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All Journal AL KAUNIYAH Biotropika Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan GRADIEN Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Pedagogi Hayati JURNAL ENGGANO EnviroScienteae PENDIPA Journal of Science Education Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi Jurnal Pendidikan Matematika Raflesia BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains JURNAL PERTANIAN Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Biosilampari: Jurnal Biologi Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) BioEksakta : Jurnal Ilmiah Biologi Unsoed Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Biodik: Jurnal Ilmiah Pendidikan Biologi

Abdul Rahman Singkam

Jurusan Pendidikan MIPA, FKIP, Universitas Bengkulu, Bengkulu

Author-ID : 3333396

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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KERAGAMAN IKAN LAUT DANGKAL PROVINSI BENGKULU Abdul Rahman; Ariefa Primair Yani; Aziza Fajri
JURNAL ENGGANO Special Issue SEMINAR NASIONAL VIRTUAL
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jenggano.5.3.424-438

Provinsi Bengkulu dengan 14.929,54 km2 perairan laut dan 525 km garis pantai diduga akan berhubungan dengan keragaman ikan laut yang tinggi. Penelitian ini bertujuan untuk menginventarisasi jenis-jenis ikan laut dangkal di perairan Provinsi Bengkulu. Sampel ikan laut yang diinventarisasi terbatas pada hasil tangkapan nelayan menggunakan pukat tepi atau perahu tradisional tanpa lampu. Lokasi pengambilan sampel (sampling) pada penelitian ini adalah di kawasan Pantai Zakat dan Pulau Baai Kota Bengkulu, dan Desa Lubuk Tanjung Bengkulu Utara. Sampling dilakukan dengan metode sensus berupa koleksi terhadap semua jenis yang ditemukan, dan dihentikan jika temuan jenis baru kurang dari 10% dari jenis yang sudah didapatkan sebelumnya. Sampel dideskripsi berdasarkan struktur meristik dan morfometrik, dan diidentifikasi berdasarkan kunci identifikasi yang relevan. Berdasarkan hasil penelitian ditemukan 37 spesies (27 famili) ikan laut dangkal yang terdapat di Provinsi Bengkulu. Famili dengan keragaman terbesar adalah Clupeidae dan Carangidae, yaitu masing-masing sebanyak empat dan tiga jenis. Jenis yang konsisten ditemukan di ketiga lokasi adalah Arius thalassinus (Gaguk), Eleutheronema tetradactylum (Senangin), Johnius borneensis (Kerong), Johnius trachycephalus (Galama), Opisthopterus tardoore (Bleberan), dan Pentaprion longimanus (Kape-kape karang). Hanya satu jenis yang termasuk dalam Chondrichthyes yaitu Taeniura lymna. Lokasi Pantai Zakat memiliki keragaman jenis tertinggi, yaitu sebanyak 17 jenis. Lokasi dengan keragaman ikan laut terendah adalah Pulau Baai yaitu hanya sebanyak delapan jenis.Province of Bengkulu with its 14.929,54 km2 sea waters and 525 km shoreline is expected to correlate with a high diversity of marine fish. This research aims to inventorize the diversity of marine fishes in the epipelagic zone Province of Bengkulu. Sample in this research was restricted only to the fishes that was caught by using traditional boat or shore trawl. The sampling stations were in Pantai Zakat and Pulau Baai at city of Bengkulu, and Lubuk Tanjung village at Bengkulu Utara. Cencus method was applied by collecting all the located species, and sampling was terminated if the new species was found less than 10% of the total identified sample. Sample was described based on the meristic and morphometric structure, and then was identified for its scientific name by using some related references. This research found 37 species (27 family) of sea fish at epipelagic zone of Bengkulu Province. Family with the highest diversity were Clupeidae and Carangidae, with four and three species respectively. There are six species that were consistently found in all sampling locations, i.e. Arius thalassinus (Gaguk), Eleutheronema tetradactylum (Senangin), Johnius borneensis (Kerong), Johnius trachycephalus (Galama), Opisthopterus tardoore (Bleberan), and Pentaprion longimanus (Kape-kape karang). Only a species, Taeniura lymna, belongs to the Chondrichthyes. Pantai Zakat has the highest diversity with 17 species, while Pulau Baai was the lowest with only eight species.

