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All Journal Aceh Journal of Animal Science Pro-Life JURNAL IQRAÂ´ BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Nazhruna: Jurnal Pendidikan Islam EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Pembelajaran dan Biologi Nukleus Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences International Journal Of Science, Technology & Management (IJSTM) Bioscientist : Jurnal Ilmiah Biologi International Journal of Educational Research and Social Sciences (IJERSC) International Journal of Science and Environment Jurnal Pendidikan Islam

Arman Harahap

Universitas Labuhanbatu, Sumatera Utara, Indonesia

Author-ID : 3896204

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Keragaman Plankton di Sungai Nurhasanah Ritonga; Arman Harahap
BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Vol 5 No 1 (2022): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

This study aims to determine plankton diversity in the Aek Pala River, Labuhanbatu Regency. The method used is descriptive observative. Sampling was done by filtering 10 L of water using a plankton net. The results showed that there were 15 genera of plankton in Aek Pala waters, including 10 types of phytoplankton and 5 types of zooplankton. The most abundant diversity of phytoplankton species found was in the class Chlorophyceae, which was 75% (7 species). In contrast, the highest diversity of zooplankton species is from the class Crustacea (3 species). In addition, the physical and chemical parameters of the waters show that Aek Pala waters are very good for supporting plankton life. In conclusion, the diversity of plankton species obtained included phytoplankton (classes Chlorophyceae, Bacillariophyceae and Dinophyceae) and zooplankton (classes Crustacea and Rotifera). The abundance of plankton found categorizes that the river waters have moderate fertility. Keywords: Diversity, Plankton, Zooplankton, Phytoplankton and Aek Pala River

Kajian Kualitas Air Sungai Nurma Ani; Arman Harahap
BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Vol 5 No 1 (2022): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

This study aims to determine the water quality of the Aek Pala River in Labuhanbatu Regency. The method used is a survey method with qualitative and quantitative analysis. The results showed that the water of the Aek Pala River was slightly cloudy, odorless and had a TDS level of 164.60 mg/l, pH = 6.85; BOD = 9.08; COD = 20.78; phosphate < 0.003 mg/l; nitrate = 3.04 mg/l; total Coliform = 9.17 CFU/100 ml; and E. coli = 0.03 CFU/100 ml. In conclusion, the physical, chemical and microbiological parameters of the Aek Pala River water are still in the safe category in meeting drinking water quality standards and are worthy of being used as a bathing tourist attraction for people around Labuhanbatu and other areas. Keywords: BOD, COD, E. coli, Water Quality, Nitrate, pH, Phosphate, Aek Pala River, TDS, Total Coliform

Effect of Total Suspension on Macrozoobenthos in the Aek Pala River Fahrur Rozy Siregar; Arman Harahap
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 5, No 3 (2022): Budapest International Research and Critics Institute August
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v5i3.6116

The Aek Pala River is a water used by the surrounding community for various activities. In addition to fishing activities by the local community, the Aek Pala river is also a natural tourist spot that causes turbidity from suspended solids. This situation affects biodiversity, especially macrozooebenthos in these waters. Macrozooebenthos is a group of animals that live on the bottom of the waters and are often found living in association with other organisms. This study aims to determineeffect of total suspended solids on macrozoobenthos in the Aek Pala river. The sampling technique in this study used a purposive random sampling technique, while the research used a descriptive method. The results showed that the total suspended solids content in the waters of the Aek Pala . riverranged from 105.20 mg/l -135.15 mg/l. The largest value was found at station IV amounting to 135.15 mg/l, while the lowest value was at station II amounting to 105.20 mg/l. There are 5 types of macrozoobenthos found in the Aek Pala river, namely zooplankton, bivalves, annelids, crustaceans and gastropods. The results of the calculation of the community structure of various types of macrozooebenthos were found in the form of calculation results, namely the highest diversity index (H') was at station III amounting to 0.7035, the highest uniformity index (e) was at station III amounting to 0.437, dominance index (C ) is the highest at station I amounting to 0.766, andrelative abundance index (KR),the highest is at station I amounting to31,650.

How Universities Entrust Digital Literacy to Improve Student Learning Outcomes During the COVID-19 Disruption Abd. Basir; Kamaliah Kamaliah; Arman Harahap; Ahmad Fauzi; Budi Karyanto
Jurnal Iqra' : Kajian Ilmu Pendidikan Vol. 6 No. 1 (2021): Jurnal Iqra' : Kajian Ilmu Pendidikan
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/ji.v6i1.1146

Since the policy of sending students home to study as a result of responding to the dangers of the pandemic, universities around the world have increasingly trusted distance learning solutions. The solution was to rely on digital literacy to continue and improve student learning outcomes during the COVID-19 disruption. For this reason, the researchers have proven it through analytical efforts and in-depth studies in several international publications. In short, the researchers examined each piece of evidence with a phenomenological approach to get answers to research questions that are among other things, involve a data coding system, critical evaluation, and drawing of valid and reliable final results. The data discussion concludes that world universities believe that digital technology that was increasingly trending can become a learning innovation even though the world will continue to hit global education. Hence, the researchers hope that these findings should support other studies in the future. Keywords: Digital Literacy, Learning Outcomes, Entrust Digital Literacy

