Recent datasets

This dataset contains data on carbon chemistry on inshore reefs of the Great Barrier Reef (GBR). Main parameters measured were temperature, total alkalinity and dissolved inorganic carbon. The data was collected six times over two years (September 2011 - June 2012) covering a comprehensive latitudinal range. The aim of this study was to investigate carbon chemistry on inshore reefs, and compare it to offshore reefs and historical data.

This dataset consists of one data file (spreadsheet) from a 2 week aquarium experiment manipulating pH (pCO2) changes and measuring photosynthetic and growth responses of three tropical seagrass species (Cymodocea serrulata, Halodule uninervis and Thalassia hemprichii). The aim of this study was to test the hypothesis that increased pCO2 would increase photosynthetic and growth rates to various extents between seagrass species.

Sediment samples for foraminiferan community analysis were collected from 20 reefs located between 13.5°S and 20.5°S within the Great Barrier Reef. Most of these reefs are inshore fringing reefs which can be grouped into three distinct geographical regions: eight reefs of the Whitsunday area (collected in August 2004), four reefs from Princess Charlotte Bay, and four from the Wet Tropic area (both collected in October 2004).

This dataset consists of one csv data file from field derived experiments at tropical carbon dioxide seeps in Papua New Guinea, measuring the response parameters: calcification, photosynthesis, carbon and nitrogen contents and carbon isotopic signatures on Halimeda opuntia grown under ocean acidification conditions. The aim of this study was to investigate the effects of ocean acidification on Halimeda opuntia grown under ocean acidification conditions at tropical carbon dioxide seeps.

This dataset shows the measured response of the photosystems of seagrasses to herbicides in experiments conducted in 2012-2013. The data is provided as a multi-sheet spreadsheet. The aim of this study was to apply standard ecotoxicology protocols to quantify the concentrations of four priority PSII herbicides that inhibit photochemistry by 10, 20 and 50% (IC10, IC20 and IC50) over 72 hrs in two common seagrass species from the GBR lagoon.

This project will undertake a scoping study to design a pilot nitrogen trading scheme for key cane growing catchments draining into the Great Barrier Reef Lagoon. The study will synthesise the current understanding of nitrogen dynamics, local expertise and on-ground practices from the cane industry, with lessons from successful nutrient trading programs elsewhere. Tradable permit simulation will estimate the cost effectiveness of the scheme for reducing nitrogen loads into the GBR, and the financial impact on sugarcane growers.

This project will synthesize experimental and field data from NERP, MTSRF and other work for key coral reef organisms and processes to produce a quantitative approach or how multiple pressures lead to cumulative impacts on the GBR. Applying quantitative tools developed for ecotoxicology and water quality guidelines, we will investigate critical interactive effects, environmental thresholds and their uncertainties, and their application in risk assessments.

The current tools used to estimate the contribution of bank erosion to the Great Barrier Reef (i.e. SourceCatchments model), are based on empirical relationships using little or no data from tropical river systems.

This project intends to facilitate targeted consultations with key individuals and institutions (i.e. Torres Strait Regional Authority, GBR TO’s and Land Councils, etc.) to seek feedback on the implementation of the NESP TWQ Hub Indigenous Engagement and Participation Strategy (IEPS). This will enable the evolution of a strong Implementation Strategy for the IEPS.

This project will improve the accuracy of aerial survey estimates of the size and distribution of dugong and green turtle populations in western and central Torres Strait by: (1) collecting and analysing data on their movements and diving behaviour, and (2) estimating the proportion of turtles seen during aerial surveys that are the large female green turtles harvested by Indigenous hunters.

This project addresses a series of critical initial steps required to develop a cost-effective integrated monitoring program. First, environmental, social and economic elements and indicators will be identified that could be monitored to enable an integrated evaluation of the Long Term Sustainability Plan (LTSP) targets. Second, existing monitoring programs will be evaluated against the newly developed LTSP targets, to ensure that the relevant aspects of these monitoring programs are considered for inclusion in an integrated monitoring program.

