Papua’s Youtefa Bay Mangroves Face Accelerating Encroachment

The mangrove forests of Youtefa Bay in Papua Province, Indonesia, are in sustained decline, squeezed by commercial development, infrastructure construction, and uncontrolled waste dumping that together degrade a gazetted conservation area. According to the Mongabay Indonesia report, the bay — designated a Taman Wisata Alamcovering 1,657 hectares since 1978, with that status reaffirmed in 1996 — is the ancestral territory of three indigenous communities: Tobati, Enggros, and Nafri. Residents, particularly women, have long relied on the mangrove ecosystem for shellfish, fish, crabs, and shrimp, but now report increasingly turbid, litter-choked conditions that cause skin reactions after foraging.

Quantitative research cited in the article underscores a long-run trajectory of loss. A Cenderawasih University study documented roughly 159 hectares of mangrove deforestation — approximately 40.6 percent of the 1994 total extent — by 2017. A 2025 study from the University of Science and Technology Jayapura found a further approximate 18.76 hectares of vegetative cover lost between 2017 and 2024, concentrated near roads, waterfront settlements, and coastal tourism zones. The regional conservation authority, BBKSDA Papua, recorded an accelerating recent pace: a 7.81-hectare (6.28%) contraction over just two years, from 124.3 hectares in 2022 to 116.49 hectares in 2024. Officials attribute the losses to land conversion, landfilling operations, infrastructure expansion, and unmanaged refuse disposal — including household and medical waste found tangled in mangrove root systems.

Enforcement action in 2023 saw a joint government team move against parties illegally filling mangrove land along Hamadi Road in Jayapura; at least one case had reached P21 statusby 2024. Researchers and conservation officials quoted by Mongabay Indonesia called for stronger protected-area enforcement, limits on coastal construction, active mangrove rehabilitation, and meaningful participation of indigenous communities in conservation governance. A university lecturer also highlighted the ecosystem’s blue carbon sequestration function and its role in moderating local temperatures — both of which diminish as canopy coverage contracts.