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The Structure of Bivalvian Community in The Coast of Elak Elak Beach, West Sekotong, West Lombok, West Nusa Tenggara As An Enrichment of Invertebrate Animal Material for Senior High School Students Inda Wahyuni; Didik Santoso; I Putu Artayasa
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3905

Abstract

Elak elak beach has a sea and a coast with a substrate texture that is very suitable as a habitat for Mollusca including bivalves. Bivalves have many roles for the environment, especially in providing food for various other species in the food chain and can be used to determine water quality. This study aims to determine the community structure and distribution pattern of bivalves in Elak Elak Beach and to see student responses to booklets. The method used in this research is the line transect and quadratic method. The results of the study of the bivalves class molluscs found in the Elak Elak Coastal Coast consisted of 11 species belonging to 7 families. The species consists of Anadara gubernaculum, Anadara granosa, Gafrarium dispar, Glycymeris pectunculus, Liconcha ornata, Lucinoma heroica, Mactra grandis, Mactra nitida, Mactra ornata, Donax faba and Trachycardium flavum. The relative abundance reaches 40% where the highest abundance of bivalves is species Mactra grandis with a relative abundance value of 39.39%. The categories of diversity (H') are medium and uniformity (E) is high, and inversely proportional to the dominance value (C) is low. The structure of the bivalves community based on abundance, diversity, uniformity and dominance that has been studied shows the condition of the West Sekotong Elak Elak Beach, West Lombok district, it can be concluded that the community structure is still in normal condition. The distribution pattern of Bivalves on Elak Elak Beach, West Sekotong is divided into 2 types, namely there are uniform and clustered which are seen based on the calculated value of the Morisita dispersion index. Students' responses to booklets are that students respond very well and students are also very positive in responding to booklets as material enrichment about invertebrate animals for senior high school students.
Test of Mercury (Hg) Content in Mozambique Tilapia Fish (Oreochromis Mossambicus) from Lake Rawa Taliwang Nature Tourism Park, West Sumbawa Regency Hadiatullah; Khairuddin; Didik Santoso
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.4563

Abstract

Rawa Taliwang Lake Natural Tourism Park is a freshwater waters located in West Sumbawa Regency with an area of ​​819.20 ha. Rawa Taliwang Lake Natural Tourism Park is dominated by various types of fish, so that local people catch fish in this lake to meet their consumption needs and for sale. In addition, the lake's catchment area also holds mining potential, especially gold. Small-scale gold mining, mostly found in the mountains and hills around catchment area Lake Rawa Taliwang. This mining uses liquid mercury as a gold binder from the ore. Some waste that has an impact on the end of lake water so that it can affect the lake ecosystem. Therefore, research is needed to determine the amount of mercury (Hg) in tilapia mozambique fish (Oreochromis mossambicus) from Rawa Taliwang Lake Natural Tourism Park. This study uses a quantitative descriptive method. In this study, sampling was carried out by purposive sampling at 3 location points with 3 repetitions. The research sample used 9 tilapia Mozambique fish. The data obtained were analyzed using the Atomic Absorption Spectrophotometry (AAS) method. The results showed that the mercury content in tilapia mozambique fish was < 0.001 ppm. So it can be said that in the flesh of tilapia fish no heavy metal mercury (Hg) was detected.
Efektifitas LKPD Terintegrasi Nilai Ekologi Lamun Berbasis Inkuiri Terbimbing untuk Meningkatkan Literasi Sains Siswa SMP Pesisir Selatan Lombok Timur Kumala Ratna Dewi; Abdul Syukur; Didik Santoso
Jurnal Ilmiah Profesi Pendidikan Vol. 7 No. 2c (2022): Juni
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v7i2c.687

Abstract

Literasi sains adalah kebutuhan yang menjadi tujuan penting dari proses pembelajaran, dimana kompetensi ilmiah siswa dapat menghasilkan produk inovasi dari hasil belajar. Penelitian ini bertujuan untuk mengetahui nilai kevalidan pengembangan LKPD terintegrasi nilai ekologi lamun berbasis inkuiri terbimbing yang layak digunakan untuk meningkatkan kemampuan literasi sains siswa SMP. Metode penelitian yang digunakan adalah metode preexperimental desain one group pretest posttest. Analisis validitas menggunakan rumus Aiken’s, uji efektifitas menggunakana uji N-Gain. Hasil penelitian menunjukkan, nilai validasi LKPD sebesar 0,78 dengan kategori layak, rata-rata validasi perangkat terdiri dari silabus, RPP dan Instumen sal literasi sains sebesar 0,82 dengan kategori sangat layak,Persentase efektifitas peningkatan literasi sains sebesar 59, 12 % dengan kategori cukup efektif , skor N-Gain sebesar 0,89 kategori tinggi. Kesimpulannya pengembangan LKPD terintegrasi nilai ekologi lamun berbasis inkuiri terbimbing layak untuk digunanakan dan signifikan terhadap kemampuan literasi siswa khususnya di wilayah pesisir selatan Lombok Timur.
Community Structure and Carbon Content of Mangroves in the Tanjung Batu Sekotong Area in the Middle of West Lombok Novia Indra Anggraini; Didik Santoso; I Gde Mertha
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.4851

