Kyodo News Agency reported on August 17 that a large amount of oil was floating in mangroves along the coast of the Indian Ocean island country of Mauritius due to a heavy oil spill from a Japanese cargo ship, making it difficult to remove the oil. Dead fish and eels were also found around the site, known as the “treasure house of biodiversity.”. Environmental groups are warning that there may be long-term impacts on ecosystems. According to the report, < / P > < p > around the scene of the incident, many tree roots protruded from the sea and the leaves were luxuriant. The sea was still covered with thick black brown heavy oil. Images of mangroves taken by local residents show oil spilling into the intricate coastal areas. < / P > < p > “the forest is located in a closed area and it is difficult for people to enter.” The expert group of Japan’s international emergency assistance team, which was active in the local area, held an online press conference on the 14th, talking about the difficulty of oil pollution removal, and also said that “if the oil pollution treatment agent is used, it may have an impact on mangroves”, and thinks that there is no effective decontamination method. The report also quoted an environmental group, the Mauritian Wildlife Fund, as saying that mangroves also appeared to have been damaged in areas designated by the Ramsar Convention on Wetlands of international importance (also known as the Convention on Wetlands of international importance, especially as Waterfowl Habitat) for the protection of wetlands of international importance. It is understood that in the unique mangrove forests in tropical and subtropical regions, a variety of organisms gather and form a complex ecosystem. Due to deforestation and so on, forests around the world have been reduced, and conservation activities are also being carried out in Mauritius. < / P > < p > Photos of dead fish and eels in the shallows have been released by local media in Mauritius. The Wildlife Fund said it also found a dead waterbird. It is argued that the impact on the ecosystem has emerged. < / P > < p > the staff of the fund are capturing endangered native lizards as much as possible and transferring them to safe places, but the damage is extensive and time-consuming. However, fund officials said that “it may take decades for the natural environment to recover.”. < p > < p > on July 25 local time, a Japanese iron ore bulk carrier ran into a reef off the coast of Mauritius, an Indian Ocean island country. Since August 6, a large area of oil leakage occurred. Subsequently, Mauritius declared an “environmental emergency”. 9 days later, at about 4:30 p.m. local time on August 15, the Japanese cargo ship involved in the incident broke into two pieces and sank slowly. There was still about 50 cubic meters of fuel oil in the stern. On the same day, the Mauritian national crisis committee issued a statement saying that by noon on the 15th, the Maoist government and the people had recovered about 814 tons of leaked waste oil, 318 tons of oil sludge and pollutants, and the government had also recovered 250 cubic meters of privately made oil containment booms that had absorbed the oil leakage. In addition, the Ministry of blue economy, marine resources, fisheries and shipping of Mauritius also issued a circular on the same day, urging and calling on the relevant parties who suffered losses in the oil spill to claim compensation from Japanese shipowners and their insurance companies.