is one piece episode 552 filler?

Jinbe and Shirahoshi are on their way to the plaza and run into "Neptune" and Shirahoshi believes it to be her father and has Megalo rush over there despite Jinbe's protest and it reveals it to be a balloon and captures Jinbe, Shirahoshi and Megalo. At the plaza, the royal family of Fukaboshi, Manboshi, Ryuboshi, and Neptune are all tied up and defeated by the officers of the New Fish-Man Pirates while the citizens are shocked they were defeated.

The New Fish-Man pirates all chant for their deaths. However, Hody Jones refuses to admit victory until he receives news that Shirahoshi is dead.