Re: NANFA-- Native Fish Canundrum

Christopher Scharpf (
Sat, 06 Sep 2003 18:11:15 -0400

> Good question. What does "that drainage system" exactly mean though? For
> example, here in Cleveland we have one drainage systems heading into Lake
> Erie, the Cuyahoga. Does the fish need to be fromt the Cuyahoga system? Or
> can it be from the Rocky River (about 10 miles west)? Black River (20 miles
> west)? How about the Maumee (about 100 miles west)? What about Canadian
> stock? To what degree do we want to go to say that it is ok? Is it just
> safe to say from the Great Lakes drainage or should we say the Lake Erie
> drainage? I'd be interested in hearing everyone's thoughts.

Depends on how you use the terms. Technically, the Great Lakes is not a
drainage, but a basin.

basin -- A group of interconnected drainages.

system -- A group of interconnected streams within a drainage.

drainage -- A group of interconnected rivers or systems entering the sea or
a basin.

Chris Scharpf
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