I have a slightly different viewpoint on this subject. I've been bass fishing since the mid 70's. In my lifetime I've seen some lakes go through incrediable transformations. Seems like I'm always saying......."You should have seen this place back in the 70's and 80's .....It was awesome!!! "
I believe that each lake is different where as it's eco system is unique within itself. You can not compare Castaic shall we say to Legg Lake for example IMHO.
At Castaic.....Stripers are at the top of the food chain. At Legg.....LMB are the top dogs. Per square acre Legg gets a tremendous amount pressure where as Castaic does not (from a fishing standpoint) but rather the competition for food is harder for the LMB at Castaic.
Now....If you compare Castaic to Dixion for example you can see that the Stripers have caused the LMB fishery at Castaic to completely change over the last 3 decades. All of this WITHOUT even factoring in the HUMAN element.
I believe the each fishery is unique to itself and that's where proper fishery management comes in. In some lakes there are just too many average size LMB like Castaic for example. Some biologist believe that the smaller LMB have faster metabolisms because their growth rate is faster when they are young. Hence.....The need for food in larger amounts and more often.That's where the selective harvest theory comes in. If you look at the lagoon or any lake for example that gets regular trout stockings when the shad schools are small.....The result is TOADS. That's because the LMB at the lagoon don't have to compete with Stripers for that bass candy.
I could go on and on about how different and Unique each fishery is but the bottom line is that each body of water needs to be watched carefully and the lakes own management needs to work with the DFG and biologist to keep a healthy balance. OOPS.....I just woke up from my dream and realized that our bodies of water that we like to enjoy are NOT managed as fisheries but rather water sources and duck ponds. Seriously..........Doe's anyone REALLY think that the cities and countys care how big the fish we catch are or how many we catch?
I myself am very big on catch and release but not because I believe that I'm helping the balance of a fishery but rather because I have a deep respect for life.