Garuda - Garba Rujukan Digital

Utilization of natural stimulants on crab survival and molting acceleration: progresses and challenges Akbar, Said Ali; Nuzlia, Cut; Afriani, Sari; Zulfahmi, Ilham
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.39271

This study investigates the potential of natural stimulants, specifically ecdysteroids, in accelerating the molting process in mangrove crabs. The research was conducted by analyzing various plants containing ecdysterone and their effects on the crabs. The results indicate that forest fern leaves and mulberry leaves are effective sources of ecdysterone in stimulating molting and growth in crabs. The use of such natural stimulants has the potential to enhance productivity and reduce reliance on synthetic hormones in crab cultivation. However, further research is needed to determine the optimal dosage and to understand the mechanisms of ecdysterone action in crabs in more detail. The main challenge in implementation is adjusting the dosage and frequency of natural stimulant administration to achieve optimal results without disrupting the balance of the cultivation ecosystem. This approach offers an environmentally friendly alternative for the sustainable development of crab farming.

Microplastics in sediment of Indonesia waters : A systematic review of occurrence, monitoring and potential environmental risks Akbar, Said Ali; Afriani, Sari; Nuzlia, Cut; Nazlia, Suraiya; Agustina, Sri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.34596

Microplastics, or plastic particles smaller than 5 mm, are a growing ecotoxicological problem for both human health and aquatic habitats. Even though microplastic pollution affects the air, water, and land widely, these habitats are often viewed as distinct from one another while in fact they are tightly related. The purpose of this work is to review the body of scientific literature on microplastic studies in Indonesian watershed sediment. Google Scholar has identified around 57 papers about microplastic pollution that were published between 2017 and 2023. Papers about sediment for rivers, lakes, marine, and estuaries are categorized further based on (i) their occurrence and characterization, (ii) their intake by and effects on species, and (iii) their fate and transport issues. Even at low concentrations of 10 g/mL, microplastics cause harmful effects for people and animals, including cytotoxicity, immunological response, oxidative stress, barrier characteristics, and genotoxicity. When marine animals eat microplastics, their gastrointestinal tract physiology changes, and they also experience immune system depression, oxidative stress, cytotoxicity, differential gene expression, and growth inhibition. In addition, the bioaccumulation of microplastics in aquatic creatures' tissues may harm the aquatic ecosystem and may spread to people and birds. Through behavioural changes and policy changes, such imposing taxes, bans, or price increases on plastic carrier bags, plastic usage has been dramatically decreased to 885% in many different nations across the globe. The strategy for minimizing microplastics is structured like an upside-down pyramid: prevention is at the top, then reduction, reuse, recycling, recovery, and, as the least desirable alternative, disposal.Keywords:MicroplasticsSedimentIndonesia WatersEnvironmental RiskPollutant Aquatic

Utilization of natural stimulants on crab survival and molting acceleration: progresses and challenges Akbar, Said Ali; Nuzlia, Cut; Afriani, Sari; Zulfahmi, Ilham
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.39271

This study investigates the potential of natural stimulants, specifically ecdysteroids, in accelerating the molting process in mangrove crabs. The research was conducted by analyzing various plants containing ecdysterone and their effects on the crabs. The results indicate that forest fern leaves and mulberry leaves are effective sources of ecdysterone in stimulating molting and growth in crabs. The use of such natural stimulants has the potential to enhance productivity and reduce reliance on synthetic hormones in crab cultivation. However, further research is needed to determine the optimal dosage and to understand the mechanisms of ecdysterone action in crabs in more detail. The main challenge in implementation is adjusting the dosage and frequency of natural stimulant administration to achieve optimal results without disrupting the balance of the cultivation ecosystem. This approach offers an environmentally friendly alternative for the sustainable development of crab farming.

Microplastics in sediment of Indonesia waters : A systematic review of occurrence, monitoring and potential environmental risks Akbar, Said Ali; Afriani, Sari; Nuzlia, Cut; Nazlia, Suraiya; Agustina, Sri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.34596

