Algae as a Primary Producer
Algae is a plant that contains chlorophyll but lacks true stems, roots, and leaves. It converts water and carbon dioxide into sugar using sunlight. Algae form the basis of energy in a food web by converting light energy from the sun into sugars.
In freshwater, some fish like plecostomus, kuhli loach, otocinclus, and others eat algae directly from rocks and plants.
Omnivorous Behavior in Fish
Zooplankton and small aquatic animals like aquatic worms and insects are menu items for omnivorous fish. Omnivores adapt to eat algae, insects, worms, mollusks, and small organisms. Some even feed on larger prey like crustaceans or other fish. Their ability to adapt contributes to their success.
Role of Algae in Aquatic Ecosystems
Algae, through photosynthesis, provide nutrients for a diverse range of organisms. Producers like algae play a crucial role in sustaining the food web by converting light energy into sugars.
An omnivore is an organism that regularly consumes plants, animals, algae, and fungi. They range in size from tiny insects to large creatures.
Heterotrophs at all trophic levels rely on the chemical energy produced by autotrophs like algae. Some aquatic animals eat algae processed by other creatures. An herbivore feeds on plants and algae. Carnivores and omnivores consume animals and plants.