Quick trip to PA
#1 Guest_daveneely_*
Posted 01 December 2008 - 01:30 PM
Here's a couple fun photos...
The abundance of steelhead in many of the tribs to Lake Erie is simply amazing (Nate and Todd, you really missed out). Almost every deeper pool shelters a bunch of overwintering fish, and while they likely do prey on the occasional native small-bodied fish, they probably have much less impact overall than gobies do...
I'm always impressed with sexual dimorphism in salmonids, like the color and kype on this male...
and their absence in this bright female
Back in 1992 and 1993, I spent a lot of time on this spring creek -- mostly floating facedown in a drysuit while trying to watch sculpins spawn (a hard way to learn that most of the spawning activity is at night...). There's three species (Potomac, Blueridge, and "checkered") here, but checkereds are orders of magnitude more abundant than the others, a pattern reversed just a little ways downstream. This sculpin biomass produces some surprisingly large browns, but this is one of the largest and prettiest I've seen come out of here.
There were also a couple of pearl dace crusing around a small pool in the spring creek. I tried for about 30 min to get a decent photo, but my Olympus wanted to focus on the vegetation instead.
I've always had a strange fondness for fallfish, and I particularly like the reflection of this little guy...
but this is what I was after, and it took hiking way upstream and crawling through a couple km of laurel patch to get to the nicest water. I've heard through the grapevine that this watershed has been hit hard by acid rain. While there's still some fish holding on, the acid neutralizing capacity of the watershed is gone, and depressed stream pH during snowmelt events result in low survival of larval trout (sculpins and minnows, which are more sensitive to low pH, have already dropped out of this part of the watershed). Too bad we can't get some of the abundant limestone from the valley bottoms way up here...
#8 Guest_harryknaub_*
Posted 03 December 2008 - 10:50 PM
Which stream were you referring to about the acid rain impact. This my neck of the woods, so I'm just kinda curious.but this is what I was after, and it took hiking way upstream and crawling through a couple km of laurel patch to get to the nicest water. I've heard through the grapevine that this watershed has been hit hard by acid rain. While there's still some fish holding on, the acid neutralizing capacity of the watershed is gone, and depressed stream pH during snowmelt events result in low survival of larval trout (sculpins and minnows, which are more sensitive to low pH, have already dropped out of this part of the watershed). Too bad we can't get some of the abundant limestone from the valley bottoms way up here...
Harry Knaub
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