Why are animals living in the ocean often carnivorous?

The reason why animals living in the ocean are often carnivorous is because the plants in the ocean are very small, and plankton are not visible to the naked eye, and there are still many of them, but they cannot be seen with the naked eye.

The reason why there are so few herbivores in the ocean is because vegetation needs sunlight to grow. We know that seawater can isolate sunlight from photons, and that deep enough seawater can cause vegetation to die if it is unable to photosynthesize.

However, the depth of the ocean is not fixed, most of the ocean depth is more than 50 meters, resulting in the seabed plants do not receive enough sunlight, only in the depth of the ocean does not exceed 50 meters, it is possible to grow plants, so the range of dugong life is often 30 meters to 40 meters of the sea area.

Phytoplankton are smaller and rootless than vegetation that grows on the ocean floor, and can drift with the waves to places where the sun is more abundant, unlike plants that are limited by the depth of the sea. It is precisely because of this that the energy of marine life is directly or indirectly here, so phytoplankton is also called marine pasture.

Although there are fewer plants in the ocean, there are many organisms in the ocean, according to research, phytoplankton photosynthesis produces about 7 times more energy than land plants, we know that humans emit more than 100 billion tons of carbon dioxide every year, but land plants can only absorb half of it, and the rest of the carbon dioxide is absorbed by phytoplankton.

In fact, the ocean, like the land, has an ecological chain, in which the organisms that can photosynthesize are called autotrophs, and on land, most of the autotrophs are plants; But in the ocean, autotrophs are mostly phytoplankton. The energy provided by phytoplankton is preyed upon by small fish and shrimp, and the ecological chain on the earth is based on vegetation, but in the ocean, the ecological chain is based on phytoplankton.

As a result, phytoplankton function in the biological chain as much as vegetation on Earth, and they also regulate the Earth's atmosphere and energy as marine organisms**. Unlike terrestrial vegetation, many phytoplankton do not have chloroplasts, such as cyanobacteria, which are prokaryotes and do not have a formed nucleus.

In general, it is not that there are few plants in the ocean, but because of the small size of "plants", there is no way for humans to see them, and they can be used directly from some algae and survive, so it is difficult for humans to notice.

The social ecosystem of the law of the jungle. In every social biological chain, there will be the existence of the law of the jungle, which not only determines the rules formulated by society, but also it is the dominant one of social rules.

Because there are very few plants in the ocean, and there are many fish, the animals living in the ocean are often carnivorous.

Marine animals move in a variety of ways, and here are some of the most common ones:

1.Swimming: Many marine animals such as fish, cetaceans, and dolphins swim to find food, hide from predators, and breed.

2.Diving: Some marine animals, such as whales and turtles, are able to dive to the bottom of the ocean for long periods of time.

3.Diving for predation: Some marine animals, such as sharks and tuna, swim in the water at high speeds and then suddenly stop to hunt for remorse creatures.

4.Floating: Some marine animals, such as jellyfish, turtles, and certain cetaceans, are able to expel water from their bodies through their stomata or stomata to keep their bodies afloat.

5.Benthic: Many marine animals, such as crabs, octopuses, and some fish, live in sediment, rocks, or coral reefs on the ocean floor and grab food by wriggling or tentacles.

6.Gliding: Some marine animals, such as sea serpents, nudibranchs, and certain octopuses, glide on the ocean floor or other objects through the contraction of their bodies and the contraction of their muscles.

7.Camouflage: Some marine animals, such as chameleon octopuses and groupers, are able to change their body color or texture in order to better hide themselves or hunt prey.

8.Sonic communication: Whales, dolphins, and some seabirds communicate and navigate by emitting sound waves of specific frequencies.

9.Luminescence: Some marine animals, such as firefly squid, jellyfish, and certain fish, are capable of emitting bioluminescence, which can be used to attract prey or courtship.

10.Airbags: Some marine animals, such as sea lions, seals, and penguins, have airbag systems that allow them to float in the water while walking on land.

These are just some of the ways marine animals move, and there is more biodiversity in the ocean than we think.

1.In terms of temperature, the marine ecological environment is more stable than the terrestrial ecological environment, so organisms are easy to grow.

2.Terrestrial organisms are affected by the structure of their bones and their ability to bear too much, while marine organisms can rely on the buoyancy of the seawater to reduce the bearing capacity of the bones of organisms.

3.The ocean space is large.

4.The living space of marine organisms is three-dimensional (two-dimensional for land living space), and it is easier to avoid enemies.

5.The ocean is rich in food.

6.The currents in the ocean bring sufficient nutrients and feed, and the ingestion of organisms can reduce the amount of energy spent on feeding, which can be used for growth or reproduction.

7.The oceans have been exploited less than the land.

Corals, various marine plants (seaweed, kelp, etc.), marine plankton, molluscs (starfish, jellyfish, sea cucumbers), various shellfish, fish, mammals (dolphins, whales) and many more.

The animals in the sea include seahorses, sharks, jellyfish, tuna, crabs, squid, octopus, turtles, oysters, whales, abalone, hairtail, white minnows, minnows, redfin fish, tenchfish, dolphins, sea lions, etc.; There are mainly algae plants in the sea, such as cyanobacteria, red algae, brown algae, green algae, coral, kelp, sponge, spirulina, rotaphylla, etc.

Most of the animals that live in the sea are aquatic animals that have not been separated from the water during the evolution of the species, or aquatic animals that have been transformed from terrestrial animals to aquatic animals, and they can carry out aerobic respiration in the water, such as whales, which use their lungs to breathe.

The plants in the sea are mainly algae, and sometimes there are others, such as algae plants multiply very quickly, so in some sea areas, the wild growth of algae will cause eutrophication of seawater, affecting the life of animals in the sea, and also affecting the growth of nearby plants.

These animals and plants are interdependent, for example, after the death of animals, the corpses decompose to become the nutrients of aquatic plants, and many plants are the food of animals, so they are indispensable to others.