Where do Jacks Breed..?

[Pistol_P]

Whats everyones thoughts on this topic...?

I know the belief is that once Jacks reach maturity they head out to the reefs to breed and live their lives out on the reefs.

If this is so how on earth do so many tiny juvenile jacks get way way up into brackish sections of our creeks etc...???
I just cannot imagine that fertilised roe would travel such a massive distance and find its way into these creeks which are so high up river...?

Or is it a case of the newly hatched jacks making their own way into these creeks..???

Didley, you are the man for this one..

Pete