© UnknownThe bryozoan Pectinatella magnifica recently found at the Rung Lake in the northern province of Vinh Phuc.
Scientists are researching the origin of a type of bryozoan that has developed recently in a 70-hectare lake in the northern province of Vinh Phuc, killing the fish and leaving local residents very worried.
Bryozoan are invertebrate animals that reproduce by budding.
The creatures appeared in the Rung Lake in Tu Trung Commune in the province's Vinh Tuong District last May, but have proliferated on a large scale recently.
The provincial environmental research center, which is also tasked with preventing diseases at fisheries informed the Binh Minh Cooperative, which manages and exploits the lake, that the creatures are a fresh water bryozoan named Pectinatella magnifica.