Jon E Brodie

Jon E Brodie
James Cook University · ARC Centre of Excellence for Coral Reef Studies

B.Sc (Hons), M.Sc., PhD

About

299
Publications
72,786
Reads
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10,882
Citations
Additional affiliations
September 2016 - present
James Cook University
Position
  • Fellow
July 2014 - present
C2O Consulting
Position
  • Principal Research Scientist and Partner
Description
  • Environmental consulting worldwide and particulalry in Australia
August 2012 - September 2016
James Cook University
Position
  • Researcher

Publications

Publications (299)
Article
Full-text available
Abstract Fibropapillomatosis (FP) is a tumor‐forming disease which affects all species of marine turtle, but predominantly the green turtle (Chelonia mydas). Expression of this disease is thought to be precipitated by poor environmental conditions and often linked to anthropogenically induced environmental changes. Although FP is a globally distrib...
Article
Full-text available
For many years, local communities have expressed concerns that turbid plume waters from the Fly River in Papua New Guinea may potentially deliver mine-derived contaminants to the Torres Strait, an ecologically and culturally unique area north of the Australian mainland. Information on suspended sediment transport and turbidity patterns are needed i...
Article
This study quantified the bioavailable nitrogen contribution from riverine plumes to Great Barrier Reef (GBR) coastal environments. The potential bioavailable nitrogen from two Dry Tropics riverine plumes was considerable [9 - 30% added to the end-of-catchment dissolved inorganic nitrogen (DIN) load]. Particulate inorganic nitrogen conversion to DI...
Article
Many coastal and marine ecosystems around the world are under increasing threat from a range of anthropogenic influences. The management of these threats continues to present ongoing challenges, with many ecosystems increasingly requiring active restoration to support or re-establish the ecosystem's biological, cultural, social and economic values....
Article
Full-text available
Water quality monitoring programs (WQMPs) are crucial for assessment of water quality in river basins where agricultural intensification and development raise concerns in freshwater and marine environments. WQMPs if supported by scientists and local communities, and if based on the knowledge needs of all stakeholders, can provide vital information...
Article
Variation in water quality can directly affect the composition of benthic assemblages on coral reefs. Yet, few studies have directly quantified nutrient and suspended particulate matter (SPM) to examine their potential impacts on benthic community structure, especially around high oceanic islands. We assessed the spatio-temporal variation of nutrie...
Article
Catchment impacts on downstream ecosystems are difficult to quantify, but important for setting management targets. Here we compared 12 years of monitoring data of seagrass area and biomass in Cleveland Bay, northeast Australia, with discharge and associated sediment loads from nearby rivers. Seagrass biomass and area exhibited different trajectori...
Article
We review the literature on the ecology, connectivity, human impacts and management of freshwater and estuarine systems in the Great Barrier Reef catchment (424,000 km²), on the Australian east coast. The catchment has high biodiversity, with substantial endemicity (e.g., lungfish). Freshwater and estuarine ecosystems are closely linked to the land...
Article
Full-text available
Land use in the catchments draining to the Great Barrier Reef lagoon has changed considerably since the introduction of livestock grazing, various crops, mining and urban development. Together these changes have resulted in increased pollutant loads and impaired coastal water quality. This study compiled records to produce annual time-series since...
Article
There is a concern that the Fly River plume from Papua New Guinea (PNG) may be delivering mine-derived polluted mud along the southern PNG coast into the northern Torres Strait, which is the northernmost extent of the Great Barrier Reef. To quantify this threat, the mud transport dynamics along the southern PNG coast were studied using the SLIM mod...
Data
Location Max. depth (m) Min. depth (m) Slope (degrees) Hard coral (%) Soft Coral (%) Macro-algae (%) Turf-algae (%) Coralline algae (%) Dead coral (%) Silt (%)
Data
Table S6. Coral community composition listing the most common species in three communities of Kimbe Bay W. Location (Loc.): Number of survey locations each species was recorded. Abundance (Abn.): Sum of rank abundance scores in the locations where species were recorded. Indicator species for each community are highlighted in blue.
Article
Full-text available
Water quality of the Great Barrier Reef (GBR) is determined by a range of natural and anthropogenic drivers that are resolved in the eReefs coupled hydrodynamic - biogeochemical marine model forced by a process-based catchment model, GBR Dynamic SedNet. Model simulations presented here quantify the impact of anthropogenic catchment loads of sedimen...
Article
Full-text available
The Wet Tropics region of north Queensland contains the highest biological diversity in Australia, has outstanding environmental values, is economically important and located adjacent to the Great Barrier Reef (GBR). Increasing urban development and agricultural intensification in the Wet Tropics has raised serious water quality concerns. To succes...
Technical Report
Full-text available
Catchment activities, such as logging, grazing, agriculture and urbanization,generate elevated sediment loads which impact downstream water quality and coastal ecosystems. Quantifying the complex link between catchment sediment sources and downstream ecosystems is challenging but important for the development of reliable land-based ecologically rel...
Article
Full-text available
Implementing management actions to achieve environmental outcomes requires defining and quantifying ecological targets, but this is a complex challenge, and there are few examples of how to quantitatively set them in complex dynamic marine ecosystems. Here we develop a methodology to devise ‘desired state’ for tropical seagrasses in Cleveland Bay,...
Conference Paper
Catchment degradation causing increased sediment flow is one of the key stressors facing Great Barrier Reef (GBR) habitats. Ecologically relevant targets (ERTs) for sediment and nutrient loads have been previously proposed based on seagrass light requirements, the next step is to connect these to ecological response. The overarching goal of the pre...
Conference Paper
Catchment degradation causing increased sediment flow is one of the key stressors facing Great Barrier Reef (GBR) habitats. Ecologically relevant targets (ERTs) for sediment and nutrient loads have been previously proposed based on seagrass light requirements, the next step is to connect these to ecological response. The overarching goal of the pre...