This project describes the activities of the AIMS long-term program to monitor the effects of zoning on coral reef communities in the period July-October 2015. 1. In that period there will be one survey trip (out of four made annually) to the southern GBR (Capricorn-Bunker and Swain Reefs) using the RV Cape Ferguson. As well as forming part of the long-term program, these reefs are interesting as they are recovering from the effects of severe storms, notably TC Hamish in 2009. 2.

The Keppel Islands, southern GBR, suffered successive climatic disturbance events (coral bleaching, flood plumes) between 2006 and 2013. Long-term monitoring at 26 sites revealed significant declines in coral cover and fish abundance on both no-take reserve (green zone) and fished reefs. In February 2015, Cyclone Marcia (Category 5) hit the Keppel Islands. We propose to re-survey all 26 monitoring sites to quantify cyclone damage and to identify remaining refuge areas that can support reef recovery and long-term resilience.

The project will conduct an inclusive facilitated workshop with key researchers and stakeholders to identify the future knowledge needs for improved management of dredging activities in the GBR. Building upon the recent dredging synthesis and other resources, this workshop will distill a clear, prioritized research framework to inform future NESP investment into dredging research.

This project will lay the foundations for the development of a reliable CoTS surveillance and control program based on detailed understanding of i) CoTS ecology, population dynamics and movement, ii) the CoTS control program’s capabilities and constraints, and, iii) IPM principles. In the project’s initial phase a COTS Integrated Pest Management (IPM) Workshop will be conducted. This workshop will bring together managers and researchers with purpose of defining a tactical approach to current COTS management and a strategic approach for the management of future outbreaks.

This project aims to provide information on cost benchmarks for key management actions to improve water quality into the GBR. The project involves a review and evaluation of summary data about NRM projects that have been funded recently to address water quality issues. By pooling the data across NRM regions and different activities, it will be possible to identify the distribution of cost/outcome ratios. From this, potential benchmarks can be established (e.g. 75% of sediment reduction actions are less than $xxx/tonne, 95% are less than $XXX per ton).

1. Design of a pilot sub-catchment scale monitoring, modelling and extension program, based on end-user workshop, existing risk assessments, monitoring and modelling programs, for subsequent implementation with farmer’s support to identify reef pollutant “spikes/hotspots”, their causes and the necessary areas for extension to improve management. 2. Pilot implementation to test the design with the assistance of farmers, extension providers, etc in a particular local area to underpin future initiatives such as nutrient trading. 3.

Australian governments have addressed water quality issues in the Great Barrier Reef (Reef) over the last decade. While much has improved, more is needed. Reef environmental outcomes, however, depend on the interplay among diverse/fragmented governance “activities” (e.g. water allocation, ports-planning, regional NRM). Despite being recognized in the Reef 2050 Long-Term Sustainability Plan (LTSP), there is no coordinated system for benchmarking/monitoring the health of the overall Reef governance system/constituent activities. NERP supported a new method for doing so.

Alluvial gully erosion contributes 20-40% of fine sediment from the three largest sediment contributing catchments to the GBR, yet there has been limited effort to manage this major sediment source. Cost effective reduction of sediment from these alluvial gullies requires data on effective management strategies. We will take advantage of a ‘natural experiment’ that occurred when Cyclone Ita passed over existing trial management sites in the Normanby catchment. The project will evaluate the effectiveness of different management strategies to reduce erosion from alluvial gullies.

This project intends to conduct a workshop with key researchers and stakeholders to establish the future research framework for NESP investment into better understanding of box-jellyfishes presence and risk in the Great Barrier Reef. This will include defining the scope of work required to: identify how species of Irukandji and stingers respond to changing water quality conditions, predictions of box-jellyfishes presence based on environmental conditions, determine ecological impacts, innovative management options.