My Deep-sea Fishery

Going forward, Xiang Yang saw another huge eyeball on a beach.

This huge eyeball lying naked on the beach is a bit scary, but Xiang Yang has seen countless deep-sea animals with eyes bigger than this eyeball in the deep sea, such as the eyes of whales, squids, and even swordfish. Chances are it's bigger than this eyeball.

Xiang Yang lamented the tragic death of another sea monster, while continuing to walk forward slowly.

After walking forward for a while, Xiang Yang suddenly found that a large white object was densely scattered on the last section of the beach ahead.

"This is?" Xiang Yang froze for a moment, then quickly quickened his pace and walked forward.

Taking a closer look, Xiang Yang was stunned. These white objects were round like eggs.

"That's right, the shape is right when it's small, it's clearly a turtle egg." Xiang Yang was extremely surprised.

These white objects are definitely eggs laid by sea turtles in the ocean. The number of sea turtle eggs here is almost piled up into hills.

Xiang Yang looked at the sea surface in surprise, "So there are so many turtles in Qinglong Bend?"

The temperature and humidity in the sea area of ​​Qinglong Bend are very suitable for sea turtles to lay eggs, but Xiang Yang has basically never seen sea turtles laying eggs in Qinglong Bend before. It turned out that all the eggs were hidden on this small deserted island. If it weren't for this accidental discovery, this secret might never be known.

"This place is actually one of the important habitats for sea turtles." Xiang Yang was extremely surprised.

Sea turtles are a very common sea creature, unlike the very rare thaupis.

Most sea turtles like to live in the subtropical offshore upper layer and live in the ocean for life.

A few sea turtles like to live in shallow waters along the coast. Some species of sea turtles live in food-rich waters in winter and make a long-distance migration during the spawning season.

Generally, sea turtles have a very mixed diet. They feed on fish, cephalopods, crustaceans, molluscs, and seaweed, and sometimes they also eat garbage discarded by humans.

Speaking of which, sea turtles appeared on the earth more than 200 million years ago and are famous living fossils.

Xiang Yang picked up a turtle egg, then walked to the shore thoughtfully, squinting his eyes and looking into the distance.

Xiang Yang is very clear about the habits of sea turtles.

Every sea turtle is actually a good swimmer, and their long paddle-like forelimbs make them well-suited for life in the water.

Turtles have a migratory habit.

Sea turtles will migrate to warmer waters to resist the cold after the sea temperature drops.

But sometimes the peak surface comes too fast, the water temperature drops rapidly, and the body temperature, physiological activities and buoyancy control of the sea turtle cannot be adjusted in a short period of time, and it will freeze to death.

Sometimes these turtles stay in the mud for a long time, their metabolic rate is also reduced, and they engage in behavior similar to hibernation.

This is one of the few examples of hibernation found in marine life.

After years of research, American scientists discovered that the Earth's magnetic field is the compass and map for sea turtles to return home.

Scientists have long known that sea turtles can use the Earth's magnetic field and the position of the sun and other stars to find their way.

But for migrating turtles, a sense of direction is not enough. They may also have a map to know their geographic location and eventually reach a specific destination.

The growth rate of sea turtles in the wild environment is relatively uniform, with an average annual growth rate of 10-15 kg, with the highest growth rate at the age of 2-4, while in a captive breeding environment, the growth rate is relatively rapid, especially at the age of 1-2, the annual average weight Can grow 30kg.

In order to adapt to the living environment in seawater, sea turtles have salt-expelling glands behind their eye sockets, which can discharge excess salt in the body through the edge of the eyes, and can also desalinate the seawater they drink through the salt glands.

Sea turtles breathe with their lungs, but their chests cannot move. It is an air-swallowing breathing method. Every once in a while, they have to stick their heads out of the sea to breathe.

But sea turtles can also live underwater for longer periods of time, relying on their anal sacs to filter oxygen.

But at night, sea turtles have to rest on the surface of the water, and at this time they breathe completely by their lungs.

Although Xiang Yang is holding a sea turtle egg in his hand and looking at the sea, Xiang Yang knows that those sea turtles that have finished laying eggs will not return to this beach, at least not this year up.

The feeding habits of sea turtles are not only miscellaneous, but also eat a lot, especially the larvae, which are more carnivorous.

With the current fishery resources in Qinglongwan, it is impossible to support so many sea turtles. Those adult sea turtles must have traveled across the ocean after laying eggs, and they have long since swam to nowhere to look for food.

In the past, many people have seen sea turtles crying on land.

So, someone put forward a hypothesis.

Sea turtles have a memory of only seven seconds. They lay their eggs on the shore and then go to the sea to find food, and they forget where they laid their eggs.

Turtles that cannot find their babies will often cry loudly.

Actually not.

Sea turtles will swallow a lot of seawater while eating aquatic plants and take in a lot of salt.

Some special glands next to the lacrimal glands of sea turtles will discharge these salts to keep the density of salt inside and outside the body consistent, so sea turtles have tears on the shore.

A healthy turtle lifts its head up to breathe every once in a while, places it on the floor, tries to crawl, pulls its forelimbs, pulls its forelimbs back hard, lifts the turtle, and the turtle's forelimbs flap up and down.

Xiang Yang turned his head and looked at the turtle eggs piled up on the beach.

In a short period of time, these turtle eggs will not hatch yet, so Xiang Yang has not seen the scene of the turtle leaving the nest in a short period of time.

In fact, the picture of the little turtle returning to the sea is very spectacular.

The newly hatched baby turtles, regardless of the terrain of the beach or the climate change, will leave their nests, crawl across the sand, and return to the sea.

This is because the turtle's visual system reacts positively to the light signal, causing them to crawl towards the ocean with densely charged positive charges.

Newborn hatchlings have many enemies, such as seabirds and large lizards. Young turtles will inevitably encounter enemy attacks on their way back to the sea.

The survival rate of baby sea turtles is very low, on average only one or two out of a hundred can survive.

And once they live to adulthood, in the entire ocean, except for barnacles, only humans are the only ones who can kill sea turtles. No matter how strong the bite force is, no other marine life can bite through the thick shell of sea turtles.

It is worth mentioning that the way sea turtles reproduce is also very interesting.

Sea turtles have the ability to identify the place of birth. Although sea turtles swim in the ocean all year round, when the breeding season comes, even if it is thousands of miles away, it will return to the place where it was born to lay eggs.

Due to the increasing number of man-made structures on the beach, a large number of sea turtles who must return to the beach where they were born to lay their eggs cannot find the old place and choose to be sterile for life.