I put a few crayfish in last summer, saw only 1 in the dead leaves at ice out.. Put a few more in this July. Have not seen them or caught any in a minnow trap.
My boy saw this very large one in the sandy shallows just ambling around. Now that the edges are raked clean we can see the PK shrimp and big snails (look like ramshorn shells)
This one really is eating something, maybe all the weeds? The bottom is pretty barren this year.
If they are making crayfish babies hopefully the perch are finishing them off and growing steadily!
Underside:
Any idea if the big snails looking like ramshorns are helpful/harmful etc? Nothing in the pond can swallow them so if they decide to over take things I guess I start raking them out by hand...