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All Journal Jurnal Biologi Tropis Jurnal Ilmiah Profesi Pendidikan
Zulhalifah Zulhalifah
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Distribution and Diversity of Echinoderms in the Coastal Waters of South Beach of Lombok Island Syamsul Bahri; Lalu Raftha Patech; Zulhalifah Zulhalifah; Devi Ayu Septiani; Siswadi Siswadi
Jurnal Biologi Tropis Vol. 21 No. 1 (2021): Januari - April
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.v21i1.2320

Abstract

Echinoderms are benthic animals that can be found in almost all marine ecosystems but are mostly found in the intertidal coastal zone. Echinoderms play an important role as deposit feeders. This study aims to look at the distribution patterns, diversity, and habitat conditions of species in the southern coastal waters of Lombok Island, namely Kute, Awang, and Gerupuk beaches. The field survey was conducted using the quadratic transect method and free collection in October - November 2020. Based on the results of the research, a total of 11 species of echinoderms were found in Lombok Island consisting of 4 classes. Diadema setosum and Tripneusteus gratila were the most common species, whereas Synapta maculate, Holothuria leucospilota, Echinotrix diadema, Holothuria atra, and Ophiocoma scolopendrina were found in small numbers with uniform distribution (Id <1). Diadema setosum distribution pattern has the highest abundance with a clustered distribution pattern (Id> 1) in Awang and Gerupuk, and Tripneusteus gratila in Kute and Awang. The Diversity Index value is different in each habitat. The highest Shannon-Wiener Diversity Index (Hꞌ) was found in Gerupuk 2.18. The largest smoothing index is found at Awang 0.96. The largest Dominance Index (D) is found in Gerupuk 0.88. Based on the value of the Echinoderm community structure on the South Coast of Lombok Island, it shows that diversity is moderate, community uniformity is unstable, and dominance is low. information regarding the distribution and diversity of Echinoderm fauna in various types of habitats around the seagrass as a first step to anticipate the decline in the Echinoderm population in the waters of the South Coast of Lombok Island.
Pengembangan Lembar Kerja Peserta Didik Berbasis Ekosistem Mangrove Sebagai Media Pembelajaran di Wilayah Pesisir Selatan Lombok Timur Zulhalifah Zulhalifah; Agil Al Idrus; Abdul Syukur
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.689

Abstract

Ekologi mangrove memiliki berbagai jasa ekosistem salah satunya dalam aspek pendidikan. Ekologi mangrove dapat dimanfaatkan sebagai pengembangan lembar kerja peserta didik. Tujuan dari penelitian ini untuk mengembangkan lembar kerja peserta didik berbasis ekosistem mangrove sebagai sumber belajar di wilayah pesisir selatan Lombok Timur. Metode pengembangan yang digunakan adalah model pengembangan ADDIE (analysis, design, development, implementation, evaluation). Namun, penelitian ini hanya sampai pada tahap development. Penelitian ini dilakukan dengan mengembangkan lembar kerja peserta didik dengan komponen abiotik dan biotik yang ada dalam ekosistem mangrove. Validasi dilakukan oleh tiga validator yang telah ditentukan. Hasil penelitian menunjukkan bahwa lembar kerja peserta didik yang dikembangkan layak untuk digunakan sebagai media pembelajaran. Hasil analisis validitas pada komponen lembar kerja peserta didik sebesar 0.86% dengan kategori sangat valid. Selain itu, reliabilitas lembar kerja peserta didik >75% dengan kategori reliabel.
Pengembangan Lembar Kerja Peserta Didik Berbasis Ekosistem Mangrove Sebagai Media Pembelajaran di Wilayah Pesisir Selatan Lombok Timur Zulhalifah Zulhalifah; Agil Al Idrus; Abdul Syukur
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.689

Abstract

Ekologi mangrove memiliki berbagai jasa ekosistem salah satunya dalam aspek pendidikan. Ekologi mangrove dapat dimanfaatkan sebagai pengembangan lembar kerja peserta didik. Tujuan dari penelitian ini untuk mengembangkan lembar kerja peserta didik berbasis ekosistem mangrove sebagai sumber belajar di wilayah pesisir selatan Lombok Timur. Metode pengembangan yang digunakan adalah model pengembangan ADDIE (analysis, design, development, implementation, evaluation). Namun, penelitian ini hanya sampai pada tahap development. Penelitian ini dilakukan dengan mengembangkan lembar kerja peserta didik dengan komponen abiotik dan biotik yang ada dalam ekosistem mangrove. Validasi dilakukan oleh tiga validator yang telah ditentukan. Hasil penelitian menunjukkan bahwa lembar kerja peserta didik yang dikembangkan layak untuk digunakan sebagai media pembelajaran. Hasil analisis validitas pada komponen lembar kerja peserta didik sebesar 0.86% dengan kategori sangat valid. Selain itu, reliabilitas lembar kerja peserta didik >75% dengan kategori reliabel.
Carbon Footprint Optimization in The Palm Oil Industry Wike Pratiwi; Zulhalifah Zulhalifah; Norma Juniati
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
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.v26i2.11968

Abstract

This optimization can be done through the application of carbon accounting methods, the use of renewable energy, efficient waste management, and low-emission technology innovation. This study aims to analyze the main sources of greenhouse gas (GHG) emissions and formulate a carbon footprint optimization model in the palm oil industry at PT X. The method used is a descriptive quantitative approach with optimization simulation based on methane capture on liquid waste (POME). The results show that POME is the largest emission contributor (45%), followed by fertilizer (30%), fuel (20%), and electricity (5%). The application of methane capture technology can reduce emissions from 16,400 tons of CO₂e/year to 3,280 tons of CO₂e/year or by 80%. Cost analysis shows a carbon cost of IDR 305,000 per ton of CO₂e and can be reduced to IDR 155,000 per ton of CO₂e with the presence of carbon credits. These results indicate that methane capture is an effective and efficient optimization strategy in reducing carbon emissions in the palm oil industry. In conclusion, the largest source of carbon emissions at PT X comes from POME liquid waste, making it a top priority in the mitigation strategy. The implementation of methane capture has proven effective in reducing emissions by 80%, or 13,120 tons of CO₂e per year.
Co-Authors Abdul Syukur Agil Al Idrus Devi Ayu Septiani Lalu Raftha Patech Norma Juniati Siswadi Siswadi Syamsul Bahri Wike Pratiwi