Out of Air with Plenty to Breathe

Take responsibility for opening your own cylinder valve before a dive. If someone else wants to do it for you or touches it to check it is open, politely refuse.

It was a beautiful day in Indonesia’s Banda Sea. Richard rolled back into the warm waters and swam over to join his wife, Florence. After exchanging signals, they descended together, heading for a patch of bright yellow sea fans on the reef wall at 30m, where their guide had promised to show them pygmy seahorses. The guide was already there below, searching for the elusive little creatures.

It appears that the presence of boats has an impact on the social behaviour of humpback whales.

Humpback whales less sociable in presence of boats

After studying humpback whales off Queensland's Peregian Beach, researchers discovered that the whales’ ability to communicate and socialise is adversely affected by the noise and presence of boats.

In some cases, the mammals’ communication range is reduced by a factor of four.

"It appears that groups of humpback whales tend to socialise much less in the presence of vessels—in this study, mostly small fishing boats—compared to when there aren't any present," said Rebecca Dunlop from The University of Queensland's Cetacean Ecology and Acoustics Laboratory.

The anemone fish's survival is at stake, due to climate change.

"Finding Nemo" clownfish won't survive climate change

A recent study by France’s National Centre for Scientific Research (CNRS), Woods Hole Oceanographic Institution (WHOI) and colleagues indicates that the anemonefish does not have the genetic ability to adapt swiftly enough to climate change.

The findings of the study were published in the November 27 issue of the Ecology Letters journal.

The research was conducted in the lagoons of Kimbe Bay, covering more than a decade. This area is a biodiversity hotspot in Papua New Guinea.