Abstract

The purpose of this research was to determine the community structure and the amount of carbon content and mangrove uptake in the Tanjung Batu Sekotong area, Central Lombok, West Lombok. This type of research is descriptive research. This research was conducted in the Tanjung Batu Sekotong area, Central Lombok, West Lombok. The variables observed were individual mangrove species, mangrove height and trunk diameter at breast height. Then the data obtained were analyzed for density, frequency, cover area, important value index, diversity index, biomass and carbon content. Collecting data on mangrove plant communities used a combined method, namely line and square transects. The research results obtained found 6 species, namely Avicennia alba, Avicennia marina, Rhizophora Apiculata, Rhizophora mucronata, Rhizophora stylosa, and Sonneratia alba. Carbon content and carbon absorption of mangroves in the Tanjung Batu Sekotong Tengah Region, West Lombok. The total carbon content of the tree category is 34.4246 tons C/ha, an average of 5.7374 tons C/ha and the sapling category with a total of 14.4312 tons C/ha, an average of 4.1232 tons C/ha. Mangrove carbon uptake in the tree category with a total of 126.3381 tons C/ha, an average of 21.0564 tons C/ha and mangrove absorption in the sapling category with a total of 52.9625 tons C/ha, an average of 8.8271 tons C/ha.
Diversity of Grasshopper in The Rice Fields of Kalijaga Village, East Lombok Siti Nurul Inayah; Mohammad Liwa Ilhamdi; Didik Santoso
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i3.5261

Abstract

Grasshoppers are the main herbivorous insects in the ecosystem, grasshoppers also act as pests, as predators, decomposers of organic matter and carrion eaters. To maintain the ecosystem of rice fields, grasshoppers have a very importants role in maintaining its stability. The research aimed to determine the level of diversity, evenness and dominance of grasshopper species in the rice fields of Kalijaga village. The kinds of this research was done by catching the grasshopper by using sweeping net. The location was taken in five location around Kalijaga such as west, east, north and middle location. The data was taken in nine times repeating for three month. The data was taken in the morning around 08.00-11.00 and afternoon 15.00-17.00 o’clock. The data analysis was used ecology index that include Shanon-Winner (H’), Evennes index (E’) and Simpson domination index (D). Based on data analysis was gotten that (1) there were 1,957 total of diversity index or include medium categories, (2) there were 0,816 the total number of grasshopper species of evenness index or include medium categories (3) there were 0,178 total number domination index of species with low categories.
Carbon Content Potential of Mangrove Species in Gili Sulat, East Lombok Ainun Diniyatushoaliha; Agil Al Idrus; Didik Santoso
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i3.5275

Abstract

Mangroves are a unique ecosystem because they live in two transition zones, always green, and tolerant of salt. However, globally it is under serious threat due to environmental issues that are closely related to deforestation and degradation of mangrove forests. Mangrove ecological services as a carbon sink can help mitigate climate change and global warming. This capability has not been utilized optimally, especially in NTB, specifically Gili Sulat, which has natural mangrove forests. Therefore, this research aims to identify, explain, describe, and understand the carbon content of trees in mangrove species in Gili Sulat. The station determination method is done by purposive sampling. The sampling technique for carbon content was carried out using a non-destructive method, namely measuring the diameter at breast height and tree height. The results of the study found nine mangrove species in the tree category where the highest potential carbon content was found in the species Bruguiera gymnorrhiza, namely 0.285 ton C/ha and 183.255 ton C/643 ha, and the lowest was found in the species Exoecaria agallocha, namely 0.010 ton C/ha and 6.430 ton C/643 Ha. Meanwhile, the total biomass, carbon content, and carbon dioxide absorption of mangrove species in Gili Sulat were 661.004 tonnes/643ha, 331.145 tonnes C/643 ha, and 1212.698 tonnes CO2/643 ha respectively. The high potential carbon content of mangrove tree species in Gili Sulat proves that the ecological services of Gili Sulat's mangroves have a positive impact on climate change mitigation and global warming.
Analisis Kebermanfaatan Program Kampus Mengajar Mahasiswa Program Studi Pendidikan Biologi FKIP Universitas Mataram Aulia Maulidina; Dadi Setiadi; Didik Santoso
Jurnal Ilmiah Profesi Pendidikan Vol. 8 No. 3 (2023): Agustus
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v8i3.1535

