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With the right mix of nutrients, phytoplankton grow quickly, creating blooms visible from space. This image, created from MODIS data, shows a phytoplankton bloom off New Zealand.

Iron fertilization won’t work in much of Pacific

Over the past half-million years, the equatorial Pacific Ocean has seen five spikes in the amount of iron-laden dust blown in from the continents....
Photo by Enric Sala/National Geographic A group of hammerhead sharks swims over the sandy seafloor populated with garden eels at Darwin Island. These sharks are known for their ability to make sudden and sharp turns as the unique wide-set placement of their eyes allows them a vertical 360-degree view, which is ideal for stalking their prey.

Galapagos Islands Wolf and Darwin home to largest shark biomass in the world

More sharks live around the Galapagos Darwin and Wolf Islands than anywhere else on the planet
Lion's Mane Jellyfish by Tim Nicholson

Jellyfish stings: heat better than cold

Jellyfish stings are responsible for more deaths than shark attacks each year. Even “mild” stings can hurt for hours or sometimes days and leave lasting scars. According to some estimates, more than 150 million people are stung by jellyfish each year. New research shows that applying hot packs or immersing in hot water is much better for treating jellyfish stings than cold water which was previously widely recommended.
AUV

Underwater Robots Make Independent Decisions

Submarine robots can act independently, finding and following squid.

GPS signal used for sat-navs could improve knowledge of ocean currents

For the first time sea level has been mapped from space with GPS reflections, according to new research published in Geophysical Research Letters by...

Motorboat noise halves reef fish survival rate

Noise from passing motorboats increases stress levels in young coral reef fish and reduces their ability to flee from predators - causing more than twice as many to be killed.
Southern Elephant Seal (Mirounga leonina) by David Cook

Tagging Seals Improves Ocean Weather Forecasts

Elephant seals improve weather forecasts by up to 6%. Real time data from tagged animals being used by UK's Met Office.
Cuttlefish

Stealthy cuttlefish use electric cloaking

Cuttlefish are renown for their tremendous camouflage capabilities - changing the colour and texture of their skin to match their surroundings. They have another weapon in their hide and seek armoury though - electric cloaking.
Orbicella faveolata coral by Verena Schoepf

Fat helps corals cope with global warming

Study reveals that corals which store fat are more able to survive bleaching events. When the water in which they live gets too warm, corals...

Which reef life communities are most vulnerable to global warming?

A 100 years from now, all the species in many marine communities will be lost and replaced by new species able to tolerate warmer...