Yes, of course; all living things are consumers, and if the grey shark did not consume, it would die.
Big, Gray Shark
what is a consumer
gray
shark
what is a consumer
Consumer
The Great white Shark is a consumer and is a top carnivore. No animal can prey on it except decomposers when the shark dies.
The shark is a secondary consumer because it eats creatures that eat plants.
a goblin shark is gray grayish pink
gray
you and me
The shark would be a consumer. In fact, it would be considered a tertiary consumer due to being a carnivore that consumes many of the other consumers.