yes
The collective nouns for sharks is a school of sharks, a shoal of sharks, and a shiver of sharks. I like shiver a lot. If there is a specific collective noun for the great white shark, I do not know what it is.
It is unclear how much a concurrent increase in fishing for great white sharks has caused the decline of great white shark populations from the 1970s to the present. No accurate population numbers are available, but the great white shark is now considered endangered. Sharks taken during the long interval between birth and sexual maturity never reproduce, preventing population recovery. The Convention on International Trade in Endangered Species (C.I.T.E.S.) has put the great white shark on its 'Appendix II' list of endangered species.
Shark is a countable noun.
The noun 'great aunt' is a singular, common, concrete, compound noun; a word for a person.
The noun 'White House' is a singular, common, concrete, compound noun; a word for any white house anywhere. The noun 'The White House' is a proper noun, the name of a specific building; the home of the US President.
The noun 'shark' is a singular, common, concrete noun; a word for a thing, a living thing.
The collective noun is a troubling of goldfish.
Yes, unless you are talking about a specific shark. But shark itself is common.
noun
The Latin term meaning a marine shark is pristis (a feminine noun). There is also the term fraudator, a masculine noun meaning a loan shark or similar shady character.
The noun 'kind' is an abstract noun. There is no form for kind that is a concrete noun.