Some fish are impacted more greatly than others when displaced. It's a complex world down there, and bass are remarkably adaptable. But they are more so as a population than as individuals. Given a diverse lake, a given year class gets divvied up across the lake, with different groups of bass figuring out different ways to make a living. Some areas/food sources are better than others. Many (the tournament winners ) end up at those peak sources. Others... find other ways to make a living that... get those fish by; What's known as "false peaks".
Many studies have found some behavioral "clustering" (statistically speaking) around home range size, suggesting that some fish are home-bodies and others are wanderers. Not always, but wandering is often more costly and an indication that the fish are not getting the best deal. One thing that's been found is that T-released fish have a higher likelihood of becoming wanderers. In a really productive lake, there might just be room and board for displaced fish. In others, maybe not. I would suspect that N fish are more apt to fall into the latter category.
A-yup. Although in SM (and apparently, FL LM), females can take a more aggressive role around the bed, at least as long as they are there.
That's as I understand it and, so far, have seen. I think this is bc they tend to move to spawn under promotive conditions, and can get the job done pretty quickly. There is evidence that bass may pair -or at least closely associate with their spawning partner- way early, during winter even. But the movement to actually spawn tends to follow specific conditions. At least this is what I see in my northern small ponds.
I've seen females hanging around longer, but this has been when all the males are already occupied with eggs, or in ponds with few eligible males. One year, in a very small 3acre pond, I saw only 3 males attempt to make beds. At one point, the largest male, with apparently the most attractive site, had a line up of females, including the 3 largest in the pond, lined up outside his bed. The females actually began to fight with each other for access. The largest female took the spot, and the others just had to hang back and... be ornery.