Starfish is also known as Pai Da Xing, which in our impression is a soft and cute, harmless little creature.
However, it is such a seemingly powerless little creature that has recently turned into a nightmare for the residents of Qingdao Jiaozhou Bay - a dense "starfish army" has violently invaded the red island waters of Qingdao, turned into a demon that devours everything on the seabed, and swept away the clams and sea oysters that fishermen have worked hard to breed.
In order to save the fishermen's losses, the local government even allowed the fishermen to use the "net of extinction" that had been banned for many years, trying to eliminate these uninvited guests, but despite this, the local fishermen in Qingdao still suffered serious economic losses.
So, what kind of creature is starfish? Why did the harmless starfish suddenly erupt on a large scale? In this article, the webmaster will talk to everyone about this topic.
<h1 class="pgc-h-arrow-right" > what kind of creature is the "beautiful killer" starfish? </h1>
What kind of creature is this flood of starfish?
Starfish is a collective name for more than 1,500 species in the five orders of the echinoderms Phylum Starfish, and the flood of starfish belongs to the pincer echinodontidae, which is the most common starfish species in the northwest pacific coast.
Starfish seems soft and cute, harmless to humans and animals, but as a typical carnivorous animal, its predatory behavior is very fierce, such as shellfish that make large fish helpless, and when it encounters starfish, it can only consider itself unlucky.
How do starfish prey on shellfish?
It turns out that starfish will wrap the shell of the double-shell shell with its own wrist when preying, and then use brute force to pull the shell left and right, and the shellfish soft body that has lost the protection of the hard shell is exposed to the mouth in the center of the starfish's abdomen, and at this moment, the starfish will turn out one of its stomachs - cardia stomach to wrap the food, digest it locally, and then swallow the food and give it to another stomach - the pyloric stomach to slowly process.
However, although starfish has a big appetite, its digestion ability is really poor, and the data shows that starfish can only digest 5.7% of the food it swallows, which directly leads to it eating almost all the time, leaving no fish where it passes, so fishermen often call it "seabed locusts".
Starfish prefer shallow waters with lower temperatures, and only the Yellow Sea and Bohai Sea areas in China meet this condition, especially along the Coast of the Liaodong Peninsula and the Yanwei Fishery in the north of the Shandong Peninsula, where the shallow water depth is also cooler.
Qingdao's Jiaozhou Bay is in the Yellow Sea category, suitable for the habitat of multi-spiny sea car, so this starfish flood is not a biological invasion.
< h1 class="pgc-h-arrow-right" > why did the harmless starfish suddenly erupt on a large scale? </h1>
Although the feeding habit of starfish is fierce, it is not without natural enemies, a large number of fish, benthic large snails can effectively suppress the size of the starfish population, so according to the introduction of Qingdao fishermen, although starfish has always existed in previous years, such a flood phenomenon is relatively rare.
So why did this "starfish army" suddenly break out?
The station manager believes that this starfish outbreak is likely to be man-made.
First, with the boom in offshore aquaculture, fishermen prefer to farm shellfish of higher economic value, such as clams (locally pronounced "Gala") that the locals like to eat.
"Drinking (pronounced "Ha") beer to eat clams (pronounced "Gala")", blowing the sea breeze to drink beer and eat clams is the most authentic style of Qingdao people, so under the consideration of economic benefits, the scale of shellfish farming in the beach has expanded rapidly, and this has also made it easier for starfish to find food, which has greatly promoted the reproduction of starfish.
In addition, while people are chasing economic benefits to expand shellfish farming on a large scale, some predatory marine fish stocks without markets are becoming less and less, and starfish's natural enemies are decreasing.
It is precisely because of the increase in food and the decrease in natural enemies that there has been a concentrated outbreak of starfish.
<h1 class="pgc-h-arrow-right" > can a flood of starfish really solve the problem by eating? </h1>
The first thing the webmaster wants to say is that all the ideas that advocate eating to solve the problem of starfish flooding are unrealistic.
Although starfish can be eaten as seafood, but it is far less delicious than clams, sea oysters, if starfish is a kind of seafood that can barely be eaten for Qingdao people, then clams are fate for Qingdao people!
By eating to solve the starfish, before the starfish is caught, I am afraid that the delicious clams have been swept away by the starfish.
Therefore, it is absolutely impractical to solve the problem by eating.
The same example is bullfrog and crayfish, two animals that are very popular and expensive in southern restaurants, but that doesn't stop them from continuing to be invasive species in China's wild water bodies, and you can't catch and eat them all.
Do you have any thoughts about the starfish flood that broke out in Qingdao?
How do you think the starfish flood can be solved? #中国海星泛滥 Is it reliable to eat it all? #
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