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Antarctica: Polar Diving

On our journey north of the polar circle, my fellow adventurers and I were greeted by an astonishing spectacle. Over 20 orca were hunting an animal so rare that few people have seen them in the wild, let alone had the chance to study them. Using immense strength, agility and cunning intelligence, the orca worked as a team to hold the Arnoux’s beaked whale under water to drown it.

Fernando de Noronha

If I were to tell you about a special place where no one locks their doors at night, where crime is virtually nonexistent, where the number of tourists is intentionally restricted to preserve the ecological balance, and where each visitor must pay a daily fee of 15 Euros (approximately US$20) to protect the environment, would you think about Brazil? Probably not!

Why you should never go diving with an idiot

Being swept along on this technical diving thing, has been a long, somewhat twisted, but definitely entertaining journey. If you and I had met when the whole affair started, we could not possibly have envisioned how directly and pervasively, what were then radical activities, like cave diving, trimix diving and rebreather diving, would influence the mainstream dive community.

Taking the SE7EN for a spin

The nascence of recreational rebreathers was just waiting to happen. Spurred on by rapid advances in technical diving, new materials and technology, coupled with cost reductions, the allure of long and quiet dives, with vastly improved non-deco times, had to seep from the technical communities to recreational diving, leading to the design of a new generation of closed circuit rebreathers aimed primarily at recreational divers.

Blue mussels, edulis mytilus, are effective filter feeders

Blue mussel beds can clean fjords and bays

A project conducted by researchers from Denmark's Technical University showed that 18 hectares of blue mussels in Skive Fjord reduced the levels of algae low enough to prevent oxygen depletion.

The main issue with fertilization of coastal waters causing algae bloom stems from the massive amounts of dead algae sinking to the bottom in thick layers. As they rot, they consume and deplete oxygen, choking huge swathes of the seabed, leading to widespread bottom death. This is a big issue along coasts of agricultural areas.

Common Lionfish

Proposed bill to ban lionfish sales in Florida

Tallahassee lawmakers are joining spear-wielding divers in an attempt to control Florida’s ever-increasing lionfish numbers. If passed, the two proposed bills would halt the public’s ability to purchase lionfish for aquariums and raising them for sale would become a level two felony.

All of the details of the bill have not been decided. I’m saying let’s get rid of them. Put an end to lionfish in aquariums.

—Sen. Greg Ever