What are the creatures in the depths of the ocean? What life is in the depths of the ocean

Sunlight is essential for the survival of most living things on Earth. This is true not only for life on land, but also for life in the sea.

All kinds of life in the ocean form an indispensable food chain: big fish eat small fish – small fish eat zooplankton – zooplankton eat phytoplankton – phytoplankton use the sun to convert water, carbon dioxide and minerals into carbohydrates, proteins and fats. Phytoplankton are the basic food of the ocean.

The remains of marine flora and fauna sink to the bottom of the sea, some of which will become food for the animals of the sea, while others will decompose and decompose into various chemicals and then rise to the surface to supply phytoplankton. In this way, life is endless. However, sunlight is a necessary factor in driving this cycle.

Phytoplankton are the most basic molecules in the cycle of marine life. These phytoplankton use the energy of sunlight and chemicals in the sea to make sugars and starches, a process called photosynthesis.

Although there are countless large fish, small fish and other creatures in the sea, they never worry about food, because there are countless zooplankton in the sea that can be eaten by small fish, and the phytoplankton that are eaten by zooplankton have an astonishing reproduction rate, with 100 million offspring being bred in 30 days. However, sunlight must be used for photosynthesis in order for zooplankton to get food. So, in general, life in the ocean depends on sunlight.

Zooplankton float in the sea with the change of daylight day and night, and this range of movement up and down in the sea is about 150 meters, so most marine life grows in the sea at such depths.

What are the amazing creatures on the bottom of the sea, how many of these marine animals have you seen?

1. Sea cucumber slag culture:

Sea cucumbers are marine echinoderms that live up to 8,000 meters by the sea, feeding on seafloor algae such as finches and plankton. Sea cucumbers are covered with thorns and are widely distributed in the world's oceans. Sea cucumber is as famous as ginseng, bird's nest and shark fin, and is one of the eight treasures in the world.

Sea cucumber is not only a precious food, but also a valuable medicinal material.

2. Sea urchins: Sea urchins are a class of invertebrates that live in the shallow waters of the ocean. The main characteristics are that the body is spherical, disc-shaped or heart-shaped, and there is no long tubular digestive tube without a wrist, coiled in the body, and feeds on algae, hydroids, and worms.

Sea urchins are distributed on the seafloor from the intertidal zone to a depth of several thousand meters, and are mostly concentrated in the rocky or sandy seabed of the Suibi coastal zone.

3. Starfish: Starfish are.