So far I've always submerged the net 100%.
mnfish, not so much of a story but a PITA. I had to drag the hoop portion to a shallow area so I could net out most of the fish, and see what end of the turtles I was grabbing, making sure that none of the others heads were within snapping range. I'll bet it took 45 minutes to empty the net!
I was using it to reduce the stunted BG population in that particular pond, and I removed about 2,000 BG in 5 days. There were a lot of BH removed too.