What was that method of pumping the fish's stomach? Lavage?

Would that work for a pike?

We all have this curiosity as to what these pike are eating, and we can't find out!

Can we assume they are not eating the crappie?


Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."