<Anchor> A
large, endangered freshwater shellfish was found inside a concrete farming waterway.
There is little water inside, and the depth of mud is shallow enough to reveal the bottom, making it a difficult environment for fish and shellfish to live.
Reporter Lee Yong-sik.
<Reporter> It
is a concrete agricultural waterway in Gunsan, Jeollabuk-do.
It is about 10 meters wide and 1.5 meters deep, and large freshwater shells stand out all over the floor.
Pearl clam and ear tooth symmetry.
Among them, the ear-toothed symmetrical is the largest species among freshwater clams in Korea, and when fully grown, it reaches 30 cm in length.
The number of individuals has declined sharply, and it has been designated as an endangered species first class.
[Researcher Jeon-Rak/National Ecological Institute Natural Environment Research Team: The ear tooth symmetry is on the left, but the ear is shaped like a chicken head.] The
ear tooth symmetry is 15 minutes after 30 minutes in a 200-meter waterway
.
I found Marie.
It seems that the young shellfish that lived on the Geum River side stuck to the fish and flowed into the farming waterway.
The concrete farming waterway here is a difficult environment for fish and shellfish to live because the water is so low that the bottom is exposed from winter to spring after rice farming is over.
The depth of mud on the concrete floor is at most 10 centimeters, which makes it easy to be caught by natural enemies and can freeze and die if it gets colder.
Actually dead shells are found everywhere.
[Park Young-jun/Senior Researcher, National Ecological Institute Natural Environment Research Team: Geumgang Estuary, etc. There is also a need to move objects, and it seems that there is a need to make various efforts.]
Measures such as moving to a safe habitat or improving the environment with agricultural water are necessary Do it.
(Video coverage: Kang Yun-gu)