Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects
Progress Code: completed See the referenced paper for additional details. Sampling. Sampling was conducted on board the RSV Aurora Australis during cruise V3 from 20 January to 7 February 2012. This cruise occupied a latitudinal transect from waters north of Cape Poinsett, Antarctica (65_ S) to sout...
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Australian Ocean Data Network
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Online Access: | https://researchdata.edu.au/advection-shapes-southern-environment-effects/2819436 |
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ftands:oai:ands.org.au::2819436 2023-12-03T10:13:40+01:00 Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects Spatial: westlimit=113; southlimit=-65.0; eastlimit=115; northlimit=-37.0 Temporal: From 2012-01-20 to 2012-02-07 https://researchdata.edu.au/advection-shapes-southern-environment-effects/2819436 unknown Australian Ocean Data Network https://researchdata.edu.au/advection-shapes-southern-environment-effects/2819436 AAS_3145_Advection AU/AADC > Australian Antarctic Data Centre, Australia biota oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL PIGMENTS > Microbes Microbial assemblages Advection DNA NISKIN BOTTLES CTD > Conductivity Temperature Depth R/V AA > R/V Aurora Australis AMD AMD/AU CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR dataset ftands 2023-11-06T23:50:52Z Progress Code: completed See the referenced paper for additional details. Sampling. Sampling was conducted on board the RSV Aurora Australis during cruise V3 from 20 January to 7 February 2012. This cruise occupied a latitudinal transect from waters north of Cape Poinsett, Antarctica (65_ S) to south of Cape Leeuwin, Australia (37_ S) within a longitudinal range of 113-115_ E. Sampling was performed as described in ref. 29, with sites and depths selected to provide coverage of all major SO water masses. At each surface station, E250-560 l of seawater was pumped from E1.5 to 2.5m depth. At some surface stations, an additional sample was taken from the Deep Chlorophyll Maximum (DCM), as determined by chlorophyll fluorescence measurements taken from a conductivity, temperature and depth probe (CTD) cast at each sampling station. Samples of mesopelagic and deeper waters (E120-240 l) were also collected at some stations using Niskin bottles attached to the CTD. Sampling depths were selected based on temperature, salinity and dissolved oxygen profiles to capture water from the targeted water masses. Profiles were generated on the CTD descent, and samples were collected on the ascent at the selected depths. Deep water masses were identified by the following criteria: CDW 1/4 oxygen minimum (Upper Circumpolar Deep) or salinity maximum (Lower Circumpolar Deep); AABW 1/4 deep potential temperature minimum; AAIW 1/4 salinity minimum 18. The major fronts of the SO, which coincide with strong horizontal gradients in temperature and salinity 19,30, separate regions with similar surface water properties. The AZ lies south of the Polar Front (which was at 51_ S during sampling), whereas the PFZ lies between the Polar Front and the Subantarctic Front. In total, 25 samples from the AZ, PFZ, SAMW, AAIW, CDW and AABW were collected for this study (Fig. 1, Supplementary Data 1). Seawater samples were prefiltered through a 20-mm plankton net, biomass captured on sequential 3.0-, 0.8- and 0.1-mm 293-mm polyethersulphone membrane ... Dataset Antarc* Antarctica aurora australis Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean Poinsett ENVELOPE(113.217,113.217,-65.767,-65.767) Cape Poinsett ENVELOPE(113.217,113.217,-65.767,-65.767) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL PIGMENTS > Microbes Microbial assemblages Advection DNA NISKIN BOTTLES CTD > Conductivity Temperature Depth R/V AA > R/V Aurora Australis AMD AMD/AU CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL PIGMENTS > Microbes Microbial assemblages Advection DNA NISKIN BOTTLES CTD > Conductivity Temperature Depth R/V AA > R/V Aurora Australis AMD AMD/AU CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects |
topic_facet |
biota oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL PIGMENTS > Microbes Microbial assemblages Advection DNA NISKIN BOTTLES CTD > Conductivity Temperature Depth R/V AA > R/V Aurora Australis AMD AMD/AU CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
description |
Progress Code: completed See the referenced paper for additional details. Sampling. Sampling was conducted on board the RSV Aurora Australis during cruise V3 from 20 January to 7 February 2012. This cruise occupied a latitudinal transect from waters north of Cape Poinsett, Antarctica (65_ S) to south of Cape Leeuwin, Australia (37_ S) within a longitudinal range of 113-115_ E. Sampling was performed as described in ref. 29, with sites and depths selected to provide coverage of all major SO water masses. At each surface station, E250-560 l of seawater was pumped from E1.5 to 2.5m depth. At some surface stations, an additional sample was taken from the Deep Chlorophyll Maximum (DCM), as determined by chlorophyll fluorescence measurements taken from a conductivity, temperature and depth probe (CTD) cast at each sampling station. Samples of mesopelagic and deeper waters (E120-240 l) were also collected at some stations using Niskin bottles attached to the CTD. Sampling depths were selected based on temperature, salinity and dissolved oxygen profiles to capture water from the targeted water masses. Profiles were generated on the CTD descent, and samples were collected on the ascent at the selected depths. Deep water masses were identified by the following criteria: CDW 1/4 oxygen minimum (Upper Circumpolar Deep) or salinity maximum (Lower Circumpolar Deep); AABW 1/4 deep potential temperature minimum; AAIW 1/4 salinity minimum 18. The major fronts of the SO, which coincide with strong horizontal gradients in temperature and salinity 19,30, separate regions with similar surface water properties. The AZ lies south of the Polar Front (which was at 51_ S during sampling), whereas the PFZ lies between the Polar Front and the Subantarctic Front. In total, 25 samples from the AZ, PFZ, SAMW, AAIW, CDW and AABW were collected for this study (Fig. 1, Supplementary Data 1). Seawater samples were prefiltered through a 20-mm plankton net, biomass captured on sequential 3.0-, 0.8- and 0.1-mm 293-mm polyethersulphone membrane ... |
format |
Dataset |
title |
Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects |
title_short |
Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects |
title_full |
Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects |
title_fullStr |
Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects |
title_full_unstemmed |
Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects |
title_sort |
advection shapes southern ocean microbial assemblages independent of distance and environment effects |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/advection-shapes-southern-environment-effects/2819436 |
op_coverage |
Spatial: westlimit=113; southlimit=-65.0; eastlimit=115; northlimit=-37.0 Temporal: From 2012-01-20 to 2012-02-07 |
long_lat |
ENVELOPE(113.217,113.217,-65.767,-65.767) ENVELOPE(113.217,113.217,-65.767,-65.767) |
geographic |
Southern Ocean Poinsett Cape Poinsett |
geographic_facet |
Southern Ocean Poinsett Cape Poinsett |
genre |
Antarc* Antarctica aurora australis Southern Ocean |
genre_facet |
Antarc* Antarctica aurora australis Southern Ocean |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/advection-shapes-southern-environment-effects/2819436 AAS_3145_Advection |
_version_ |
1784260523292884992 |