Sea Ice Biota of Coastal Eastern Antarctica
Short term spatial coverage of sea ice between Mawson and Davis Stations (approximately 650 km). Complete species lists of copepods and other invertebrates found in the sea ice. The distribution and abundance of ice-associated copepods in the fast ice of the Australian Antarctic Territory were inves...
Other Authors: | , |
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Format: | Dataset |
Language: | unknown |
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Australian Ocean Data Network
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Online Access: | https://researchdata.ands.org.au/sea-ice-biota-eastern-antarctica/686030 https://data.aad.gov.au/metadata/records/ASAC_875 http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=810 https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=875 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_875 |
id |
ftands:oai:ands.org.au::686030 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans ICE TYPES EARTH SCIENCE SEA ICE CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS BIOMASS DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS CHLOROPHYLL A COPEPODS DRESCHERIELLA GLACIALIS FAST ICE PARALABIDOCERA ANTARCTICA STEPHOS LONGIPES SPECTROPHOTOMETERS FIELD INVESTIGATION FIELD SURVEYS AMD AMD/AU CEOS SOOS CONTINENT > ANTARCTICA ANTARCTICA > Mawson Larsemann Hills Rauer Islands O'Gorman Rocks Bluff Island Murphy Rocks GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans ICE TYPES EARTH SCIENCE SEA ICE CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS BIOMASS DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS CHLOROPHYLL A COPEPODS DRESCHERIELLA GLACIALIS FAST ICE PARALABIDOCERA ANTARCTICA STEPHOS LONGIPES SPECTROPHOTOMETERS FIELD INVESTIGATION FIELD SURVEYS AMD AMD/AU CEOS SOOS CONTINENT > ANTARCTICA ANTARCTICA > Mawson Larsemann Hills Rauer Islands O'Gorman Rocks Bluff Island Murphy Rocks GEOGRAPHIC REGION > POLAR Sea Ice Biota of Coastal Eastern Antarctica |
topic_facet |
biota oceans ICE TYPES EARTH SCIENCE SEA ICE CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS BIOMASS DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS CHLOROPHYLL A COPEPODS DRESCHERIELLA GLACIALIS FAST ICE PARALABIDOCERA ANTARCTICA STEPHOS LONGIPES SPECTROPHOTOMETERS FIELD INVESTIGATION FIELD SURVEYS AMD AMD/AU CEOS SOOS CONTINENT > ANTARCTICA ANTARCTICA > Mawson Larsemann Hills Rauer Islands O'Gorman Rocks Bluff Island Murphy Rocks GEOGRAPHIC REGION > POLAR |
description |
Short term spatial coverage of sea ice between Mawson and Davis Stations (approximately 650 km). Complete species lists of copepods and other invertebrates found in the sea ice. The distribution and abundance of ice-associated copepods in the fast ice of the Australian Antarctic Territory were investigated over a distance of approximately 650 km between October and December 1995. The six sites where collections were made were: offshore from Mawson station, Larsemann Hills (including Nella Bay), Rauer Islands (ice edge near Filla Is), O'Gorman Rocks and Bluff Island near Davis Station, and Murphy Rocks in the northern Vestfold Hills. Ice cores were obtained using SIPRE ice augers. Five to ten cores were collected along transects several km in length. Thickness of sea ice and snow cover were measured at each sampling site. Chlorophyll a concentrations were determined for each core. Copepods were isolated from the melted core water and identified and counted. Zooplankton tows were also made at each site where cores were collected. Nine species of copepods were identified from the cores. However, of these, only three were recorded regularly: Paralabidocera antarctica, Drescheriella glacialis and Stephos longipes. The abundance of copepods ranged between 0 and 147/L. The highest densities were recorded at the Larsemann Hills and the lowest at Murphy Rocks. Within the cores, the highest abundances were found in the bottom 10 cm of ice, irrespective of the species. Chlorophyll a concentrations ranged between 0.9 and 373 mg/m3. Data available: excel files containing sampling dates, sampling sites and abundances (number per L) of three dominant sea ice copepods, Paralabidocera antarctica, Drescheriella glacialis, Stephos longipes. Data are presented for developmental stages (nauplii, copepodites and adults) where available. Totals are also provided. Vertical distribution in some cores is also provided. Chlorophyll a concentrations (ug/L) provided for most sites. Detailed information about each of the spreadsheets is provided below: The chlorophyll spreadsheet shows chlorophyll concentrations for 5 sites in the AAT. The column headings are: core - reference number of the core collected subsection - depth in the core in cm volume - vol of melted core water volume added - 1 L of filtered seawater for melting % original - amount of total that core water represents (i.e. minus the 1L added) aliquot - volume subsampled for chlorophyll analysis acetone - amount added (mL) for extraction 