At the bottom of the real marine food chain, how hard is it for sardines to live to old age?

As we all know, all living things on the earth are in a complete and large food chain, and they are mutually restrictive and competitive with each other. Today, however, we're going to learn about the creatures that live at the bottom of the marine food chain – sardines. Sardines are at the bottom of the marine food chain, and like the krill in Antarctica, they are not only abundant, but they also like to act collectively.

Schools of sardines that act collectively look terrifying, they are like "sandstorms" in the ocean, and ordinary marine animals really dare not break into the schools of fish to prey on them. However, this is limited to marine animals in general, with some larger animals enjoying schools of sardines as they always keep them fed. For example, we are familiar with tuna, sharks, etc., and even waterfowl like to dive into the water to hunt them.

However, these are nothing, and for sardines, there is nothing more terrifying than "whale swallowing".

Places where sardines congregate tend to attract a large number of predators. However, when the sardines are frightened, the outer layer of sardines will continue to swim to the middle for a sense of security, but this will make the sardines more dense, eventually forming a "sardine cage" that cannot be easily escaped. At this time, predators lurking around will wait for an opportunity, and the most terrifying predator is the whale, which will open its huge mouth and swallow these sardines in one gulp.

Of course, other animals can still share some soup and water.

Schools of sardines that act collectively may look like a "black sandstorm" in the ocean, but no matter how scary they may seem, there are no longer a few animals in the ocean that treat them as delicious and will go out of their way to prey on them. From the tuna familiar to humans to the unfamiliar short-tailed shark, they are all "roadblocks" on the road to the survival of sardines. Even waterfowl are able to dive into the water to prey on them.

But when it comes to the most terrifying, there is nothing more than "whale swallowing".

It is precisely because of this characteristic of sardines that it is difficult for sardines to have a chance to live to old age unless they can live separately, but this is impossible. What are your thoughts on this?

Almost impossible, unless it is inactive in any fish-infested areas, but often there will be few microorganisms, and it will also starve to death.

It's especially hard. Because of the law of natural selection, sardines need to hide from predators in order to survive.

Hard. As the bottom of the biological chain, as long as it grows slightly larger than it, you can eat it, and if you have escaped one catastrophe, you may not survive the next catastrophe, so the bottom of the food chain is not easy to live to old age.

From the perspective of living environment, sardines belong to the sea fish because they live in the ocean. Specifically, sardines are a type of warm-water fish, which means that they live in warm seas, that is, in lower latitudes. They can't survive in fresh water, so they need to be farmed with seawater.

As a result, they are difficult to breed and are rarely farmed. <

Sardines are a relatively common type of fish, and they are edible. If you classify fish according to their living environment, they can be divided into marine fish, which live in the sea, and freshwater fish, which live in freshwater. If sardines are classified in this way, sardines can be classified as marine fish because they live in the ocean.

Specifically, sardines are warm-water fish, which means that they live in places with warmer waters, that is, at lower latitudes. At high latitudes, sardines are very few due to the relatively low temperatures. There are many different species of sardines, and their specific distribution areas are also different.

For example, there is a species in the genus Sardines called "European sardines", which as the name suggests, are found off the coast of Europe, but also on the northwest coast of Africa, near the equator. For example, the genus Sardines contains more than 20 species, which are mainly found in the western part of the Pacific Ocean. On the southeast coast of our country, there are also some sardines, which belong to the genus Pseudosardines.

As mentioned above, sardines belong to the sea fish from the perspective of living environment, and they live in the ocean. There is a huge difference between the marine environment and the freshwater environment, and the salinity content is one big difference. Sardines have lived in the ocean for a long time and have adapted to the environment in the ocean, and their body structure and regulation mechanism are in line with the conditions of the marine environment.

As a result, they cannot live in fresh water, and if they are suddenly allowed to live in fresh water, they are likely to die because they cannot adapt.

It's very hard. Because sardines are at the bottom of the marine food chain and have many natural predators, sardines generally do not survive to die of old age before they are eaten.

Sardines have almost no resistance, and many animals in the ocean are their natural predators, and aside from these, humans will also use these fish, or use them as feed, or make paints and pigments, so it is almost impossible to live to old age.

Some of the larger animals are very fond of the sardine school, because it allows them to always have a full meal, such as the tuna, sharks, etc., and even the water birds flying in the sky like to dive into the water to prey on them, when the sardines are frightened, the outer sardines will continue to swim to the middle, in order to seek a sense of security, but this will make the density of the sardine school larger, and eventually form a "sardine cage" that cannot be easily escaped. At this time, the whale will open its huge mouth and swallow these sardines in one bite, and it is precisely because of this characteristic of sardines that it is difficult for sardines to have a chance to live to old age.

Synodontidae Snake mullet Saurida fish.

Pictured below is the <> of the multi-toothed snake mullet saurida tumbil

The body length can reach 60 cm, generally living in the middle and lower layers of seawater, is a demersal fish, is carnivorous, and feeds on fish, crustaceans and squid.

It is distributed in the South China Sea, the East China Sea and the northeast of Australia, Indonesia, the Philippines, the Malay Peninsula, the Red Sea, the east coast of Africa and other seas, with a depth of 10-60 meters. Canopy sails.