Marco,

If you go to the link it offers this explanation of how the shot was taken:

"A glass container filled to the rim with ditch water and a big greenish leaf for further colouring in the back of the container. Let the shrimp fly come to rest in the water touching the glass side closest to the lens. Take all the time you need. Shoot your picture at an angle so that the rim of the container becomes the improvised horizon. Use a macrolens and 1/15 exposuretime.

I guess the round glass container worked as a magnifying lens in itself. And I forgot to mention yesterday that there was a large mirror face up ?nder the container - doubling the available light."

Bob,

It's interesting that the he theorizes that a barbless hook does more damage by penetrating too deeply. So does that mean his barbed hooks don't penetrate past the barb?

Bill