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All Journal Jurnal Ilmu Pertanian Indonesia ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Pasir Laut Management of Aquatic Resources Journal (Maquares) BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Journal of Degraded and Mining Lands Management Indonesian Journal of Chemical Science Omni-Akuatika Journal of Aquaculture and Fish Health Life Science Makara Journal of Technology Life Science
Max Rudolf Muskananfola
Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan Dan Ilmu Kelautan, Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mechanical Engineering Veterinary

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Journal : BIOTROPIA - The Southeast Asian Journal of Tropical Biology

 1 
Existing Conditions of Gastropod Communities in Areas Affected by Nickel Mining Overburden in the Mangrove Ecosystem of Dawi-Dawi, Southeast Sulawesi Fajar Purnama, Muhammad; Prayitno, Slamet Budi; Muskananfola, Max Rudolf; Suryanti, Suryanti
BIOTROPIA Vol. 31 No. 2 (2024): BIOTROPIA Vol. 31 No. 2 August 2024
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2024.31.2.2175

Abstract

ARTICLE HIGLIGHTS- Nickel mining activities significantly impacted the ecological integrity of the Pomalaa coastal area in Southeast Sulawesi, particularly in the mangrove ecosystem.- The exposure of overburden waste in the mangrove ecosystem has led to the loss of important gastropod species and a decline in population of surviving species- The low population of gastropod species in nickel mining impact areas indicates extensive environmental damage caused by these activities.ABSTRACTGastropod resources in the Dawi-Dawi mangrove ecosystem, Southeast Sulawesi are greatly influenced by the input of overburden waste (sediment) from nickel mining activities. This condition has been going on for the last 2 decades and has degraded the habitat and structure of the gastropod community. The upstream connectivity (the existing nickel mining area) and the Dawi-Dawi River estuary mean that the mangrove forest (estuary) in this area is continuously affected by (massive) overburden runoff. This research was carried out in June-August in the mangrove ecosystem of Dawi-Dawi Village, Southeast Sulawesi Province. This research aims to determine the existing condition of mangrove gastropods affected by overburden. This research began by conducting initial observations in the field, to identify mangrove ecosystems affected by overburden. research stations were determined using a purposive sampling technique (targeted) and sampling gastropods using a simple random sampling method. The ecological index of the mangrove gastropod community affected by overburden shows a tendency for a medium diversity index (H'=1.81), low species richness (R=1.42), high evenness (E=1.12), and no dominance of certain species (C=0.19). The gastropod species found are typical types that make up the mangrove fauna, namely Terebralia sulcata, Terebralia palustris, Faunus ater, Telescopium telescopium, Hebra nigra, and several taxa (genus) of climbing Littoraria snails (periwinkle) which are found in the roots, stems and leaves of mangroves. The abundance of gastropods obtained was also very low, namely around 0-12 Ind./m2. At some points (rarely) schools of small snails of the type T. sulcata (5-21 Ind./m2) are sometimes found. This research shows de facto that overburden waste eliminates (survival) or reduces the diversity and richness of gastropod species (ecological index) in the mangrove ecosystem of Dawi-Dawi.
EXISTING CONDITION OF GASTROPODS COMMUNITY IN COASTAL AREAS AFFECTED BY NICKEL OVERBURDEN IN POMALAA DISTRICT, SOUTHEAST SULAWESI PROVINCE, INDONESIA Purnama, Muhammad; Prayitno, Slamet Budi; Muskananfola, Max Rudolf; Suryanti, Suryanti
BIOTROPIA Vol. 32 No. 1 (2025): BIOTROPIA Vol. 32 No. 1 April 2025
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2025.32.1.2416

