wrote in message
hlink.net...

Made one device that regulated, at a variable rate, water through a closed
loop of pipe. In it was a fish (trout) that had to swim slower or faster
dependant on flow rate. The oxygen levels of the water was monitored to
determine how much energy the fish used to keep up with the current. End
result was how much food does a fish require to survive.

Strange stuff these researchers get into.


Without enough oxygen, then matters not it's food supply....

--

SVL