Hello fish workers..
Has anyone out there explored in detail the biomass and/or bioenergetics
linkage between riverine and marine environments that is provided by
diadromous fish?  Further clarification: There is a substantial base of
historical information we have found that supports a hypothesis that
there formerly were huge migratory populations of fish like American
shad that migrated between rivers of the Atlantic coast and the marine
environment.  The biomass exchange/forage base/ecological implications
of these former (pre-1900) populations seems likely to have been very
significant. Is anyone aware of past or present study of this subject?
Thank you for your interest....

P. Brownell

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