Re: On average,how big is the home range of an adult American Lobster?

Well, I don't even know *exactly* what an "American" Lobster is! Does it 
drive a Chevvy and eat burgers? ;-)

This one is a bit outside my area...but I'm sure there is technical 
information out there...do a HUGE journal search, especially Marine and 
Freshwater Research journals. try search terms 
like "yabby", "lobster", "crayfish". Even try "mangrove" and "crab" and 
you might get papers written about the home ranges of mangrove sesarmid 
crabs.

I know of some researchers in Queensland who worked out the home range of 
small mangrove crabs that use mangrove leaves to line burrows under 
mangrove trees. They poured plaster down the burrows and extriated a huge 
plaster model of the tunnels beneath the trees. Very interesting, but 
unfortunately, the closest thing I know of this kind of thing!

Small freshwater yabbies in Australia probably have small home ranges, 
since they live quite close together. Alternatively, large marine crays 
and lobsters sometimes go on huge migrations across the seabed. 

So, I bid you good luck at the library and try to be very specific, as 
well as broadening out as necessary to get some sort of information.