Killer Whale tries to Steal Fish

These guys are fishing off the coast of Alaska, and they are reeling a fish.
One of them spots a moving shadow beneath the line and says “oh halibut, there’s an halibut,” presuming the predator chasing the fish they hooked was an halibut.
No no no : it was an orca, a huge killer wale !
Now, why this fisherman needs to show his ring ?…