Shane sent me this. I think it's very helpful for what you're seeing-
I was reading some of the posts on your forum and you may want to include some information about phytoplankton. That's often what gives the water the green or brown appearance and it responds to nutrients just like the algae. Spring is the time for both to grow at their best, so I imagine different parts of the lake have different nutrient loads, which would cause the differences in water clarity (amounts of phytoplankton) and the differing levels of algae (clearer water = more algae, dirtier water = less algae); due to photosynthesis and the depths at which it can occur based on the clarity of the water.
Just some thoughts. Reservoirs are complex systems. The fish are going to move up and spawn regardless of the algae, phytoplankton levels, etc. It may just affect how deep they spawn. It seems like it warms early every year, then cools down, then warms back up. I'm a believer that photoperiodism (daylight length) has just as much of an effect on fish spawning as water temperature, and in some cases like Taneycomo, probably more. It's still early, I bet fishing picks up and stays steady in the next couple weeks. Hopefully we can take advantage of it when it does!