Southern Ocean
Metal fingerprints enhance recycling
The bioaccumulation of bioactive metals in top predators plays a key role in the recycling of nutrients in HNLC zones of the Southern Ocean. Furthermore, the concentration of bioactive metals can be used as a ‘fingerprint’ to identify the appropriate trophic level of a species.
Using seabirds to study squid
How do scientists track fast swimming squid in the remote and vast open waters of the Southern Ocean? Probably not in any way you’d expect. They use squid predators, specifically a seabird—the wandering albatross—to find the squid for them. These albatrosses are outfitted with some very cool technology to bring the researchers information on their squid prey. Find out more in today’s oceanbites.
Oceans absorb more carbon with weaker ocean circulation
A team of researchers investigate why the ocean has been absorbing more carbon from the atmosphere in recent decades, and find ocean circulation could be responsible.
Beyond Florida-bound: Birds tweak their winter travel plans in response to climate change
Seabirds are switching up their annual winter travels in response to climate change…read on to discover how researchers used museum displays, isotopes, and really expensive GPS tags to piece together this seabird story.
Positive real estate outlook for Antarctic krill
An Australian research team predict future sea-ice habitats for Antarctic krill larvae, and are surprised to find more suitable ice habitats in the future, despite shrinking sea-ice cover.
Why the Southern Ocean is getting less salty
The Southern Ocean has been getting less salty for decades, and scientists have finally proved that sea-ice is responsible for the extra fresh water in the ocean.
Ocean circulation keeping it cool in Antarctica
A group of scientists have delved deeper to solve the puzzle of why the ocean around Antarctica has been cooling, while the rest of the ocean is rapidly warming.
Why iron fertilization hasn’t worked
Fertilizing the ocean with iron to help algae store more carbon in the deep sea was once heralded as a solution for global warming. But decades of research has suggested it doesn’t work as advertised. What went wrong? Read on to find out!
12,000 feet under the sea, from space
A pair of scientists have figured out how to track deep ocean currents using gravity measurements from space.
Sailing the Southern Ocean for science
Hear about my adventures living on an icebreaker on the Southern Ocean, deploying ocean robots to understand the chemistry and biology of the Southern Ocean.
Volcanic ash, fertilizer for the ocean?
Volcanic ash may be an important source of the valuable micronutrients iron and manganese to phytoplankton populations in areas with low chlorophyll, such as the Southern Ocean.
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