Question

How will the balance of the aquatic ecosystem be affected if all the
tertiary consumers are dead?

Answer 1

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If a tertiary consumer were removed, for example, wolves, the primary consumers overpopulate. This is seen in places where wolves once roamed and no longer do. Deer are overpopulating out of control and they are exceeding the carrying capacity for their range.

Answer 2

Answer: A tertiary consumer is an animal that obtains its nutrition by eating primary consumers and secondary consumers. Usually, tertiary consumers are carnivorous predators, although they may also be omnivores, which are animals that feed on both meat and plant m material if. If these will be dead the there will be an imbalance in the aquatic ecosystem as there would be -

Species in the highest trophic levels play a very important role in ecosystems. They control populations or alter the behavior of animals in lower trophic levels. Animals in lower trophic levels may be carnivores, herbivores, or omnivores, and when their populations are limited it relieves either predation or grazing pressure on the trophic levels below them. This keeps ecosystem dynamics in balance. For example, if a population of foxes becomes too large it could put pressure on rabbit populations. By predating the foxes, a tertiary consumer, such as a hawk, keeps the populations in check and reduces the number of rabbits that are consumed by the foxes. This is called a trophic cascade.

Explanation:

Tertiary consumers in marine environments include larger fish such as tuna, barracuda and groupers, seals and sea lions, jellyfish, dolphins, moray eels, turtles, sharks and whales—some of which are apex predators, such as the great white or tiger sharks and orca whales. Additionally, many seabirds such as gulls, shearwaters and penguins are tertiary consumers.