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Stefan Backhus stated:
>Try wearing a backup mask around your neck. Most FFM divers I know wear
>their's backwards so that the strap is at the front of their necks. 
>You'll find that, with a little practice, you'll be able to make a
>regulator switch and slide the mask up relatively easily.

Certainly is an option but prefer not to have the hassle.  When a FFM is 
warrented we use surface supplied gear (Heliox-18s and Superlite-17s).

>BTW, I'm curious about what kind of research you guys are doing down
>there in the waters of the Antarctic.

This season there are 5 dive projects:  
1. Metabolic Physiology During Embryonic and Larval Develpoment of 
Antarctic Echinoderms [sea star study].
2. Chemical Ecology of Shallow Water Antarctic Marine Invertebrates 
[bioactive compounds from numerous benthic organisms].
3. Physiology and Energies of the Aptendytes [emperor penguins]. 
4. Long Term Ecological Research- Lake Pelagic and Benthic Productivity 
[part of 18 LTER sites around the globe].
5. Entry of Sewage-Derived Organic Matter into the Benthic Food Web and 
Anthropogenic Impacts at McMurdo Station [pollution study of local 
benthos].
 


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