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"The continuing high level of infection and the fact that the end of the lockdown is not foreseeable for the time being make a resumption of trade fair operations at the end of April appear increasingly unrealistic", states Wolfram N. Diener, CEO of Messe Düsseldorf.

"We have reassessed the situation with our partners and jointly decided to cancel boot 2021 early. Our priority is the health and planning security of our exhibitors, visitors and service providers. All activities will now be focused on the successful staging of boot 2022."

Zoologist Douglas Bastos from the National Institute of Amazonian Research in Manaus, Brazil, and his team have captured video footage of Volta’s electric eels hunting in groups of more than 100.

In the footage, the eels encircled shoals of tetra fish to form a “prey ball”, which they herded toward shallower waters. Then, two to ten of the eels swam closer to the ball to deliver jolts of electricity. The synchronised charge is so powerful that some of the fish are blasted out of the water. Stunned, they fall back into the water, and are consumed by the eels.

Coral reef fish start their lives as small, transparent larvae. After they hatch, they join a swirling sea of plankton and frequently get dispersed to different reefs due to ocean currents, waves and the wind.

In this study, the scientists did seven years of surveys focussing on the Clark’s anemonefish, measuring how the dispersal of larvae varied over the years and seasonally. They discovered that the larvae dispersal varied immensely on both these timescales.

Australia, 11 January 2021: Entries are now open for the Underwater Tour Awards 2021. We have added two new awards this year to include not just photographers, but also creatives and eco-citizens everywhere.

Guru Awards These awards feature five Categories, a publicly-voted People’s Choice prize, plus the ultimate prize for the top-scoring photographer across all the categories, the Grand Guru prize!

Researchers have known that an animal swimming parallel to a solid surface receive a subsequent boost in performance, thus allowing them to utilise less energy when moving around. 

 

Studies have quantified this into a 25 percent increase in speed and a 45 percent increase in thrust when swimming near a solid surface. 

However, the jellyfish does not swim near the seafloor or seawalls. How does it get named the "world's most efficient swimmer"?

Apparently, it does so by creating a "virtual wall."

Because DCS isn’t the most straightforward diving injury, myths and misconceptions about it tend to arise. DAN is committed to continually educating divers about it, and we’ve decided to clarify a few of the most common misconceptions about it to ensure that all divers are better able to recognize DCS, respond to it and get the treatment they need in time.

While the most exotic of these potentially dangerous organisms are fairly well known, the more mundane sometimes cause uncertainty. Know what’s most likely to cause an injury on your next dive so you can relax and enjoy making bubbles.

In part one of this two-part series we’ll refresh your knowledge of wound care and treating common marine stings; next month we’ll cover injuries that involve scrapes, bites and penetrating wounds.

Interest among researchers has existed for a few decades, but it has increased in recent years as studies by such organizations as Duke University the University of South Florida have yielded intriguing results.