Pod
a school of herring
A large group of herring, or any other species of fish, is called a school.
A school of whales would be the noun in your sentence.A school of whales swam by while we were swimming.We saw a school of whales on the television show.
They eat small fish in schools and zooplankton so they do depending on the species. Fin whales, humpback whales, Bryde's whales and sei whales all eat small fish.
An Army. A group of herring is called an army of herring.
Beluga whales prey is octopus,squid,crabs,snails,sandworms,and fishes like capelin,cod,herring,smealt,and flounder.
Finback whales eat by swimming through schools of fish with their mouth open and ready to swallow. They feed on krill, herring, and cod.
Beluga whales eat octopus, squid, crabs, snails, sandworms, and fish such as capelin, cod, herring, smelt, and flounder.
One hundred whales are called school of Whales.
A school of whales is called just that "a school of whales", but can also be refereed to as a pod or a herd of whales.
a group of Whales is called a Pod.