Perbandingan Kualitas Air Sumur Galian dan Bor Berdasarkan Parameter Kimia dan Parameter Fisika Indri Lita Lestari; Abdul Rahman Singkam; Fenty Agustin; Pingkan Luthfiyyah Miftahussalimah; Anggie Yovita Maharani; Rusma Lingga
BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Vol 4 No 2 (2021): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

This study aims to analyze and compare the quality of dug well water and bore well water around the UNIB Kandang Limun campus. The descriptive method was used to analyze 60 samples, consisting of 30 water samples for each dug well and drilled well. The parameters measured were the degree of acidity (pH), total dissolved particles (TDS), salt content, and electrical conductivity (DHL). This study found that only 35% of the samples met the class I water quality standards. The samples consisted of 7 dug well samples and 14 drilled well samples. Most of the samples (53%) had an acidic pH below 6.5, while the other 12% did not meet the quality standards from TDS, DHL, or both. The pH value of dug well water was significantly lower (more acidic) than drilled well water (p < 0.0001, F1.58=27.28), but the TDS and DHL values in drilled well water were significantly higher (p < 0.01, F1.58=9.09 for TDS; p < 0.001, F1.58=15.89 for DHL). In conclusion, the water quality of drilled wells in the Kandang Limun Campus area is better than that of dug wells. Keywords: Lemonade Cage, Water Quality, Drilling Well, Excavation Well

Uji Antibakteri Ekstrak Etanol Daun Theobroma cacao L. terhadap Pertumbuhan Escherichia coli dengan Metode Difusi Cakram Annisa Rahmi Hayati; Abdul Rahman Singkam; Dewi Jumiarni
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 inhibition of T. cacao L. leaf extract on the growth of E. coli bacteria and the correlation between the concentration of T. cacao L. leaf extract and the formed E. coli inhibition zone. The method used is experimental post-test only control design using Completely Randomized Design (CRD). The inhibition zone of T. cacao L. leaves against E. coli was tested using the disc diffusion method with six treatments (concentration 25%, 50%, 75%, 100%, positive control and negative control) repeated five times. The results showed that the diameter of the inhibition zone of the leaf extract of T. cacao L. against E.coli was at intervals of 5-10 mm and was included in the category of moderate inhibition, but the results of Duncan's test showed that there was no significant difference between the inhibition zones formed at concentrations 25%, 50%, 75%, and 100%. In conclusion, the leaves of T. cacao L. were less effective in inhibiting the growth of E. Coli, but the leaf extract of T. cacao L. was positively correlated with the inhibition zone formed. Keywords: Leaf Extract, Escherichia coli, Theobroma cacao L., Zone of Inhibition Test

Keanekaragaman Mikroalga sebagai Bioindikator di Perairan Sungai Mustika Elmi Dayana; Abdul Rahman Singkam; Dewi Jumiarni
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 diversity of microalgae and their relationship with water quality in the Air Lais River. The method used is a survey method. The results showed that there were 28 species of microalgae consisting of 7 divisions. The abundance of microalgae at the upstream station was 52 ind/ml, the middle station was 50 ind/ml and the downstream station was 115 ind/ml. The microalgae diversity index at each station was 2.2; 2.2; and 2.59, with a moderate level of diversity criteria. The microalgae dominance index was in the low dominance criteria, with the value of each station being 0.21; 0.20; and 0.14. In conclusion, the condition of the Air Lais River is still relatively clean and shows a normal tolerance range for microalgae life. Keywords: Diversity, Microalgae, Lais Water River

