I couldn’t get my catapult shots to count so I used tranq darts it worked ASA btw
Karkinos
The Karkinos is a massive crab-like creature in Ark: Aberration that can grab and smash creatures and players. It can also throw them at great lengths. Using its strong legs, the Karkinos can leap to impressive heights.

Player-written tips for taming, using, and fighting the Karkinos in ARK: Survival Ascended & Evolved.
Up this tip if you think I should make a mod that lets you knock this out with arrows and darts.
This guy has a GYAHT SHOOT HIS GYAHT
So, I don't know how much this will help others, but personally a cart with a cannon on top did wonders for taming this oversized crab. If you line it up right you can do it in one hit. Hope this helps someone!
Bok Bok
Im a Giant Ahh Crab that eats chicken book bok kfc for brekee ,
Ignore all of the other people who are saying you can’t use Tranqs, you only need 500 tranq arrows.
Trust me noobs it works
If you are trying to tame a higher level one (for example 100+) I suggest using the cannon because it only takes one or two shots to knock it out and I haven’t had one die to this yet.
I have used tranq darts before but it was on ASA and it was a mod and I was creative the mods name is Jurassic terror or something like that.
I was floating above water in Crystal isles. I was close enough that if it jumped it could touch me but it didn’t attack me. I think they can only attack in water.
You can stun it with normal bola and you can tame it with a club