Abstract

ARTICLE HIGHLIGHT             The present investigation provides substantiated empirical evidence demonstrating that nickel extraction operations have exerted considerable detrimental effects on the ecological integrity of the Pomalaa coastal region in Southeast Sulawesi. Environmental degradation and disruption of ecological equilibrium have been observed as direct consequences of persistent overburden waste disposal. The introduction of mining overburden into the Pomalaa coastal ecosystem has resulted in the extirpation of critical gastropod taxa and significant population reductions among persisting species when compared with control sites featuring undisturbed substrate conditions. The documented diminished gastropod population densities within nickel mining-affected zones serve as biological indicators of profound environmental deterioration attributable to these industrial activities. ABSTRACT Pomalaa District is the largest existing nickel mining center in Southeast Sulawesi Province, Indonesia. Pollutants from various anthropogenic activities, especially nickel mining overburden, end up in the Pomalaa coastal area. This research aimed to determine the structure of the gastropods community in the impacted area and reference site. This research was carried out in the Pomalaa coastal area, Kolaka Regency, from June to October 2023. Research stations were determined using purposive sampling method and simple random sampling techniques. On-site collecting gastropods samples were carried out manually (handpicking method). Impacted area and reference site showed significant differences in the number of species (16 and 21 species), presence, and density of gastropods, even though their respective ecological index categories were relatively the same (H' = 1.92 & 2.72; R =  2.93 & 3.41; E  = 0.55 & 0.78; C = 0.001 & 0.04). In the impacted area, the density of gastropods was very low (1 - 3 ind./m2), whereas at the reference site, the density reached 10 - 30 ind./m2. Gastropods inhabiting rocks or hard substrates, were relatively unaffected by the overburden, proven by stable population with a high density of 45 - 115 ind./m2. Nickel overburden input flowing to the Pomalaa coastal area greatly influenced the gastropods community in terms of species composition and density. On the other hand, the habitat (substrate) of gastropods as benthic organisms was covered and degraded by overburden piles up to 15 - 30 cm deep, which  was still increasing over time. On the other hand, in the reference site area, the condition was inversely proportional.
Co-Authors - Djuwito - Ruswahyuni - Subiyanto - Supriharyono A'in, Churun A’in, Churun Abiyoga, Reinaldi Adira Rizka Andaris, Adira Rizka Afwa, Rainuy Saninzita Agung Pamuji agung Suryanto Agus Hartoko Amalo, Nancy Marcelina Reinatha Amanina, Farha Tsabita Andri Okfan, Andri Anggoro, Sutrsino Anhar Solichin Aninditia Sabdaningsih Arif Rahman Arif Rahman Arofah, Rizka Ummi Ayu Istiqomah, Ayu Bambang Sulardiono Boedi Hendrarto Cahyo, Tri Nur Carleone de Prima, Carleone Chrysalina Indrastuti Churun A’in Delahoya, Christian Devi Kristi Purba Dewi Meynita, Dewi Dharmaningtyas, Nimas Diah Ayuningrum, Diah Dominig, Amryta Dwi Yulianto Dyah Prajna Swayati, Dyah Prajna Erzad, Avisha Fauziah Etty Silviana Wahyuningrum, Etty Silviana Eugene Ramarta da Linne Fadhilah Maharani Fajrin, Fadhilah Maharani Fajar Purnama, Muhammad Febbrianna, Vida Febrianto, Sigit Frida Aprilia Loinenak, Frida Aprilia Frida Purwanti Gultom, Christine Rosaline Haeruddin Haeruddin Haikal, Faqilliansi Hapsari, Rania Widia Hikmah, Nur Hikmah Hutami, Ganjar Hesti Indraswari Putri Khaeksi, Indraswari Putri Ittok Rochmad Choirudin Janisa Ferril Indriyastuti Kharisma Aji Winarto Kresnasari, Dewi Lakastri, Lavia Legina Lourenta Siregar Lestari, Abid Luthfieana Mentari, Luthfieana Marhana, Tasya Merlia Purnama Putri Millatia, Zulfa Mohamad Haekal Muchtar Yulianto Muhammad Fajar Purnama Muhammad Zainuri Mulia Delvi, Betlin Indriani Mulyaningsih, Dwi Mustofa Niti Supardjo Niniek Widyorini Nisak, Yuyun Khoirun Norma Afiati Nugroho, Adhi Nur Kharimah Oktaviana, Clarisa Ika Oktavianto Eko Jati Pinasthi, Laili Salma Prabowo, Danar Pratiwi, Galuh Alia Pujiono Wahyu Purnomo Purba, Chris Antoni P Purnama, Muhammad Rella Nur Taqwa Retnoayu Budiasih, Retnoayu Rizal Akbar Hutagalung, Rizal Akbar Rizki Pramuditya Kurniatama, Rizki Pramuditya Romadhony, Muchammad Yusuf Rudhi Pribadi Sahala Hutabarat Sefanya Roswaty Siahaan, Donal Sihombing, Yuni Harvesty Simanjuntak, Siska Lestari Sinulingga, Hiskia Arapenta Siti Rudiyanti Siti Widya Arfiatin Slamet Budi Prayitno Sofiyani, Risna Gina Sri Sedjati Supriharyono Supriharyono Suryanti Taufani, Wiwiet Teguh Viki Darusman Wahyu Permana Aji Wiarta, Rinto Widiyasari, Laurentina Kiki Wiwi Siti Rohmah, Wiwi Siti Yuliana, Eka Yulfa Yusty Amelia Zulistiana Mufaidah, Zulistiana