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All Journal Media Mahardhika Community Engagement and Emergence Journal (CEEJ) International Journal of Global Operations Research ABDI MOESTOPO: Jurnal Pengabdian pada Masyarakat Buletin Jalanidhitah Sarva Jivitam Jurnal Impresi Indonesia Jurnal Karya Abdi Masyarakat Economics Development Analysis Journal Jurnal Perikanan
Malau, Albert Gamot
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Public Health Social Sciences Veterinary

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Temporal Dynamics of Phytoplankton in Retention Pond as a Water Source for Striped Catfish (Pangasianodon hypophthalmus) Farming Dhuha, Orbita Roiyan; Hastuti, Yuni Puji; Malau, Albert Gamot
Buletin Jalanidhitah Sarva Jivitam Vol 6, No 1 (2024): Maret 2024
Publisher : POLITEKNIK AHLI USAHA PERIKANAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bjsj.v6i1.13731

Abstract

This comprehensive study investigates the temporal dynamics and ecological aspects of phytoplankton communities in water reservoirs utilized for Pangasius cultivation. Over a six-week observation period, 25 phytoplankton species, including Bacillariophyceae, Chlorophyceae, Cyanophyceae, Euglenophyceae, and Cryptophyceae, were identified. Chlorophyceae displayed the highest species richness, emphasizing the dominance of this group, particularly Chlorella, which remained stable throughout weekly observations. Other taxa, such as Euglenophyceae, exhibited delayed increases in density. The study revealed two crucial groups in the water reservoir: the first, composed of Actinastrum sp., Closterium sp., Staurastrum sp. (Chlorophyceae), Navicula sp., Pleurosigma sp., Schroedaria sp., Surirella sp. (Bacillariophyceae), and the second, more diverse group consisting of Nitzschia sp. (Bacillariophyceae), Cryptomonas sp. (Cryptophyceae), Trachelomonas sp. (Euglenophyceae), Anabaena sp., Merismopedia sp., Phormidium sp. (Cyanophyceae), Ankistrodesmus sp., Chlorella sp., and Crucigenia sp. (Chlorophyceae). Chlorella was consistently present which was observed to interact with various species, fostering a balanced environment for growth and reproduction within its family and across others based on network analysis. Contradictory dynamics emerge in the initial weeks, where the highest species richness (N = 19 species) coincides with a high dominance index (1/D = 0.54). Conversely, the peak diversity index (H’ = 2.04) occurs during the second observation, aligning with a comparable evenness index (J = 0.89). The saprobic index indicates a shift in pollution levels from β-mesosaprobic to α/β-mesosaprobic between the initial and final weeks of observation. Simultaneously, trophic-saprobic index alterations signify an environmental quality transition from polysaprobic to oligosaprobic. This presents contradictory trends, where, based on species richness, the environment is ecologically classified as polluted. However, considering the contribution of non-indicator groups in the formula, the pond conditions shift towards nutrient impoverishment, suggesting potential suitability for aquaculture practices.
The Effect Of Labor Force, Investment, Labor Absorption On Gross Regional Domestic Products Of North Sumatra Province Agriculture Malau, Albert Gamot; Afifuddin, Sya’ad; Rahmanta, Rahmanta; Lubis, Irsad
International Journal of Global Operations Research Vol. 2 No. 4 (2021): International Journal of Global Operations Research (IJGOR), November 2021
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v2i4.114