PENGEMBANGAN BUKU UNIT PEMBELAJARAN BIOLOGI BERDASARKAN KEANEKARAGAMAN LUMUT KERAK DI DANAU PICUNG KABUPATEN LEBONG Repani Anggraini; Bhakti Karyadi; Alif Yanuar Zukmadini; Dewi Jumiarni; Abdul Rahman
Prosiding Seminar Nasional Biotik Vol 9, No 2 (2021): PROSIDING SEMINAR NASIONAL BIOTIK IX 2021
Publisher : Prosiding Seminar Nasional Biotik

Lumut kerak (lichens) merupakan simbiosis mutualisme yang terjadi antara jamur dengan alga. Kelompok tumbuhan ini memiliki fungsi sebagai indikator lingkungan alami di suatu daerah. Penelitian ini bertujuan untuk mengetahui keanekaragaman lichens di Danau Picung Kabupaten Lebong dan mengetahui hasil kelayakan Buku Unit Pembelajaran (BUP) yang terintegrasi riset materi jamur (fungi) kelas X SMA Negeri 3 Lebong. Objek penelitian ini yaitu 24 orang siswa. Metode yang digunakan adalah Research and Development dengan model 4D yang dibatasi pada tiga tahap meliputi tahap define, design, dan develop. Teknik pengumpulan data lichens adalah teknik observasi dan teknik pengumpulan data kelayakan BUP menggunakan angket. Observasi lichens dilakukan di kawasan Danau Picung dengan metode garis transek. Uji kelayakan BUP dilakukan oleh validator ahli media, ahli materi, dan ahli praktisi. Berdasarkan hasil penelitian ditemukan 23 spesies lichens yang terdiri dari 1 divisi ascomycota, 5 kelas, dan 19 famili. BUP yang diintegrasikan dengan hasil riset lichens mendapatkan nilai sangat layak oleh validator (97,76%) dan layak digunakan sebagai bahan ajar materi jamur (fungi) kelas X pada tingkat Sekolah Menengah Atas.

KUALITAS SUNGAI SELAGAN BENGKULU BERDASARKAN FISIKA-KIMIA PERAIRAN DAN KERAGAMAN MAKROINVERTEBRATA Abdul Rahman Singkam; Zakaria Husni; K Kasrina
Jurnal Biosilampari : Jurnal Biologi Vol 4 No 2 (2022): Biosilampari
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/biosilampari.v4i2.1526

This research aims to determine the quality of Selagan River, Bengkulu based on its water physico-chemical parameters and macroinvertebrate diversity. Data were collected at three stations, Lubuk Bangko (upstream), Lubuk Sahung (middle) and Tanah Rekah (downstream) in April 2019 represents the peak of rainy season, and September 2019 represents the peak of dry season. Macroinvertebrate sampling was carried out on three minutes sampling method, and the obtained samples were identified at least to the family level. The result indicated the physico-chemical of Selagan River are generally in a normal range, except for a bit higher temperature at Lubuk Sahung and Tanah Rekah during April sampling (31 and 32oC respectively). This research also found 508 of individual macroinvertebrates that were divided into 19 species (19 families; 4 class and 4 phyla). The Shannon wienner diversity index (H’) of macroinvertebrates from the upstream to downstream are 1.54; 2.20 and 0.84, while the Berger-Parker’s dominance index (BP) are ranging from 0.30 into 0.92. The number of EPT individual in each station from up- to downstream is 129; 40; and 0, with FBI index is 4.11; 5.23; and “infinity” consecutively. The combination of those several indices indicated that the upstream of Selagan river is still in a very good condition, the middle area is starting to degraded, while the downstream had been degraded and polluted by organic substances.

