Professional surfers have called for culling sharks to reduce the risk of attacks. A shark biologist explains why culling will not work and surfers should accept risk when they enter the water.
Ocean gliders are being used to study the Agulhas Current. They bring enormous benefits.
SOCCO/SAMERC
Marjolaine Krug, Council for Scientific and Industrial Research
The Agulhas Current is important to South Africa for a variety of reasons. Studying how it impacts the coast has been difficult using traditional methods. But gliders are changing that.
Mothers and children handlining for fish in the evening in Kavieng, Papua New Guinea.
Colette Wabnitz
Coastal indigenous peoples consume nearly four times more seafood per capita than the world average and have strong cultural ties to the sea. Global ocean policies should preserve these connections.
Monstrous, or just misunderstood?
National Oceanic and Atmospheric Administration
One of the environmental legacies of the Obama administration is ocean reserves. Two ocean scientists explain why these are a critical but not sufficient piece of conservation.
There is a great opportunity and imperative for Australia and Indonesia to join forces to solve critical challenges facing the ocean and coastal regions.
Lkzz/www.shutterstock.com
The two countries share huge marine resources and opportunities. At the same time both face increasing challenges to their oceans and coastal regions from climate change and over-exploitation.
Microplastics can carry other pollutants.
Oregon State University/Flickr
Up to 236,000 tonnes of microplastic enter our oceans each year.
Whitespotted surgeonfish (Acanthurus guttatus), found in the Indo-Pacific, crop the upper portion of algae while feeding, preventing macroalgae from becoming established on reefs.
Kevin Lino/NOAA
Plant-eating fish control the spread of seaweed and algae on coral reefs. New research explaining why populations of these fish vary from site to site could lead to better reef protection strategies.
Ship strikes can be deadly, as shown by this blue whale off the US northwest.
Craig Hayslip/Oregon State Univ./Flickr/Wikimedia Commons
Ships in Australian waters are getting bigger and more numerous all the time. We need a plan to help them avoid crashing into whales and other large sea creatures.
Kelps form Australia’s neglected Great Southern Reef.
John Turnbull
Cool-water kelp forests are being eaten by tropical species moving south on warming waters.
Many seabird species, including the blue petrel (Halobaena caerulea), consume plastic at sea because algae on the plastic produce an odor that resembles their food sources.
J.J. Harrison
Thousands of seabirds die every year from consuming plastic trash in the oceans. But why do they eat plastic? New research shows that it produces odors that help some species find prey.
Maritime security is a problem in the Indian Ocean. Different countries use a variety of means to protect their regions.
Royal Navy Media Archive/Flickr
They ‘engulf living prey, suck out their innards, poison them, harpoon them, make them explode, and steal and reuse body parts’. And we ignore them at our peril.
A massive fish die-off occurred in Redondo Beach, California in 2011 caused by oxygen-starved fish.
seadigs/flickr
Researchers ran computer simulations that take into account environmental variability and geographical setting to investigate how early explorers made it to these tiny, remote islands in the Pacific.
Right whales have been shown to be affected by noise pollution.
FWC Fish and Wildlife Research Institute/Flickr