750, 664, 647, 630 - wavelengths where absorbance was measured chloro a - amount of chlorophyll a in the sample ug/L - chloro a expressed as a concentration The spatial spreadsheet shows species abundances of three copepods at 4 sites N1 to NVI - nauplius stage 1 to 6 of a species CI to CVI - copepodite stage 1 to 6 of a species F or M - female or male of copepodite stage 5 or 6 1,1 etc - cores 1 and 2 from site 1 within a major location (e.g. 2 cores close together in the Larsemann Hills) The temporal spreadsheet shows abundances over time at 2 sites (O'Gorman Rocks, Bluff Is) near Davis and two species (Paralabidocera antarctica and Drescheriella glacialis) on several sampling dates N1 to N3 - total nauplii in each of three cores (i.e. not separated into stages as above) C1 to C3 - total copepodites A1 to A3 - total adults Then at the bottom are the means of each three cores. |
author2 |
AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) |
format |
Dataset |
title |
Sea Ice Biota of Coastal Eastern Antarctica |
title_short |
Sea Ice Biota of Coastal Eastern Antarctica |
title_full |
Sea Ice Biota of Coastal Eastern Antarctica |
title_fullStr |
Sea Ice Biota of Coastal Eastern Antarctica |
title_full_unstemmed |
Sea Ice Biota of Coastal Eastern Antarctica |
title_sort |
sea ice biota of coastal eastern antarctica |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.ands.org.au/sea-ice-biota-eastern-antarctica/686030 https://data.aad.gov.au/metadata/records/ASAC_875 http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=810 https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=875 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_875 |
op_coverage |
Spatial: northlimit=-67.6027; southlimit=-67.6027; westlimit=62.8738; eastLimit=62.8738 Spatial: northlimit=-68.2333; southlimit=-68.2333; westlimit=78.7333; eastLimit=78.7333 Spatial: northlimit=-68.5538; southlimit=-68.5538; westlimit=77.9082; eastLimit=77.9082 Spatial: northlimit=-68.571; southlimit=-68.571; westlimit=77.9502; eastLimit=77.9502 Spatial: northlimit=-68.85; southlimit=-68.85; westlimit=77.8333; eastLimit=77.8333 Spatial: northlimit=-69.4; southlimit=-69.4; westlimit=76.2167; eastLimit=76.2167 Temporal: From 1995-10-01 to 1995-12-31 |
long_lat |
ENVELOPE(77.908,77.908,-68.554,-68.554) ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(76.217,76.217,-69.400,-69.400) ENVELOPE(62.874,62.874,-67.603,-67.603) ENVELOPE(78.733,78.733,-68.233,-68.233) ENVELOPE(77.950,77.950,-68.571,-68.571) ENVELOPE(77.833,77.833,-68.850,-68.850) ENVELOPE(62.8738,62.8738,-67.6027,-67.6027) ENVELOPE(78.7333,78.7333,-68.2333,-68.2333) ENVELOPE(77.9082,77.9082,-68.5538,-68.5538) ENVELOPE(77.9502,77.9502,-68.571,-68.571) ENVELOPE(77.8333,77.8333,-68.85,-68.85) ENVELOPE(76.2167,76.2167,-69.4,-69.4) |
geographic |
Antarctic Australian Antarctic Territory Bluff Island Davis Station Davis-Station Larsemann Hills Mawson Station Murphy Rocks O'Gorman Rocks Rauer Islands Vestfold Vestfold Hills |
geographic_facet |
Antarctic Australian Antarctic Territory Bluff Island Davis Station Davis-Station Larsemann Hills Mawson Station Murphy Rocks O'Gorman Rocks Rauer Islands Vestfold Vestfold Hills |
genre |
Antarc* Antarctic Antarctica Bluff Island Murphy Rocks Rauer Islands Sea ice Copepods |
genre_facet |
Antarc* Antarctic Antarctica Bluff Island Murphy Rocks Rauer Islands Sea ice Copepods |
op_source |
https://data.aad.gov.au |
op_relation |
https://researchdata.ands.org.au/sea-ice-biota-eastern-antarctica/686030 52e30542-59f6-40e3-9a2e-b6696408f02d https://data.aad.gov.au/metadata/records/ASAC_875 http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=810 https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=875 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_875 |
_version_ |
1766245652309737472 |
spelling |
ftands:oai:ands.org.au::686030 2023-05-15T13:46:55+02:00 Sea Ice Biota of Coastal Eastern Antarctica AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) Spatial: northlimit=-67.6027; southlimit=-67.6027; westlimit=62.8738; eastLimit=62.8738 Spatial: northlimit=-68.2333; southlimit=-68.2333; westlimit=78.7333; eastLimit=78.7333 Spatial: northlimit=-68.5538; southlimit=-68.5538; westlimit=77.9082; eastLimit=77.9082 Spatial: northlimit=-68.571; southlimit=-68.571; westlimit=77.9502; eastLimit=77.9502 Spatial: northlimit=-68.85; southlimit=-68.85; westlimit=77.8333; eastLimit=77.8333 Spatial: northlimit=-69.4; southlimit=-69.4; westlimit=76.2167; eastLimit=76.2167 Temporal: From 1995-10-01 to 1995-12-31 https://researchdata.ands.org.au/sea-ice-biota-eastern-antarctica/686030 https://data.aad.gov.au/metadata/records/ASAC_875 http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=810 https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=875 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_875 unknown Australian Ocean Data Network https://researchdata.ands.org.au/sea-ice-biota-eastern-antarctica/686030 52e30542-59f6-40e3-9a2e-b6696408f02d https://data.aad.gov.au/metadata/records/ASAC_875 