The aggregate of actively swimming animals in a body of water ranging from microscopic organisms to whales.Animals that freely occupy the pelagic region of aquatic communities.
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches available in the ecosystem. Three regions exist in a freshwater environment: profundal, pelagic, and benthic. Get more information on each of these regions and how these regions led to the varying niches that freshwater animals eventually occupied...
A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic communities have acquired evolutionary adaptations to better suit this running water environment. Know more about their evolutionary adaptations in this tutorial...