[Austin W Hogan]

I did a lot of hydrology during my working days, and taught hydrology at Lyndon State after I retired. Some people say fishing with a hydrologist is like asking a plumber the way to the men's room but I'll omit that story.

I have a little photo set up that allows me to photograph with front or back light, add with changeable back ground. Two pictures of trolling streamers are attached. The yellow filters imitate a long light path through very clear water, and the tan background a typical sediment covered bottom. The first picture simulates what would be seen with sun and sky light behind, against the bottom. The second simulates what would be seen looking up toward sun or sky light.

Best, Austin