May 1, 2019 · Benthic animals live on the sea floor and are typically invertebrates, such as sea anemones, sponges, corals, sea stars, sea urchins, worms, mussels, crabs, and more.

The ocean water column is made up of five zones: the sunlight (epipelagic), twilight (mesopelagic), midnight (bathypelagic), abyssal (abyssopelagic) and hadal zones (trenches).

Feb 25, 2021 · The abyssal zone, or the abyss, is the seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth, where sunlight doesn’t penetrate.

Nov 14, 2024 · The upper layer of the ocean is known as the sunlit, or euphotic, zone. Because water strongly absorbs light, sunlight penetrates only to depths of about 200 meters (656 feet).

Nov 14, 2024 · The hadal zone occurs only in trenches, which can extend to 11,000 meters deep (36,000 feet). Hadal regions combined across all oceans make up an area about the size of Australia.

Sep 29, 2023 · The ocean twilight zone is a layer of water that stretches around the globe. It lies 200 to 1,000 meters below the ocean surface, just beyond the reach of sunlight.

Benthic Life Benthic animals live on the sea floor and are typically invertebrates, such as sea anemones, sponges, corals, sea stars, sea urchins, worms, mussels, crabs, and more.

Aug 20, 2020 · Phytoplankton are primary producers of the ocean—the organisms that form the base of the food chain. WHOI explores the microscopic, single-celled organisms.

Plankton are the diverse collection of organisms found in water that provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales.

Nov 14, 2024 · The midnight zone, or bathypelagic, extends to about 4,000 meters (about 13,100 feet), which reaches the ocean floor in many places is in perpetual darkness.