Nella Dan: AAMBER Cruise Chlorophyll a Data
These are old data, and have been archived almost 30 years after they were collected. Some information regarding their collection has undoubtedly been lost. The composition, size and abundance of phytoplankton and microzooplankton were measured across a transect from Prydz Bay to Australia during la...
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Australian Ocean Data Network
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Online Access: | https://researchdata.ands.org.au/nella-dan-aamber-cruise-chlorophyll/686864 https://data.aad.gov.au/metadata/records/AAMBER_phyto http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3963 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAMBER_phyto |
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ftands:oai:ands.org.au::686864 2023-05-15T13:46:56+02:00 Nella Dan: AAMBER Cruise Chlorophyll a Data AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) Spatial: northlimit=-61.0; southlimit=-70.0; westlimit=60.0; eastLimit=90.0 Temporal: From 1987-03-07 to 1987-03-23 https://researchdata.ands.org.au/nella-dan-aamber-cruise-chlorophyll/686864 https://data.aad.gov.au/metadata/records/AAMBER_phyto http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3963 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAMBER_phyto unknown Australian Ocean Data Network https://researchdata.ands.org.au/nella-dan-aamber-cruise-chlorophyll/686864 4577bfdf-ccca-4ee9-ab34-681f63b48e01 https://data.aad.gov.au/metadata/records/AAMBER_phyto http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3963 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAMBER_phyto https://data.aad.gov.au biota oceans PHYTOPLANKTON EARTH SCIENCE BIOSPHERE AQUATIC ECOSYSTEMS PLANKTON AAMBER Chlorophyll a SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:07:56Z These are old data, and have been archived almost 30 years after they were collected. Some information regarding their collection has undoubtedly been lost. The composition, size and abundance of phytoplankton and microzooplankton were measured across a transect from Prydz Bay to Australia during late March 1987. Phytoplankton populations were low, with concentrations of chlorophyll a ranging from 0.08 to 0.22 mg.m-3. Small cells predominated numerically; nanoplankton consistently represented 55 to 68% of the total cell number while picoplankton represented 27 to 44%. Microplankton never represented more than 3% of cells by number, but constituted 57 to 93% of the total cell volume, and accounted for most of the latitudinal variation in total volume. Small flagellates, not identifiable by light microscopy, were the most numerous cells encountered across the transect, with a five-fold increase in abundance at 47S. Numbers of diatoms (most less than 20 microns in size) increased markedly south of the Antarctic Convergence, with a strong correlation to the concentration of silica. Dinoflagellate numbers were relatively constant across the transect, although somewhat higher north of 50S. Those less than 20 microns in size were most numerous and accounted for most of the numerical variation. HPLC analysis of chlorophyll and carotenoid pigments showed a peak of peridinin which coincided with the flagellate peak at 47S, but not with observed dinoflagellates, suggesting that the flagellate peak included unrecognized dinoflagellates. Chlorophyll b and prasinoxanthin were also associated, suggesting a significant contribution by prasinophytes. Almost no cyanobacteria were observed south of the convergence, although very large numbers, which correlated with the abundance of zeaxanthin, were encountered to the north. Numbers of ciliates and tintinnids were quite variable although they followed each other closely. Numbers of both were low in the region of the Antarctic Convergence. Dataset Antarc* Antarctic Prydz Bay Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Prydz Bay Southern Ocean The Antarctic ENVELOPE(60.0,90.0,-61.0,-70.0) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans PHYTOPLANKTON EARTH SCIENCE BIOSPHERE AQUATIC ECOSYSTEMS PLANKTON AAMBER Chlorophyll a SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans PHYTOPLANKTON EARTH SCIENCE BIOSPHERE AQUATIC ECOSYSTEMS PLANKTON AAMBER Chlorophyll a SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR Nella Dan: AAMBER Cruise Chlorophyll a Data |
topic_facet |
biota oceans PHYTOPLANKTON EARTH SCIENCE BIOSPHERE AQUATIC ECOSYSTEMS PLANKTON AAMBER Chlorophyll a SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
description |
These are old data, and have been archived almost 30 years after they were collected. Some information regarding their collection has undoubtedly been lost. The composition, size and abundance of phytoplankton and microzooplankton were measured across a transect from Prydz Bay to Australia during late March 1987. Phytoplankton populations were low, with concentrations of chlorophyll a ranging from 0.08 to 0.22 mg.m-3. Small cells predominated numerically; nanoplankton consistently represented 55 to 68% of the total cell number while picoplankton represented 27 to 44%. Microplankton never represented more than 3% of cells by number, but constituted 57 to 93% of the total cell volume, and accounted for most of the latitudinal variation in total volume. Small flagellates, not identifiable by light microscopy, were the most numerous cells encountered across the transect, with a five-fold increase in abundance at 47S. Numbers of diatoms (most less than 20 microns in size) increased markedly south of the Antarctic Convergence, with a strong correlation to the concentration of silica. Dinoflagellate numbers were relatively constant across the transect, although somewhat higher north of 50S. Those less than 20 microns in size were most numerous and accounted for most of the numerical variation. HPLC analysis of chlorophyll and carotenoid pigments showed a peak of peridinin which coincided with the flagellate peak at 47S, but not with observed dinoflagellates, suggesting that the flagellate peak included unrecognized dinoflagellates. Chlorophyll b and prasinoxanthin were also associated, suggesting a significant contribution by prasinophytes. Almost no cyanobacteria were observed south of the convergence, although very large numbers, which correlated with the abundance of zeaxanthin, were encountered to the north. Numbers of ciliates and tintinnids were quite variable although they followed each other closely. Numbers of both were low in the region of the Antarctic Convergence. |
author2 |
AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) |
format |
Dataset |
title |
Nella Dan: AAMBER Cruise Chlorophyll a Data |
title_short |
Nella Dan: AAMBER Cruise Chlorophyll a Data |
title_full |
Nella Dan: AAMBER Cruise Chlorophyll a Data |
title_fullStr |
Nella Dan: AAMBER Cruise Chlorophyll a Data |
title_full_unstemmed |
Nella Dan: AAMBER Cruise Chlorophyll a Data |
title_sort |
nella dan: aamber cruise chlorophyll a data |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.ands.org.au/nella-dan-aamber-cruise-chlorophyll/686864 https://data.aad.gov.au/metadata/records/AAMBER_phyto http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3963 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAMBER_phyto |
op_coverage |
Spatial: northlimit=-61.0; southlimit=-70.0; westlimit=60.0; eastLimit=90.0 Temporal: From 1987-03-07 to 1987-03-23 |
long_lat |
ENVELOPE(60.0,90.0,-61.0,-70.0) |
geographic |
Antarctic Prydz Bay Southern Ocean The Antarctic |
geographic_facet |
Antarctic Prydz Bay Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Prydz Bay Southern Ocean |
genre_facet |
Antarc* Antarctic Prydz Bay Southern Ocean |
op_source |
https://data.aad.gov.au |
op_relation |
https://researchdata.ands.org.au/nella-dan-aamber-cruise-chlorophyll/686864 4577bfdf-ccca-4ee9-ab34-681f63b48e01 https://data.aad.gov.au/metadata/records/AAMBER_phyto http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3963 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAMBER_phyto |
_version_ |
1766245713982783488 |