RE: NANFA-- Hogsucker husbandry secret revealed?

Hoover, Jan J ERDC-EL-MS (
Mon, 28 Jun 2004 11:43:41 -0500

>>>Then it starts. They go for the sand. They'll suck in a mouthful (you
see the depression they leave) and none or very little comes out the gill
plates....They're sifting, sorting it in their mouths
and swallowing it!...I wonder if there isn't any info out there about
hogsucker gut contents and

Bill Matthews found that some duskystripe shiners (now cardinal shiners) in
the Ozarks ingested large quantities of sand. He speculated on several
possible explanations.

Although they are selective predators, cardinal shiners are broadly
omnivorous, as are hogsuckers, and it would not surpirse me that the
sand-sifting of both species is a way of obtaining specific high quality
prey (e.g., diatoms).
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