Articles
<![CDATA[Impact Evaluation of the Use of Mercury (Hg) and Cyanide (Cn) in Gold Processing Activities on Lombok Island Based on Knowledge and Experience of Gold Miners and Processers on Lombok Island ]]>
<![CDATA[Hilman Ahyadi]]>;
<![CDATA[Suripto Suripto]]>;
<![CDATA[Ahmad Jupri]]>;
<![CDATA[Immy Suci Rohyani]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i3.4468
<![CDATA[The high value and economic prospects of precious metals, have not been able to cover the environmental, health and social and economic impacts. The conversion of land functions and open pit mining activities as well as the amount of sediment waste causes very significant landscape and environmental changes. This study aims to evaluate the impact of using mercury and cyanide based on the knowledge and experience of actors (miners and gold processors) and the surrounding community on the island of Lombok. Field data collection was carried out by triangulation, namely in-depth interviews with actors and the community, and secondary/reference data from related agencies, especially the health center and several related research results. Gold extraction on the island of Lombok uses two methods which are carried out in stages, namely Amalgamation with mercury in the shelling process and Cyanidation with Potassium Cyanide in the bagging process. The results of the study show that the negative impacts of the mining process are more due to land clearing and miner safety. The impact of gold extraction using mercury is long-term, so it is difficult to identify the impact. Meanwhile, the impact of the use of cyanide is directly felt and seen by the public, especially in terms of decreasing the presence and yield of fish caught in rivers and coasts.]]>
<![CDATA[Diversity and Distribution of Gastropoda and Bivalvia in Mangrove Ecosystem of Pelangan, Sekotong, West Lombok ]]>
<![CDATA[Dining Aidil Candri]]>;
<![CDATA[M. Subandi Rahmani]]>;
<![CDATA[Hilman Ahyadi]]>;
<![CDATA[Yuliadi Zamroni]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i3.1413
<![CDATA[One group of invertebrates that live in the mangrove ecosystem is Mollusks of mainly Gastropods and Bivalves. They are associated with mangrove as life, shelter, spawning, and also as a place to get food to support the growth them. The purpose of this reaserch was to look at the effect of mangrove species and substrate type on the distribution Mollusks (Gastropods and Bivalves) in the mangrove ecosystem of Pelangan Village, district of Sekotong, west Lombok regency. This type of reaserch is descriptive explorative. Sampling was done by purposive sampling method with determine tree species, size, and substrate. Repeatation held six times each mangrove species. The results showed that there are 25 speciesd of mollusk in mangrove ecosystem, the most abundant species of gastropod in mangrove species is Clypeomorus moniliferus with a value of 6.9 ind / m2 contained in Osbornia octodonta. As for the distribution of each species of gastropods and bivalves are not affected by the mangrove species, but is influenced by environmental factors which in this case is a substrate.]]>
<![CDATA[Conditions of Aquatic Biodiversity Around the Port of Pototano, District of West Sumbawa ]]>
<![CDATA[Ahmad Jupri]]>;
<![CDATA[Hilman Ahyadi]]>;
<![CDATA[Rachmawati Noviana Rahayu]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v23i1.4812
<![CDATA[Pototano Harbor is one of the locations that crosses a potential marine conservation area, namely the Gili Balu Marine Tourism Park Area.The use of the Pototano port location as a port location has long existed before the formation of the waters area of the Gili Balu water tourism park. This area consists of eight groups of islands which are characterized by beautiful beaches, hills, mangrove forest areas and also the beauty of underwater ecosystems. Natural conditions that support abundant biodiversity make this area have several ecosystems in the aquatic environment, including coral reefs, sea grasses and mangroves. This study aims to determine the condition of the biodiversity of the surrounding watersPototano Port and Core ZoneGili Balu Tourism Park Areanamely Gili Belang, Gili Paserang and Gili Namuby increasing knowledge and human resources regarding water area management. This area has both positive and negative values.The results showed that the highest level of diversity in coral reef ecosystems and seagrass ecosystems was found in the Core Zone of TWP Gili Balu, namely Gili Belang with 86% and 80.8% coverage.The diversity of mangrove species in the four locations is relatively the same, but the abundance or individual density of each species is relatively different.Conditionwaters in the research location classifieddry waters and under normal conditions or not pollutedbecause it has an abundance of plankton communitiesas big 62,33 Eng/L with the most common type is Thalassionema frauenfeldii and Chaetoceros tortissimus.]]>
