If you want to catch iLvl 210 Big Fish (The newest ones from Patch 3.3)

660 - 750 Gathering (Some Fisher have even more then that,) Some Big Fish are around 620-640 Gathering yet most of em require 660 Gathering.

Perception? To be honest... going for 530-550 should be fine.

Your Priority for Gearing up, if you do not really have the Gil for iLvl 170 / 195 Gear :

iLv. 150 HQ Main Hand
iLvl 150 HQ Head/Chest/Gloves/Pants/Boots (Belt can be HQ iLvl 140)

ILv. 140 HQ Necklace
iLv. 120 HQ Earring
iLv. 130 HQ Bracelet
iLv. 110 HQ Ring (Left/Right)

You should atleast reach 600 GP (620 is fine, Precision Hook costs 85 GP, so you want to have that amount right back before the Fish bites as example) so meld Materia on your Accessories (Grade IV is fine), since Patience II is costly as hell...

If you do not aim to get the iLv. 195 Gatherer Gear (Which is expensive as hell right now), you can also try to get the iLvl 180 Blue Scrips Gear now and later upgrade them to iLvl 200, though you can't put Materia in them...