John K. Keesing
YOU?
Author Swipe
View article: Effectiveness of a deep water fully protected marine reserve five years after establishment
Effectiveness of a deep water fully protected marine reserve five years after establishment Open
Mesophotic coral reef habitats and their associated fish assemblages are underrepresented in marine protected areas world-wide. The effectiveness of a mesophotic, fully-protected marine sanctuary in the Ningaloo Coast World Heritage Area w…
View article: Diel movement patterns and abundance of the sea urchin Tripneustes gratilla with comparisons to Echinometra mathaei and their associated ecology at Ningaloo Reef, north-western Australia
Diel movement patterns and abundance of the sea urchin Tripneustes gratilla with comparisons to Echinometra mathaei and their associated ecology at Ningaloo Reef, north-western Australia Open
Sea urchin herbivory can profoundly modify the benthic habitat and community assemblage of coral reefs making their abundance and movement patterns key features to understanding the role they play in regulating community structure. This st…
View article: Benthic Observation Survey System ( <scp>BOSS</scp> ) for surveys of marine benthic habitats
Benthic Observation Survey System ( <span>BOSS</span> ) for surveys of marine benthic habitats Open
Most platforms for collecting images to characterise marine benthic habitats involve a downward or forward‐facing field of view that is relatively constrained (~70°), covering a relatively small area of benthos (downward ~1 m 2 , forward ~…
View article: Design and Validation of an Open–Close Device for Integrated Environmental <scp>DNA</scp> Sampling Detects A Depth Gradient in Indian Ocean Deep‐Sea Fish Assemblages
Design and Validation of an Open–Close Device for Integrated Environmental <span>DNA</span> Sampling Detects A Depth Gradient in Indian Ocean Deep‐Sea Fish Assemblages Open
Advances in methods for collecting environmental DNA (eDNA) are revolutionizing biomonitoring capabilities. The goal of this study was to leverage existing survey technology to design and test an eDNA sampler that captures an integrated eD…
View article: Reproductive seasonality of Sea Urchin <i>Centrostephanus tenuispinus</i> on high latitude coral and macroalgal reefs in the south-eastern Indian Ocean
Reproductive seasonality of Sea Urchin <i>Centrostephanus tenuispinus</i> on high latitude coral and macroalgal reefs in the south-eastern Indian Ocean Open
Sea urchins can have considerable ecological impacts on benthic habitats through grazing and bioerosion and many are exploited as fisheries resources. Of the abundant temperate sea urchins, Centrostephanus tenuispinus is among the least st…
View article: Status of coral, giant clam and sea cucumber communities including CITES listed species on a remote Australian coral reef atoll and the potential impact of illegal fishing
Status of coral, giant clam and sea cucumber communities including CITES listed species on a remote Australian coral reef atoll and the potential impact of illegal fishing Open
Following a recent dramatic increase in illegal fishing by Indonesian fishing vessels in Australian waters in 2022, we conducted an extensive survey of coral reef communities covering 33,000 m2 at Mermaid Reef Marine Park in the Rowley Sho…
View article: Seasonal deoxygenation in a shallow coastal embayment: The role of stratification and implications for water-quality monitoring.