Diversity Of Makrozoobenthos As Bioindicators Of The Quality Of The River Aek Kanan Arman Harahap
International Journal of Science, Technology & Management Vol. 2 No. 3 (2021): May 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i3.741

The waters of Kanan is the waters are very widespread in , this area is densely populated, so there are many community activities that take place such as Transportation, Fisheries, Bathing, sand Mining and other.The purpose of this study is to determine the role of macrozoobenthos as a bioindicator of water quality in the waters of Kanan Tapanuli Selatan , as well as determine the quality of water in the flow of the waters Kanan physical properties, chemical has. The research was conducted from November 2019 to February 2019, the samples taken from the three research stations. From the results obtained Macrozoobenthos in the identification in this study consisted of 3 Phyla of invertebrates namely : Annelids, which consists of 2 classes, Arthropods consisting of 1 class and Molusca, which consists of 1 class. Based on the data of macrozoobenthos obtained at each research station, then the obtained value of population density, relative density and frequency of presence of that at station I the value of its highest density is Tubifex sp. with the value of the density of the population of 18,519 individual/m2, the density is relatively 25,862% and the frequency of the presence of 55,555%. off at 3. at station 2 the highest density is Tubifex sp. with the value of the density of the population of 18,519 individuals/m2, relative density 25,862% and a frequency of 55,555%. also note that the total score obtained by the method storet, namely -30, this shows that if connected with the raw water quality of class I is then classified in the waters of class III, which means that light polluted. The high total score method storet on the entire research station due to the presence of a variety of activities at each of the stations, settlements, sand mining and other activities. Where these activities produce waste, which in the end increases the content of Phosfat, COD, TSS and BOD5, thus causing the waters of the Waters of Kanan is light polluted.

Analysis Of The Density Of Coliform Bacteria As An Indicator Of Pollutant In The River Aek Katia Labuhan Batu District Arman Harahap; Bitondo Dieudonne; Harahap, P
International Journal of Science and Environment (IJSE) Vol. 2 No. 1 (2022): February 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.589 KB)

Coliform bacteria is a one of a kind negative bacteria commonly found in the river aek katia in kabupaten labuhanbatu, the presence of coliform bacteria can be an indicator of biology that is important to know the environmental conditions. This study aims to determine the environmental conditions based on biological indicators in the form of an abundance of coliform bacteria in the river Aek Katia Kabupaten Labuhanbatu. The main ingredient in this study is the river water and sediment. The results obtained are still below the quality standard so that the river aek katia in good condition biologically. The presence of coliform bacteria in the river can affect human and biota. So it needs to be considered in the efforts of the management of the environment of the community , especially in an effort to maintain the sustainability of fisheries resources.

Study Invasive Mollusks Melanoides tuberculata and Achatina fulica in District Labuhan Batu Selatan Arman Harahap
International Journal of Science and Environment (IJSE) Vol. 1 No. 1 (2021): November 2021
Publisher : CV. Inara

District Labuhanbatu selatan has natural/artificial inland waters for various usages. For example, freshwater has supported various activities such as agriculture, plantations, inland fisheries, and ecotourism. This study reports the presence of invasive mollusk in freshwater (Melanoides tuberculata) and terrestrial (Achatina fulica) habitats. This study is the first report regarding the spatial distribution of the three invasive mollusk species in the inland waters of District Labuhanbatu selatan. These invasive mollusks species are a severe threat to the preservation of native species and human health because they are an intermediate host for several types of parasites, such as the trematode group. The spreading and rapid development of these invasive mollusks is caused by their reproductive ability and resistance to poor environmental quality and airborne dispersal factors by birds, water flow, and commercial activities. This invasive species can directly cause huge economic losses as they become a pest inagricultural activities, plantations, and freshwater fisheries (aquaculture). They also can transmit pathogens and displacement of native species. Therefore, it is recommended to have a preventive effort to tackle the expansion of in District Labuhanbatu selatan.

Monitoring of Macroinvertebrate Species In Sibolga Waters Arman Harahap
Jurnal Pro-Life Vol. 9 No. 3 (2022): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