Microplastics, or plastic particles smaller than 5 mm, are a growing ecotoxicological problem for both human health and aquatic habitats. Even though microplastic pollution affects the air, water, and land widely, these habitats are often viewed as distinct from one another while in fact they are tightly related. The purpose of this work is to review the body of scientific literature on microplastic studies in Indonesian watershed sediment. Google Scholar has identified around 57 papers about microplastic pollution that were published between 2017 and 2023. Papers about sediment for rivers, lakes, marine, and estuaries are categorized further based on (i) their occurrence and characterization, (ii) their intake by and effects on species, and (iii) their fate and transport issues. Even at low concentrations of 10 g/mL, microplastics cause harmful effects for people and animals, including cytotoxicity, immunological response, oxidative stress, barrier characteristics, and genotoxicity. When marine animals eat microplastics, their gastrointestinal tract physiology changes, and they also experience immune system depression, oxidative stress, cytotoxicity, differential gene expression, and growth inhibition. In addition, the bioaccumulation of microplastics in aquatic creatures' tissues may harm the aquatic ecosystem and may spread to people and birds. Through behavioural changes and policy changes, such imposing taxes, bans, or price increases on plastic carrier bags, plastic usage has been dramatically decreased to 885% in many different nations across the globe. The strategy for minimizing microplastics is structured like an upside-down pyramid: prevention is at the top, then reduction, reuse, recycling, recovery, and, as the least desirable alternative, disposal.Keywords:MicroplasticsSedimentIndonesia WatersEnvironmental RiskPollutant Aquatic

The Profile of Student Analytical Skills through Hypothetical Learning Trajectory on Colligative Properties Lesson Akbar, Said Ali; Hasby, Hasby
Jurnal Ilmiah Peuradeun Vol. 7 No. 3 (2019): Jurnal Ilmiah Peuradeun
Publisher : SCAD Independent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26811/peuradeun.v7i3.307

Students often have difficulty in understanding chemistry lessons, especially Colligative Properties. Teachers should have systematic learning plans so that students understand the content of learning well. Hypothetical Learning Trajectory (HLT) is effective to be used in the learning process because it becomes an idea in designing detailed learning paths. Besides that, learning outcomes can be achieved well and optimally. This study uses qualitative and quantitative approaches. Data processing is carried out based on four assessment criteria. First, student responses that appear based on response predictions, second, student ability test scores, third, analysis of learning activities, and finally science process skills (SPS). The results showed that the didactic presented by the teacher as a student learning path was good enough. Only 12% of student responses are beyond predictions. Furthermore, student SPS through the use of HLT shows that classification and communication skills have a high value, respectively 82% and 81%. Meanwhile, based on Piaget's approach, students' conceptual abilities are better (56%), compared to other abilities. Therefore, the application of HLT to the material of colligative properties towards students is very good.

STUDY ON THE EFFECTIVENESS OF BANANA STEM PITH (Musa paradisiaca) AS A NATURAL ANESTHETIC IN THE WET TRANSPORTATION OF WHITE SEABASS (Lates calcarifer) JUVENILE Akbar, Said Ali; Pulungan, Asifah Dinda Pratiwi; Dewi, Cut Dara; Gunawan, Gunawan; Perdana, Adli Waliul
JURNAL AKUAKULTURA Vol 9, No 2 (2025): JURNAL AKUAKULTURA UNIVERSITAS TEUKU UMAR
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/ja.v9i2.11666

Live fish transportation can induce physiological stress, characterized by increased blood glucose levels and decreased survival rates. This study aims to evaluate the effectiveness of banana pseudostem extract (Musa paradisiaca) as a natural anesthetic for the wet transport of Asian seabass (Lates calcarifer) fry. Observed parameters include induction time, sedative time, blood glucose levels, fish survival, and water quality. The results showed that treatment P3 exhibited the best balance, with an induction time of 10.5 minutes, sedative time of 7 minutes, blood glucose levels of 140 mg/dL, and a survival rate of 90%. Increased ammonia levels were observed after transport, particularly in P5 (0.034 mg/L), while P3 had a lower NH₃ level (0.010 mg/L), indicating better water conditions. Banana pseudostem extract was proven effective as a natural anesthetic in reducing fish stress during transport, with P3 as the optimal treatment.

Identifikasi Dan Prevalensi Ektoparasit Pada Udang Vaname (Litopenaeus vannamei) Di Perairan Kota Banda Aceh Akbar, Said Ali; Fhariza, Dasrimal; Melanie, Kavinta
Pena Akuatika : Jurnal Ilmiah Perikanan dan Kelautan Vol. 24 No. 1 (2025): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/penaakuatika.v24i1.5147

Penelitian ini bertujuan untuk mengidentifikasi jenis ektoparasit dan menghitung prevalensi serta intensitas infeksi pada udang vaname (Litopenaeus vannamei) di tambak Desa Alue Naga dan Desa Deah Raya, Banda Aceh. Sampel diambil dari dua lokasi dengan total 28 ekor udang yang diperiksa. Zoothamnium sp., Vorticella sp., dan Epistylis sp. adalah ektoparasit yang ditemukan dengan prevalensi tertinggi sebesar 100% untuk Vorticella sp. dan Epistylis sp. di Desa Alue Naga. Intensitas infeksi tertinggi tercatat pada Vorticella sp. di bagian ekor dengan rata-rata 443 individu per ekor. Kualitas air, termasuk suhu, pH, dan salinitas, berada dalam batas normal dengan suhu 32°C, pH 6,25-6,86, dan salinitas 22-42 ppt, mendukung kondisi budidaya udang vaname. Hasil penelitian ini menunjukkan perlunya pengelolaan penyakit yang efektif dalam budidaya udang vaname.