Abstract

Economic growth can also be interpreted as a process of continuous change towards better conditions in a country/region. The rate of economic growth in the province of North Sumatra has increased. The increase in economic growth is indicated by the value of the Gross Regional Domestic Product (GRDP). The purpose of this study was to analyze the effect of the investment workforce, employment in the agricultural sector on the Gross Regional Domestic Product of North Sumatra Province. This study uses Time Series data with a time span of 2000-2020. Parameters are estimated using the 2 SLS (Two Stage Least Squares) method. Data processing using the Statistical Analysis System (SAS) Program version 9.2. The results of the study explain that (1) the population of North Sumatra is increased by 10 units, it will encourage an increase in the North Sumatran Workforce by 1.84 units per year. An increase in the number of employed by 10 units will increase the labor force in the agricultural sector by 4.4 units, an increase in labor absorption by 10 units has an impact on increasing the labor force by 2.9 units per year, and if the labor force in the agricultural sector last year increased by 10 units, it will increase the labor force in the sector. agriculture by 2.0 units, (2) North Sumatra Regional minimum wage is increased by 10 units it will encourage a decrease in labor absorption by 8.0 units per year. An increase in investment in the agricultural sector by 10 units will have an impact on increasing employment by 0.031 units. An increase in the number of undergraduate education by 10 units has an impact on increasing labor absorption by 19.7 units, for last year's employment in the agricultural sector by 10 units, it will result in an increase in employment in the agricultural sector by 0.3 units, (3) If interest rates are increased by 10 units will reduce investment in the agricultural sector by 9.3197 units. An increase in inflation of 10 units has an impact on an increase in investment of 2,640,178 units per year. An increase in Gross Regional Domestic Product in the agricultural sector by 10 units will have an impact on an increase in investment in the agricultural sector by 160.58 units per year, an increase in the total number of employees working over 15 years of age by 10 units, it will have an impact on an increase in investment in the agricultural sector by 35.96 units, and an increase in investment. last year by 10 units will have an impact on increasing investment by 1.5 units. (4) local taxes are increased by 10 units, it will increase the gross regional domestic product of the agricultural sector by 203.5407 units. The increase in domestic investors by 10 units has an impact on the increase in gross regional domestic product in the agricultural sector of North Sumatra by 0.19 units per year. An increase in foreign investors by 10 units will have an impact on an increase in gross regional domestic product in the agricultural sector by 0.82 units per year. will increase the Gross Regional Domestic Product of the agricultural sector by 6.0 units.
Meningkatkan Keterampilan Wirausaha Bagi Ibu Rumah Tangga Di Desa Sukamaju Kecamatan Sunggal Malau, Albert Gamot; Simanjuntak, Haholongan; Adrianto, Adrianto; Marina, Nisha; Ginting, Kula
Jurnal Karya Abdi Masyarakat Vol. 5 No. 3 (2021): Jurnal Karya Abdi Masyarakat
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (101.716 KB) | DOI: 10.22437/jkam.v5i3.16228

Abstract

Jumlah penduduk di kecamatang sunggal sebanyak 287,600 orang pada tahun 2017. Kecamatan sunggal terdiri dari 17 desa salah satunya adalah desa sukamaju. Desa Suka maju terdiri dari 9.568 orang. Pekerjaan penduduk desa suka maju di dominasi oleh pekeraj pertanian sebanyak 800 orang sedangkan industry rumah tangga hanya 4 oran. Pada pelaksanan pengabdian masyarakat di laksanakan di Desa Sukamaju Kecamatan sunggal. Masyarakat yang mengikuti pelatihan ini adalah masyarakat yang memiliki usaha rumah tangga, yang meliputi sebagai berikut berjualan, menjahit, shalon, jualan online dan lain-lain. Pada pelaksanan pelatihan meliputi pembuatan rencana biaya, pemahaman wirausaha, simulasi keterampilan membuat wirausaha serta perencanaan. Hasil yang diperoleh dari 50 orang masyarakat yang di latih, secara umum sudah memahami prinsif wirausaha, akan teapi masih banyak peserta tidak memahami perincian rencana biaya dan bagaimana menyusun perencanaan usaha.
CONDITIONS OF CAPTURE FISHERIES IN THE COASTAL AREA OF BATAM ISLAND KEPULAUAN RIAU PROVINCE Hendrayana, Angga Sucitra; Sari, T. Ersti Yulika; Malau, Albert Gamot; Brown, Arthur; Panggabean, Donwill; Nazzla, Rauzatul
Jurnal Perikanan Unram Vol 15 No 1 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i1.1375