STUDI KEANEKARAGAMAN MIKROALGA DI SUNGAI DAN DANAU BENGKULU SEBAGAI BIOINDIKATOR PERAIRAN Oktaria Silviani; Bhakti Karyadi; Sipriyadi Sipriyadi; Dewi Jumiarni; Abdul Rahman Singkam
Jurnal Biosilampari : Jurnal Biologi Vol 4 No 2 (2022): Biosilampari
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/biosilampari.v4i2.1614

This exploratory study aims to analyze the water quality of Selagan River and Tes Lake based on diversity of microalgae. Sampling was done by systematic purposive sampling. Results of study found 38 species (8 classes) of microalgae in Selagan River and 48 species (9 classes) in Tes Lake. The bundance of microalgae at the upstream, middle, and downstream stations of Selagan River were 3714 ind/ml, 105 ind/ml, and 315 ind/ml, with diversity index 0.25; 1.93; and 1.72. The microalgae dominance index in river is 0.95; 0.58; and 0.75 low to high criteria. The evenness index value for each station is 0.09; 0.78; and 0.63 low to high categories. Meanwhile, abundance of microalgae in Tes Lake at the inlet, middle, and outlet stations were 192 ind/ml, 204 ind/ml, and 200 ind/ml, with diversity index of 2.70; 2.55; and 2.05. The microalgae dominance index was 0.10; 0.28; and 0.2 low category. The evenness index value for each station is 0.78; 0.75; 0.64 high category. Conclusion, condition of Selagan River at the upstream station is classified as heavily polluted, the middle and downstream stations are classified as clean. Meanwhile, condition of Tes Lake is clean and shows normal tolerance range for microalgae life.

TINJAUAN KUALITAS SUNGAI BENGKENANG BERDASARKAN FISIKA KIMIA PERAIRAN DAN KOMUNITAS MAKROINVERTEBRATA Abdul Rahman Singkam; Agus Budi Utomo; Bhakti Karyadi
EnviroScienteae Vol 18, No 3 (2022): ENVIROSCIENTEAE VOLUME 18 NOMOR 3, NOVEMBER 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v18i3.14790

This research aims to determine the quality of Bengkenang River based on the physicochemical factors and macroinvertebrates community. The measuring of physicochemical parameters was carried out at three stations, namely Sukarami Village, Durian Seginim, and Padang Burnai with two periods for each station: April 2019 following the peak of the rainy season and September 2019 following the peak of the dry season. The physicochemical factors were analyzed descriptively, while macroinvertebrates community were analyzed as the indices of Shannon-Wiener diversity index (H’), Ephemeroptera-Plecoptera-Trichoptera (EPT), and Family Biotic (FBI). The temperature, dissolved oxygen, degree of acidity, and total dissolved solids of this river in each station were in the normal range. This study found 611 individuals of macroinvertebrates that were divided into 21 species (21 families; 4 phyla; 5 classes). The highest species abundance was Epeourus aculeatus, 22.42% of the total sample. The H’ index from up- to downstteram were 1.79; 2.03; 1.80 respectively, indicating the Bengkenang River is slightly to moderately degraded. The total number of EPT individuals was 305, with mostly found at the downstream and dominated by Heptaginidae (Ephemeroptera). The FBI values were 3.81; 4.18; and 4.33 showed that the quality of the water is “very good”. Based on this physico-chemical factors, H’, EPT, and FBI data, it can be concluded the Bengkenang River is in a good quality.

PEMANFAATAN SABUT KELAPA MELALUI METODE SLOW SAND FILTRATION UNTUK MEMENUHI KEBUTUHAN AIR BERSIH DI DESA TALANG TINGGI SELUMA Abdul Rahman Singkam; Fadjri Fil Ahli Hady; Ananda Putri Gita Natasya; Nyimas Ajeng Ayu Meilani; Septia Noparis Fadhila; Anjaly Dewi Puspitasari; Mustika Elmi Dayana
Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Vol 10 No 3 (2023): September
Publisher : Lembaga Penelitian, Penerbitan dan Pengabdian Masyarakat (LP3M) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/ppkm.v10i3.5258

The sources of clean water is very important for everyone to support their life needs. However, Talang Tinggi Village, Seluma Regency has poor water supply conditions, indicated by the physical condition of the water which smells, the color is brown, and has sediment. This condition is getting worse because the source of water will be mixed with soil and mud. Talang Tinggi village does not have PDAM access yet, so the need for clean water only relies on natural water sources, swamp water and well water. This community service aims to overcome the problem of water resources in Talang Tinggi Village, Seluma Regency, Bengkulu Province by utilizing coconut fiber waste, as a filter media in the Slow Sand Filtration method. The results of the activity showed that there was a very significant improvement in water quality. The water that was cloudy and smelled becomes clearer and odorless. The value of acidity (pH) of the water sample also increased from 6.05-7.38 to 6.5-9.0. These results indicate that coconut fiber, which has been considered as waste, can be used to an effective filter for cleaning water.

