The Magazine for Underwater Professionals

Nov/Dec 2016

ILLUSTRATED GLOSSARY & FROM OUR ARCHIVES

Sustainable Development in our Seas

"Now let me get this straight. You say that dredge is not harming the seabed environment but this sinker is?"

This is the stated mission of the MMO. The trouble is, the MMO has a problem understanding its own mission. So, for example, the MMO appears to be totally blind to bottom dredges such as scallop dredges – which methodically destroy whole acres of the seabed at a time, transforming it into a sustainable desert – while being fanatically concerned about how a sinker may damage any marine life beneath it!

FROM OUR ARCHIVES...

100 years ago
In sunny Mozambique, in August 1916, a seventh attempt was made to salvage the sailing vessel Dorothea Organisen, which was sunk in 1897 near Delagoa Bay (now called Maputo Bay, an inlet of the Indian Ocean on the coast). The vessel was believed to have been carrying a million krugers of gold encased in cement.


Meanwhile, in October 1916 and closer to home, in Chatham Dockyard, poor Stanley Cadman suffocated whilst diving in one of the basins when his air pipe became “choked”.

 

150 years ago
Two Frenchmen, Rouquayrol and Denayrouze, published their ‘Description of the Diving Apparatus and Equipments’ in 1866 for use in the “cleansing of the bottoms of vessels at regular intervals, so as to increase the effect of the steam engine”. The equipment could be used in a self-contained mode or with a surface supply and incorporated an air reservoir and a demand regulator. The equipment enjoyed a brief period of success in France but was eventually superseded by the standard diving dress.

 

 

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