Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)

Nine lakes and ponds of Hope Bay (Antarctic Peninsula), with different trophic status were surveyed during four summer periods between 1991 and 1996. Some limnological features and the structure of their algal assemblages were strongly influenced by the eutrophication caused by sea-birds activity in...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Izaguirre, I., Vinocur, A., Mataloni, G., Pose, M.
Formato: JOUR
Materias:
Antarctica
Lakes
Phytoplankton
Trophic status
Typology
community structure
lake ecosystem
phytoplankton
trophic status
Chrysophyceae
Cyanophyceae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00188158_v369-370_n_p73_Izaguirre
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00188158_v369-370_n_p73_Izaguirre
record_format dspace
spelling todo:paper_00188158_v369-370_n_p73_Izaguirre2023-10-03T14:15:50Z Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula) Izaguirre, I. Vinocur, A. Mataloni, G. Pose, M. Antarctica Lakes Phytoplankton Trophic status Typology community structure lake ecosystem phytoplankton trophic status Antarctica Chrysophyceae Cyanophyceae Nine lakes and ponds of Hope Bay (Antarctic Peninsula), with different trophic status were surveyed during four summer periods between 1991 and 1996. Some limnological features and the structure of their algal assemblages were strongly influenced by the eutrophication caused by sea-birds activity in their areas. Such differences among lakes were evidenced by the results of Principal Component Analyses, based on both physico-chemical and phytoplankton data. Oligotrophic lakes showed a scarce phytoplankton, commonly dominated by small flagellated Chrysophyceae, and a well developed phytobenthos. Water bodies enriched by ornithogenic nutrients revealed an abundant phytoplankton usually dominated by Chlorophyceae (Volvocales) and planktonic Cyanobacteria. A study on one particular lake showed that summer changes in the phytoplankton community were mainly affected by physical phenomena such as variation in light intensity, and thawing, mixing and freezing processes. Fil:Izaguirre, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vinocur, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mataloni, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00188158_v369-370_n_p73_Izaguirre
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Antarctica
Lakes
Phytoplankton
Trophic status
Typology
community structure
lake ecosystem
phytoplankton
trophic status
Antarctica
Chrysophyceae
Cyanophyceae
spellingShingle Antarctica
Lakes
Phytoplankton
Trophic status
Typology
community structure
lake ecosystem
phytoplankton
trophic status
Antarctica
Chrysophyceae
Cyanophyceae
Izaguirre, I.
Vinocur, A.
Mataloni, G.
Pose, M.
Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)
topic_facet Antarctica
Lakes
Phytoplankton
Trophic status
Typology
community structure
lake ecosystem
phytoplankton
trophic status
Antarctica
Chrysophyceae
Cyanophyceae
description Nine lakes and ponds of Hope Bay (Antarctic Peninsula), with different trophic status were surveyed during four summer periods between 1991 and 1996. Some limnological features and the structure of their algal assemblages were strongly influenced by the eutrophication caused by sea-birds activity in their areas. Such differences among lakes were evidenced by the results of Principal Component Analyses, based on both physico-chemical and phytoplankton data. Oligotrophic lakes showed a scarce phytoplankton, commonly dominated by small flagellated Chrysophyceae, and a well developed phytobenthos. Water bodies enriched by ornithogenic nutrients revealed an abundant phytoplankton usually dominated by Chlorophyceae (Volvocales) and planktonic Cyanobacteria. A study on one particular lake showed that summer changes in the phytoplankton community were mainly affected by physical phenomena such as variation in light intensity, and thawing, mixing and freezing processes.
format JOUR
author Izaguirre, I.
Vinocur, A.
Mataloni, G.
Pose, M.
author_facet Izaguirre, I.
Vinocur, A.
Mataloni, G.
Pose, M.
author_sort Izaguirre, I.
title Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)
title_short Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)
title_full Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)
title_fullStr Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)
title_full_unstemmed Phytoplankton communities in relation to trophic status in lakes from Hope Bay (Antarctic Peninsula)
title_sort phytoplankton communities in relation to trophic status in lakes from hope bay (antarctic peninsula)
url http://hdl.handle.net/20.500.12110/paper_00188158_v369-370_n_p73_Izaguirre
work_keys_str_mv AT izaguirrei phytoplanktoncommunitiesinrelationtotrophicstatusinlakesfromhopebayantarcticpeninsula
AT vinocura phytoplanktoncommunitiesinrelationtotrophicstatusinlakesfromhopebayantarcticpeninsula
AT matalonig phytoplanktoncommunitiesinrelationtotrophicstatusinlakesfromhopebayantarcticpeninsula
AT posem phytoplanktoncommunitiesinrelationtotrophicstatusinlakesfromhopebayantarcticpeninsula
_version_ 1807322330407370752

Ejemplares similares