Re: NANFA-- Freshwater/brackish

Bruce Stallsmith (
Fri, 18 Oct 2002 08:29:46 -0400

--Bruce Stallsmith
Huntsville, AL, US of A

The difference can be very small; for instance, many freshwater fishes like
sunfish and shiners can't tolerate more than 2 ppt salinity (or 1.002
specific gravity, approximately). But different people will tell you
different cutoffs, depending on what processes or organisms you're dealing

--Bruce Stallsmith
Huntsville, AL, US of A

>Subject: NANFA-- Freshwater/brackish
>Date: Fri, 18 Oct 2002 05:08:57 EDT
>Would anyone like to give a cut off point that marks the official
>between freshwater and brackish water in specific gravity?
/"Unless stated otherwise, comments made on this list do not necessarily
/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
/ This is the discussion list of the North American Native Fishes Association
/ To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
/ For a digest version, send the command to
/ instead.
/ For more information about NANFA, visit our web page,