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Articles on Oceans

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Abnormal hydro-heatwave explained

A number of factors contributed to the marine heatwave that affected ecology off the WA coast in 2011. A team of oceanographers…

Many marine species remain unknown

There are 226,000 described marine species in the world but research suggests more than 450,000 remain unknown. Using knowledge…
Fisheries around the world are depleted, but they can be saved. Isaac Pearlman

It is still possible to make fisheries sustainable

Many fisheries around the world are in bad shape and getting worse. Solving this problem will require innovative monitoring and management tools, but we can provide tremendous benefits if we act now to…
Understanding the stingray’s significance can help us understand opposition to James Price Point gas plans. Joy VanBuhler

Beware the stingray: Indigenous heritage and WA’s gas plans

For overwhelming economic, social, cultural and environmental reasons the LNG precinct proposed for Walmadany (James Price Point) should not be built…In sum, such a project is against the national interest…
The Great Barrier Reef may be huge and long-lived, but without intervention it’s in serious trouble. Landfeldt/Flickr

The decay of the Great Barrier Reef calls for a reckoning

There is a myth about Australia’s Great Barrier Reef, that goes like this: because it is so big, biodiverse, so well-managed and generally bloody awesome, the GBR is immune to climate change and other…
Could waves and ocean currents hold a key to a renewable energy future? Sunova Surfboards

Ocean power making waves in Australia’s clean energy future

CSIRO recently announced that energy from the ocean could supply 11% of Australia’s demand by 2050. That is enough to power a city the size of Melbourne. It is a bold claim, but it’s time for Australia…
We thought we’d set a safe limit on climate change - 450ppm CO2 - but it may be too high for most of the world’s reefs. Paul Toogood

Climate change guardrail too hot for coral reefs?

One of the ambitions of the United Nations Framework Convention on Climate Change (UNFCCC) is galvanising the international community to avoid dangerous interference with Earth’s climate. To do this, it…
Microbial abundances in the sub-seafloor environment are much more variable than thought. giveawayboy

Drastic measures: a revised estimate of Earth’s microbes

A paper released today in the journal PNAS provides a new estimate of microbial abundance, in light of new information, from the sub-seafloor realm (the so-called “deep biosphere”). As such, we now have…
There is no evidence that hunting and killing sharks reduces attacks on humans. US Fish and Wildlife Service

Who’s hunting who? Misguided responses to shark attacks

The most recent fatal encounter between a shark and a surfer off the coast of Western Australia is a tragic loss of human life. It prompted a Western Australian government reaction to “hunt and kill” the…
Scientists have suggested using shade cloth to protect corals from the heat stress that leads to coral bleaching. AAP

Shade cloth over reefs? Scientists call for ‘last resort’ measures

Unconventional tactics, including using shade cloth to protect corals from heat stress, must form part of future ocean management and conservation plans, argues a scientist from the University of Queensland…
Little penguins are among a number of species that are threatened by climate change. AAP/Rick Stevens

Ocean winners and losers revealed in Marine Report Card

Fish are on the move in Australia’s waters. In southern Australia, scientists, commercial and recreational fishers, divers and beach-goers are reporting the presence of new species. The movement of species…
Coral species Acropora monticulosa is becoming more abundant at the Solitary Islands in northern NSW.

On the move: corals migrate south into NSW’s warming waters

The east coast of Australia is a global hotspot for the effects of climate change, especially in the marine realm, where average water temperatures have increased by almost half a degree over the last…
Carbon is channelled deep into the sea through a funnel-like mechanism. tbdevries

Clue to carbon storage in the Southern Ocean

Carbon emissions are drawn deep into the Southern Ocean by plunging currents, scientists have found, challenging the idea that carbon is locked away from the atmosphere by being absorbed across vast areas…
What does it matter how much rain falls on the ocean? For understanding climate, it matters quite a lot. Ines Hegedus-Garcia

Are the world’s wet regions becoming wetter and dry regions becoming drier?

Surprising evidence from the oceans suggests they are responding to warming at a faster rate than we previously thought. These changes are expressed by patterns of freshening and enhanced salinity in the…

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