>What types of hydroids are there? I'm assuming one of the types you speak of
>is the freshwater jellyfish.I've read about one exotic species in Michigan
>and I'm wondering if there are any native to this state.
Craspedacusta sowerbii is the only species I know about in NA. Check out:
http://www.iup.edu/~tpeard/jellyfish.htmlx
I have come to the idea that the jellies appear every year, it's just that
there aren't enough to notice most years. I'm keeping an eye on ours at
Bays Mountain Park.
Ranger Bob
culler_at_tricon.net
What do you do when you see an endangered animal eating
an endangered plant?
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