Live Wilderness Adventure

Chapter 543 GT! ! !

Dolphin Bay is surrounded by mountains on three sides, and faces the sea on one side, and it is gentle to deep. Before leaving the mountains on both sides, it is like a small lake.

After leaving the mouth of the bay, the depth of Dolphin Bay will suddenly increase to hundreds of meters.

Although dolphins are good at diving, it is no longer a problem for hundreds of meters, but their range of activities is mainly concentrated in shallow seas between 30 and 50 meters.

Therefore, the task range of Bi Fang and Mandy is between 10 meters and 80 meters. If one circle is expanded, the behavior and activities of dolphins can basically be fully photographed.

Probably more than 20 cameras were installed for this, which may not sound like a lot, but it is not an easy job.

Radio is extremely lossy in the medium, so the signal drops off very quickly.

Dielectric loss in water, above 30KHz, 7500dB/km, 20 meters can attenuate 150dB, even if there is a base station on the water, there will be no signal below 20 meters.

The cameras used by Bi Fang and others this time are all automatic shooting, and they will be recycled after everything is over to take out the shooting content.

Therefore, the underwater installation is completely different from the previous camera in the mountains. Whether the position is right or not, it cannot be observed in time. The previous installation position can also be adjusted continuously through remote command, but now there is no such opportunity.

In view of the imminent start of the dolphin hunting season, the difficulty of underwater installation will increase exponentially. It is impossible to repeatedly install and debug, and only one success can be pursued.

The speed must be controlled by Bi Fang and Mandy.

Fortunately, before that, both of them had a lot of shooting training with the help of photography assistant Mond, and they were barely half professional photographers.

After installing the three cameras at a depth of ten meters in the shallow sea, Bi Fang Bi Fang and Mandy continued to approach the depths.

Twenty meters, thirty meters, has reached the limit of active sinking, the world is dark and silent, Bi Fang can hear the beating sound of his heart very clearly.

Running to the animal sounds that automatically appeared in my mind, this may be the only signal that I can feel that I am still alive.

Bi Fangmo counted his heartbeat. When it was just like water, his heart rate was still 60-70 beats per minute, but now it has dropped to 30-40 beats per minute, more than doubled.

The special way of breathing can fill Bi Fang's lungs with ten liters of air, bringing a huge upward force, allowing him to float in the water without doing anything, reducing the amount of muscle exercise against gravity.

The further you go down, the more the water pressure squeezes the lungs. At this time, Bi Fang and Mandy are floating in the water relying on the air in their lungs.

At the same time, the diving reflex will cause the peripheral blood vessels to constrict, and the blood will leave the limbs and flow to the most important organs, such as the lungs, heart and brain.

And because of the huge amount of oxygen brought by the blood rushing to the brain, as long as there is no nitrogen intoxication, the diver's brain will be extremely clear at this time.

The more sober you are, the more you can feel as if you have come to another world.

Silence, darkness.

It has been said that people do not know half as much about the ocean as they do about the moon.

This is not an exaggeration, because even in 1977, people had already sent astronauts to the moon, but it was still very naive to think that there were no active life forms in the ocean abyss below 6000 meters.

There is unspeakable pressure in all directions, and every breath through the breathing valve to expand the chest is like doing an oversized grip and push.

It was as if he was firmly held by a giant and squeezed hard.

The equipment brought down by the first wave has been installed. With a distance of seven or eight meters, Bi Fang and Mandy pressed the flashlight switch and flashed it a few times.

Mandy nodded, stepped on the duck webs, took a deep breath, and was about to float up, when suddenly, a strong light flashed in front of Mandy.

That was Bi Fang pressing the flashlight, and it was extremely hasty.

Emergency signal!

Mandy's brain emptied his thoughts, and he hardly hesitated after receiving strict training. He twisted the direction only by his body instinct, but it was still a step too late!

The violently churning water was like a waterspout, and it hit Mandy's forehead hard with an irresistible impact.

In an instant, Mandy's eyes turned white, and water poured in from his teeth and nostrils. The real sea water had a bitter and salty taste.

It's a pity that Mandy can't feel it anymore. Under the violent impact, his consciousness has suddenly stopped and he drowned directly!

Before his consciousness died, he could only see a huge ghost head, a sharp mouth full of fangs, a high protruding forehead, and bulging eyeballs!

No one expected the sudden change, Bi Fang pulled out the harpoon from his waist and swam towards Mandy quickly.

A huge black shadow swam past the two of them at an extremely fast speed, and the churning water could even move Mandy, who fainted and drowned several meters away.

Bi Fang's flashlight couldn't see it at all. It was like a ghost, hovering around the two of them.

The shark's electric induction is indeed powerful, but it can only distinguish the basic size and existence of creatures, and it is impossible to accurately scan the shape of creatures like radar.

It was so fast that it hit Mandy before Bi Fang could react.

Bi Fang swam to Mandy's side, quickly put the breathing valve back on him, and tightened it tightly.

