"Perspective Society · Ecological Supervision" has a large -scale invasion of Qingdao Jiaozhou Bay!Netizen: Eat light ... Is it reliable?

Guide

Little starfish are known as the "underwater locust", and these "beautiful killers" will cause clams and oysters to be disaster. Since last year, a large number of starfish have appeared in the waters of Jiaozhou Bay, Shandong, causing major losses to local shellfish breeding.

A few days ago, the phenomenon of starfish surge in the shellfish breeding area of ​​the Jiaozhou Bay Sea area, and for the first time, a large -scale creature called "white mud", the scientific name "Jing's Shell". Gathering a large number of gathers for two consecutive years, is the starfish "rooted" here? How does these "underwater locusts" affect shellfish breeding? What is the relationship between "white mud" and the outbreak of the starfish? In addition to artificial fishing, is there any other way? What's more?

"Underwater locusts" invaded, shellfish farmers have suffered heavy losses

The reporter saw at Yinghai Wharf, Jiaozhou City that a fishing boat full of starfish was leaning on the shore, and a large number of shell shells were mixed in the seafront. A farmer told reporters that they had already traveled to the star on the same day to fish for a starfish, and each fishing was about 1500 kilograms. These starfish films appear in the breeding area and swallow the sea to clams, which also causes heavy losses to farmers.

Source: Public Network Poster News Client

Shellfish farmers: Starfish has a great influence on our clam farmers. I invested more than 3 million yuan this year and lost two -thirds, causing huge economic losses.

Source: CCTV

After survey by experts and diving sampling in the sea, the Star Star density of the Hongshiya Breeding Zone in Jiaozhou Bay is 10-15/square meters, and the density of the starfish density of the seas of the central and southern seas of Jiaozhou Bay is 1.7/square meter. The distribution of starfish.

Experts have judged that the current starfish has caused harm to the production of Jiaozhou Bay shellfish breeding and spread. The local marine authority also adopted a variety of measures to deal with starfish disasters, minimizing the economic losses of farmers.

Han Bing, deputy director of the Shandong Qingdao Marine Management Guarantee Center: Since July 1, the shellfish breeding area designated in Jiaozhou Bay allows fishermen to use the way of ground cage and bottoming nets to conduct Clean up.

Why is starfish called "underwater locust"?

Stars usually have gorgeous colors. The five -pointed star shape is always lazily lying on the bottom of the sea. It looks like a harmless man and animal, but don't be deceived by its appearance.

Source: CCTV

This time, the "group" came to Jiaozhou Bay to prey on the starfish of the clam. The scientific name is the "Multi -Stroke Sea Cars", which is the most common starfish species in the Northwest Pacific offshore. It is a typical carnivorous animal. Adult starfish predatory predatory, and particularly non -picky eaters. As long as it is a creature that is smaller than its underwater volume, such as oysters, abalone, sea cucumber, etc.

What is the harm of Starfish and "Jing's Shell" at the same time?

According to the news of the "Blue Qingdao" of Qingdao Ocean Development Bureau, recently, fishermen have discovered the number of starfish in Hongshiya, Yinghai, Hongdao, Liuting and other waters in Jiaozhou Bay, and a certain number of "Jing's Shell" appeared. Also known as "White Mud".

Source: Public Network Poster News Client

This kind of biological appearance is milky white, with oval and translucent. It is understood that both starfish and "White Mud" can prey on a breeding shellfish such as clams and oysters. It is an enemy creature of shellfish. According to media reports, this year, this "Jing's shell" has appeared in scale, which is still reported for the first time in Jiaozhou Bay, Qingdao.

Is "White Mud" also "Underwater Locust"?

Source: CCTV

What kind of creature is the "Jing's Shell" that appears on the large scale of Jiaozhou Bay? Is there any other way to do besides artificial salvage?

Facing the outbreak of the number of species of starfish and the "Jing's Shell", local fishermen also allowed fishermen to use ground cages and other equipment to clean up for a period of time. In response to the method of "eating light starfish" proposed by some netizens, experts said that the edible part of the starfish contains mild toxicity. It is recommended not to eat too much.

Zhang Guangtao, a researcher at the Chinese Academy of Sciences, said that the most direct way now is to discover that it has been out of line up, but it is still difficult to prevent prevention. Putting on the ground cage is a way to clear. Prevention is still to be done from its early population supplement.

There are many suspected groups to be solved about "locust locations"

The reporter found that the current domestic research on hostile creatures such as starfish and "white mud" is still insufficient.

On the Zhiwang platform, there are less than 5 academic articles about the prevention and treatment of starfish. Li Chenglin, a researcher at the Shandong Provincial Academy of Ocean Sciences, told reporters that there has always been a few research reports on the growth and development of starfish growth and development in China, and the harm has not attracted great attention from scholars and fishermen. In contrast, people know less about "white mud". As of July 8, 2022, the academic papers named "White Mud" and "Jing's Shell" were zero. "Once the amount becomes accumulated, there will be disasters, and the cost will be huge."

Regarding why "White Muda" suddenly appeared on a large scale and why it "appeared" with starfish this year, there is currently no exact answer in the scientific community.

Industry insiders believe that to completely solve the problem of enemy biological outbreaks of Jiaozhou Bay, it is necessary to conduct a systematic investigation and study, to understand the life history of enemy creatures, suitable habitats, migration habits, etc. In the process, the necessary prevention and early warning mechanism is formulated to maintain the balance of the ecosystem.

"To solve the problem of a large number of hostile creatures such as starfish, you need to start with the overall marine ecosystem. Multi -discipline coordinated efforts, and also requires common efforts in policies and industries.Wait for the prevention and control measures, but hope to set up a specialized agency to organize researchers to investigate the distribution, harm and development trend of hostile creatures such as starfish in Jiaozhou Bay. At the same time, relevant departments formulate corresponding laws and regulations to strictly inspect and quarantine ships entering different places.The tool carrier that restricts the lake of lakestone is transmitted between different sea areas. Li Chenglin said that eliminating or reducing enemy biological disasters is a long -term project, which requires fishermen, experts and related departmentsWork, do not let enemy creatures "accumulate from quantitative to qualitative change".

(Reported by China Environmental Daily, CCTV, China News Network, Volkswagen Network)

Edit: Cheng Yi

School pair: Wu Yueran

Review: Gong Zimo

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