{"help": "https://data.gov.au/data/en/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "metadata@aad.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 1, "geospatial_topic": [], "id": "63252ddb-69f5-4e91-b6bc-02a32c0a02b7", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-06-23T08:46:36.940267", "metadata_modified": "2025-06-23T08:46:36.940275", "name": "the-role-of-iron-as-a-micro-nutrient-to-the-antarctic-sea-ice-zone-algal-community", "notes": "Metadata record for data from AAS (ASAC) project 3026.\nPublic \nThis project will assess the importance of the trace micro-nutrient element iron to Antarctic sea-ice algal communities during the International Polar Year (2007-2009). We will investigate the biogeochemistry of iron, including a comprehensive examination of its distribution, speciation, cycling and role in fuelling ice-edge phytoplankton blooms. A significant part of this research will concentrate on the the influence of organic exopolysaccharides on iron solubility, complexation and bioavailability, both within the ice and in surrounding snow and surface seawater. This innovative research will improve our understanding of key processes that control the productivity of the climatically-important Antarctic sea-ice zone.\nProject objectives:\nThis project will assess the importance of the trace element iron (Fe) as a micro-nutrient to seasonal sea-ice algal communities in the Australian sector of Antarctica during the International Polar Year (2007-09). We will investigate the biogeochemistry of Fe, including a comprehensive examination of its distribution, speciation, cycling and role in fuelling ice-edge phytoplankton blooms. A significant part of this research will concentrate on the influence of organic exopolysaccharides (EPS) on Fe solubility and complexation (and hence bioavailability), both within the ice and in surrounding surface waters. This innovative research will improve our understanding of key processes that control the productivity of the climatically-important Antarctic sea-ice zone.\nSpecifically, in this project:\n- The biogeochemical behaviour of Fe in sea-ice with regards to EPS complexation, and key physicochemical and biological data will be evaluated.\n- The bioavailability of Fe for phytoplankton growth during sea-ice melt will be investigated through laboratory-based experiments designed to mimic spring conditions.\n- The distribution of other bioactive trace elements in the Antarctic sea-ice environment will be examined as a means of fingerprinting the source(s) of Fe, as well as indicating their biological requirement.\nTaken from the 2008-2009 Progress Report:\nProgress against objectives:\nIn the last twelve months we achieved all the objectives planned for the shore-based sample processing and analysis from the SIPEX voyage (fieldwork September-October 2007). An extensive and unique seasonal and spatial data set was put together including parameters such as ice texture, salinity, temperature, Chlorophyll a, particulate organic carbon (POC), dissolved\norganic carbon (DOC), macro-nutrients (silicate, phosphate and nitrate), and exoplysaccharides (EPS, using both alcian blue and PSA methods). Dissolved iron (dFe) and total dissolvable iron (TDFe) were analysed by flow injection - chemiluminescence (FIA-CL) analysis in Hobart. Polycarbonate (PC) filters (Nuclepore 0.2 micron pore size) retaining particulate metals were digested\nin a mixture of strong, ultrapure acids (750 micro litre 12N HCl, 250 micro litre 40% HF, 250 micro litre 14N HNO3) on a hotplate at 125 degrees C for 8 h. The procedure was successfully applied to plankton, estuarine and river sediment reference materials to verify the recovery of the digestion treatment. The concentrations of particulate iron (PFe) were determined by high resolution ICP-MS at the Central Science Laboratory at UTAS. This data has been quality-controlled, analysed, interpreted and published (see below).