I tamed this with cooked fish meat-

Don’t bother taming one, mosas are better in just about every way

It's Crusoe, but he went through some stuff and seen some shit, had to murder people... Ended up enjoying killing and turned psycho.

I went down on a baryonyx I found a couple threats like alpha megs and 2 leedsicthys but my baby could handle them I then went down to the deep ocean which was surprisingly empty and I tamed a level 7 plesi and the stats are really good I would really recommend this creature and on more thing is to bring a good crossbow I used an acendant crossbow and it took like 7 tranq arrows

Scuba gear + crossbow is all you need to tame it if you dare. You can swim faster than Plesi with flippers. Make sure it is alone!

They need to change this info, I Found a Level 35, Tranqed It with a regular crossbow, and it died

When you encounter it with two people, get one to put it on a headlock whilst the other guy tickles it to knock it out.

Fly to the north and land in an iceberg near the northeast corner of the map. Put on some scuba with flippers, and dive down. Find plesio and shoot it with tranques. Plesio has a shitty turn radius so it will go in circles around you.

Honestly useless and not worth taming