<![CDATA[The Effectiveness of CO2 Absorption Between Phytoplankton and Seagrass Beds in The West Sekotong Intertidal Zone of Lombok Island ]]>
<![CDATA[Sri Puji Astuti]]>;
<![CDATA[Ika Puspita Dewi]]>;
<![CDATA[Siti Rosidah]]>;
<![CDATA[Sari Novida]]>;
<![CDATA[Eka S Prasedya]]>;
<![CDATA[Dining A Candri]]>;
<![CDATA[Hilman Ahyadi]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v23i2.4769
<![CDATA[The increasing sea surface temperature could be approved CO2 levels on the coast. It has been assumed the primary productivity in the intertidal zone was to absorb CO2 from the water column for photosynthesis. In addition, the substrate floor has a potential source of CO2 from decomposers. Phytoplankton and seagrasses are the primary productivity in the intertidal zone. Both of them have chlorophyll, they maintain the CO2 as a carbon source to move the photosynthetic systems to develop the metabolism of the body's cells. The measurements were made of the leaves and rhizomes of all the seagrass species. The absorption process was clarified by measuring the growth rate, percent LOI, and percent carbon in the whole body of the Tetraselmis sp and Dunaliella sp, which were phytoplankton species isolated from seagrass ecosystems. Enhalus acoroides (Ea) had the highest carbon content. On the other hand, Halophila ovalis and Halophila minor are the lowest carbon due to the distribution of Ea being the widest, they were found in all of the sampling areas. In addition, the factor that was supported was due to its high growth rate ability. Phytoplankton and seagrass on the coast of Sekotong Barat absorb CO2 in the water column and floor of the sediment (carbon sink). The presence of a different increase in carbon content between Tetrasemis sp and Dunaliella sp indicates, the species of phytoplankton respond differently to CO2 stress in the ocean.]]>
<![CDATA[Length and Weight Relationship of Mackerel Fish (Auxis rochei) at Fish Collector Markets in Ampenan, Lombok ]]>
<![CDATA[Ulya Nisa Afifa]]>;
<![CDATA[Dining Aidil Candri]]>;
<![CDATA[AA Ngurah Nara Kusuma]]>;
<![CDATA[Hilman Ahyadi]]>;
<![CDATA[Yuliadi Zamroni]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v23i4.5343
<![CDATA[Lisong tuna (Auxis rochei) is one of high economic potential value of fish because of its abundance and often found in the fish market in Ampenan. Evaluating the impact of fishing to the growth pattern of length-weight of tuna is needed to ensure the sustainability of lisong tuna population. It is feared that the high intensity of tuna (A. rochei) fishing can cause growth disturbances and a decrease in local tuna populations. This study aimed to determine the relationship between the weight and length of lisong tuna (A. rochei) to their growth patterns in the fish market of Ampenan. Thirty individuals of lisong tuna were collected from two fish markets, Bintaro and Kebon Roek, in Ampenan. The equation of Linear Allometric Model is used to evaluate the length and weight relationship in growth patterns of lisong tuna. This study resulted in the positive allometric growth pattern of lisong tuna with slope value more than 3 (b=3.79). It indicated that the lisong tuna which were collected in Bintaro and Kebon Roek markets have a weight growth rate faster than their length growth rate. It means that the lisong tuna sold in Ampenan markets is quite fleshy and has a good growth rate.]]>
<![CDATA[Condition of Coral Diversity in Kuta Mandalika Coastal, Central Lombok Regency ]]>
<![CDATA[Dining Aidil Candri]]>;
<![CDATA[Bagus Hakimi]]>;
<![CDATA[Hilman Ahyadi]]>;
<![CDATA[I Wayan Suana]]>;
<![CDATA[Eka Sunarwidhi Prasedya]]>;
<![CDATA[Kartini Ambarwati]]>;
<![CDATA[Aina Ul Mardiati]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v23i2.5627