\nDue to the fact that logistical support was not possible for 2008/09 (insufficient berths at Casey Station) despite approval of our project, the field component of the project was delayed.\nTaken from the 2009-2010 Progress Report:\nProgress against objectives:\nMonthly Milestones of PhD student Pier van der Merwe:\nSuccessful Antarctic research expedition occurred in Oct-Dec 2009 at Casey Station Antarctica with logistical support from AAS project #3026 (flight on FA02 and berths at Casey station as well as field support of personnel).\nOCT-DEC 2009 - Antarctic time series data collection and processing successful. Data analysis scheduled for Jan - Mar. Write up of last paper(s) scheduled for Mar-June. Final completion of thesis due in August.\nDEC - Chlorophyll a data analysed\nJAN - FIA and CLECSV analyses start simultaneously\nFEB - Finish FIA analyses and attend Ocean science meeting in Portland Oregon.\nMAR - Finish CLECSV analyses and run POC and PFe digestions and analyses. Scheduled with Thomas Rodemann and Ashley Townsend at the CSL, UTAS.\nAPR - MAY Data analysis and write up of 3rd paper, and possibly 4th based on field work at Casey station Oct-Dec 2009. \nSee the child metadata records for more information about the data.", "num_resources": 3, "num_tags": 49, "organization": {"id": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "name": "australian-ocean-data-network", "title": "Australian Ocean Data Network", "type": "organization", "description": "Harvester for Australian Ocean Data Network", "image_url": "", "created": "2025-06-23T12:29:10.320926", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://catalogue.aodn.org.au", "href": "https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/the-role-of-iron-as-a-micro-nutrient-to-the-antarctic-sea-ice-zone-algal-community", "title": "Australian Oceans Data Network"}, "owner_org": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[110.48, -66.32], [127.95, -66.32], [127.95, -64.22], [110.48, -64.22], [110.48, -66.32]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[110.48, -66.32], [127.95, -66.32], [127.95, -64.22], [110.48, -64.22], [110.48, -66.32]]]}", "state": "active", "temporal_coverage_from": "2007-09-11 00:00:00", "temporal_coverage_to": "2010-03-31 00:00:00", "title": "The role of iron as a micro-nutrient to the Antarctic sea-ice zone algal community", "type": "dataset", "unpublished": false, "url": null, "version": null, "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2025-06-23T08:46:36.945862", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Public information for ASAC project 3026", "format": "HTML", "hash": "", "id": "bbe70b00-58c8-42d1-8f38-6261bef7fc2d", "last_modified": null, "metadata_modified": "2025-06-23T08:46:36.856823", "mimetype": null, "mimetype_inner": null, "name": "PROJECT HOME PAGE", "package_id": "63252ddb-69f5-4e91-b6bc-02a32c0a02b7", "position": 0, "resource_locator_function": "fileAccess", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "https://projects.aad.gov.au/search_projects_results.cfm?project_no=3026", "url_type": null, "zip_extract": false}, {"cache_last_updated": null, "cache_url": null, "created": "2025-06-23T08:46:36.945867", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Citation reference for this metadata record and dataset.", "format": "HTML", "hash": "", "id": "d3689667-c79b-4ce9-a6d2-5198f6ac7804", "last_modified": null, "metadata_modified": "2025-06-23T08:46:36.856993", "mimetype": null, "mimetype_inner": null, "name": "VIEW RELATED INFORMATION", "package_id": "63252ddb-69f5-4e91-b6bc-02a32c0a02b7", "position": 