Various jellyfish and comb jellies (Ctenophores) seem to do well along with
a rich diversity of bacteria with interesting metabolic pathways. I think
some other fishes are doing OK, but they have very different ecological
requirements from sturgeon. All species of sturgeon are long-lived and take
years to mature, which is why their populations are vulnerable to habitat
alterations (in a million words or less...).
--Bruce Stallsmith
Huntsville, AL, US of A
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