Category Archives: environment

diatoms

Ocean bacteria “pumped-up” by dying plankton

Scientists have discovered a surprising new short-circuit to the biological pump. They found that sinking particles of stressed and dying phytoplankton release chemicals that have a steroid-like effect on marine bacteria feeding on the particles. The chemicals juice up the bacteria’s metabolism causing them to more rapidly convert organic carbon in the particles back into […]

SENSOR SNIFFS OUT METHANE IN DEEP-SEA VENTS AND COWS

Sensor sniffs out methane in deep-sea vents and cows

Methane is a potent greenhouse gas that traps heat about 20 times more effectively than carbon dioxide. Understanding the sources of methane, and how the gas is formed, could give scientists a better understanding of its role in warming the planet. Now a research team including scientists at the Massachusetts Institute of Technology, the Woods […]

Frog Fish, Great Barrier Reef

Great Barrier Reef: Australia to ban Sediment Dumping on Part of Reef

Australia has declared that it will ban dumping of sediment in the marine park area of the Great Barrier Reef, but not in the entire World Heritage Site. This matters because, according to environmental pressure group Fight for the Reef, in recent years 80% of dumping has been in World Heritage waters just outside the […]

Helmut Jellyfish

Strange marine animals found around the Canary Islands

Marine conservation group Oceana finds amazing array of marine life in Canary Islands expedition, from shallows to down to 1000m. Using ROVs (remotely operated underwater vehicles) as well as scuba divers to shallow depths, they documented large colonies of deep-sea white coral, crystal aggregations of sponges, dense forests of black corals, oceanic puffers, giant foraminifera, carnivorous sponges and sharks, as well as many other biological communities and species in the south of the El Hierro Island.

European eel

Ship noise slows eels and lets predators catch them twice as quickly

Eels are losing the fight to survive when faced with marine noise pollution such as that of passing ships, according to a study published in the journal Global Change Biology. Scientists from the Universities of Exeter and Bristol that found that in the presence of ship noise, European eels (Anguilla anguilla) were 50% less likely […]