All these tips here tells you how to tame it... but what they fail to mention is the fact, you have to breed it on land, can’t move the egg and the baby HAVE to STAY IN THE WATER!! Don’t push the baby on land or it WILL EXPLODE!!!! I just watch my baby explode right before my eyes!!! Never have I seen a Dino exposed before!!!
They are skittish but not anywhere near faster than humans. They have low torpor and health, so tranq darts are recommended. Tamed like any carnivore, kibble is Archeopteryx. Can be found anywhere in and around the swamps.
If it’s a low level bola and shoot it with tranq darts simple as that. If it requires over 4-5 darts use a bola, place 4 foundations around it for both sides front and back, then put 1 wall on the side closest to the tame for each foundation. Seems a bit overkill but if they have room to swim you will be playing a lot of cat and mouse