Question

Abiotic and biotic factors of water necessary for fish life

Answer 1

Like all ecosystems, aquatic ecosystems have five biotic or living factors: producers, consumers, herbivores, carnivores, omnivores, and decomposers. Producers are generally plants and algae, consumers include fish, mammals, reptiles, amphibians, crustacean and insects, while decomposers represent bacteria and fungi, and scavengers like shrimp and crabs.

But some groups, like fish and crustaceans, have member species that exist in different groups of factors. For example: dugongs eat seagrasses, while some species of seal eat penguins and fish, yet both are mammals. While some of these species may seem at odds, like a killer whale and its prey, producer, predator, prey and decomposer populations all play significant roles in regulating the delicate balance of an ecosystem.