Ability to Interpret Graphs in Reaction Rate Material Based on Mathematical Understanding and Learning Style of Class XI High School Students Rezki*, Maulidia; Hasan, Muhammad; Evendi, Evendi; Akbar, Said Ali; Zaura, Bintang; Khwaengmek, Wipavadee
Jurnal Pendidikan Sains Indonesia Vol 12, No 2 (2024): APRIL 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v12i2.37757

One aspect of process science skills that learners need to have is the ability to interpret. The ability to interpret graphs in students is currently considered difficult and still belongs to the very low category. This study aims to analyze the relationship between mathematical understanding and the learning styles of students in terms of their ability to interpret graphs. This type of research is descriptive-quantitative. The research sample consisted of class XI students at SMA Negeri 4 Takengon, which amounted to 67 students. The research data was collected using learning style-type questionnaires, multiple-choice questions on linear program material, and reaction rate material. The ability to interpret the graphs of students at SMA Negeri 4 Takengon is on the "medium" criterion, while the students' mathematical understanding is on the "very high" criterion. Students with visual learning style types are more dominant and have an average score of mathematical understanding and the ability to interpret graphs higher than students with auditorial and kinesthetic learning styles. The result of the correlation coefficient r = 0.912 shows a significant positive relationship between mathematical understanding and the ability to interpret graphs with a "high" and unidirectional interpretation

Pemberdayaan Ibu PKK Gampong Neuheun melalui Diversifikasi Olahan Perikanan Produk Frozen Food Akbar, Said Ali; Afriani, Sari; Nuzlia, Cut; Pradana, Hengki
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 5 No. 6 (2025): November 2025 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/altifani.v5i6.958

Kegiatan pengabdian ini bertujuan meningkatkan keterampilan dan semangat wirausaha ibu-ibu PKK Gampong Neuheun melalui pelatihan diversifikasi olahan perikanan berbasis produk frozen food, yaitu dimsum ikan dan nugget ikan. Metode pelatihan mencakup demonstrasi, praktik langsung, serta evaluasi pretest-posttest untuk menilai peningkatan pengetahuan dan keterampilan. Hasil kegiatan menunjukkan peningkatan signifikan pada pemahaman higienitas, teknik pembekuan, dan kemampuan pengemasan, dengan skor rata-rata peserta meningkat dari 65% menjadi 89%. Produk hasil pelatihan dinilai baik berdasarkan uji sensoris panelis lokal. Kegiatan ini berkontribusi pada peningkatan kapasitas ekonomi rumah tangga dan mendukung pencapaian Tujuan Pembangunan Berkelanjutan (SDGs) ke-8: Pekerjaan Layak dan Pertumbuhan Ekonomi.

Inovasi Produk Sabun Cuci Tangan Cair dan Sabun Kertas dari Garam Laut sebagai Upaya Peningkatan Kesehatan dan Mendukung Kewirausahaan Octavina, Chitra; Nurfadillah, Nurfadillah; Fachri, Rania Feranita; Akbar, Said Ali; Arisa, Iko Imelda; Dewiyanti, Irma; Ulfah, Maria
Parta: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 2 (2025)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/parta.v6i2.7030

Hand hygiene is a simple thing that is often overlooked, especially in schools located in coastal areas with limited sanitation facilities. This community service activity aims to introduce innovations in the production of liquid hand soap and sea salt-based paper soap as an effort to improve health and empower the local economy. The implementation methods include education, demonstrations of production, and direct training for community partners. This service was carried out at Banda Aceh State Elementary School 61 from July to September 2025. The training produced 30 L of liquid soap and 1000 sheets of paper soap; by the end of the session, 75% of participants completed all production steps correctly (checklist). Entrepreneurial outputs included a student–teacher sanitation team and two product mock-ups with basic costing (estimated unit cost Rp 12.000 per 500 mL vs market price Rp 18.000). These results indicate technical feasibility and school-based micro-enterprise potential. For sustainability, the school committed to monthly in-house production led by the sanitation team and integrating the activity into UKS to secure continuous supply and ongoing skill transfer.

Title

Found 20 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 20 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 20 Documents
Search