Where are Crayfish found in Crater Lake?
The figure shows the locations of newts (blue dots) and crayfish (red dots) in Crater Lake. Newts and crayfish rarely inhabit the same locations because the crayfish are aggressive and drive the newts away, or eat them.
This figure shows how deep signal crayfish are found in Crater Lake.
Why is it important to know the depths were crayfish live?
Did You Know?
The depth of Crater Lake was first measured in 1886 with a simple sounding machine that consisted of a crank and a spool of piano wire. Those first measurements showed the lake to be 1,996 feet deep - not far off from the depth of 1,943 feet that was measured with high tech equipment in 2000!