Blue Tang
Acanthurus coeruleus Introduction The Blue Tang is part of the surgeonfish Family and is known by many different names; blue barber, blue doctor, blur tang, yellow barber and yellow doctorfish are a few examples.
Scuba Diving
Decompression Illness/Sickness (DCI/DCS)
What is DCI? The air you breath from your cylinder (as you should remember from your initial dive training!) is about 78% nitrogen. As you dive and the ambient pressure increases, some of that nitrogen is absorbed into your cells (I’m not going into partial pressures here, I’ll save that for another day!). As you [...]
Harp Seal
Pagophilus groenlandicus Introduction Naturally this little silvery coloured seal lives to around 30 to 35 years, but they are commercially hunted for oil and fur. They are usually hunted on their breeding grounds where they are at their largest concentrations which leads to the hunt as being the largest slaughter of marine animals in the [...]
Underwater Art
Creator of the world’s first underwater sculpture park, Jason de Caires Taylor has gained international recognition for his unique work. His sculptures highlight ecological processes whilst exploring the intricate relationships between modern art and the environment. By using sculptures to create artificial reefs, the artist’s interventions promote hope and recovery, and underline our need to [...]
Ze Blue Screen of Death…
And this is why Microsoft hasn’t broken into the Scuba market…thankfully!
Marine Iguana
Amblyrhynchus cristatus Introduction The Marine Iguana is the only lizard in the world that takes to the sea.
Wet, Dry or Semi-Dry?
Water conducts heat away from the body 25 times faster than air – so it is quite easy to see that we are likely to get cold quite quickly if we don’t wear insulation! Wetsuits are usually made of neoprene, which has loads of little bubbles of nitrogen trapped in the material. It is these [...]
Book: The Diving Manual
ISBN-13: 978-0953891924 Review This book is a very good introduction to diving covering all of the basics and introducing you to different aspects of diving so you can go and research the areas that you find interesting. It covers all aspects of the BSAC Ocean Diver diver course, with some extra information thrown in around [...]
Blue Ringed Octopus
Hapalochlaena maculosa/lunulata Introduction There are at least 10 species of this little creature, but there are two that are well known; the lesser blue-ringed octopus (maculosa) and the greater blue-ringed octopus (lunulata).