Abstract

The coastal area of Batam Island have a fairly high potential for capture fisheries and contribute to the community's economy, especially in coastal areas. Capture fisheries businesses must pay attention to economic and ecological sustainability. The purpose of this study is to analyze the sustainability of the capture fisheries business on Batam Island based on bio-economic aspects in order to provide an overview of fisheries business management. The analysis was carried out descriptively through the Gordon-Schaefer model approach with the Gordon logistics growth function. The analysis was carried out on three management conditions, namely Maximum Sustainable Yield (MSY), Maximum Economic Yield (MEY), and Open Access Equilibrium (OAE). The results of the study show that the optimal utilization of capture fisheries in the coastal area of Batam Island is around 7,823 units of fishing vessels every year. The production of catch in the Maximum Sustainable Yield condition is around 36,982 tons, in the the Maximum Economic Yield condition is around 36,977 tons, while in the Open Access Equilibrium condition is only around 1,646 tons.
Pemberdayaan Nelayan Berbasis Komunitas Dalam Pengolahan Produk Perikanan di Kabupten Talaud Hidayah, Zainur; Madya, Faizal; Pujiwati, Ami; Saleha, Eha; Malau, Albert Gamot; Maesaroh, Imas; Basir, Mohammad
ABDI MOESTOPO: Jurnal Pengabdian Pada Masyarakat Vol 8, No 2 (2025): Juli 2025
Publisher : Universitas Prof. Dr. Moestopo (Beragama)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32509/abdimoestopo.v8i2.5318

Abstract

Permasalahan utama yang dihadapi oleh pelaku usaha mikro di wilayah perbatasan Indonesia–Filipina adalah rendahnya produktivitas dan terbatasnya volume penjualan produk olahan, terutama pada sektor perikanan. Menjawab tantangan ini, Universitas Terbuka (UT) bekerja sama dengan Sekolah Tinggi Ilmu Komputer (STIK) Rajawali Talaud dan Pemerintah Kabupaten Kepulauan Talaud melaksanakan program Pengabdian kepada Masyarakat (PkM) yang berfokus pada peningkatan kapasitas produksi dan strategi pemasaran produk lokal. Permasalahan teknis seperti metode kerja yang belum efisien menyebabkan volume produksi masyarakat stagnan pada kisaran 3–5 kg per batch. Melalui program ini, dilakukan perbaikan metode produksi, pelatihan, serta optimalisasi proses kerja, yang mampu mendorong peningkatan kapasitas produksi menjadi 10–15 kg per batch sesuai permintaan pasar. Selain itu, dilakukan intervensi pada aspek pengemasan produk agar lebih menarik dan memenuhi standar distribusi yang lebih luas. Dampak signifikan dari kegiatan ini adalah meningkatnya daya saing produk lokal di pasar luar daerah, bahkan hingga menembus pasar ekspor ke Filipina dan Korea Selatan. Program ini menunjukkan bahwa kolaborasi lintas sektor yang terstruktur mampu mendorong pemberdayaan ekonomi masyarakat secara berkelanjutan di wilayah 3T (terdepan, terluar, tertinggal).
The Impact of MSME’s on Employment, Investment, and Income Malau, Albert Gamot; Mahjus Ekananda
Economics Development Analysis Journal Vol. 14 No. 2 (2025): Economics Development Analysis Journal
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/edaj.v14i2.24026

