is one piece episode 33 filler?

As Luffy, Sanji and Yosaku sail towards Arlong Park with Momoo's help, Zoro, having cleared the base from all other enemies, meet one of Arlong's officers, Hatchan. Believing him to simply be a guest visiting the base, Hatchan offers to give Zoro a ride to Cocoyasi Village.

Zoro departs just before Arlong returns to the base and discovers the damage done to the base. He is informed that the prisoner they have just captured was none other than Pirate Hunter Roronoa Zoro.

Meanwhile, Usopp evades pursuit by angered Arlong Pirates.