Recent datasets

Light levels (i.e. water quality/turbidity) can be managed to minimise seagrass losses. Recent attempts to define threshold levels of light required to maintain GBR seagrass state has resulted in a spectrum of recommendations with no single definitive source document to guide regulation. We will compile the available information on light thresholds into a guiding document, which will become a key reference for managers and regulators to use in generating relevant water quality guidelines and conditions for developments such as dredging programs.

This project involves preparing, publishing, and visualizing approximately 50 recently submitted datasets, making them available through the eAtlas and the AODN. This proposal covers the activities of the eAtlas in 2015 (July - December). These are: 1. The eAtlas has approximately 50 datasets that were recently submitted for review that are awaiting preparation, publication and visualization. This project will complete the publication process for these datasets making them available via the eAtlas and with spatial datasets also being made available via the AODN. 2.

While coral geochemistry records are widely cited as evidence for increased suspended sediment loads delivered to the Great Barrier Reef since the 1850s, there has been little replication or quantification of the records. Indeed, most records are based on cores collected prior to the year 2000 when limited catchment monitoring data existed to ‘validate’ the interpretations that certain trace element ratios provided proxies of annual sediment loadings.

This project will progress an approach for incorporating environmental offsets into the Reef Trust through development of a prototype calculator to assist potential approval holders and relevant agencies in determining appropriate financial payments as offsets under the Reef Trust. It will extend the methodology currently used to calculate terrestrial offsets to the marine setting. It will delineate clearly the differences in applying such a calculator to the marine–catchment continuum and terrestrial settings.

This project conducts an ex-post evaluation of a water quality tender (auction) project. In 2007-08, a water quality pilot tender was trialled in the Lower Burdekin River area, funded by the Australian Government through the National Market Based Instruments and co-funded and administered by the NQ Dry Tropics. This project will collaborate with NQ Dry Tropics and engage with tender participants to review design, operational, administrative and other matters of the trial.

Refinement of biological indicators for condition assessment is an immediate priority as highlighted in a recent review of the GBR Marine Monitoring Program (MMP). Seagrass carbohydrate content is an early-warning indicator of water quality impacts. Samples collected quarterly since 2008 will be analysed and used to establish baselines and optimize protocols for applying carbohydrates as an indicator for future monitoring.

Increased human activities in the GBR and Torres Strait regions are expected to increase the sources and diversity of contaminants in their marine environments. Here, we will (i) determine the presence and locations of emerging contaminants based on monitoring data and the types of human activities present, and (ii) prioritize the identified emerging contaminants based on their potential risk to these marine environments.

This metadata is a brief overview of the National Environmental Science Program Tropical Water Quality (NESP TWQ) Hub. The aim of the National Environmental Science Programme (NESP) is to assist decision-makers to understand, manage and conserve Australia’s environment by funding world-class biodiversity and climate science.

This dataset shows the concentrations of multiple herbicides remaining over time in a simulation flask persistence experiment conducted in 2013. The aim of this study was to quantify the persistence multiple herbicides in a standard flask experiment. Time it takes for degradation of half of this herbicide is termed the "half-life". The half-life can be used to help develop environmental risk assessments. Methods: Herbicide degradation experiments were carried out in flasks according to the OECD methods for "simulation tests".

As part of the NERP TE project 2.3 temperature loggers were deployed at 15 sites across Torres Strait to measure the sea temperature. The loggers regularly measure the sea water temperature and record it in their memory. Every year or so the loggers are swapped with new loggers and the recorded data is extracted and recorded in the AIMS Real Time Data Systems database as part of the Australia wide Sea Temperature Observing System.

This dataset shows the geology of the Torres Strait region. The polygons in this dataset are a digital representation of the distribution or extent of geological units within the area. Polygons have a range of attributes including unit name, age, lithological description and an abbreviated symbol for use in labelling the polygons. These have been extracted from the Rock Units Table held in the Department of Natural Resources, Mines and Energy Merlin Database.

