Pick them with argy and put them in taming pen they don't attack your pen and put tranq arrows or tranquilizer dart on him and put fish meat or raw prime fish meat only you can get easily raw prime fish meat with 1 min fishing
This dinosaur is a very intricate but interesting dinosaur to get. I did find it near the shore line as it had seen me and wanted to eat me. However I had 5 tranq arrows which you can get at lvl 21. I shot all 5 and he fell to the ground. Very good dinosaur to tame especially in the water. It beats anything in the water even with its stun strike. I recommend using this dino to fight. I have one named Juju. One like equals One love for Juju
⚠️This is what I do and this method may not work for everyone. ⚠️
I take a high-health take (think a turtle or something) that allows weapon use on the mount. Let the Baryonyx attack your tame while you shoot it with tranq arrows/darts. MAKE SURE THIS IS ON LAND! If you are in the water, the Bary WILL knock you off your mount and stun you. They will flee after enough hits but they'll be knocked out after fleeing for a little. Good luck survivors! (I used this method on a lvl. 100 female, I named her Lilypad).