Abstract

North Sumatra, a key economic region in Indonesia outside of Java, continues to face persistent challenges such as high unemployment, the dominance of the informal sector, and uneven economic growth. Within this context, Micro, Small, and Medium Enterprises (MSMEs) serve as a cornerstone of the regional economy, particularly through their role in labor absorption and income generation. Despite their significance, MSMEs in North Sumatra still face substantial obstacles, including limited access to financing, inconsistent investment growth, and inadequate policy implementation—factors that hinder their full potential in driving inclusive development. This study examines the dynamic relationship between MSME growth, workforce participation, and Gross Regional Domestic Product (GRDP) in North Sumatra, employing a simultaneous equation model with time-series data from 2009 to 2023. The Two-Stage Least Squares (2SLS) method addresses endogeneity and simulates the effects of policy interventions projected for the 2025–2030 period. The findings indicate that MSME development is significantly influenced by policy instruments such as tax incentives and minimum wage regulations. Increases in wages and tax reductions enhance labor absorption, stimulate MSME performance, and promote GRDP growth. The study provides practical policy insights for strengthening the resilience and sustainability of MSMEs within North Sumatra’s evolving economy.
ANALISIS PERAN SEKTOR PERDAGANGAN DALAM OPTIMALISASI PERTUMBUHAN EKONOMI DI KOTA TERNATE Novita, Desi; Malau, Albert Gamot
Media Mahardhika Vol. 24 No. 1 (2025): September 2025
Publisher : STIE Mahardhika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/mahardika.v24i1.1391

Abstract

One of the key indicators reflecting the success of economic development in a region is economic growth. The Gross Regional Domestic Product (GRDP) serves as an essential measure for assessing the expansion of regional economies. Through this data, it becomes possible to identify the economic sectors that contribute most significantly to regional growth. The primary objective of this study is to analyze the role of the trade sector and to explore strategies required to enhance its contribution toward optimizing economic growth in Ternate City, North Maluku Province. The study employs secondary data, specifically the GRDP of Ternate City and North Maluku Province for the period 2015–2024. The research methodology incorporates sectoral contribution analysis to GRDP, the Location Quotient (LQ) method, and Klassen typology analysis. The findings reveal that the trade sector constitutes the largest contributor to Ternate City’s GRDP, with an average share of 25.49 percent over the period 2015–2024. Furthermore, the trade sector, identified as one of the base sectors in Ternate City, demonstrates substantial development potential and is classified within Quadrant I (leading sector) of the Klassen typology. In practice, efforts have been undertaken by both the government and society to optimize economic growth in Ternate City.
Analisis Dampak Penerimaan Pajak Daerah dan Investasi Terhadap Pertumbuhan Ekonomi di Provinsi Kalimantan Timur Lutfi, Bahroni; Safitri, Julia; Malau, Albert Gamot
Community Engagement and Emergence Journal (CEEJ) Vol. 6 No. 5 (2025): Community Engagement & Emergence Journal (CEEJ)
Publisher : Yayasan Riset dan Pengembangan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/ceej.v6i5.9123

