Was any primary or secondary succession seen in the movie finding nemo?

Yes, there was both primary and secondary succession in the movie ‘Finding Nemo’.

Explanation:

‘Finding Nemo’ was the Pixar movie released in 2003 that shows the true depiction of life below ocean.  In the movie, though his all siblings were eaten by barracuda but Nemo managed to escape.  This is the example of primary succession which is the type of succession that happens when a particular area experiences a disturbance that is severe so that no original species survive or remain in the area, either they are eliminated or they migrate.