Tulpehocken, Berks County, 06/12/2010

[jdaddy]

Greenman:

Maybe it's just me, but when you look past many of the tully's downfalls, it has a certain charm about it. And even though you're fishing for stocked fish, it is still very enjoyable.

Absolutely. And I would like to thank Outsider, Mike K and the crew for having the foresight to provide the basis for the fishery we have today. The fishery itself certainly has it's problems and there is a fair share of grumpy bastards on that stream however even if we look at it as a put and take fishery alone, it is a pretty darn good one. Like Jay said, the holdovers may just be a bonus.

 

[bam]

High water is much better for trout than low water at the same temp. I'm no expert, but I'd say more water = more oxygen = more oxygen moving through the fishes gills in the same amount of time.

My guess is that tribs won't have much effect in low water since it'll warm up quicker.

 

[pcray1231]

High water does mean more oxygen. But cold water also means more oxygen. And the effect of temperature outweighs that of speed.

If you could increase flow rates without increasing the temperature, then yeah, it'd help. But I'm not sure thats the case. You can only put out so much cold water, and the rest is being mixed with warm water. Raising the flow rate means raising the % of warm water, or else running out of cold water quicker.

Besides, long term, you can't increase flow rates. Water coming into the lake = water going out. You could even it out more. Just keep the pool higher after high water periods, and let it go during low water. Of course, that decreases the flood control capability of the dam.

 

[sight_nymph_17109]

This thread is now locked.

 

[bam]

The way I figure it is more turbulent and faster water at the same temp will have the same, if not more oxygen. Because that water would be moving at a higher velocity, more oxygen would pass through a trout's gills in the same period of time. I'm guessing a trout with more oxygen would fare better in warm water with less oxygen.

But yeah, there is only so much cool water to go around.

Now this thread is locked😉

 

[jayL]

I don't think the problem with warm water is oxygen, though. I'm pretty sure it's metabolic. Remember, they're cold blooded.

 

[bam]

Oxygen definately isn't the problem, it IS the temperature. At the same time I'm inclined to believe a trout would do better in turbulent 75degree water than stagnant 75degree water.

 

[jayL]

Given the lack of habitat in the tully, I'm not so sure about that. On most streams, I'd agree. There just aren't many places for them to get out of the current there.

 

[jdaddy]

Ya, without the habitat/holding water the increased flows would likely result in more energy expenditure just to stay static thus reducing efficiency of the trouts body.

 

[feathersnfins]

fished 6/24. Nice Spinner fall. They inspected the fly pretty well today. Bigger fish caught on sunken spinners. Almost every other cast caught fish.