As the distance got closer, Zhou Sheng also saw seabirds circling the sea.
The fan-shaped fish detection picture on the bow shows a large school of fish underwater.
Zhou Sheng slapped his skull a few times when he saw it: "It would be more comfortable if it were a seine boat, why not a seine boat?"
"If you are being bullied, please slow down quickly," Chen Yuandao said.
Zhou Sheng quickly slowed down, adjusted to the dual-engine economic cruise mode, and drove the fishing boat over.
The fishing boat observed outside the fish school and also turned on the vertical fish detector during the period. This was a school of white fish.
This is a tropical fish that can be found in tropical seas all over the world. The price is very cheap. This kind of fish does not seem to be found in China. It is mainly found in equatorial waters. It should be a member of the Barracuda family. It looks a bit like a barracuda.
Similar, with silvery white stripes on the body.
This kind of white fish has no teeth and is not very big. The larger white fish only weighs three to four kilograms, and the more common white fish weighs less than one kilogram.
White fish are very common, with tens of thousands of fish in one school.
The school of white fish we see now is very big. There are bonitos surrounding the white fish school, and sharks, tuna, etc. are chasing behind the bonitos.
A person who specializes in finding fish can calculate the number of fish in a sea area. Chen Yuan can also calculate this way...
Thousands of tuna, mostly adult yellowfin tuna, are worth at least tens of millions.
4. Random behavior: Individual fish usually swim randomly in the water in order to find food spots or partners around them in a wider range.
"How much is a lot?"
The inside is white fish, the outside is bonito, and then there are wolffish, shark, tuna, etc.
"What kind of fish are the tuna surrounding?" Takaha asked.
There are fish jumping out of the sea, not just one or two, but many fish jumping out of the sea...
"Basically, they are adult tuna." Chen Yuandao said, "However, the tuna here are already hunting."
Know the area of the fish school, then observe the vertical fish detection screen and record the number of tuna. The total number of tuna will appear in a certain period of time. By comparing the area where the fish school spreads, you can determine the approximate number of tuna.
Chen Yuan turned on the wireless phone: "Hello, Master."
Chen Yuan and the others encountered two schools of fish on the first day they came to Gilbert for fishing. The first one was a school of bonito, and the chasing fish were tuna. The second one was also a school of bonito. When they found the school of fish, they
It's a school of vegetarian fish...
After observing the outside of the fish school for more than ten minutes, Zhou Sheng asked: "How is it?"
3. Tail chasing behavior: When one or several fish in the fish school find food, their nearby partners will follow them to quickly reach the food point.
Lin Xinhai's scalp was numb now: "Are there really thousands of tails?"
And the fish swarm algorithm can be used to artificially gather fish.
Chen Yuan and the others stayed away from the fish school and used a fan-shaped fish detector to observe. The fish school was in chaos. The small fish in the central area began to escape, and the big fish chased them...
"A lot is a lot." Chen Yuan took a deep breath: "It feels like all the tuna within dozens of nautical miles have come over. But it's not easy to deal with..."
This fishy smell is not the smell of fish stalls in summer wet markets, but the smell of tuna. The pure smell of banknotes.
"Let's come over now..." Lin Xinhai said.
"Don't worry, come back after you collect the rope." Chen Yuan said.
There are too many fish here. Chen Yuan calculated the approximate number of tuna through the vertical fish detection screen.
When one type of fish gathers together, it can easily attract other fish.
2. Grouping behavior: Fish will naturally gather into groups in order to ensure their own survival and avoid danger during swimming. There are three rules that fish follow when grouping: Separation rules: try to avoid overcrowding with nearby partners;
Quasi-rule: Try to be consistent with the average direction of neighboring partners; Cohesion rule: Try to move toward the center of neighboring partners.
"We'll be right over." Gao He slammed the table excitedly and yelled, "How's the size of the tuna?"
But here, the fish school is bigger. Moreover, the bonito has also completed the encirclement of the white fish...
Fish can often find places with more nutrients on their own or by following other fish, so the place where the largest number of fish live is generally the place with the most nutrients in the water area.
Some seabirds flew to their fishing boats, and some flew to the nearest island...
Chen Yuan and the others knew where the three seine boats of Dongjiang Fishery were, and there was no need to contact them.
Chen Yuan said 'hmm'. He wanted to contact Luo Hao and ask if there were any seine boats nearby... but he thought that Dongjiang Fishery only had three seine boats operating here, and they were all in the north.
This is the sea area where two large currents meet. There are relatively many nutrients. Without external intervention, there is a high probability of fish gathering.
In the second school of fish, we also caught some tuna when we set the hook.
"Only more, not less. There is a certain probability of more than two thousand." Chen Yuan took a deep breath, the fish gathered, and the air was filled with an alluring fish smell.
The mixed fish of bonito and tuna is easy to catch, and bonito swims very fast. It is not particularly easy for tuna to chase bonito. At that time, it is easy to catch tuna when you set the hook.
"It's hard to catch this fish, so we need seine boats." Chen Yuan said.
Fish often have some typical behaviors.
The seabirds on the sea surface have already announced their meal.
So for some common fish groups, there are only very few fish of a single species.
Chen Yuan lit a cigarette, looked at his notebook, and took a deep breath: "A lot."
"exist."
Tuna also move in groups, even when hunting. This is a fish school of fish...
Big Fish and Gaohe are 97 nautical miles away from here. It's too late to rush over and set the hook now. And even if the hook is set, the probability of hitting a tuna should not be particularly high.
1. Foraging behavior: Under normal circumstances, fish swim freely and randomly in the water. When they find food, they will swim quickly in the direction of gradually increasing food.
The current fish school is complex.
"This is a mixed fish school. The innermost ones are white fish, sardines and other small fish, and the outer ones are bonito, tuna, etc." Chen Yuan said: "The hunting has already started."
There are really a lot of tuna here. Just now, a school of tuna appeared on the vertical fish detector.
The size of the tuna reminds you that it is very easy to tell whether it is a tuna or not.
"There is no seine boat." Gao He said.
The seabirds dispersed and a large-scale predatory scene began.
I won’t talk about the first school of fish.
"We found a large fish school with at least a thousand tuna, mainly yellowfin tuna," said Chen Yuandao.
"Alas~!"
Zhou Sheng held his head in his hands and was in pain.
Chen Yuan also rubbed his cheeks vigorously. Such a school of fish was born to exist for seine boats. It's a pity.
If this purse seine boat comes over and catches the net, it will be "rich" in two words.