Does Fizz's Shark Have a Name?

Annie has Tibbers, Ivern has Daisy, Quinn has Valor, and so on but who the hell is this shark? Does it even have a name? What's their relationship? Friends? Lovers? Allies in war? Is it just some random shark that pops up whenever Fizz throws some fish with 'secret sauce' caked on it? Is it even the same shark each time? I. Demand. Answers!