[titus]

Hello,

Okay I can say this. If someone offers to me the following:

1) all the beautiful women in the world (reproductive)
2) all the toys I can have (fun)
3) all the food I can eat (food/resources)
4) a big house to live in (shelter)

but confines me to live only within the area of the house, I wouldn't be too happy. Reminds me of the movie "Planet of the Apes", where humans were offered everything but confined within bars under the observation of apes.

I believe there is a definite relationship between the points Diomedes listed and swimming behavior. But at the same time, removing those points doesn't necessarily remove the swimming behavior.

I try to think of it this way:
1) model the fish brain/behavior as a finite state machine (just think of it like a computer), which outputs depend on its current state, inputs, and the relationship (model) that governs the inputs, outpts, current state, and next state as:
outputs & next_state = model(current_state, inputs)

2) Given the above relationship, removing the inputs (ie food, reproductive requirements, and predation or risk level) doesn't necessarily change the outputs & next_state (behavior), etc.

Okay enough of this logic. I think communication and dsp is more fun.

Titus