JSON RDF ISO19115-3 XML

Biological and chemical oceanographic measurements in the far northern Great Barrier Reef (1990)

Created 24/06/2017

Updated 09/10/2017

JSON RDF ISO19115-3 XML

In February 1990, 53 hydrographic stations were sampled in the far northern Great Barrier Reef. The cruise track was laid out to cover inshore, outer-shelf and Coral Sea waters within and seaward of three major coastal embayments, Lloyd Bay, Temple Bay and Shelburne Bay. Two additional stations were sampled in transit to the study area.

Water samples were collected with Niskin bottles through the full depth of the water column or upper 300m. A series of subsamples of water were drawn from the Niskin bottles and prepared for later analysis. Analyses conducted were dissolved nutrients, chlorophyll, suspended solids, particulate nitrogen (PON) and particulate phosphorous (POP). At primary production stations a subsample of water was taken for estimation of water column primary production using 14C-bicarbonate. A subsample of water was also taken to assess the contribution of pico-, nano, and phytoplankton to community biomass and productivity.

At most stations triplicate sediment samples were collected using a van Veen grab. Subsamples of the sediment were taken for determination of sediment nitrogen and phosphorous. Subsamples were also taken for grain-size analysis. The gravel fraction was further investigated to determine the percentage of material from biological or terrigenous sources.

Water column zooplankton stocks were sampled using bottom-to-surface vertical net tows at most stations. Subsamples were processed for later dry weight analysis.

Salinity and temperature profiles for 11 of the first 13 stations were derived from CTD casts. After the failure of the CTD, insitu temperatures were measured with reversing thermometers and surface and near bottom water samples were collected for analysis of salinity.

Subsurface irradiance profiles were measured at 24 stations.

Files and APIs

Tags

Additional Info

Field Value
Title Biological and chemical oceanographic measurements in the far northern Great Barrier Reef (1990)
Language English
Licence Other
Landing Page https://devweb.dga.links.com.au/data/dataset/4610149f-8547-4ce3-a9d2-bc849ae11505
Contact Point
Australian Institute of Marine Science
adc@aims.gov.au
Geospatial Coverage {"type": "Polygon", "coordinates": [[[142.8766666, -12.79000003], [144.1833333, -12.79000003], [144.1833333, -11.62666664], [142.8766666, -11.62666664], [142.8766666, -12.79000003]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Biological and chemical oceanographic measurements in the far northern Great Barrier Reef (1990)". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/biological-and-chemical-oceanographic-measurements-in-the-far-northern-great-barrier-reef-1990

Original dataset
Dataset copies

No duplicate datasets found.