Fish living in deep waters on the continental slope around the UK play an important role carrying carbon from the surface to the seafloor. It has been assumed that deep water fishes all depend on particles that fall from the surface for their energy. These bottom-living deep water fishes never come to the surface and […]
Divers monitor reef shark numbers as accurately, and cheaper, than automated tracking tools, a study suggests. Shark populations are thought to be declining globally, but a quick search of the IUCN’s Red List shows that for 67% of shark species the population trend is unknown. It’s difficult to monitor shark numbers due in part to […]
Closing a hole in the heart (a pfo) reduces the risk of decompression sickness by eliminating bubbles in the arteries after a dive
Over 42,000 turtles are legally killed each year, 80% of them endangered green turtles (Chelonia mydas), a study suggests. British scientists investigated which countries allowed turtles to be killed, and how many of each species died, the Diversity and Distributions Journal reported. Ten countries account for more than 90% of the catch, with Papua New […]
But not by astronauts or space tourists. Scientists from the British Antarctic Survey are using satellite images to detect and count southern right whales (Eubalaena australis). In recent years there have been over 420 deaths of these whales in their nursery grounds at Península Valdés in Argentina. (Out of a population last estimated at 2577 […]
What makes the Cuttlefish so good at controlling its colour and blending in with its surroundings? This month scientists at Harvard University and the Woods Hole Marine Biological Laboratory have helped answer that question. It has been long known that the skin of the Cuttlefish contains chromatophores: yellow, red, and brown pigmented sacs that the […]
Shark feeding dives are increasing, yet are controversial. Shark tourism has great economic benefits, and can help shark conservation. What are the drawbacks?
Great white sharks may be among the longest-lived fishes. New study finds the shark can live over three times longer than previously estimated, which may mean it is even more vulnerable than thought.
Sick and dying starfish (sea stars) have appeared in a multitude of locations between Alaska and southern California. “It’s like a zombie wasteland,” says biologist Emily Tucker told Nature. “You’ll see detached arms crawling away from their body.” Called Sea Star Wasting Disease, it can cause the death of an infected starfish in just a […]
The devastating tsunami that struck Japan’s Tohoku region in March 2011 was touched off by a submarine earthquake far more massive than anything geologists had expected in that zone. Now, a team of scientists has published a set of studies in the journal Science that shed light on what caused the dramatic displacement of the […]