The waters of sibolga is the waters are very widespread in , this area is densely populated, so there are many community activities that take place such as Transportation, Fisheries, Bathing, sand Mining and other.The purpose of this study is to determine the role of Macroinvertebrate as a bioindicator of water quality in the waters of Sibolga Tapanuli Tengah, as well as determine the quality of water in the flow of the waters Sibolga physical properties, chemical has. The research was conducted from November 2021 to February 2022, the samples taken from the three research stations. From the results obtained Macroinvertebrate in the identification in this study consisted of 3 Phyla of invertebrates namely : Annelids, which consists of 2 classes, Arthropods consisting of 1 class and Molusca, which consists of 1 class. Based on the data of Macroinvertebrate obtained at each research station, then the obtained value of population density, relative density and frequency of presence of that at station I the value of its highest density is Tubifex sp. with the value of the density of the population of 18,519 individual/m2, the density is relatively 25,862% and the frequency of the presence of 55,555%. off at 3. at station 2 the highest density is Tubifex sp. with the value of the density of the population of 18,519 individuals/m2, relative density 25,862% and a frequency of 55,555%. also note that the total score obtained by the method storet, namely -30, this shows that if connected with the raw water quality of class I is then classified in the waters of class III, which means that light polluted. The high total score method storet on the entire research station due to the presence of a variety of activities at each of the stations, settlements, sand mining and other activities. Where these activities produce waste, which in the end increases the content of Phosfat, COD, TSS and BOD5, thus causing the waters of the Waters of Sibolga is light polluted.

Keanekaragaman Jenis Makrozoobenthos di Sungai Aek Buru Eli Suryani; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 1 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i1.5358

This study aims to determine the physical and chemical factors that contribute to the diversity of macrozoobentos in the Aekburu River, NA XI-X District, and North Labuhan Batu Regency. A descriptive approach was used to study the diversity of macrozoobentos in the Aek Buru River, Batu Tunggal Village, NA IX-X District, North Labuhan Batu Regency, and North Sumatra. The results showed that macrozoobenthic species were found in the Aek Buru River, with 15 species of the phylum Mollusca, and the highest relative abundance value was in the species Nerita albicilla at Station 1, with a percentage of 7.447%. From this study, it can be concluded that the abundance of macrozoobentos, diversity index, uniformity index, and dominance index are the types of macrozoobentos found.

Analysis of Differences in Well Water Quality Tests in the Highlands and Lowlands of Rantauprapat City Arman Harahap
International Journal of Science, Technology & Management Vol. 4 No. 1 (2023): January 2023
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v4i1.771

The existence of clean water is very important considering the very dynamic activities of people's lives. Therefore, the quality and quantity must be considered. Clean water that meets health requirements must be free from pollution and must meet quality standards: one of them is physical requirements because drinking water that does not meet quality standards can cause health problems. The topography of an area can affect groundwater in that area. This study aims to analyze differences in the quality of well water in the highlands of Rantauprapat City and the lowlands of Rantauprapat City based on physical parameters. The research was conducted at the BTKL Physics Laboratory in Medan in October 2022. The method in this research was observational analytic with a cross-sectional approach. The sample was determined by purposive sampling which amounted to 50 samples. Data were analyzed using SPSS 21 and the Mann Whitney-U Test. The results showed that there was no significant difference in water quality in the parameters of taste, temperature, odor and turbidity with a p value > 0.05, while there were significant differences in the parameters TDS and DHL with a p value <0.05. Conclusion: There are no significant differences in water quality in the parameters of taste, temperature, odor and turbidity, while in the TDS and DHL parameters there are significant differences in water quality with a p value <0.05. 0.05 while the TDS and DHL parameters are significantly different with a p value <0.05. Conclusion: There are no significant differences in water quality in the parameters of taste, temperature, odor and turbidity, while in the TDS and DHL parameters there are significant differences in water quality with a p value <0.05. 0.05 while the TDS and DHL parameters are significantly different with a p value <0.05. Conclusion: There are no significant differences in water quality in the parameters of taste, temperature, odor and turbidity, while in the TDS and DHL parameters there are significant differences in water quality with a p value <0.05.

Co-Authors Abd. Basir Abd. Basir Abdul Wahab Syakhrani Ahmad Fauzi Ahmad Hidayat Sutawidjaya Akhmad Halim Ilmanto Amin Harahap Andreas Simorangkir Astuti Yuni Nursasi Aziddin Harahap Bitondo Dieudonne Cengiz Kayacilar Dana Briggs Daru Asih Desi Nursaini Eli Suryani Elly Nurachmah Eni Fariyatul Fahyuni Erlina Puspitaloka Mahadewi Fahrur Rozy Siregar Gunawan Widjaja Harahap, P Hasmi Syahputra Harahap Ika Rosenta Purba Intan Bayati Nasution Isnaini Fitria Jendri Mamangkey Juliana Nasution Kamaliah Kamaliah Karyanto, Budi Khairul Khairul Kiki Maini Hasibuan Leli Febriani Lidia Rahayu Lina Rosanti Lucas William Mendes Mariana Simangunsong Masdiana Sinambela Mulya Rafika Ngadino Surip Nur Hasanah Pohan Nurhasanah Ritonga Nurlina Ariani Hrp Nurlina Nurlina Nurma Ani Paramadi Harahap Rani Lasari Ria Resti Fauzi Pane Rivo H. Dimenta Roma Tao Toba MR Rusdi Machrizal Sari Mawaddah Harahap Simangunsong Simangunsong Sintia Ananta Sri Kedaton Tris Eryando WINARTI WINARTI Wirawan, Vani Yatini, Yatini

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