At this moment, Mandy's lung cavity had already been filled with sea water. Bi Fang came up behind him and used the Heimlich first aid method to squeeze Mandy's lungs violently.

At this moment, the lingering ghost reappeared within the range of Bi Fang's perception, attacking swiftly!

It's a pity that Bi Fang is not Mandy. Even if he can't see it, he can clearly sense the arrival of creatures and respond in advance.

Bi Fang dragged Mandy, stepped on the rock wall, and quickly left the original position.

The violent water brushed against his body and forehead, and the resulting pressure almost pulled Bi Fang back to his original position. He wanted to swing his knife to attack, but the speed of the opponent was so fast that he missed it at all.

Bi Fang lowered his head and glanced around, taking this opportunity to finally see part of the "ghost" clearly!

GT!

It is also called Niugang trevally!

An extremely huge Niu Hong Kong trevally!

Bi Fang was slightly startled, and firmly held the harpoon in his hand. Niugang trevally is the largest carnivorous fish species in the trevally family, and can jump out of the water to hunt seabirds.

The guy in front of him is at least 1.6 meters long! Weighing more than seventy kilograms!

A 1.6 meter GT can prey on sharks!

Niugang trevally, the bison in the sea, is an extremely powerful aquatic beast, with a steep head and a powerful tail as its main features.

The habitat depth is between 2-80 meters. It is a large coastal migratory fish. It is distributed from the west of South Africa to the east of Hawaii, including northern Japan and southern Australia.

It is often found in estuary areas and mainly feeds at night.

It is greedy and strong, and there is no other creature that can threaten it except sharks and humans.

With its muscular torso and oversized paddle-shaped pectoral and caudal fins, it possesses real power, explosiveness and amazing stamina.

The speed in the water can be as high as 60 kilometers per hour, and the human limit record can't even reach 40.

Moreover, Niugang trevally is ferocious by nature, and will catch all the small fish it encounters in the sea area, and even catch birds and young turtles staying on the sea surface.

When the bull trevally finds its prey, it will hit the prey violently to make it faint or swallow the prey directly.

The most frightening thing is that Niugang trevally often prey in groups, so they are very fierce in predation. Adult Niugang trevally swallowed juvenile Niugang trevally by mistake from time to time.

Is this guy crazy?

How dare you attack humans?

Niugang trevally has an extremely ferocious temperament, but it can't reach this level, right?

The 70-kilogram bull trevally is already on the same level as humans in terms of weight, and it is not common to attack animals of the same level, and it is only possible when food is scarce.

etc.

Is it because of the upcoming dolphin season?

Bi Fang guessed this possibility. The arrival of dolphins caused the nearby Niugang Trevally to fall into a state of food shortage for a short time.

So, is there really a shortage of food?

Bi Fang calmed down his heartbeat and tried his best to perceive the surrounding environment. Fortunately, it seemed that this was the only Niugang trevally nearby.

I don't know when they came to Dolphin Bay, bumped into Bi Fang and Mandy who were installing cameras, and even launched an attack on their own initiative!

The huge impact directly knocked Mandy, who was caught off guard, unconscious. This is why Bi Fang reminded him in time. If he hadn't subconsciously reversed his body shape, the impact might not be the hard forehead, but the fragile back of the head.

At that time, it will not be as simple as fainting, but may be killed on the spot!

no more.

Bi Fang took the time to look at the fainted Mandy, a huge wound appeared on Mandy's forehead, and blood flowed out.

The bull terrier hovering nearby was ready to launch a deadly attack at any time. Bi Fang hugged Mandy tightly with both hands, adjusted the oxygen pressure to the maximum, and squeezed his lungs again.

A large amount of seawater overflowed from Mandy's mouth, Bi Fang quickly tightened the breathing valve, and a large amount of oxygen escaped and poured into Mandy's lungs.

The second time, the third time.

Mandy probably never thought that as a diving champion, she would drown, and she was even rescued from drowning in sea water.

For the fourth time, the long-awaited Niugang Trevally attacked again!

Bi Fang quickly dodged to dodge, but it was not convenient for him to move around with the heavy Mandy in his arms. When he turned around for a short while, his arm was hit.

In an instant, Bi Fang even had the illusion that his arm was broken, and the blood was cut off instantly in the arm.

Swelling, numbness, pain.

Wave after wave of strange feelings hit my heart.

Even the harpoon in his hand almost fell to the bottom of the sea.

Bi Fang could keenly feel that under the impact of his right arm, a large number of capillaries were broken, and blood quickly accumulated under the skin.

He tried to hold the dagger tightly again, but it was as if his arm was pressed down by a nap, and he woke up with pain and numbness, and he couldn't grasp it at all.

No wonder this guy is called the Water Bison.

Really powerful!

Keke on the shore was completely unaware of what happened in the water. He hid in the dark, not daring to make the slightest sound or light, and carefully peeped around to ensure that no one came to discover what they had done.

The lighthouse not far away is still monotonously scanning the sea.

The curved-billed plover is the only bird whose beak naturally curves to the right.