Starfish flood in Jiaozhou Bay. What measures have people taken to solve this disaster?

Recently, a large number of starfish suddenly appeared in Jiaozhou Bay, Qingdao. These shellfish-eating starfish have had a great impact on local farmers. Their shellfish such as clams and oysters have been swallowed by starfish. The local marine development bureau has issued instructions to farmers, allowing them to take special measures to catch starfish and expel them from the current waters as soon as possible.

Local farmers paid a lot of money to local fishing boats to catch these starfish. Local fishermen say that they can catch starfish for about a thousand years when they go out now, and they can catch about 3000 kilograms from 6 am to 3 pm when the weather is good. Because starfish are difficult to catch, it is impossible to rely entirely on trawling, so they also arranged divers to assist underwater in the trawling process.

However, at the local seafood wharf, many foreign businessmen come to buy starfish, so there is no need to worry about the sales of the caught starfish. The local maritime staff said that about100000 kilograms of starfish can be caught from the relevant sea areas every day. At present, all farmers have been allowed to use cage nets to catch starfish around the farm. Ground trawl is a kind of fishing net with small mesh size, which can effectively remove starfish from the sea area where the net is used in the fishing process, so as to ensure the safety around the breeding ground and prevent the starfish from gradually eating away.

Experts have analyzed that such a dense starfish community in Jiaozhou Bay may be related to climate change. Due to climate change, the number of natural enemies of starfish larvae decreases, which leads to a higher survival rate of starfish larvae and a huge number of adult starfish, while the number of natural enemies of starfish adults is relatively small, resulting in a barbaric growth phenomenon without natural enemies. As the number of starfish increases, their demand for food increases gradually, so they will eventually go to the gathering place of shellfish and marine life in droves to hunt.