Kualitas Fisika-Kimia Air Sumur Galian di Pesisir Kota Bengkulu Rahman Singkam, Abdul; Putri, Yananda Apriliani; Tiara Sabrina, Khairunisa; Hidayat Al-Badar, Aqilul; Anugrah, Tessa; Antina, Fesy; Puspita Sari, Juliana
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 5 No. 1 (2024): February
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v5i1.298

Air bersih adalah kebutuhan mendasar bagi kehidupan manusia. Sebagian besar penduduk mengandalkan sumur galian untuk memenuhi kebutuhan sehari-hari. Penelitian ini bertujuan untuk memetakan kualitas air sumur galian di pesisir Kota Bengkulu berdasarkan kondisi fisika dan kimia. Pengambilan sampel dilakukan di tujuh Kecamatan wilayah pesisir Kota Bengkulu dengan 15 sampel acak per kecamatan. Hasil penelitian menunjukkan nilai salinitas, daya hantar listrik, oksigen terlarut, dan suhu semua sampel tergolong dalam baku mutu air Kelas I yang dapat digunakan untuk air minum. Nilai total partikel terlarut (TDS) menunjukkan ada enam kecamatan yang memenuhi standar baku mutu dan satu kecamatan, yaitu Kecamatan Muara Bangkahulu, yang tidak memenuhi standar baku mutu. Hasil analisis pH menunjukkan hanya air sumur di Kecamatan Sungai Serut yang memenuhi standar baku mutu air Kelas I, sedangkan air sumur di enam kecamatan lain memiliki pH yang cenderung asam. Kondisi air asam merupakan ciri khas air sumur di muara yang biasanya disebabkan penumpukan hasil dekomposisi material organik. Namun demikian, penyebab keasaman ini masih membutuhkan penelitian lebih lanjut. pH asam yang disebabkan oleh kandungan logam berat merupakan hal yang berbahaya bagi kesehatan

Co-Authors Agus Budi Utomo Alif Yanuar Zukmadini Amalia Hafifah Ananda Putri Gita Natasya Anggie Yovita Maharani Anjaly Dewi Puspitasari Annisa Rahmi Hayati Antina, Fesy Anugrah, Tessa Apriansyah, Dendy Ariefa Primair Yani Aziza Fajri Bhakti Karyadi Bhakti Karyadi Bhakti Karyadi Dayana, Mustika Elmi Fadjri Fil Ahli Hady Fenty Agustin Fera Waroka Fitra Youpika Handika Dwi Prasetyo Hidayat Al-Badar, Aqilul Indri Lita Lestari Irwandi Ansori Irwandi Ansori Jumiarni, Dewi K Kasrina Kasrina Kasrina Kurniawati, Meina Elsa Putri Latifah, Dina Utfatul Miftahussalimah, Pingkan Luthfiyyah Moh Aziz Pathori Muhammad Izzudin Al Qosam Mustika Elmi Dayana Nyimas Ajeng Ayu Meilani Oktaria Silviani Pingkan Luthfiyyah Miftahussalimah Puspita Sari, Juliana Putri, Yananda Apriliani Repani Anggraini RIDWAN AFFANDI Ridwanul Fata Rusma Lingga Septia Noparis Fadhila Sipriyadi Siti Zubaidah Sumardi, Hari Syaiful Rochman Talib Chitheer TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Tiara Sabrina, Khairunisa Utami, Khofifah Dwi Wardhani, Febrina Kusuma Zakaria Husni

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