Benthic organisms were surveyed annually on fixed sites in one habitat on each of 47 selected core survey reefs from 1993 to 2005 in 6 regions throughout the Great Barrier Reef (GBR). Surveys were undertaken at 3 sites per reef, with 5x50m transects surveyed per site.In 2004 a new zoning plan was implemented in the Great Barrier reef Marine Park and in 2006 the pattern of surveys was changed. The original set of reefs (47) are surveyed in odd years (e.g. 2007) and a different set (56 reefs) are surveyed in even years.

Data on the general appearance and condition of coral reefs which have been manta towed in the Long Term Monitoring Project (LTMP). The data from 4 reef zones - front (seaward) and back (leeward), and north and south (flanks 1 and 2) - are used to create a web page on each zone for each reef (http://apps.aims.gov.au/reef-monitoring/).

In 6 sectors of the Great Barrier Reef (Cooktown/Lizard island, Cairns, Townsville, Whitsunday, Swain and Capricorn Bunker) 49 of the key manta tow reefs are designated 'core' survey reefs and are also surveyed using the scuba search technique. Where possible, three or more reefs in each sector have been selected in each of three positions across the continental shelf: inshore, mid-shelf and outer shelf. Results of scuba searches for juvenile Crown-of-Thorns Starfish (COTS), Acanthaster cf. solaris, and the mollusc Drupella.

64 'key' reefs in 11 sectors of the Great Barrier Reef (Cape Grenville, Princess Charlotte Bay, Cooktown/Lizard Island, Cairns, Innisfail, Townsville, Cape Upstart, Whitsunday, Pompey Complex, Swain and Capricorn Bunker) are annually surveyed for crown-of-thorns starfish using the manta tow technique. An additional 117 reefs from the sectors (excluding the Whitsunday, Swain and Capricorn-Bunker sectors) are scheduled for survey every third year ('cycle' reefs). The cycle manta tow reefs take second priority if surveys are unable to be completed because of bad weather and limited ship time.

This dataset shows the broad geology of the Wet Tropics of Queensland and surrounding areas from Ayr up to north of Cooktown. It is a combination of the "Geology of the Wet Tropics Bioregion (WTMA)" dataset (WtmaGeology) from the Vegetation mapping of the Wet Tropics and the state wide Regional Ecosystem mapping by the Queensland Government. Whilst the WtmaGeology dataset provided high resolution mapping of geology in the Wet Tropics Bioregion it only provided geology where there was remnant vegetation. As a result cleared and regrowth areas were not assigned a geology type.

The AIMS Long-term Monitoring Program (LTMP) is designed to detect changes in reef communities at a subregional scale. In this context, a subregion encompasses inshore, mid-shelf and outer shelf reefs across the continental shelf within one band of latitude (a sector).Reef surveys involve three approaches:1. broadscale manta tow surveys of crown-of-thorns starfish populations and reef-wide coral cover2. Intensive photographic surveys of stationary seafloor (benthic) organisms on fixed transects3.

Water Quality Data from the AIMS Long Term Monitoring Program. Water and sediments (another dataset) were sampled at the same sites adjacent to all 52 reefs where fish and benthic transects are conducted. Sampling occurs in open water within 500 metres of the reef, on both sides (north and south flanks) of the reef. Sampled reefs occur throughout the Great Barrier Reef, and the reefs of the North West coast of Australia. To track change.

As a sub-project of the now discontinued water quality component of the AIMS Long-term Monitoring Project, sediments were examined along cross-shelf transects commencing at the mouths of the Johnstone and Barron Rivers, which drain heavily cultivated areas. Results were compared with sediments from a transect commencing near the Pascoe River, which drains an uncultivated area of Cape York. Observations were made between November 1992 and April 1996. Sampling was conducted in alternate dry and wet seasons 1992-1993 but only in wet (summer) season 1994 and 1995.

This dataset consists of 31 monitoring sites in the Tully-Ingham area. Sites have various levels of rainforest invasion. Each site has a vegetation strata species list and counts of each species in each strata. Trees with stems > 10cm Diameter Breast Height (DBH) are identified and their DBH and height are measured. Date of survey May-July 2014. This dataset was originally designed to monitor the habitat of Mahogany Gliders and what effect fire had on different levels of rainforest invasion. Will a fire kill rainforest plants/seedlings?