On bubble, facing river checkraise

[TredWel]

Party $11, first hand of the bubble. SB has been completing a lot of hands up to this point, and playing fairly straightforwardly.

First question: Is the river bet correct? And what should I do when the SB minraises?

Seat 1: BTN ( $2590 )
Seat 6: SB ( $2190 )
Seat 7: HERO(BB) ( $705 )
Seat 9: CO ( $2515 )
Level:6
Blinds(100/200)

** Dealing down cards **
Dealt to HERO [ Jc 8s ]
CO folds.
BTN folds.
SB calls [100].
HERO checks.

** Dealing Flop ** [ Qc, 5d, Qs ]
SB checks.
HERO checks.

** Dealing Turn ** [ 9c ]
SB checks.
HERO checks.

** Dealing River ** [ 8d ]
SB checks.
HERO bets [200].
SB raises [400]...