Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96
Two cruises were carried out during the Austral spring-summer (November 1995 - January 1996: FRUELA 95, and January - February 1996: FRUELA 96), sampling in Bellingshausen Sea, western Bransfield Strait and Gerlache Strait. We investigated whether there were any spatial (among locations) or temporal...
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Format: | Dataset |
Language: | English |
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PANGAEA
2008
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.696287 https://doi.org/10.1594/PANGAEA.696287 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.696287 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Bransfield Strait CTD/Rosette CTD-RO Fruela95 Fruela95_142 Fruela95_15 Fruela95_169.3 Fruela95_39 Fruela95_79 Fruela96 Fruela96_193 Fruela96_210 he31_015 he31_040 he31_083 he31_150 he31_200 he31_243 he31_262 Hespérides |
spellingShingle |
Bransfield Strait CTD/Rosette CTD-RO Fruela95 Fruela95_142 Fruela95_15 Fruela95_169.3 Fruela95_39 Fruela95_79 Fruela96 Fruela96_193 Fruela96_210 he31_015 he31_040 he31_083 he31_150 he31_200 he31_243 he31_262 Hespérides Vaqué, Dolors Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 |
topic_facet |
Bransfield Strait CTD/Rosette CTD-RO Fruela95 Fruela95_142 Fruela95_15 Fruela95_169.3 Fruela95_39 Fruela95_79 Fruela96 Fruela96_193 Fruela96_210 he31_015 he31_040 he31_083 he31_150 he31_200 he31_243 he31_262 Hespérides |
description |
Two cruises were carried out during the Austral spring-summer (November 1995 - January 1996: FRUELA 95, and January - February 1996: FRUELA 96), sampling in Bellingshausen Sea, western Bransfield Strait and Gerlache Strait. We investigated whether there were any spatial (among locations) or temporal (between cruises) differences in abundance and biomass of microbial heterotrophic and autotrophic assemblages. Changes in the concentration of chlorophyll a, prokaryotes, heterotrophic and phototrophic nanoflagellates abundance and biomass were followed in the above mentioned locations close to the Antarctic Peninsula. Parallel to these measurements we selected seven stations to determine grazing rates on prokaryotes by protists at a depth coincident with the depth of maximum chlorophyll a concentration. Measuring the disappearance of fluorescent minicells over 48 h assessed grazing by the protist community. From prokaryotes grazing rates, we estimated how much prokaryotic carbon was channeled to higher trophic levels (protists), and whether this prokaryotic carbon could maintain protists biomass and growth rates. In general higher values were reported for Gerlache Strait than for the other two areas. Differences between cruises were more evident for the oligotrophic areas in Bellingshausen Sea and Bransfield Strait than in Gerlache Strait (eutrophic area). Higher values for phototrophic (at least for chlorophyll a concentration) and abundance of all heterotrophic microbial populations were recorded in Bellingshausen Sea and Bransfield Strait during late spring - early summer (FRUELA 95) than in mid-summer (FRUELA 96). However, similar results for these variables were observed in Gerlache Strait as in spring-early summer as well as in mid-summer. Also, we found differences in grazing rates on prokaryotes among stations located in the three areas and between cruises. Thus, during late spring-early summer (FRUELA 95), the prokaryotic biomass consumed from the standing stock was higher in Bellingshausen Sea (26%/day) ... |
format |
Dataset |
author |
Vaqué, Dolors |
author_facet |
Vaqué, Dolors |
author_sort |
Vaqué, Dolors |
title |
Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 |
title_short |
Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 |
title_full |
Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 |
title_fullStr |
Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 |
title_full_unstemmed |
Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 |
title_sort |
abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the antarctic peninsula in spring and summer 1995/96 |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.696287 https://doi.org/10.1594/PANGAEA.696287 |
op_coverage |
MEDIAN LATITUDE: -63.231411 * MEDIAN LONGITUDE: -62.827354 * SOUTH-BOUND LATITUDE: -64.867000 * WEST-BOUND LONGITUDE: -64.337500 * NORTH-BOUND LATITUDE: -62.352500 * EAST-BOUND LONGITUDE: -59.620600 * DATE/TIME START: 1995-12-06T10:36:00 * DATE/TIME END: 1996-01-24T19:54:00 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) ENVELOPE(-64.337500,-59.620600,-62.352500,-64.867000) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral Bellingshausen Sea Bransfield Strait Gerlache Gerlache Strait |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral Bellingshausen Sea Bransfield Strait Gerlache Gerlache Strait |
