The lake shown above does have turtles(including snappers), but not a large amount. I've seen maybe 5 turtles-in ALL my years going there- (in total, including all species together) so I doubt that the minimal predation would ever drive off the newts. However, you do make a good point in that the larvals are hard to find in the lake itself. You have to go to the streams that "feed" the lake to find the gilled larvs. Even then, they are only in specific parts(quiet, still stretches) of the streams.
the last time I was there we saw a Snapping Turtle about 12" long (carapace) cruising down the middle of a VERY clear stretch heading into the lake itself. The only things it could have been doing would be: nesting up-stream, preying on the various minnows or small Trout, tadpoles, and newt larvals. Lastly, my brother has a daughter that is a herp girl, and she has 2 baby Red-Eared Sliders. He decided that 2 Notos would compliment the enclosure so he got them for her. Needless to say their toxins didn't warn or discourage their demise as both were consumed and both Sliders survived with nothing more than a full belly. I couldn't believe that he would try the mix in the first place, but what can I do? On a flip side I also couldn't believe that the turtles had NO ill-effects! I KNOW that Noto's are considered a more potently toxic newt, which is why it amazed me.
Thanks for the replies, I love to share experiences with other herpers!
-jbherpin-