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All Journal Jurnal Biologi Universitas Andalas Biota Jurnal Biosense
Alponsin
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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EKSISTENSI MAKROZOOBENTOS DI PERAIRAN KAWASAN PEMBANGKIT LISTRIK TENAGA UAP (PLTU) TELUK SIRIH : Makrozoobentos Merina, Gusna; Junialdi, Rezi; Sari, Mistia; Mursyid, Ahmad; Alponsin; Aryzegovina, Reffi
JURNAL BIOSENSE Vol 8 No 2 (2025): Edisi April 2025
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas PGRI Banyuwangi, Jalan Ikan Tongkol No 01, Telp (0333) 421593, 428592 Banyuwangi 68416

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/biosense.v8i2.5092

Abstract

Operasional dari PLTU ini akan memberikan dampak terhadap kualitas air disekitarnya. Salah satunya gangguan biota air. Dengan adanya pembongkaran batu bara di laut sebagai bahan bakar dan juga adanya pembuangan air bahang ke laut, kegiatan ini tentunya berdampak terhadap makrozoobentos. Penelitian ini bertujuan untuk menganalisa kualitas air berdasarkan eksistensi komunitas makrozoobentos dan menganalisa factor fisika kimia air. Penelitian ini menggunakan metode survey dan pengkoleksian langsung. Lokasi pengambilan sampel terdiri dari 2 titik sampel yaitu di inlet dan outlet PLTU Teluk Sirih dengan 3 kali ulangan pada masing-masing stasiun. Hasil penelitian ditemukan makrozoobentos sebanyak 16 jenis terdiri dari jenis Bivalvia, 7 jenis Gastropoda, 2 jenis Malacostraca, dan 6 jenis masuk dari kelas Polychaeta. Kepadatan populasi bentos pada outlet adalah 429 ind/m2 sedangkan kepadatan pada inlet adalah 528 ind/m2. Indeks keanekaragaman pada titik outlet yaitu 2,815 dan inlet adalah 2,727. Berdasarkan indeks keanekaragaman makrozoobentos, maka kondisi perairan Teluk Sirih dalam kondisi baik dan stabil. Berdasrkan indeks kemerataan menunjukan makrozoobentos tersebar merata dengan nilai mendekati 1, dan indeks dominansi mendekati nol, artinya tidak ada makrozoobentos yang mendominasi. Kualitas air seperti kecerahan dan Total suspense Solid (TSS) menunjukan kualitas air bersih dan jernih, suhu didapatkan 24,6 dan 24,7oC, pH berkisar dari 7,76-8,18, Salinitas 19,2 ‰ dan Total Organik Karbon (TOK) 62,5-62,6 mg/L.
A Rapid Assessment: Insect Diversity Around the Stingless Bee Colony in Edufarm Universitas Andalas Ilmi, Miftahul; Henny Herwina; Dahelmi; Alponsin; Jasmi; Rusdimansyah
Jurnal Biologi Universitas Andalas Vol 13 No 01 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.13.01.29-35.2025

Abstract

Insects dominate the animal kingdom, comprising nearly 80% of all animal species, with around 250,000 species found in Indonesia. Among these, stingless bees are a diverse group with over 60 genera. Some stingless bees are cultivated in meliponiculture, practiced around homes and plantations. This study aimed to assess insect diversity near stingless bee colonies in the Education Farm (Edufarm), Universitas Andalas, through a rapid assessment conducted over two days in May 2024. A transect was established with three U-shaped sub-transects surrounding a stingless bee colony. The modify quadra protocol sampling (honey bait traps, leaf litter, soil cores, and hand collecting) was used around the colony. The study identified 1153 individuals from 6 orders, 9 families, and 15 species of insects, with Formicidae from Hymenoptera being the most dominant. This research offers valuable insights into insect diversity around stingless bee colonies at Edufarm and can inform better management strategies for stingless bees and the ecological structure of surrounding environments.
The Potential Utilization of Non-Productive Sugar Palm (Arenga pinnata Merr.) Trunks for Pulp and Bioenergy Applications Rahmadani, Silmi Yusri; Alponsin; Dimas Surya Pratama; Tesri Maideliza
Biota Vol 12 No 1 (2026): Jurnal Biota 2026
Publisher : Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/biota.v12i1.27559

Abstract

The sugar palm (Arenga pinnata Merr.) has considerable potential as a biomass resource and as a raw material for pulp production. In West Sumatra, particularly in the Tanah Datar and Lima Puluh Kota regencies, cultivation areas cover approximately 376.75 ha and 285.00 ha, respectively. Although sap extraction for palm sugar and bioethanol remains the primary use, non-productive trunks are largely underutilized. This study evaluated the physical and chemical properties of these trunks, focusing on fiber dimensions, chemical composition, and calorific value. Trunks from Lima Puluh Kota exhibited longer fibers (2.70–2.97 mm), higher felting power (90.33), and favorable Runkel ratios, resulting in a Class I fiber quality rating for pulp production. In contrast, samples from Tanah Datar were classified as Class II. The trunks also showed cellulose contents ranging from 35.21% to 64.63% and moderate lignin levels (8.02–18.40%), both of which are advantageous for pulping. However, the calorific values (2,675–3,374 cal/g) were below national and international standards for biomass fuels. Overall, these findings suggest that non-productive sugar palm trunks are better suited for pulp and paper applications than for bioenergy production. Optimizing their use could support circular economy development while increasing value for local communities.
Co-Authors Dahelmi Dimas Surya Pratama Gusna Merina, Gusna Henny Herwina Jasmi Junialdi, Rezi Miftahul Ilmi, Miftahul Mistia Sari Mursyid, Ahmad Rahmadani, Silmi Yusri Reffi Aryzegovina Rusdimansyah Tesri Maideliza