Archive for the ‘Trout Biology’ Category

The Lateral Line

Like hot race cars, fish sport a pin strip down the length of their bodies. It’s the lateral line–lateral meaning “side.” It may be distinctly darker than the side of the fish or it may only be seen as a raised area along the side. The  lateral line consists of a series of interconnected “U” […]

Fish Eyes

In addition to a running discussion of fish ears, I want to talk about fish eyes, too. There are a number of questions that keep coming up relative to fish vision that tell me the pool of misconceptions is still deep, dark, and slow moving. Here’s the much compressed lowdown on fish vision. These items […]

The Acoustic Footprint

Fly fishers have spent an inordinate amount of  time studying the visual acuity of trout. That’s good because it has given us some remarkable data that have helped shape not only our flies but also our angling tactics and the clothing we wear. But, in the process, we have neglected the acoustic acuity of fish. […]

Under Water Oz

My friend, Ozzie Ozefovich, has been shooting underwater footage of trout for years, and has produced a couple of revealing DVD’s on the life and times of trout. His latest DVD will be released later this month. Entitled “Trout Vision and Refraction,’ it is an excellent look at these phenomena. The underwater shots through the […]

John and 33 x 20

My great friend John Beth was at it again. While the rest of us ate turkey and stuffing, John was busy stuffing a big streamer down the throat of a 33 x 20 female brown (20 x 20 x 33/750 = 17.5 lbs). That’s quite a collect of big browns for Johnny Boy this fall. […]

Solo Brown

I got up at 4 am and made a run at the Shegboygan. About a dozen casts after I got on the water, I hooked a nice steelhead that was on long enough to make me think I was going to land it. Then off. It looked in the upper 20’s in length and in […]

Weight of Fish

Dan Knox wrote to ask about the measurements of the browns that I posted. Sorry I didn’t make that clear Dan. The first measurement is the length in inches, the second is the girth in inches measured just in front of the dorsal fin. Rather than suspend these big fish by their jaws and chance […]