EWTN Catholic Q&A
153 fishes in John 21:11
Question from Tony Zupo on 04-15-2013:

What is the symbolism of the 153 fishes in John's gospel?

Answer by Richard Geraghty on 05-30-2013:

Dear Tony,

I don't know. But it sure was a lot of fish caught by the Apostles who had been fishing all night and got nothing. Christ's advice from shore to drop their nets again sure made a difference.

Dr. Geraghty