1, "resource_locator_function": "fileAccess", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_3026", "url_type": null, "zip_extract": false}, {"cache_last_updated": null, "cache_url": null, "created": "2025-06-23T08:46:36.945869", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "", "format": "PNG", "hash": "", "id": "638e2b80-4c74-4f3c-914c-92ac9bd297b0", "last_modified": null, "metadata_modified": "2025-06-23T08:46:36.857105", "mimetype": null, "mimetype_inner": null, "name": "Creative Commons by Attribution logo", "package_id": "63252ddb-69f5-4e91-b6bc-02a32c0a02b7", "position": 2, "resource_locator_function": "", "resource_locator_protocol": "", "resource_type": null, "size": null, "state": "active", "url": "https://i.creativecommons.org/l/by/3.0/88x31.png", "url_type": null, "zip_extract": false}], "tags": [{"display_name": "ACE/CRC", "id": "0017d8e1-c058-4dd2-bca2-c02e36c1ffed", "name": "ACE/CRC", "state": "active", "vocabulary_id": null}, {"display_name": "AMD", "id": "dba7c99d-b0de-4b01-b166-360aff9b5053", "name": "AMD", "state": "active", "vocabulary_id": null}, {"display_name": "AMD/AU", "id": "3ea7b640-ce0e-4158-9ae0-c1b4c3467b7c", "name": "AMD/AU", "state": "active", "vocabulary_id": null}, {"display_name": "AUTOANALYZER", "id": "fdac39d8-8b63-4db2-9dbb-8ccb00eea9e4", "name": "AUTOANALYZER", "state": "active", "vocabulary_id": null}, {"display_name": "CEOS", "id": "14765c9b-bc4c-4a36-a3a8-5bc635b910a9", "name": "CEOS", "state": "active", "vocabulary_id": null}, {"display_name": "CHN ANALYZERS > Carbon, Hydrogen, Nitrogen Analyzers", "id": "f11a9b9e-edef-46cc-951f-b2f317f4d748", "name": "CHN ANALYZERS > Carbon, Hydrogen, Nitrogen Analyzers", "state": "active", "vocabulary_id": null}, {"display_name": "CONTINENT > ANTARCTICA", "id": "3665ce2e-57eb-4d28-9b51-de889028c0c1", "name": "CONTINENT > ANTARCTICA", "state": "active", "vocabulary_id": null}, {"display_name": "CORING DEVICES", "id": "b91deec6-7c1d-4619-a902-1858b6744a70", "name": "CORING DEVICES", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE", "id": "4a219012-46ce-467c-9ffd-ac9825438884", "name": "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON", "id": "9e711dc8-3fe4-49b1-a6db-35a81b6fd4fd", "name": "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICEBERGS", "id": "8e9e80ce-7594-4690-9b93-7ad1f9bfce94", "name": "EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICEBERGS", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE", "id": "4183dca8-7ba2-4021-995b-2d62393eb76b", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE DEPTH/THICKNESS", "id": "b918aa3e-0428-4d96-832f-bbfc0a513c1d", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE DEPTH/THICKNESS", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE FLOES", "id": "e363090e-13f4-499b-9d4d-4dbd780ca2ba", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE FLOES", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE", "id": "c5b55436-6e94-4f2d-84d0-b3e746b748c1", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TYPES", "id": "06e32159-9776-4122-ae91-0a87b1f34426", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TYPES", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ISOTOPES", "id": "595c724c-2d65-4e44-8c8f-a43864f39344", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > ISOTOPES", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > PACK ICE", "id": "611e98eb-3933-40a6-8797-24b5be5e6d49", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > PACK ICE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > SALINITY", "id": "1533bd8f-c938-4a09-b928-0080cf5d1061", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > SALINITY", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > SNOW DEPTH", "id": "8735d562-fefa-494e-bd84-15a60cd9e559", "name": "EARTH SCIENCE > CRYOSPHERE > SEA ICE > SNOW DEPTH", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SNOW/ICE", "id": "950cdb3d-96fc-4c5f-9a3e-f29dcd636e55", "name": "EARTH SCIENCE > CRYOSPHERE > SNOW/ICE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS", "id": "f4ccdee9-b40b-4f62-81bd-a2acf722d626", "name": "EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING", "id": "6b4c58a7-fe35-40d1-8115-71353986e94a", "name": "EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA", "id": "daf45d01-dea3-497a-9a21-b7d185621836", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > BIOGEOCHEMICAL CYCLES", "id": "1f92956d-975b-40c6-923f-c2aa7c43d8a8", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > BIOGEOCHEMICAL CYCLES", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL", "id": "d1f851f2-334e-4d05-ab25-d83f1e65ecd6", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "id": "17678d3e-388e-4208-a1cc-a228de4eaa8e", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE", "id": "03afb7d0-8295-4942-b88c-f529080519a5", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS", "id": "7c203f5d-051b-40db-8f26-2a4e69da7e55", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON", "id": "df1f212d-f257-46c0-9216-15e69bf3aaf7", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER", "id": "2b2f81ef-9dfe-4b8f-98d5-c42e1df35682", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "id": "b7ba5647-1d02-4a34-82c0-0a98998a6782", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL", "id": "02912a30-eb7a-49ad-9b6b-a655ea4a0f09", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "id": "008f3c6a-0a3f-4ef8-ad97-c21a5feb4053", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > TRACE ELEMENTS", "id": "e04eb54f-522d-43f5-a5f2-5c73016c81d6", "name": "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > TRACE ELEMENTS", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "id": "8b8118ae-2d4d-4507-8c97-6c24b0d2ca7e", "name": "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "id": "6d29b069-f9a6-4a7f-b9ab-1447649c0226", "name": "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCE > OCEANS > SEA ICE", "id": "4d86d699-a118-4bd8-9b91-af377f3d5222", "name": "EARTH SCIENCE > OCEANS > SEA ICE", "state": "active", "vocabulary_id": null}, {"display_name": "EPS", "id": "068b37c4-d91e-4c6b-87f9-a098c2550438", "name": "EPS", "state": "active", "vocabulary_id": null}, {"display_name": "FIELD SURVEYS", "id": "8bf5758e-85a9-4d16-8174-b07ed7b770e4", "name": "FIELD SURVEYS", "state": "active", "vocabulary_id": null}, {"display_name": "GEOGRAPHIC REGION > POLAR", "id": "3bac0051-c501-49f7-80ab-1484228e2e08", "name": "GEOGRAPHIC REGION > POLAR", "state": "active", "vocabulary_id": null}, {"display_name": "OCEAN > SOUTHERN OCEAN", "id": "04d36312-0409-4eb6-b2c9-7fdd86d4df2b", "name": "OCEAN > SOUTHERN OCEAN", "state": "active", "vocabulary_id": null}, {"display_name": "Probes", "id": "258b1414-81e6-4fcc-b152-9fbae81ffde8", "name": "Probes", "state": "active", "vocabulary_id": null}, {"display_name": "SHIPS", "id": "f2cae3a7-e024-441b-90f5-e6a63e5491bc", "name": "SHIPS", "state": "active", "vocabulary_id": null}, {"display_name": "TEMPERATURE PROBES", "id": "8081fd47-8e09-4ca4-8c47-90279648f8e2", "name": "TEMPERATURE PROBES", "state": "active", "vocabulary_id": null}, {"display_name": "iron", "id": "97d88344-d7e0-49e4-a58b-da1ed365e76d", "name": "iron", "state": "active", "vocabulary_id": null}, {"display_name": "micro-nutrient", "id": "30332bf1-92bb-4eac-9daf-57a300c15d7e", "name": "micro-nutrient", "state": "active", "vocabulary_id": null}, {"display_name": "sea ice", "id": "3d1779b9-4f8c-4a10-9816-d215819e916e", "name": "sea ice", "state": "active", "vocabulary_id": null}, {"display_name": "sea-ice zone", "id": "f22f9373-bf94-47bf-83fc-a6f546461b0b", "name": "sea-ice zone", "state": "active", "vocabulary_id": null}], "groups": [], "relationships_as_subject": [], "relationships_as_object": [], "extras": [{"key": "harvest_object_id", "value": "ac1f0753-017b-40c7-8e19-4615356aa7e9"}, {"key": "harvest_source_id", "value": "a2216e59-91ec-48b1-83cc-d35d9f09fcec"}, {"key": "harvest_source_title", "value": "Australian Oceans Data Network"}]}}