genre |
Antarc* Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait |
op_source |
Supplement to: Vaqué, Dolors; Guixa-Boixereu, Nuria; Gasol, Josep M; Pedrós-Alió, Carlos (2002): Distribution of microbial biomass and importance of protists in regulating prokaryotic assemblages in three areas close to the Antarctic Peninsula in spring and summer 1995/96. Deep Sea Research Part II: Topical Studies in Oceanography, 49(4-5), 847-867, https://doi.org/10.1016/S0967-0645(01)00127-8 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.696287 https://doi.org/10.1594/PANGAEA.696287 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.696287 https://doi.org/10.1016/S0967-0645(01)00127-8 |
_version_ |
1766163354216300544 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.696287 2023-05-15T13:42:09+02:00 Abundance, biomass, production, grazing, and biometric measurements of prokaryotes, nanoflagellates, ciliates, and dinoflagellates in three areas close to the Antarctic Peninsula in spring and summer 1995/96 Vaqué, Dolors MEDIAN LATITUDE: -63.231411 * MEDIAN LONGITUDE: -62.827354 * SOUTH-BOUND LATITUDE: -64.867000 * WEST-BOUND LONGITUDE: -64.337500 * NORTH-BOUND LATITUDE: -62.352500 * EAST-BOUND LONGITUDE: -59.620600 * DATE/TIME START: 1995-12-06T10:36:00 * DATE/TIME END: 1996-01-24T19:54:00 2008-06-27 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.696287 https://doi.org/10.1594/PANGAEA.696287 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.696287 https://doi.org/10.1594/PANGAEA.696287 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Vaqué, Dolors; Guixa-Boixereu, Nuria; Gasol, Josep M; Pedrós-Alió, Carlos (2002): Distribution of microbial biomass and importance of protists in regulating prokaryotic assemblages in three areas close to the Antarctic Peninsula in spring and summer 1995/96. Deep Sea Research Part II: Topical Studies in Oceanography, 49(4-5), 847-867, https://doi.org/10.1016/S0967-0645(01)00127-8 Bransfield Strait CTD/Rosette CTD-RO Fruela95 Fruela95_142 Fruela95_15 Fruela95_169.3 Fruela95_39 Fruela95_79 Fruela96 Fruela96_193 Fruela96_210 he31_015 he31_040 he31_083 he31_150 he31_200 he31_243 he31_262 Hespérides Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.696287 https://doi.org/10.1016/S0967-0645(01)00127-8 2023-01-20T07:31:12Z Two cruises were carried out during the Austral spring-summer (November 1995 - January 1996: FRUELA 95, and January - February 1996: FRUELA 96), sampling in Bellingshausen Sea, western Bransfield Strait and Gerlache Strait. We investigated whether there were any spatial (among locations) or temporal (between cruises) differences in abundance and biomass of microbial heterotrophic and autotrophic assemblages. Changes in the concentration of chlorophyll a, prokaryotes, heterotrophic and phototrophic nanoflagellates abundance and biomass were followed in the above mentioned locations close to the Antarctic Peninsula. Parallel to these measurements we selected seven stations to determine grazing rates on prokaryotes by protists at a depth coincident with the depth of maximum chlorophyll a concentration. Measuring the disappearance of fluorescent minicells over 48 h assessed grazing by the protist community. From prokaryotes grazing rates, we estimated how much prokaryotic carbon was channeled to higher trophic levels (protists), and whether this prokaryotic carbon could maintain protists biomass and growth rates. In general higher values were reported for Gerlache Strait than for the other two areas. Differences between cruises were more evident for the oligotrophic areas in Bellingshausen Sea and Bransfield Strait than in Gerlache Strait (eutrophic area). Higher values for phototrophic (at least for chlorophyll a concentration) and abundance of all heterotrophic microbial populations were recorded in Bellingshausen Sea and Bransfield Strait during late spring - early summer (FRUELA 95) than in mid-summer (FRUELA 96). However, similar results for these variables were observed in Gerlache Strait as in spring-early summer as well as in mid-summer. Also, we found differences in grazing rates on prokaryotes among stations located in the three areas and between cruises. Thus, during late spring-early summer (FRUELA 95), the prokaryotic biomass consumed from the standing stock was higher in Bellingshausen Sea (26%/day) ... Dataset Antarc* Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait PANGAEA - Data Publisher for Earth & Environmental Science Antarctic The Antarctic Antarctic Peninsula Austral Bellingshausen Sea Bransfield Strait Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) ENVELOPE(-64.337500,-59.620600,-62.352500,-64.867000) |