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Killer whale breaches in the waters off Bremer Bay. Photo courtesy Naturaliste Charters.
Why do more than 100 gather off Western Australia every year?
A Flinders University researcher has finally fathomed why large numbers of killer whales gather at a single main location off the West Australian southern coastline every summer.
Physical oceanographer Associate Professor Jochen Kampf.
In a new paper published in Deep Sea Research, physical oceanographer Associate Professor Jochen Kampf describes the conditions which have produced this ecological natural wonder of orcas migrating to the continental slope near Bremer Bay in the western Great Australian Bight from late austral spring to early autumn (January-April).
Credit: photo courtesy Naturaliste Charters, WA
A Flinders University researcher has finally fathomed why large numbers of killer whales gather at a single main location off the Western Australian southern coastline every summer.
In a new paper published in Deep Sea Research, physical oceanographer Associate Professor Jochen Kampf describes the conditions which have produced this ecological natural wonder of orcas migrating to the continental slope near Bremer Bay in the western Great Australian Bight from late austral spring to early autumn (January-April). The aggregation is connected to the local marine food web that follows from the upwelling of benthic particulate organic matter (POM) in a confined region near the seafloor plateau near the head of the Hood Canyon, says Associate Professor Kampf, from the Flinders University College of Science and Engineering.
Absorbent and yellow and … mobile? Sea sponges on the move in Arctic Ocean
A new study suggests that sea sponges are moving across the seafloor of the Arctic Ocean, which challenges the idea that these creatures are primarily immobile.
Previous research has shown that sponges can make limited movements in a laboratory setting, but this is the first time sea sponge trails have been observed in the ocean and attributed to sponge movement.
The researchers hypothesize that the sponges are moving to find food or disperse juveniles, although further research is needed before conclusions can be drawn.
Sea sponges don’t move. At least, that’s what a lot of people used to think about these aquatic invertebrates. But a new study has upended this assumption, and pushed and prodded scientific thought into a new direction.
If you’re here for bitcoin advice on the Kraken exchange, you’re come to the wrong place … but stay anyway because this is about something more elusive that the secrets of bitcoin riches – a new study reveals how a group of marine biologists managed to twice capture footage of live Krakens, the giant squids that created the myths of the monsters that ate Norse ships. Before you run out to buy an underwater camera and book a diving trip to Greenland, you may want to find out why it’s so difficult.
“Knowledge of the behaviour, distribution, and abundance of these species is therefore a key component to understanding deep-sea ecosystems.”