http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=810 https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=875 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_875 https://data.aad.gov.au biota oceans ICE TYPES EARTH SCIENCE SEA ICE CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS BIOMASS DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS CHLOROPHYLL A COPEPODS DRESCHERIELLA GLACIALIS FAST ICE PARALABIDOCERA ANTARCTICA STEPHOS LONGIPES SPECTROPHOTOMETERS FIELD INVESTIGATION FIELD SURVEYS AMD AMD/AU CEOS SOOS CONTINENT > ANTARCTICA ANTARCTICA > Mawson Larsemann Hills Rauer Islands O'Gorman Rocks Bluff Island Murphy Rocks GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:06:52Z Short term spatial coverage of sea ice between Mawson and Davis Stations (approximately 650 km). Complete species lists of copepods and other invertebrates found in the sea ice. The distribution and abundance of ice-associated copepods in the fast ice of the Australian Antarctic Territory were investigated over a distance of approximately 650 km between October and December 1995. The six sites where collections were made were: offshore from Mawson station, Larsemann Hills (including Nella Bay), Rauer Islands (ice edge near Filla Is), O'Gorman Rocks and Bluff Island near Davis Station, and Murphy Rocks in the northern Vestfold Hills. Ice cores were obtained using SIPRE ice augers. Five to ten cores were collected along transects several km in length. Thickness of sea ice and snow cover were measured at each sampling site. Chlorophyll a concentrations were determined for each core. Copepods were isolated from the melted core water and identified and counted. Zooplankton tows were also made at each site where cores were collected. Nine species of copepods were identified from the cores. However, of these, only three were recorded regularly: Paralabidocera antarctica, Drescheriella glacialis and Stephos longipes. The abundance of copepods ranged between 0 and 147/L. The highest densities were recorded at the Larsemann Hills and the lowest at Murphy Rocks. Within the cores, the highest abundances were found in the bottom 10 cm of ice, irrespective of the species. Chlorophyll a concentrations ranged between 0.9 and 373 mg/m3. Data available: excel files containing sampling dates, sampling sites and abundances (number per L) of three dominant sea ice copepods, Paralabidocera antarctica, Drescheriella glacialis, Stephos longipes. Data are presented for developmental stages (nauplii, copepodites and adults) where available. Totals are also provided. Vertical distribution in some cores is also provided. Chlorophyll a concentrations (ug/L) provided for most sites. Detailed information about each of the spreadsheets is provided below: The chlorophyll spreadsheet shows chlorophyll concentrations for 5 sites in the AAT. The column headings are: core - reference number of the core collected subsection - depth in the core in cm volume - vol of melted core water volume added - 1 L of filtered seawater for melting % original - amount of total that core water represents (i.e. minus the 1L added) aliquot - volume subsampled for chlorophyll analysis acetone - amount added (mL) for extraction 750, 664, 647, 630 - wavelengths where absorbance was measured chloro a - amount of chlorophyll a in the sample ug/L - chloro a expressed as a concentration The spatial spreadsheet shows species abundances of three copepods at 4 sites N1 to NVI - nauplius stage 1 to 6 of a species CI to CVI - copepodite stage 1 to 6 of a species F or M - female or male of copepodite stage 5 or 6 1,1 etc - cores 1 and 2 from site 1 within a major location (e.g. 2 cores close together in the Larsemann Hills) The temporal spreadsheet shows abundances over time at 2 sites (O'Gorman Rocks, Bluff Is) near Davis and two species (Paralabidocera antarctica and Drescheriella glacialis) on several sampling dates N1 to N3 - total nauplii in each of three cores (i.e. not separated into stages as above) C1 to C3 - total copepodites A1 to A3 - total adults Then at the bottom are the means of each three cores. Dataset Antarc* Antarctic Antarctica Bluff Island Murphy Rocks Rauer Islands Sea ice Copepods Research Data Australia (Australian National Data Service - ANDS) Antarctic Australian Antarctic Territory Bluff Island ENVELOPE(77.908,77.908,-68.554,-68.554) Davis Station ENVELOPE(77.968,77.968,-68.576,-68.576) Davis-Station ENVELOPE(77.968,77.968,-68.576,-68.576) Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Mawson Station ENVELOPE(62.874,62.874,-67.603,-67.603) Murphy Rocks ENVELOPE(78.733,78.733,-68.233,-68.233) O'Gorman Rocks ENVELOPE(77.950,77.950,-68.571,-68.571) Rauer Islands ENVELOPE(77.833,77.833,-68.850,-68.850) Vestfold Vestfold Hills ENVELOPE(62.8738,62.8738,-67.6027,-67.6027) ENVELOPE(78.7333,78.7333,-68.2333,-68.2333) ENVELOPE(77.9082,77.9082,-68.5538,-68.5538) ENVELOPE(77.9502,77.9502,-68.571,-68.571) ENVELOPE(77.8333,77.8333,-68.85,-68.85) ENVELOPE(76.2167,76.2167,-69.4,-69.4) |