A new study of the World Heritage-listed Ningaloo Marine Park has found that further protection may be needed to shield the reef against the impacts of climate change.
A new study of the World Heritage-listed Ningaloo Marine Park has found that further protection may be needed to shield the reef against the impacts of climate change.
LOOK at the world-renowned stromatolites protruding from saline seas at Hamelin Pool in Shark Bay and you could be forgiven for wondering what all the fuss is about.
LOOK at the world-renowned stromatolites protruding from saline seas at Hamelin Pool in Shark Bay and you could be forgiven for wondering what all the fuss is about.
A James COOK University scientist has discovered why there was an unprecedented dieback of mangroves in the Gulf of Carpentaria in early 2016 - the plants died of thirst.
Detailed imaging of the seafloor used to search for Malaysia Airlines flight MH370 is providing unprecedented insights into the geological development of the Indian Ocean.
Marine scientists have mapped previously unknown foraging grounds and migratory routes of Western Australia's green turtles to support conservation of the iconic threatened species.
Repeat multibeam mapping of two slope-confined canyons on the northwest Australian margin provides new understanding of the processes that are active in shaping these environments. The Cape Range and Cloates canyons initiate on the mid to lower continental slope but are now known to be connected to the shelf via small channels and gullies. Both canyons have areas of steep walls, with evidence of slides, and large depressions on the canyon floors. These canyons were first mapped systematically with multibeam sonar in 2008 and were remapped in 2020 during a biodiversity survey that also collected high-resolution imagery and biological samples. Comparison of seabed features between these two time periods indicates active sliding, minor headwall retreat and continued excavation of deep depressions on the canyon floor. Significantly, intact blades of displaced seagrass imaged at various depths up to 4200 m throughout both canyons indicates that material sourced from the adjacent continental shelf is being transported through these canyon systems. Turbidity currents are actively modifying canyon walls and floor depressions, while also providing a sediment source that has resulted in minor accretion on the canyon floor. Sedimentation likely regulates benthic communities in these canyons, with imagery showing highest densities of sessile invertebrates in habitats protected from sedimentation (e.g. rock overhangs, cliff edges). Since steep canyon habitats are rare within these canyons, and support high benthic abundance, they likely represent biologically significant areas of the Gascoyne Marine Park. Repeat mapping provides an understanding of the dynamics of these canyons and a context for assessing and monitoring the stability of the seabed habitats within this marine reserve.
A new study has used drone technology and cutting-edge analytical methods for the first time to map the intertidal coral reefs of the Rowley Shoals off the Kimberley coast of Western Australia.