IPA: /ɪnˈfɔːnə/
KK: /ɪnˈfɔːnə/
Aquatic animals that live in the ground or bottom of a body of water, particularly in soft areas like the sea floor.
The infauna of the ocean plays a crucial role in the ecosystem by recycling nutrients.
Infauna is formed from "in-" (meaning in or within) and "fauna" (from Latin "fauna", meaning animal life). The term refers to the animal life that exists within the substrate of a particular environment, such as the soil or sediment.
Think of animals that live 'within' ('in-') the ground or sediment, which is what infauna refers to.