Abstract

Salah satu upaya yang dilakukan pemerintah untuk meningkatkan kompetensi lulusan adalah dengan mengeluarkan kebijakan MBKM. Diantara 8 program dalam kebijakan MBKM, mahasiswa Program Studi Pendidikan Biologi paling banyak menaruh minat pada program kampus mengajar. Program Kampus Mengajar merupakan intrepretasi dari kebijakan MBKM yang memberikan kesempatan kepada mahasiswa untuk meningkatkan kompetensinya melalui asistensi mengajar di satuan pendidikan dasar. Tujuan penelitian ini adalah mendeskripsikan kebermanfaatan program kampus mengajar bagi mahasiswa Program Studi Pendidikan Biologi. Jenis penelitian ini adalah deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data menggunakan angket, wawancara, dan studi dokumen. Adapun sampel dalam penelitian ini diambil menggunakan teknik purposive sampling, yaitu mahasiswa Program Studi pendidikan Biologi FKIP, Universitas Mataram yang telah mengikuti program kampus mengajar angkatan 3 dan 4. Hasil penelitian menunjukkan bahwa kebermanfaatan program kampus mengajar pada mahasiswa Program Studi Pendidikan Biologi berupa peningkatan kompetensi dari segi sikap yaitu peningkatan etika kolaborasi, kepekaan social dan kemampuan komunikasi; peningkatan kompetensi keterampilan khusus terjadi dari segi jiwa kepemimpinan dan kreativitas; peningkatan kompetensi keterampilan umum pada mahasisiwa terjadi dari segi kemampuan mengambil keputusan dan kemampuan memelihara jaringan; dan peningkatan kompetensi pengetahuan terjadi dari segi pedagogi, dimana mahasiswa mengetahui bagaimana mengelola kelas dengan baik.
The Structure of Mangrove Community in The Waters of Pare Mas Jerowaru East Lombok Nindi Hamida Lutfiani; Agil Al Idrus; Didik Santoso
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5624

Abstract

Mangrove communities grow well in the tropics and are able to adapt to extreme environments, such as: high temperature, high salinity, extreme tides, high sedimentation, and oxygen-poor growing substrate conditions. Information about mangrove ecology is very important to provide an overview of the current condition of mangroves. The aim of this research is to determine the structure of the mangrove community in Pare Mas Jerowaru, East Lombok. This research used a purposive sampling method and a combination of line and quadrat transects. The research results obtained 3 types of mangroves in Pare Mas waters. The diversity index value is in the low category and the dominance index value is medium to high. The species Rhizophora apiculata had the highest frequency value (0.57 ind/m²) and the lowest was Avicennia marina (0.10 ind/m²). Density at the tree level is in the sparse category, while at the pole, sapling and seedling level it is in the medium to very dense category. The types of mangroves that have the highest cover values in the tree, pole and stake categories are Sonneratia alba and Rhizophora apiculata. The highest INP values in the categories of trees, poles, saplings and seedlings were 272.99% (Sonneratia alba), 173.58% (Sonneratia alba), 215.51% (Rhizophora apiculata) and 200.00% (Rhizophora apiculata).
Diversity of Orchids in Tahura Nuraksa Central Lombok as Enrichment of Biodiversity Subject Dita Anggraini Safitri Sipayung; Didik Santoso; Lalu Japa
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.5771

Abstract

This study was done to determine the diversity of orchid species, population structure (abundance, diversity, dominance and distribution patterns) of orchids found in the Tahura Nuraksa and to make a booklet as enrichment of biodiversity courses. The research was conducted at the Tahura Nuraksa Resort, Kalipalang, Central Lombok. The method used in this study was descriptive exploratory by determining the location of observation using purposive sampling method and sampling by using non-destructive and exploratory methods. The results showed that there were 544 individuals from 18 species of orchid . An abundance of orchids of 1% was in the low category, and the dominance of orchids is 0,15% which means that there was a dominant species of orchids, namely Spathoglottis plicata. The orchids diversity index was 2.25 (medium category) and the distribution pattern of orchids in the study sites was generally uniform. The booklet is declared worthy of being an enrichment for study of biodiversity.
Macrofauna Diversity of Molluscs (Gastropoda and Polecypoda) Associated with Mangrove in the Coastal Area of South Cemara Sheet Beach, West Lombok Karima Paspania; Abdul Syukur; Didik Santoso
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5436

Abstract

Cedar Beach is a tourist attraction with a unique mangrove forest, opened in 2015 by the Maritime Affairs and Fisheries Service together with the South Sheet Village. Macro fauna is a group of large animals that live in the soil or water and have an important role in improving the physical, chemical and biological properties of the surrounding environment. Research on the diversity of molluscs (Gastropoda and Polecypoda) was conducted to determine the type, diversity, and relationship between Molluscs (Gastropoda and Polecypoda) and Mangrove. The number of individual Gastropods and Polecypods found in the mangrove area of the Cypress Beach is 9 species of Gastropods and 4 species of Polecypods. Diversity of Gastropods found in the mangrove area of Pantai Cemara was 1,009 in the moderate category, 0,405 in the diversity of Polecypoda was found in the low category, and mangrove diversity was categorized as moderate. The correlation between the diversity of Gastropods, Polecypoda and mangrove diversity is not significant because the environmental parameter value is salinity at the study site above 35 ppm which has a negative impact on mangroves due to negative osmotic pressure.