SRE4 Sediment Chemistry

• Other Authors: AADC (owner), AU/AADC > Australian Antarctic Data Centre, Australia (hasAssociationWith), Australian Antarctic Data Centre (publisher), Australian Antarctic Division (sponsor), CONNELL, DAVE (distributor), CONNELL, DAVE (custodian), Jonathan S Stark (originator), STARK, JONATHAN SEAN (collaborator), STARK, JONATHAN SEAN (hasPrincipalInvestigator), STARK, JONATHAN SEAN (author)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: environment; biota; oceans; EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS; OIL SPILLS; OCEANS > MARINE SEDIMENTS > BIOTURBATION; SEDIMENT COMPOSITION; OCEAN CHEMISTRY > HYDROCARBONS; ENVIRONMENTAL GOVERNANCE/MANAGEMENT > ENVIRONMENTAL ASSESSMENTS; SEDIMENT CHEMISTRY; BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > AMPHIPODS; OSTRACODS; ISOPODS; Antarc*; Antarctic; Antarctica
• Online Access: https://researchdata.edu.au/sre4-sediment-chemistry/2816784

Progress Code: completed Purpose To determine the effects of hydrocarbons on marine sediment ecosystems in Antarctica. This record contains sediment chemistry data for various aspects of the SRE4 experiment, including grain size analysis (SRE4_SedimentGrainSize), TOC, Nitrogen and Phosphorus (SRE4_SedimentTOC/Nitrogen/Phosphorus) and metal concentrations in sediments from O'Brien Bay (SRE4_O'BrienBaySedimentMetals), where the hydrocarbon spiked sediment trays were deployed. Sediment Recruitment Experiment 4 (SRE4) was a large, long term (5 year) field experiment run at Casey Station (from 2001 to 2006) testing the effects of 4 different hydrocarbons on marine sediment ecosystems. Four different types of hydrocarbons were individually mixed with defaunated marine sediments and deployed in trays on the seabed at O'Brien Bay-1. Trays were collected after deployment periods of 5 weeks, 56 weeks, 62 weeks, 2 years and 5 years. In addition there was a bioturbation treatment using the burrowing urchin Abatus (at 56 weeks only). Samples were collected from 4 replicate trays of each treatment at each sampling time. Analyses were done of sediment hydrocarbon chemistry, microbial communities, meiofaunal communities, macrofaunal communities and diatom communities. The hydrocarbon treatments were: a synthetic Mobil lubricating oil; the same Mobil lubricating oil after 125? hours use in a vehicle engine; a Fuchs synthetic lubricating oil marketed as highly biodegradable; and Special Antarctic Blend diesel fuel (SAB). A control uncontaminated sediment treatment was used for comparison.