Agriculture Idol

Chapter 79 Fish Observation Base
There are many classifications of marine ecosystems, but they usually include three categories: autotrophs, heterotrophs, and decomposers.Generally speaking, autotrophs are producers, mainly photosynthetic plants with green pigments, including planktonic algae, benthic algae, and marine seed plants; and photosynthetic bacteria.Heterotrophs, for consumers, include all types of marine animals, including benthos, fish, and even seabirds.Decomposers include marine bacteria and marine fungi, and certain benthic organisms are also counted in this category.

Now, Li Chengxin and the marine environment team brought by Professor Yang are studying how to improve such a marine ecosystem step by step.The previous red tides brought a large number of algae, and if there were too many algae, it would easily cause ecological imbalance.So the next step for everyone is to create an environment that the benthos like, especially shrimp and herbivorous crabs.

In fact, the bamboo fence that Li Chengxin made before is the environment that shrimps and small fish like. However, in order to improve the entertainment and scientific education of the live video, he consulted Professor Yang and conducted comparative experiments using seaside materials.Following the instructions from Li Chengxin and Xiao Jia, several students went to the sea to catch shrimps.

Li Chengxin began to use the collected materials to make different terrains in the large water tank.Use bricks to build a structure with square holes, pile sand into a pile, pile small stones on the other side, and tie a bundle with thin branches and put it in another corner.Several benthic organisms with different materials and different structures like to put them in the same fish tank and add water.

Just then, a few students caught a few shrimps and came back. Li Chengxin took the shrimps and put them into the fish tank. Then everyone began to quietly watch the habitat chosen by the shrimps.

Several small shrimps wandered around in the fish tank to explore the new environment at first, and one kept fiddled with the sand in the sand pile. Everyone thought that this shrimp would get into the sand, but it ran to the bricks again; the other They only walked around the fish tank several times without stopping; two of them huddled in the angle between the bricks and the fish tank as soon as they entered the fish tank; In the shadows formed, never willing to come out again.Until the end, after a few shrimps became familiar with the environment, most of them chose to hide their bodies among the bamboo branches and branches.

In fact, this is also the result of a few students basically counting.

When Li Chengxin asked them to catch shrimps, most of them chose near the bamboo fence made by Li Chengxin. Although some shrimps were caught from the rocky beach terrain, even the shrimps caught on the rocky beach terrain were finally in the The habitat chosen in the fish tank is still the part of the branches and bamboo branches with intricate terrain.

Originally, Professor Yang planned to build another device for raising shrimps, but after thinking about it, Li Chengxin's bamboo fence can actually attract many benthic organisms.So I sent a few students to remove a section of bamboo fence at a place where the waves were relatively stable, put a fine-grained net bag under the fence, put the fence back, and installed an underwater camera inside the fence.This is also the step of sampling and recording.

Due to the big action of several students demolishing the fence, the creatures nearby had already fled. Several students with surveillance cameras took turns to observe, but no creatures appeared.This wait lasted three days.In the evening, benthic life begins to come alive.

"There's a crab!" the girl who was eating and looking at the camera suddenly shouted.People working nearby gathered around to take a look, but they could only see half a crab leg flashing past at the edge of the image.And then there was no more.

On the fourth day, the camera finally caught a whole shrimp.

A week passed. Professor Yang felt that it was almost time. After it got completely dark, he asked Xiao Jia to take a few students to remove the tampered section of the fence.

Several students paddled the small sampan of Li Chengxin's house, pulled the whole section of the fence out of the water, put the fishing net under the fence into the small sampan, put away the underwater camera, and inserted the fence back to its original position. bit.After inserting the fence, Xiao Jia slightly fixed the top of the fence to prevent the fence from being washed away when the tide rose at night.

The fishing net was taken back to the courtyard of Li Chengxin's house, where Professor Yang and the rest of the students had already cleaned up the place, and all the lighting was ready.As soon as the fishing net was unfolded, the two girls who were looking at it screamed and ran away.

[A large collection of grams! 】

[No wonder marine life always goes well with Cthulhu]

Under the light, in the mud at the bottom of the fishing net, countless tiny things wriggled.

A few small crabs struggled and ran out of the mud. The eight legs covered by the mud moved quickly, and mixed with other things in the mud, it was particularly indescribable.Crabs, shrimps, small fish, screws, worms... are separated from the mud bit by bit and put into different small fish tanks.

"Not bad, this ecology has gone a step further." Li Chengxin finally got a compliment from Professor Yang.

The scorching sun shone down on Hongming Village, and the children on summer vacation returned to the village one after another to escape the heat, running and screaming on the sandy beach every day.At this time last year, Li Tianzhe was stung by a sea urchin, which started the vigorous sea urchin breeding business in Hongming Village.

This year's sea urchins are still the best-sellers. A batch of sea urchins bred in April has been sold, and nearby fishermen who started raising sea urchins are starting to collect the next wave of sea urchins.

The children in the village are the main force in sea urchin fishing. They can play in the water and earn pocket money. Why not do it.For this reason, the village committee set up shark prevention nets near the sea area, hired a few villagers with good water skills and some strong workers who worked in Zhou Hao's resort, and formed a security and lifeguard team. Coastal inspections, focusing on a few children who are stuck in the sea every day.

There are more children on the coast, and those who are quiet and don't like to go into the sea and make trouble, often come to Li Chengxin's small yard to see the marine life that Professor Yang and the others have caught and put in the fish tank for recording.Even if you can't touch it, it's good to take pictures and send them to the class to show off to your classmates.

Among them, there are many strange-looking fish brought by fishermen from the distant sea to Professor Yang for identification. For many fishermen, many deep-sea fish are actually not common and they don’t know them. There is a Professor Haiyang, if you don’t use it for nothing, just take it to Professor Yang to recognize it, and gain some knowledge.

At the end of July, Professor Yang left with his students, but Xiao Jia stayed.Xiao Jia's goal is to build an underwater fish observation base and observe various fish there.His goal and Zhou Hao's resort construction hit it off, because Zhou Hao planned to introduce the marine environment into the resort, such as building an underwater restaurant and the like.Xiao Jia is just about to graduate, and he has this intention. If this kind of talent doesn't sign immediately, is he going to let someone else sign?
　Thank you for the book friends "Follow Your Heart 2018" for the reward~
　　
　
(End of this chapter)