Phytoplankton in Antarctic lakes: biodiversity and main ecological features
Antarctica holds a great number of inland lakes whose characteristics vary from ultra-oligotrophic to hypereutrophic, and from freshwater to hypersaline. The harsh conditions in these ecosystems (extremely low temperatures, large annual variation in solar radiation, light limitation below the ice) a...
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ftconicet:oai:ri.conicet.gov.ar:11336/170142 2023-10-09T21:47:14+02:00 Phytoplankton in Antarctic lakes: biodiversity and main ecological features Izaguirre, Irina Allende, Luz Schiaffino, María Romina application/pdf http://hdl.handle.net/11336/170142 eng eng Springer info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s10750-020-04306-x info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-020-04306-x http://hdl.handle.net/11336/170142 Izaguirre, Irina; Allende, Luz; Schiaffino, María Romina; Phytoplankton in Antarctic lakes: biodiversity and main ecological features; Springer; Hydrobiologia; 848; 1; 5-2020; 177-207 0018-8158 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTIC LAKES DIVERSITY AND ECOLOGY EXTREME ENVIRONMENTS PHYTOPLANKTON REVIEW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s10750-020-04306-x 2023-09-24T20:26:54Z Antarctica holds a great number of inland lakes whose characteristics vary from ultra-oligotrophic to hypereutrophic, and from freshwater to hypersaline. The harsh conditions in these ecosystems (extremely low temperatures, large annual variation in solar radiation, light limitation below the ice) account for adaptive strategies of the selected phytoplankton species; some of them are mixotrophy, formation of resistant cysts, starch accumulation, pigment adaptation and motility. Algal richness is comparatively lower than in other parts of the world, although molecular studies are now revealing a biodiversity much higher than that previously based on morphological identifications. Many lakes are permanently stratified, such as perennially ice-covered or saline meromictic, whereas shallow lakes in coastal regions are usually ice-free in summer, accounting for contrasting patterns in their phytoplankton temporal dynamics. Simple and short food webs are characteristic of Antarctic lakes, where phytoplankton fraction > 2 μm is usually dominated by nanoflagellates. In this review, we provide an overview of the current knowledge about phytoplankton of Antarctic lakes, including information on biodiversity (morphological-based, functional and molecular), and the main ecological aspects (colonization, endemism, ecological strategies, temporal dynamics, biotic interactions). We compared ecosystems of different trophic status and from Continental and Maritime Antarctica, including own data from manipulative experiments. Fil: Izaguirre, Irina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Allende, Luz. Universidad Nacional de General Sarmiento. Instituto del Conurbano. Area de Ecología; Argentina. Consejo Nacional de Investigaciones ... Article in Journal/Newspaper Antarc* Antarctic Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Argentina Sarmiento ENVELOPE(-68.000,-68.000,-72.000,-72.000) Hydrobiologia 848 1 177 207 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTIC LAKES DIVERSITY AND ECOLOGY EXTREME ENVIRONMENTS PHYTOPLANKTON REVIEW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTIC LAKES DIVERSITY AND ECOLOGY EXTREME ENVIRONMENTS PHYTOPLANKTON REVIEW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Izaguirre, Irina Allende, Luz Schiaffino, María Romina Phytoplankton in Antarctic lakes: biodiversity and main ecological features |
topic_facet |
ANTARCTIC LAKES DIVERSITY AND ECOLOGY EXTREME ENVIRONMENTS PHYTOPLANKTON REVIEW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Antarctica holds a great number of inland lakes whose characteristics vary from ultra-oligotrophic to hypereutrophic, and from freshwater to hypersaline. The harsh conditions in these ecosystems (extremely low temperatures, large annual variation in solar radiation, light limitation below the ice) account for adaptive strategies of the selected phytoplankton species; some of them are mixotrophy, formation of resistant cysts, starch accumulation, pigment adaptation and motility. Algal richness is comparatively lower than in other parts of the world, although molecular studies are now revealing a biodiversity much higher than that previously based on morphological identifications. Many lakes are permanently stratified, such as perennially ice-covered or saline meromictic, whereas shallow lakes in coastal regions are usually ice-free in summer, accounting for contrasting patterns in their phytoplankton temporal dynamics. Simple and short food webs are characteristic of Antarctic lakes, where phytoplankton fraction > 2 μm is usually dominated by nanoflagellates. In this review, we provide an overview of the current knowledge about phytoplankton of Antarctic lakes, including information on biodiversity (morphological-based, functional and molecular), and the main ecological aspects (colonization, endemism, ecological strategies, temporal dynamics, biotic interactions). We compared ecosystems of different trophic status and from Continental and Maritime Antarctica, including own data from manipulative experiments. Fil: Izaguirre, Irina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Allende, Luz. Universidad Nacional de General Sarmiento. Instituto del Conurbano. Area de Ecología; Argentina. Consejo Nacional de Investigaciones ... |
format |
Article in Journal/Newspaper |
author |
Izaguirre, Irina Allende, Luz Schiaffino, María Romina |
author_facet |
Izaguirre, Irina Allende, Luz Schiaffino, María Romina |
author_sort |
Izaguirre, Irina |
title |
Phytoplankton in Antarctic lakes: biodiversity and main ecological features |
title_short |
Phytoplankton in Antarctic lakes: biodiversity and main ecological features |
title_full |
Phytoplankton in Antarctic lakes: biodiversity and main ecological features |
title_fullStr |
Phytoplankton in Antarctic lakes: biodiversity and main ecological features |
title_full_unstemmed |
Phytoplankton in Antarctic lakes: biodiversity and main ecological features |
title_sort |
phytoplankton in antarctic lakes: biodiversity and main ecological features |
publisher |
Springer |
url |
http://hdl.handle.net/11336/170142 |
long_lat |
ENVELOPE(-68.000,-68.000,-72.000,-72.000) |
geographic |
Antarctic Argentina Sarmiento |
geographic_facet |
Antarctic Argentina Sarmiento |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s10750-020-04306-x info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-020-04306-x http://hdl.handle.net/11336/170142 Izaguirre, Irina; Allende, Luz; Schiaffino, María Romina; Phytoplankton in Antarctic lakes: biodiversity and main ecological features; Springer; Hydrobiologia; 848; 1; 5-2020; 177-207 0018-8158 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s10750-020-04306-x |
container_title |
Hydrobiologia |
container_volume |
848 |
container_issue |
1 |
container_start_page |
177 |
op_container_end_page |
207 |
_version_ |
1779310201419071488 |