We used to fish this lake when I was a kid (translation--back in the 80's) and I remember catching a bunch of panfish under a bobber and nightcrawler. All of them were under 6 inches. Sometimes we used to catch them, take them home with us in a 5 gallon bucket, and release them into the Fanno Creek Pond at Greenway Park. (don't jump all over me folks, I was a 10 year old kid, and certainly wouldn't do it now)
Man, I forgot about that lake. Brings back memories. I feel old now!
I have fished for carp here. They are very weary and would swim up to my bait and mess with it and move on. Thats why they are so big. You can see them swimming around from up on the hill. Alternatively, I was talking with a guy who lands the huge ones with his fly rod. I didn't ask what he was using.