Articles

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The Great Barrier Reef (GBR) is currently experiencing a 4th wave of crown-of-thorns seastar (Acanthaster planci) infestations since the 1960’s. The seastars are spreading rapidly with reefs from Lizard Island to Cairns suffering massive coral mortality. The race is on again to learn more about the biology of COTS and fund some smart science to develop strategies that will miminise the coral loss caused by the voracious coral predator.
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Raine Island, a 27.5 hectare cay situated on a detached reef and located in the far northern Great Barrier Reef is, along with the adjacent Moulter Cay, the focus of approximately 90% of all nesting effort of the Northern Great Barrier Reef (NGBR) green turtle genetic stock. The small sand cay is the largest rookery in the world for the green turtle (Chelonia mydas) with upwards of 15 000 females having been recorded attempting to nest at the one time along the approximately 1.8km of beach.
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Raine Island, a 27.5 hectare cay situated on a detached reef and located in the far northern Great Barrier Reef is, along with the adjacent Moulter Cay, the focus of approximately 90% of all nesting effort of the Northern Great Barrier Reef (NGBR) green turtle genetic stock (Limpus 2008).
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Within a funding structure such as NERP TE, 'governance' is often described within the narrow framework of program roles and responsibilities. However there are benefits of considering the broader system of governance that such programs sit in, and in ensuring that each phase within the program cycle contributes to good governance outcomes. This broader idea of governance represents "the way society gets things done".

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On the Great Barrier Reef sharks are readily identified as fearsome predators. In ecological theory, species that are at the top of the food chain are commonly described as apex predators. However generalising all sharks as apex predators is misleading and may lead to poor outcomes in the context of managing coral reefs and sharks for conservation.

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During trips to Torres Strait in collaboration with TSRA in 2013 and 2014 coral skeletons were collected under a permit issued by the Commonwealth of Australia under the Torres Strait Fisheries Act 1998. The permit specified the collection of small pieces of the coral skeleton for identification purposes.

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The Great Barrier Reef (GBR) has great economic importance as well as immense aesthetic value, contributing an estimated $5.8 billion to the Australian economy, principally through tourism, and commercial and recreational fisheries. Inscription on the World Heritage List recognises the area's global significance and entails regular reporting on its status. Coral reefs are always changing through natural processes such as recruitment, growth, mortality and disturbance by storms. Information about natural variability of populations is essential for informed management.

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Seagrass meadows in Torres Strait are abundant and widespread. Seagrass/algal beds have been rated as the third most valuable ecosystem globally for ecosystem services. Their value is due to their diverse roles within marine coastal ecosystems. Like other plants seagrass harvest the sun’s energy and thus are a source of primary productivity; energy that can be passed through the marine food chain. Seagrass is a major food source for dugong, a marine mammal of high importance culturally and as food throughout the region.
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A plethora of recreational and commercial vessels operate within or transit Torres Strait. They unite the island communities and are a key transport mechanism for all kinds of goods and services. While shipping offers many benefits to the Torres Strait there are also associated risks, especially in event of an accident. These include threats to water quality, biodiversity and ecosystem health, physical or chemical damage from groundings and the introduction of pests.
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Dugong (Dugong dugon) are air-breathing marine mammals of global conservation significance, that can grow up to three metres, weigh up to 400kg and live for at least 70 years. Females reach sexual maturity at six years, and produce a calf only once every 2.5-5 years thereafter. Gestation period is 14 months, but calves suckle milk from their mothers for 18 months after birth. Dugongs’ main food source is seagrass, but they also eat invertebrates such as worms, sea squirts, and shellfish.
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The Torres Strait marine environment contains a relatively shallow (<20m) and highly productive stretch of seawater between the tip of Queensland and Papua New Guinea. It straddles the juncture of the Indian Ocean (Arafura sea) with the Pacific Ocean (Coral Sea), resulting in complex patterns of influence from the two ocean systems, including complicated tides and currents, and high biodiversity. Torres Strait contains over 100 islands, and a diversity of marine habitats including coral reefs, seagrass meadows, and rich benthic garden communities.

