Muntok merupakan daerah di sisi barat Pulau Bangka yang memiliki potensi perikanan lepas pantai, penambangan, dan peleburan timah. Penambangan dan peleburan timah dapat memengaruhi bakteri selulolitik sebagai salah satu integrasi dalam hutan bakau. Bakteri selulolitik dapat meningkatkan ketersediaan karbohidrat terdekomposisi untuk organisme lain. Pengambilan sampel dilakukan dari 3 lokasi mangrove, yaitu Mangrove Tembelok, Mangrove Peltim, dan Mangrove Sukal. Skrining dan identifikasi kualitatif bakteri selulolitik berasal dari sedimen, kayu lapuk dan serasah daun di hutan bakau Muntok. 54 isolat bakteri diidentifikasi dalam skrining dengan media yang diperkaya CMC 1%. 24 (44,5%) isolat diantaranya memiliki nilai HC tinggi pada indikator Lugol dan 21 (39%) isolat pada indikator congo-red. Mangrove Tembelok memiliki isolat dengan nilai HC tinggi terbanyak pada sampel sedimen, sedangkan Mangrove Peltim pada serasah daun dan Mangrove Sukal pada kayu lapuk. Nilai HC isolat bakteri selulolitik berimbang dengan fungi yang lebih populer dimanfaatkan untuk degradasi selulosa. Isolat bakteri selulolitik berpotensi meningkatkan nilai cerna limbah pertanian untuk mensubstitusi bahan baku pakan ikan herbivora.

Tin mining has left hundreds of ex-mine lake in Muntok Subdistrict, West Bangka Regency, which is both problems and potential to be exploited. Empowerment of the lake for freshwater fish farming can provide alternative livelihood opportunities besides tin mining. The study of the use of the lakes for fish farming aims to determine the purpose of fish farming with its problems and potential. The study was conducted in June - July 2018 with a descriptive qualitative method through a process of interviews and observations during the implementation of the task of fisheries instructor. The object is on three groups who use the lake for fish farming. The lake can be used productively for catfish and catfish culture utilizing the system of the pen culture. The obstacle of using the lake for fish culture is the potential for bioaccumulation of heavy metals, the difficulty of implementing water quality management, and lower productivity compared to artificial ponds. Under cultivation is recommended to choose Clarias commodities in consideration of consumer safety against bioaccumulation of heavy metals.

Abstract. Kurniawan A, Pramono DY, Indrayati A, Hermanto, Triswiyana I. 2020. Short communication: Differences in local perceptions of Osteochilus spilurus (Cyprinidae: Labeoninae) from several islands in Indonesia. Asian J Ethnobiol 3: 79-84. Osteochilus spilurus is native freshwater fish on the islands of Sundaland, Indonesia. No study has been reported on this fish utilization other than in the Belitung Islands, so another local perception of Indonesian island needs to be investigated. Local recreational fishing in Palangkaraya, Pontianak, and Pekanbaru and fishers in Palangkaraya, Eastern and western of  Belitung, Southern and  Central Bangka, and North Lampung were the sources of local knowledge. We obtained data using a Facebook app survey to see local recreational fishers' awareness, interviews with one fisherman in each region, and a literature review for Belitung public perception. There is a different awareness of people from East Belitung to other regions. In East Belitung, knowledge of O. spilurus has a link to the local culture. Fishermen have the most relevant fishing gear expertise for the catch of O. spilurus, based on environmental factors and fish behavior. Large-scale fishing, consuming, and trade of it only takes place in East Belitung. It has an impact on the use of non-environmentally sustainable mesh size nets that threaten their natural survival.

Osteochilus spilurus, which has been known to be of minimal use, is an important economical fish in East Belitung. Public perceptions related to consumption and understanding of these fish need to be known as the community's point of view in utilization and management. This study was conducted to obtain information about people’s perceptions about Cempedik Fish from the citizen and related business actors in Gantung District. Information and data collection techniques in this study were carried out with three kinds of methods, namely, interviews, observation, and discussion. Public perception of Gantung District, Belitung Timur Regency towards Cempedik Fish shows that more than 79% of respondents recognize and consume these fish with the majority of consumption obtained from trade. Season and methods of catching Cempedik fish are understood to be more than 65% of respondents. Most of them assume that the size and number of fish are not changing. But they hope protection and cultivation for the continuity of production. The limited availability of Cempedik Fish products outside the rainy season is a potential for its development as an aquaculture commodity for meeting market demands and the sustainability of populations in their natural habitats.

Produksi perikanan budidaya ikan air tawar di Kecamatan Muntok, Kabupaten Bangka Barat, Provinsi Kepulauan Bangka Belitung semakin berkembang dengan bertambah banyak pelaku usaha budidaya ikan air tawar. Bertambahnya jumlah pembudidaya ikan memerlukan perhatian agar usahanya dapat berkelanjutan. Pada Pokdakan (kelompok pembudidaya ikan) yang telah berproduksi berkesinambungan dan berumur lebih dari 2 tahun, diupayakan untuk ditingkatkan kelembagaannya. Kajian ini bertujuan untuk mendeskripsikan proses peningkatan kelembagaan kelompok pembudidaya ikan di Kabupaten Bangka Barat. Pokdakan “Sinar Menumbing” menjadi salah satu kelompok di kecamatan Muntok yang ditingkatkan kelembagaannya. Kelompok ini meningkat dari kelas pemula menjadi kelas madya pada tahun 2017, membentuk Gapokan (Gabungan Kelompok Perikanan) tahun 2018, dan berbadan hukum pada tahun 2019. Peningkatan kelas kelompok menjadi madya dan legalitas kelembagaannya memberikan pengaruh positif terhadap akses perbankan dan bantuan pemerintah daerah maupun pusat untuk mendukung perkembangan sarana prasarana produksi yang berimbas pada meningkatnya produktivitas kelompok.