Abstract

Pertumbuhan ekonomi dipengaruhi oleh berbagai faktor, seperti penerimaan pajak daerah, investasi, dan pola konsumsi masyarakat. Pajak daerah berfungsi sebagai sumber pendapatan pemerintah untuk membiayai pembangunan, sementara investasi berperan dalam meningkatkan kapasitas produksi dan penciptaan lapangan kerja. Belanja rumah tangga mencerminkan daya beli masyarakat, yang berkontribusi pada siklus ekonomi. Namun, hubungan antara ketiga variabel ini masih kurang diteliti, khususnya dalam konteks Kalimantan Timur, yang memiliki karakteristik ekonomi dan struktur fiskal unik. Penelitian ini bertujuan untuk menganalisis dampak penerimaan pajak daerah dan investasi terhadap pertumbuhan ekonomi serta menguji apakah belanja rumah tangga dapat menjadi mediator dalam hubungan tersebut. Menggunakan metode kuantitatif deskriptif dan data sekunder dari sepuluh kabupaten/kota di Kalimantan Timur periode 2019–2023, analisis dilakukan dengan uji linier berganda dan uji Sobel menggunakan software EViews 13. Hasil penelitian menunjukkan bahwa penerimaan pajak daerah dan investasi berpengaruh terhadap pertumbuhan ekonomi, tetapi efek mediasi belanja rumah tangga menunjukkan pola berbeda. Penerimaan pajak daerah yang dimediasi oleh belanja rumah tangga berdampak negatif terhadap pertumbuhan ekonomi, sementara investasi yang dimediasi oleh belanja rumah tangga berpengaruh positif. Hal ini menyoroti bahwa meskipun pajak daerah menjadi sumber pendapatan pemerintah, beban pajak yang tinggi dapat menghambat konsumsi masyarakat. Sebaliknya, investasi produktif meningkatkan pendapatan, mendorong konsumsi, dan memperkuat ekonomi daerah. Temuan ini memberikan wawasan bagi pembuat kebijakan dalam merancang strategi fiskal dan investasi yang efektif guna mendukung pertumbuhan ekonomi berkelanjutan serta membuka peluang penelitian lebih lanjut terkait hubungan antara investasi, pajak, dan konsumsi dalam skala yang lebih luas.
Clustering dengan Menggunakan K-Means untuk Analisa Dampak Banjir Supriyadi, Sigit; Malau, Albert Gamot
Jurnal Impresi Indonesia Vol. 4 No. 9 (2025): Indonesian Impression Journal (JII)
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v4i9.6998

Abstract

Banjir merupakan bencana yang sering terjadi di Indonesia dan menimbulkan dampak signifikan pada infrastruktur, ekonomi, dan kesehatan masyarakat. Analisis pola dampak banjir diperlukan untuk mendukung perencanaan mitigasi yang efektif. Penelitian ini bertujuan untuk mengelompokkan wilayah terdampak banjir berdasarkan tingkat dampaknya menggunakan algoritma K-Means Clustering. Penelitian menggunakan pendekatan kuantitatif dengan data sekunder dari Badan Nasional Penanggulangan Bencana (BNPB) periode 2019–2024. Sebanyak 150 kejadian banjir dianalisis berdasarkan lima variabel: kedalaman banjir, lama genangan, jumlah korban, kerusakan infrastruktur, dan kerugian ekonomi. Data diproses menggunakan algoritma K-Means untuk membentuk klaster dampak banjir. Analisis berhasil mengidentifikasi tiga klaster utama, yaitu dampak rendah (62 kejadian), dampak sedang (54 kejadian), dan dampak tinggi (34 kejadian). Klaster dampak tinggi ditandai dengan kedalaman banjir rata-rata 150 cm, lama genangan 6,5 hari, dan kerugian ekonomi rata-rata Rp 25 miliar. Kedalaman banjir dan lama genangan terbukti menjadi variabel paling dominan dalam menentukan tingkat dampak. K-Means Clustering efektif untuk memetakan tingkat dampak banjir secara multidimensi. Hasil penelitian dapat menjadi dasar bagi pemerintah dan pemangku kepentingan dalam menyusun kebijakan mitigasi yang tepat sasaran, khususnya dalam mengalokasikan sumber daya untuk wilayah dengan kategori dampak tinggi. Implikasinya, pendekatan ini dapat meningkatkan efektivitas penanggulangan banjir dan mendukung pembangunan berkelanjutan.
Co-Authors Adrianto, Adrianto Afifuddin, Sya’ad Ami Pujiwati Angga Sucitra Hendrayana, Angga Sucitra Arthur Brown Basir, Mohammad Eha Saleha Faizal Madya Haholongan Simanjuntak, Haholongan Hidayah, Zainur Imas Maesaroh Irsad Lubis Kula Ginting Lutfi, Bahroni Mahjus Ekananda Marina, Nisha Nazzla, Rauzatul Orbita Roiyan Dhuha, Orbita Roiyan Panggabean, Donwill Rahmanta Rahmanta, Rahmanta Safitri, Julia Supriyadi, Sigit T. Ersti Yulika Sari Yuni Puji Hastuti