Known as a ‘red tide’ by day, the microalgae Noctiluca scintillans, known as ‘sea sparkle’ emits a bioluminescent blue glow when disturbed at night. Over the last week, residents of Hobart, Tasmania, have been treated to a light show on the Derwent River, mostly around the South Arm Peninsula, as the dinoflagellate bloom has washed ashore. The bloom can be deadly to fish if it accumulates and gives off ammonia as the microalgae die.
Photographer Tom Rayner’s new book takes you on a journey through the Macquarie Marshes and their revival from years of drought, to brimming wetland oasis.
Avoid dehydration and giardiasis with this UV water purifier.
The discovery of bizarre new groundwater species has brought a $1 billion drilling project to a halt.
Flawed water-trading systems are choking our formerly mighty river systems to death, says Mike Young.
Algal blooms cause serious, even fatal, problems in our waterways, but we know little about what causes them.
Images from NASA’s Space Shuttle are being used to create maps that could help manage river resources and flood events.
A spring flush has flowed from Lake Jindabyne for the first time in 40 years.
Just 40km north of Canberra, Lake George is an ephemeral water body that inspires artists, birdwatchers and historians.