Normalised Difference Vegetation Index (NDVI) images from Feb. 1991 have been compiled by processing and compositing AVHRR data from the Alice Springs receiving station to a nominal 1km resolution. The NDVI equation produces values in the range of -1.0 to 1.0, where increasing positive values indicate increasing green vegetation and negative values indicate nonvegetated surface features such as water, barren land, ice, and snow or clouds. Each image is compiled from AVHRR data collected over a fortnight.

This dataset is a composition of various datasets to form a map at the 1:100000 scale of the seagrass and underwater habitats from Shark Bay to NSW border going south and including Tasmania. Data extends up to 50Km offshore. The dataset was compiled largely by Dr Hugh Kirkman and subsequently updated by Dr. Ian Hahmdorf, (Bureau of Rural Sciences) and became part of CAMRIS as the CAMRIS Seagrass Dataset. Additional details (including a link to download the data as shapefile) are accessible via the www.environment.gov.au website (see links section).

Seagrass surveys were carried out between the Vanderlin Islands and Rosy Creek, Gulf of Carpentaria to investigate the impact of dredging by MacArthur River Mines. Data were collected on seagrass density, morphometrics, sediments, and environmental factors.

Measures of seagrass seed density were taken from sites around Groote Eylandt, Gulf of Carpentaria, in the 1980s, and from the Vanderlin Islands, Gulf of Carpentaria, in 1992.

This dataset contains seagrass distribution and density data from Marmion Lagoon, Perth, Western Australia. Every 6 months from 1979 until January 1998, two transects a north south and an east west (370 m and 330 m long) in 4 m of water were conducted. Any species or density changes along the transects were recorded.

Two mangrove sites and two seagrass sites were sampled in each region of the Gulf of Carpentaria; Weipa (between 1991 and 1994) and Groote Eylandt (between 1994 and 1995). The stable isotope ratios of seagrass, mangroves and prawns were measured, and the contribution of mangroves and seagrass to prawn food webs was estimated.

Seagrass aerial surveys were used to produce maps of the Groote Eylandt area. Samples of juvenile and sub-adult prawns were taken by beam trawl at Groote Eylandt, Blue Mud Bay and Sir Edward Pellew Islands under various sampling regimes between 1983 and 1989.

This dataset contains species distribution, abundance and identity data of benthic invertebrates from the Pittwater region, NSW. Epifauna samples were obtained every 3 months from mangroves and saltmarshes between June 1991 and March 1991. Taxa identified consisted of 9 species of molluscs, all of which were gastropods. The data were taken as a control site for similiar sampling in Jervis Bay. The data are part of the Jervis Bay Marine Ecological Study. NB - As the database has been lost, the only data still available are those published in the JERVIS BAY BASELINE STUDIES Final Report.

This dataset contains data on species distributions, productivity, reproduction and growth of mangroves and saltmarshes from Jervis Bay, NSW. The data were obtained from a variety of surveys and measurement techniques between October 1988 and July 1991. Taxa identified comprised of about 130 vascular flora species, 15 of which are exotic. Species numbers range from 2 species in the mangroves to more than 80 in the fringe forest. Population structures of the 5 dominant species - Avicennia marina, Aegiceras corniculatum, Casuarina glauca, Sclerostegia arbuscula and Gahnia filum vary spatially. Temporal change in populations of Avicennia has occurred over time intervals of 20 years, the other species appear to have remained stable over the past 50 years. 13 maps on the mangrove and saltmarsh complexes have been prepared at a scale of 1:4000. The Jervis Bay mangroves and saltmarshes were compared with other locations around Batemans Bay and Port Hacking. NB - As the database has been lost, the only data still available are those published in the JERVIS BAY BASELINE STUDIES Final Report.

Juvenile tiger prawns were collected by beam trawl in the Embley River, Gulf of Carpentaria in October 1993, March 1994 and October/November 1994. The following parameters were measured: prawn numbers, carapace length, species, seagrass, biomass, salinity, temperature and depth. Field experiments were carried out using enclosure nets.