Monkfish more xp than Sharks?

[Titus]

Why is it that monkfish give more fish xp than sharks?
Full angler set also.

Monkfish=3,105 with xp boost.

Shark=2,829 with xp boost.

[D E A G]

Monkfish on OSRS are 120 XP per catch while Sharks are 110 XP

[Titus]

thank you, I never knew that!