Beach of Japan found that hundreds of spine crown starfish stranded death

Beach of Japan found that hundreds of spine crown starfish stranded death

Dried up and died more than 800 spine crown starfish on the beach

These multi-tentacled starfish named because of their body is covered with a protective toxin acupuncture, because the whole of them look like a crown. Squeeze his stomach, so that the abdomen is prominent to predation, they secrete digestive juices to digest food, and then absorbed nutrient. An adult spine crown starfish year can eat about 6 square meters of coral reefs.

Japan's Ishigaki Island oceanographer recently discovered that a large number of crown-of-thorns starfish stranded on the beach. The researchers speculated that these starfish to place too close to the beach foraging stranded death.

The researchers said that in January 2012, they have been found in southern Japan, hundreds of crown-of-thorns starfish stranded on the beach, these starfish can not stand the hunger to foraging on the beach strandings. More than 800 stranded crown-of-thorns starfish have been found in Japan's Ishigaki an approximately 300 m long beach.

Starfish number of explosive growth initially in 2009, researchers found. At that time, the researchers found that a large number of starfish on the outside of the coral reef of Ishigaki Island during the breeding. These coral-eating starfish and spent the next three years and move it slowly they are now stranded on the beach. Starfish number showing the explosive growth of the reasons are not clear, but this strange phenomenon to the oceanographer reveals the fact that one is taking place: the slow-moving starfish, have slowly run out of food on which they survive. .

Fisheries research institutions researcher Suzuki said, "The shortage of food (coral) may be the reason a lot of stranded starfish." Him in his research station witnessed the phenomenon of a large number of stranded starfish. Mr. Suzuki and his colleagues published an original 60% of coral coverage area area is greedy starfish have eroded only 1% of the area described in the "coral reef" journal articles.

The oceanographer Description starfish how slowly near the coastline. They speculated that the starfish to produce such a move may be due in order to find more coral as food. Mr. Suzuki believes that the ocean currents and waves may also play an important role in this phenomenon. When the starfish their move to the coast, the sea would be the way to push them to this no return line. The researchers note that these starfish is basically dead on the beach rather than dead in the water, so the researchers believe that these starfish is too hungry, resulting in very weak and can not return from the beach into the sea.