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As part of Project 2.3 broadscale surveys and biodiversity assessments were conducted in the central island group and eastern island group within the Torres Strait region. Broadscale surveys were conducted by manta tow in February 2013 at Aureed Island Reef, Aukane Island Reef, Kabbikane Island Reef, Masig Island Reef, Mer Island Reef and Waier and Dauar Island Reef.
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Remote sensing is now recognised as a suitable and cost-effective technique for describing and quantifying aspects of coastal water quality of the Great Barrier Reef (GBR). As a component of Paddock to Reef (link) reporting, water quality estimates retrieved from the MODIS Aqua satellite time series are compared to regionally-specific environmental values and objectives set in 2009 for each of five water bodies identified in the Great Barrier Reef World Heritage Area (GBRWHA).
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Coral reefs in the coastal and inshore zones of the Great Barrier Reef (GBR) are highly valued for recreation and local tourism, but their proximity to land exposes these reefs to land runoff carrying excess amounts of fine sediments and nutrients from developed catchments. The land management initiatives under the Australian and Queensland Government's Reef Water Quality Protection Plan 2013 (Reef Plan) are key tools to improve the water quality entering the GBR and will, in the long-term, improve the environmental conditions for inshore coral reefs. Long-term monitoring of 32 inshore reefs (Figure 1) is part of the Reef Plan and is fundamental to determine the condition of inshore coral reefs and long-term trends related to Reef Plan’s actions on the catchment.

The condition of coral communities on inshore reefs of the GBR has been in a state of decline in recent years. The ninth MMP inshore coral reef survey completed in 2013 demonstrated the halting and reversal of these declines in all regions with the exception of the Fitzroy Region (Figure 2). Observed declines in coral community composition can be attributed to exposure to extreme weather events, including tropical cyclones and flooding in combination with responses to chronic environmental stress. The return to more moderate levels of runoff in 2013 and a lack of cyclone damage has allowed coral communities to begin to recover. Severe flooding in the Fitzroy Region again in 2013 has ensured the continued very poor condition of corals in that region.

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Seagrass are considered coastal canaries or coastal sentinels that can be monitored to detect human influences to coastal ecosystems. The inshore seagrass monitoring program was designed to detect improvements in water quality, resulting from changes in land management implemented through Reef Rescue. Data collection commenced in 1999 as part of the Seagrass-Watch program and in 2005 it was expanded and integrated as part of the Reef Rescue Marine Monitoring Program
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TRaCK (Tropical Rivers and Coastal Knowledge) is a research hub which has drawn together more than 70 of Australia's leading social, cultural, environmental and economic researchers. Our research focuses on the tropical north of Australia from Cape York to Broome.

The TRaCK Digital Atlas has been developed to provide a durable and centralised metadata repository for all of TRaCK’s significant intellectual output. All the mapping layers from the TRaCK Digital Atlas are now available in the e-Atlas mapping system.

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The transport of pesticides from land-based applications to the coastal waters of Queensland is considered a potential risk to the health and heritage values of the Great Barrier Reef ecosystem. At sites near the Queensland coast pesticides and herbicides from agricultural sources have been detected throughout the year. The aim of this component of the MMP is to assess trends in the concentrations of specific herbicides and pesticides, primarily through routine monitoring at sites within 20km of the coast.
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As part of its commitment under Theme 5 of the MTSRF, the Reef and Rainforest Research Centre publishes, or makes available, outputs (e.g. final technical or scientific reports, synthesis reports) from MTSRF-funded research projects nested within Research Themes 1-4.

This report provides an overview of the key findings of research conducted through the Marine and Tropical Sciences Research Facility (MTSRF) designed to improve our understanding of the linkages between catchment and reef processes, and how the quality of water from paddock, sub-catchment, catchment and marine systems can directly and indirectly influence the ecological functioning of the Great Barrier Reef (GBR). The research aimed to inform and facilitate management action and remediation to reduce, restore and increase resilience of the inshore GBR ecosystems. The research findings are also applicable elsewhere, particularly in tropical ecosystems, but many outcomes can be translated for broader application in catchment and marine ecosystem management.

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