Little fishing related in this beta patch data wise.
Only thing so far is an update to the Electrified Oil recipe now requires 2x Spinefish (was 1x Spinefish). The actual fish is not yet in the game though it does have an icon so presumably will be added at some point.
Also small change to tooltip for 'Rafting' buff;
Rafting: You can raft across (oceanic-removed) water.
Rafting: You can raft across (oceanic-removed) water in Krasarang Wilds.
This relates to the raft at Marista which can be rebuffed any time after the quest, Build Your Own Raft is completed for a 1 hour Rafting buff (first) and also to the Goblin Fishing Raft used in the quests (second). It is just correcting the tooltip to the actual use on beta now where you can use them on the inland water also.
The Marista "Your Raft" buff which is the first still actually only works within Krasarang Wilds even though the tooltip does not mention it like the second. if you cross into a neighbouring zone you lose the buff. Perhaps they will change this or update the buff text.
It doesn't relate to the Anglers Fishing Raft which can be used anywhere and has a different buff.