<![CDATA[Development and operational activities in KEK Mandalika can increase sedimentation of waters caused by erosion of construction material activities, this have an impact on coral reef ecosystems. Coral reef ecosystems have several important roles in support life of various aquatic organisms, Damage to the coral reef ecosystem directly and indirectly, sooner or later will threaten the sustainability of the use of these resources (social economy) and the safety of the community. Observations were conducted in KEK Mandalika coastal at 6 observation points less than 10 m. The results showed that the highest percentage of live coral cover was found in Kuta Mandalika coastal at PIT 4 area (30%, damaged category, moderate status). While the lowest percentage of coverage was at PIT 5, which was 2% (damaged category, bad status). Overall the percentage of coral cover in the Kuta Mandalika area is included in the damaged category. One of the reasons is because at the lowest tide on the beach, the volume of water is very small so that many hard corals are exposed to solar radiation. This limits the types of hard corals that can grow in the intertidal zone of Mandalika coastal. Genus diversity at this location is low, ranging from 0.0782 to 0.1288. Several genera of the Nephtheidae family dominate the observation sites and form colonies of the same genus with a fairly large distribution. The average value of environmental parameter measurements in the Mandalika coastal is included in the good category for soft coral habitat and growth.]]>
<![CDATA[the Ethnoecological Study of Local Community Food in Supporting the Development of Culinary Ecotourism in the Sekotong Region, West Lombok ]]>
<![CDATA[Immy Suci Rohyani]]>;
<![CDATA[Ahmad Jupri]]>;
<![CDATA[Supardiono Supardiono]]>;
<![CDATA[Hilman Ahyadi]]>;
<![CDATA[Isrowati]]>;
<![CDATA[Reda]]>;
<![CDATA[Kurniawan Adi Saputra]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v10i4.6113
<![CDATA[Combining the concept of ecotourism with culinary delights based on local food resources in coastal communities in West Lombok district is one form of appropriate development strategy that will make the West Lombok district region have its own development characteristics leading to sustainable tourism and tourism support which will become the concept of future tourism development. This research examines in more depth the ethnoecological aspects of coastal communities, especially regarding local food. Through this research, data will be obtained regarding the diversity of local food types in coastal communities, mapping community wisdom in processing and utilizing local food. Local community interactions and perceptions of local food diversity. The type of research used is descriptive exploratory with research techniques in the form of exploration. The sampling techniques used in the research were purpose sampling and snowball sampling. Research data collection uses several techniques, including random observation to obtain qualitative and quantitative data on local food typical of the island of Lombok, which uses an open questionnaire targeting local communities according to predetermined criteria. The research results show that coastal communities have more food resources originating from marine resources, both fish and non-fish, these food resources are still protected because most people still harvest the results using simple equipment. There are around 11 types of processed food as a family practice. Tuna fish has the highest ICS (Index of Cultural Significance) value while mackerel fish has the highest variety of uses. Shrimp is the fish group that has the highest ICS value, while cassava leaves have the highest ICS value for the vegetable group. The local wisdom of the community which originates from their ancestors in order to protect their environmental resources is still maintained today.]]>
<![CDATA[Analysis of Residential Well Water Quality Around People's Gold Mines in the Tourist Area of Dusun Selindungan ]]>
<![CDATA[Rachmawati Noviana Rahayu]]>;
<![CDATA[Suripto]]>;
<![CDATA[Hilman Ahyadi]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol 10 No 7 (2024): July ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v10i7.8200