Seasonal deoxygenation in a shallow coastal embayment: The role of stratification and implications for water-quality monitoring. Open
High frequency measurements at the seabed in a shallow semi-enclosed embayment of the Indian Ocean reveal deoxygenation of the bottom water at a rate of 40 mmol O2 m−3 d−1 when seasonal density stratification occurs. The vertical profile o…
View article: Feeding biology of crown-of-thorns seastars across sites differing in Acropora availability
Feeding biology of crown-of-thorns seastars across sites differing in Acropora availability Open
Crown-of-thorns seastars (COTS, Acanthaster spp.) are a major contributor to coral mortality across the Indo-Pacific and can cause extensive reef degradation. The diet preferences of COTS can influence coral community structure by predatio…
View article: Sharks checking in to the sponge hotel: First internal use of sponges of the genus <i>Agelas</i> and family <scp>Irciniidae</scp> by banded sand catsharks <i>Atelomycterus fasciatus</i>
Sharks checking in to the sponge hotel: First internal use of sponges of the genus <i>Agelas</i> and family <span>Irciniidae</span> by banded sand catsharks <i>Atelomycterus fasciatus</i> Open
Trawl surveys within and surrounding two northwestern Australian marine parks revealed banded sand catsharks Atelomycterus fasciatus (family Atelomycteridae) taking refuge within large sponges of the family Irciniidae (Demospongiae: Dictyo…
View article: Production and accumulation of reef framework by calcifying corals and macroalgae on a remote Indian Ocean cay
Production and accumulation of reef framework by calcifying corals and macroalgae on a remote Indian Ocean cay Open
Coral reefs face increasing pressures in response to unprecedented rates of environmental change at present. The coral reef physical framework is formed through the production of calcium carbonate (CaCO3) and maintained by marine organisms…
View article: The importance of blue carbon as a food source to oysters (Saccostrea cucullata) inside a tropical pristine Australian estuary
The importance of blue carbon as a food source to oysters (Saccostrea cucullata) inside a tropical pristine Australian estuary Open
This study investigated the importance of blue carbon (carbon captured from the atmosphere by algae, mangrove and seagrass leaves) as a component of particulate organic matter (POM) along the pristine King George River (Kimberley region, A…
View article: Responses of intertidal invertebrates to rising sea surface temperatures in the southeastern Indian Ocean
Responses of intertidal invertebrates to rising sea surface temperatures in the southeastern Indian Ocean Open
Introduction The west coast of Western Australia (WA) is a global hotspot for increasing sea surface temperatures and marine heatwaves. Methods We used visual survey transects to compare mollusc and echinoderm populations on three coastal …
View article: The short spined crown-of-thorns starfish Acanthaster brevispinus is a corallivore too
The short spined crown-of-thorns starfish Acanthaster brevispinus is a corallivore too Open
The short spined crown-of-thorns starfish Acanthaster brevispinus inhabits deeper water soft bottom habitats, in contrast to the more infamous Indo-Pacific Acanthaster species complex of which population outbreaks have been responsible for…
View article: Annual and decadal surveys of molluscs on intertidal platform reefs in a warming marine environment in the southeastern Indian Ocean provide a baseline for monitoring for future environmental changes
Annual and decadal surveys of molluscs on intertidal platform reefs in a warming marine environment in the southeastern Indian Ocean provide a baseline for monitoring for future environmental changes Open
Few data sets are available to evaluate short- and long-term perturbations and impacts of increasing anthropogenic stresses and a warming marine environment in coastal regions near cities. The Perth, Western Australia shoreline has extensi…
View article: Catch composition and measurement records from trawling, RV Investigator voyage IN2017_V05, North West Shelf, Australia (2017)
Catch composition and measurement records from trawling, RV Investigator voyage IN2017_V05, North West Shelf, Australia (2017) Open
Survey sampling occurred aboard the RV Investigator between 12 October and 6 November 2017 between 30 and 125 km offshore between Port Hedland and the Montebello Islands on the Pilbara section of the North West Shelf, Western Australia, in…
View article: Growth, biomass and productivity of the seagrass Thalassia hemprichii at Ashmore Reef, Australia
Growth, biomass and productivity of the seagrass Thalassia hemprichii at Ashmore Reef, Australia Open
Ashmore Reef, located approximately 630 km north of Broome, Australia, is notable for its contribution to overall seagrass cover in the Timor Province bioregion, providing valuable ecosystem services including critical habitat for feeding …
