The social platform Facebook group "Our Cheung Chau" uploaded a video, which was shot at East Bay of Cheung Chau on the night of the Mid-Autumn Festival. In the film, thousands of small fishes bouncing along the beach can be seen. Some even jumped onto the beach, watching the moon and playing. Half a hundred citizens of Lantern were excited.
Some people estimated that these fish were rather crude "Yokoze" fish, and they said that they were "don't eat", but the people at the scene ignored them and caught them with bare hands. Some foreigners carried the fish in their clothes and put them in a waterproof bag. .
In the film several times, several boats in the sea are driving by bright light off the beach. It is unknown whether it is related to the small fish stranding. The people present cheered and waved to the boats many times.
Li Guizhen, chairman of the Cheung Chau Women’s Association, said that in the past there were occasional Hengze fish jumping ashore in Cheung Chau, mainly due to the weather. On the beach shore, floating platforms and pier stone steps.
The other reason is that they are affected by the light, the moon is bright during the Mid-Autumn Festival, and the shore is a little gleaming. They love to chase the light and have the opportunity to jump on the shore.
Hengze fish has strong phototaxis
Hengze fish, also known as sardine, has a long fusiform body with flat sides; the body is rounded with scales; the scales have several vertical lines interrupted in the central part, and there are less than 20 small holes on the rear edge of the scales.
The body is silver with a black spot at the beginning of the dorsal fin.
It is a small pelagic fish commonly found along the coast, with a colony migratory habit and strong phototaxis.
Feeds on diatoms and small crustaceans.
Mainly distributed in southern India, the Philippines, Papua New Guinea and the coast of South China.