<![CDATA[The Sekotong area has natural charm and potential mining. This area is one of the preferred destinations for visits by local and foreign tourists. However, apart from that, the Sekotong area is also famous as a community gold mining area. Mining activities carried out still use traditional methods, which are very far from environmentally friendly principles, so they can have impacts, including causing a decrease in the quality of residential well water. This research was conducted to determine the water quality of residential wells around community gold mining in the tourist area of Dusun Selindungan Eleven well water samples were taken using a purposive sampling method based on the distance of the well to the source of gold mining waste disposal and are still used by residents to meet their daily needs. Physical, chemical and biological water quality parameters of water samples were investigated in the laboratory, except temperature and pH were measured directly in the field. Data for each water quality variable was analyzed to determine the pollution index. The results show that DO, TDS, content of phosphate, E. Coli bacteria and total coliforms in well water from the study area generally exceed quality standardsWell water in an area that is a different distance from the people's gold mining waste disposal site has each been contaminated with manganese and mercury, although it is still below quality standards.]]>
<![CDATA[Pemanfaatan Limbah Sayuran Menjadi Pupuk Organik Cair (POC) di Desa Paok Pampang, Sukamulia, Lombok Timur ]]>
<![CDATA[Ahmad Jupri]]>;
<![CDATA[Nurmala Handayani]]>;
<![CDATA[Lalu Ahmad Fikri Zainuri]]>;
<![CDATA[Fadli]]>;
<![CDATA[Tapaul Rozi]]>;
<![CDATA[Eka Sunarwidi P]]>;
<![CDATA[Hilman Ahyadi]]>
<![CDATA[ Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 2 (2024): April-Juni ]]>
Publisher : <![CDATA[Universitas Mataram ]]>
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<![CDATA[Salah satu masalah yang dihadapi oleh petani adalah sulit mendapatkan sebuah pupuk subsidi dari pemerintah, baik dari segi pemerataan distribusi sampai jumlah yang diberikan tidak sesuai dengan luas lahan pertanian. Sementara dari segi manfaat pupuk subsidi hanya memberikan manfaat tidak terlalu berkepanjangan, karena sering menggunakan pupuk kimia membuat kualitas tanah berubah dari yang sebenarnya, apabila terlalu sering menggunakan atau terlalu banyak menggunakan pupuk berbahan kimia membuat kerusakan tanah pada lahan yang bisa mengakibatkan berkurangnya produktifitas dari sektor pertanian. Pengabdian ini bertujuan untuk memberikan pemanfaatan limbah sayuran menjadi pupuk organik cair (POC) di desa paok pampang, sukamulia, lombok timur. Berdasarkan permasalahan diatas, penulis menemukan beberapa metode dan teknologi yang dirangkum dalam program KKN antara lain pendataan, observasi dan praktik dengan tujuan memberikan solusi atas permasalahan yang ada.]]>
<![CDATA[Mie Kelor (Moringa Olefiera) Simaiq Peningkatan Gizi Anak Resiko Stunting Desa Paok Pampang Kecamatan Sukamulia Kabupaten Lombok Timur ]]>
<![CDATA[Ahmad Jupri]]>;
<![CDATA[Nurmala Handayani]]>;
<![CDATA[Lalu Ahmad Fikri Zainuri]]>;
<![CDATA[Fadli]]>;
<![CDATA[Tapaul Rozi]]>;
<![CDATA[Eka Sunarwidi P]]>;
<![CDATA[Hilman Ahyadi]]>
<![CDATA[ Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 2 (2024): April-Juni ]]>
Publisher : <![CDATA[Universitas Mataram ]]>
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DOI: 10.29303/jpmpi.v7i2.8020
<![CDATA[Desa Paok Pampang merupakan desa pemekaran dari Desa Dasan Lekong pada tahun 2010. Desa ini terletak di Kecamatan Sukamulia, Kabupaten Lombok Timur, Nusa Tenggara Barat. Desa Paok Pampang memiliki potensi dan komoditas unggulan yaitu berupa pertanian, perkebunan dan perternakan yang menjadi sumber mata pencaharian masyarakat setempat. Potensi yang dimiliki dalam bidang pertanian. Hamparan sawah yang luas serta kreatifitas masyarakat desa dalam memilih bahan tanaman menjadi modal besar untuk kemajuan pertanian Desa Paok Pampang. Desa paok pampang juga menjadi salah satu desa dengan Tingkat stunting yang tinggi terhirung sebanyak 90 anak yang dikategorikan resiko stunting oleh para kader posyandu pada masing-masing dusun.oleh karena itu maka inovasi mie kelor sebagai salah satu alternatif bagi para ibu-ibu maupun kader posyandu dalam peningkatan gizi para anak yang mengalami resiko stunting karena dilihat juga dari prekonomian Masyarakat yang masih dikategorikan kurang mampu dan tanaman kelor menjadi tanaman yang bisa dikategorikan semua warga menanam dipekarangan rumah dan dimanfaatkan daunnya sebagai campuran pada olahan mie kelor yang kaya akan gizi. Tujuan penelitian ini adalah (1) agar Masyarakat dapat mengolah daun kelor menjadi makanan yangkaya akan gizi (2) Masyarakat dapat memanfaatkan tanaman daun kelor menjadi olahan yang memiliki dayaguna dan daya jual yang tinggi jika diolah dengan benar dan dikreasikan.]]>