View article: Recreational Fishing Impacts in an Offshore and Deep-Water Marine Park: Examining Patterns in Fished Species Using Hybrid Frequentist Model Selection and Bayesian Inference
Recreational Fishing Impacts in an Offshore and Deep-Water Marine Park: Examining Patterns in Fished Species Using Hybrid Frequentist Model Selection and Bayesian Inference Open
No-take marine reserves are often located in remote locations far away from human activity, limiting perceived impact on extractive users but also reducing their use for investigating impacts of fishing. This study aimed to establish a ben…
View article: Comment on egusphere-2022-467
Comment on egusphere-2022-467 Open
Coral reefs face increasing pressures in response to unprecedented rates of environmental change at present. The coral reef physical framework is formed through the production of calcium carbonate (CaCO3) and maintained by marine organisms…
View article: The Application of an Artificial Neural Network to Quantify Anthropogenic and Climatic Drivers in Coastal Phytoplankton Shift
The Application of an Artificial Neural Network to Quantify Anthropogenic and Climatic Drivers in Coastal Phytoplankton Shift Open
The overlapping effect of anthropogenic activities and climate change are major drivers for a shift in coastal marine phytoplankton biomass. Linear regression analyses are not sufficient to detect the nonlinear relationship between complex…
View article: Production and accumulation of reef framework by calcifying corals and macroalgae on a remote Indian Ocean Cay
Production and accumulation of reef framework by calcifying corals and macroalgae on a remote Indian Ocean Cay Open
Coral reefs face increasing pressures in response to unprecedented rates of environmental change at present. The coral reef physical framework is formed through the production of calcium carbonate (CaCO3) and maintained by marine organisms…
View article: Wildfires enhance phytoplankton production in tropical oceans
Wildfires enhance phytoplankton production in tropical oceans Open
Wildfire magnitude and frequency have greatly escalated on a global scale. Wildfire products rich in biogenic elements can enter the ocean through atmospheric and river inputs, but their contribution to marine phytoplankton production is p…
View article: Ashmore Reef Marine Park Environmental Assessment 2019 - marine fauna survey
Ashmore Reef Marine Park Environmental Assessment 2019 - marine fauna survey Open
In early 2019 Parks Australia commissioned CSIRO to undertake a survey of selected marine and terrestrial environmental values at Ashmore Reef Marine Park. Specific foci for the marine component of the survey were to assess the abundance o…
View article: Role of winds and tides in timing of beach strandings, occurrence, and significance of swarms of the jellyfish Crambione mastigophora Mass 1903 (Scyphozoa: Rhizostomeae: Catostylidae) in north-western Australia
Role of winds and tides in timing of beach strandings, occurrence, and significance of swarms of the jellyfish Crambione mastigophora Mass 1903 (Scyphozoa: Rhizostomeae: Catostylidae) in north-western Australia Open
Very large swarms of the red jellyfish Crambione mastigophora in north-western Australia disrupt swimming on tourist beaches causing economic impacts. In October 2012, jellyfish stranding on Cable Beach (density 2.20 ± 0.43 ind. m-2) was e…
View article: Species assemblages, biomass and regional habitat characterisation across the offshore Kimberley region, Australia (2015)
Species assemblages, biomass and regional habitat characterisation across the offshore Kimberley region, Australia (2015) Open
Tow video and epibenthic sled collections were matched to a wide set of environmental data in the Kimberley region and subsequently identified as nine habitat/species assemblages that provided broad spatial characterisation of the region. …
View article: Knowledge Gaps in the Biology, Ecology, and Management of the Pacific Crown-of-Thorns Sea Star<i>Acanthaster</i>sp. on Australia’s Great Barrier Reef
Knowledge Gaps in the Biology, Ecology, and Management of the Pacific Crown-of-Thorns Sea Star<i>Acanthaster</i>sp. on Australia’s Great Barrier Reef Open
Crown-of-thorns sea stars (Acanthaster sp.) are among the most studied coral reef organisms, owing to their propensity to undergo major population irruptions, which contribute to significant coral loss and reef degradation throughout the I…
View article: A solution for restoration of critical wetlands and waterbird habitats in coastal deltaic systems
A solution for restoration of critical wetlands and waterbird habitats in coastal deltaic systems Open
Loss of coastal wetland habitats has been directly linked to a decline in waterbird populations including migratory species, leading to calls to reverse this trend in part by restoring these habitats. However, distinct "sediment scarcity" …