Commercial fish farm encroaches on government land, deemed ecological threat

A commercial fish farm in Hong Kong's Northern Metropolis development is operating on government land without authorization. A green group has raised concerns that materials used at the site pose an ecological threat to the nearby Mai Po Nature Reserve and Inner Deep Bay wetlands. These wetlands are recognized internationally under the Ramsar Convention for their importance as a migratory bird habitat. Some of the fish ponds are also located within the proposed Sam Po Shue Wetland Conservation Park. The article highlights the encroachment and potential environmental risks associated with these artificial ponds.