Conference Paper
Full-text available
Catchment degradation causing increased sediment flow is one of the key stressors facing Great Barrier Reef (GBR) habitats. Ecologically relevant targets (ERTs) for sediment and nutrient loads have been previously proposed based on seagrass light requirements, the next step is to connect these to ecological response. The overarching goal of the pre...
Article
Pesticide residues are found ubiquitously in Queensland east coast and Great Barrier Reef (GBR) waterbodies. The highest concentrations, often above Australian guidelines, are found adjacent to and downstream of areas of intensive cropping, largely sugarcane cultivation and horticulture. Due to the iconic status of the GBR more information on pesti...
Chapter
Full-text available
A combination of qualitative and semi-quantitative assessments was used to estimate the relative risk of water quality constituents to Great Barrier Reef ecosystem health from major sources in the Great Barrier Reef catchments, focusing on agricultural land uses. In this assessment, the risk was defined simply as the area of coral reefs and seagras...
Preprint
Full-text available
In the face of climate change, warming oceans, and repeated mass coral bleaching, coral reef conservation is at a timely crossroads. There is a new urgency to support and strengthen a rich history of conservation partnerships and actions, while also building toward new actions to meet unparalleled global threats. The goal of this white paper is to...
Article
Full-text available
Aboriginal participation in water resources decision making in Australia is similar when compared with Indigenous peoples’ experiences in other common law countries such as the United States and Canada; however, this process has taken different paths. This paper provides a review of the literature detailing current legislative policies and practice...
Article
Studies documenting the effects of land-derived suspended particulate matter (SPM, i.e., particulate organic matter and mineral sediment) on marine ecosystems are typically disconnected from terrestrial studies that determine their origin, transport and fate. This study reviews sources, transport, transformations, fate and effects of SPM along the...
Article
Full-text available
Quantifying the extent of microplastic (<5 mm) contamination in the marine environment is an emerging field of study. Reliable extraction of microplastics from the gastro-intestinal content of marine organisms is crucial to evaluate microplastic contamination in marine fauna. Extraction protocols and variations thereof have been reported, however,...
Article
Full-text available
Water quality outcomes affecting Australia’s Great Barrier Reef (GBR) are governed by multi-level and multi-party decision-making that influences forested and agricultural landscapes. With international concern about the GBR’s declining ecological health, this paper identifies and focuses on implementation failure (primarily at catchment scale) as...
Technical Report
Full-text available
On behalf of the Office of the Great Barrier Reef (OGBR), C2O Consulting coasts climate oceans coordinated a workshop on 15 March 2018 aiming to provide clearer direction for future efforts to support improved understanding and management of bioavailable nutrient sources, pathways and impacts in the Great Barrier Reef (GBR). The outcomes will guide...
Article
Selected sponge morphologies can act as environmental proxies to monitor adverse environmental conditions
Preprint
Full-text available
Increased loads of land-based pollutants are a major threat to coastal-marine ecosystems. Identifying the affected marine areas and the scale of influence on marine ecosystems is critical to assess the ecological impacts of degraded water quality and to inform planning for catchment management and marine conservation. Studies using remotely sensed...
Article
Coral trace element proxies of terrestrial runoff are widely applied to document and quantify historical changes in river discharge, constituent loads and land disturbance. However, some studies show poor replication between trace element records where cores from multiple coral colonies have been analyzed. Conflicting interpretations also exist on...
Article
Full-text available
This is a response to the published Viewpoint by Larcombe and Ridd (2018). We agree with Larcombe and Ridd (2018) that scientific merit goes hand in hand with rigorous quality control. However, we are responding here to several points raised by Larcombe and Ridd (2018) which in our view were misrepresented. We describe the formal and effective scie...
Article
Ocean contamination by plastics is a global issue. Although ingestion of plastic debris by sea turtles has been widely documented, contamination by microplastics (<5mm) is poorly known and likely to be under-reported. We developed a microplastic extraction protocol for examining green turtle (Chelonia mydas) chyme, which is multifarious in nature,...
Chapter
This chapter reviews the management of water quality in the Great Barrier Reef (GBR) over the past 15 years. The GBR is listed as a World Heritage site for its outstanding universal value, meeting all four natural criteria for listing. Yet the status of its iconic species and ecosystems continues to decline due to poor water quality, climate change...
Article
The expanding economical activities have accelerated losses of biodiversity and ecosystem services, which are especially pronounced in Asia. To find solutions to stop these losses, a group of scientists studying both ecological and social sciences has launched an interdisciplinary research network, entitled TSUNAGARI (Trans-System, UNified Approach...
Book
Full-text available
In the face of climate change, warming oceans, and repeated mass coral bleaching, coral reef conservation is at a timely crossroads. There is a new urgency to support and strengthen a rich history of conservation partnerships and actions, while also building toward new actions to meet unparalleled global threats. The goal of this white paper is to...
Article
Full-text available
Research on the coral-eating crown-of-thorns starfish (CoTS) has waxed and waned over the last few decades, mostly in response to population outbreaks at specific locations. This review considers advances in our understanding of the biology and ecology of CoTS based on the resurgence of research interest, which culminated in this current special is...
Article
Full-text available
In the face of climate change, warming oceans, and repeated mass coral bleaching, coral reef conservation is at a timely crossroads. There is a new urgency to support and strengthen a rich history of conservation partnerships and actions, while also building toward new actions to meet unparalleled global threats. The goal of this white paper is to...