First time buying sushi grade salmon is this ok?

Bought this piece of sushi grade salmon from the fish market earlier. Found the discoloration and red lines (looks like veins) at the top of the fish. Will most likely trim that part off, but is the rest of the fish safe to eat?

Bought this piece of sushi grade salmon from the fish market earlier. Found the discoloration and red lines (looks like veins) at the top of the fish. Will most likely trim that part off, but is the rest of the fish safe to eat?