description |
Seasonal changes in nutrient concentrations, phytoplankton biomass and nutritional state were followed in two contrasting Antarctic lakes. Oligotrophic Sombre Lake receives little phosphate from its catchment and this limits the standing crop of phytoplankton which can develop in spring and summer. This situation appears to be typical of unenriched Maritime Antarctic lakes. Large numbers of seals and seabirds in the catchment of nearby Heywood Lake increase its phosphate loading and allow a much denser growth of phytoplankton. The N:P ratio is low and nitrogen rather than phosphate is the most limiting nutrient. Despite limitation of standing crop, photosynthetic rates in both lakes are relatively high and recycling of nutrients within the lake may be rapid. |
format |
Article in Journal/Newspaper |
author |
Hawes, I. |
author_facet |
Hawes, I. |
author_sort |
Hawes, I. |
title |
Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica |
title_short |
Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica |
title_full |
Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica |
title_fullStr |
Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica |
title_full_unstemmed |
Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica |
title_sort |
nutrients and their effects on phytoplankton populations in lakes on signy island, antarctica |
publisher |
Springer |
publishDate |
1983 |
url |
http://nora.nerc.ac.uk/id/eprint/524137/ https://doi.org/10.1007/BF00303177 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-59.683,-59.683,-62.317,-62.317) ENVELOPE(-119.991,-119.991,59.920,59.920) ENVELOPE(-45.615,-45.615,-60.687,-60.687) ENVELOPE(-45.609,-45.609,-60.691,-60.691) |
geographic |
Antarctic Signy Island Heywood Lake May Sombre Lake Heywood Lake |
geographic_facet |
Antarctic Signy Island Heywood Lake May Sombre Lake Heywood Lake |
genre |
Antarc* Antarctic Antarctica Polar Biology Signy Island |
genre_facet |
Antarc* Antarctic Antarctica Polar Biology Signy Island |
op_relation |
Hawes, I. 1983 Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica. Polar Biology, 2 (2). 115-126. https://doi.org/10.1007/BF00303177 <https://doi.org/10.1007/BF00303177> |
op_doi |
https://doi.org/10.1007/BF00303177 |
container_title |
Polar Biology |
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2 |
container_issue |
2 |
container_start_page |
115 |
op_container_end_page |
126 |
_version_ |
1766155322806763520 |