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All Journal JBIO: jurnal biosains (the journal of biosciences) Tunas Geografi Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Serambi Engineering IJOEP : International Journal of Ecophysiology
Ternala Alexander Barus
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics Other

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HUBUNGAN ANTARA KUALITAS AIR DENGAN KEBIASAAN MAKANAN IKAN BATAK (Tor soro) DI PERAIRAN SUNGAI ASAHAN SUMATERA UTARA Budianto Siregar; Ternala Alexander Barus; Syafruddin Ilyas
JBIO: jurnal biosains (the journal of biosciences) Vol 1, No 2 (2013): Bio
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v1i2.12508

Abstract

Telah dilakukan penelitian tentang hubungan antara kualitas air dengan kebiasaan makanan ikan batak (Tor soro) di perairan Sungai Asahan Sumatera Utara pada bulan November 2012-Januari 2013. Tujuan penelitian ini adalah untuk mengetahui kebiasaan makanan ikan batak (Tor soro), kualitas air Sungai Asahan, serta hubungan antara kualitas air dengan kebiasaan makanan ikan batak (Tor soro). Pengambilan sampel dilakukan dengan menggunakan electrofishing dan jala serta isi lambung dianalisis dengan menggunakan metode volumetrik. Hasil penelitian menunjukkan bahwa ikan batak (Tor soro)  memiliki pola pertumbuhan alometrik. Makanan utama ikan batak (Tor soro) berdasarkan Index of Preponderance: Cladophora (47,01%, 62,29%, 71,11%) pada stasiun 1, 4, dan 5. Cymbella (47,57%) pada stasiun 2, Vaucheria (51,46%) pada stasiun 3. Temperatur, Intensitas cahaya, kecerahan dan pH berkorelasi kuat terhadap Cladophora. Nitrat dan posfat berkorelasi kuat terhadap Cymbella. Nitrat berkorelasi kuat terhadap Vaucheria. Kondisi Sungai Asahan secara relatif dalam keadaan baik dan mendukung pertumbuhan ikan batak (Tor soro).
HUBUNGAN ANTARA KUALITAS AIR DENGAN KEBIASAAN MAKANAN IKAN BATAK (Tor douronensis) DI PERAIRAN SUNGAI ASAHAN SUMATERA UTARA Ria Lumbantoruan; Ternala Alexander Barus; Syafruddin Ilyas
JBIO: jurnal biosains (the journal of biosciences) Vol 1, No 2 (2013): Bio
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v1i2.12728

Abstract

Telah dilakukan penelitian tentang hubungan antara kualitas air dengan kebiasaan makanan ikan batak (Tor douronensis) di Perairan Sungai Asahan Sumatera Utara. Tujuan penelitian ini adalah untuk mengetahui kualitas air Sungai Asahan, kebiasaan makanan ikan batak (Tor douronensis) serta hubungan antara kualitas air dengan kebiasaan makanan ikan batak (Tor douronensis). Hasil penelitian menunjukkan bahwa ikan batak memiliki pola pertumbuhan alometrik. Makanan utama ikan batak berdasarkan indeks prepoderannya adalah Cymbella (56,32%), Navicula (46,65%), Thiothrix (44,25%), dan Ulothrix (76,21%). Temperatur berkorelasi kuat terhadap Thiothrix. Kecerahan berkorelasi kuat terhadap Thiothrix. Intensitas Cahaya berkorelasi sangat kuat terhadap Navicula. Arus berkorelasi kuat terhadap Navicula. Parameter pH berkorelasi sangat kuat terhadap Cymbella. DO berkorelasi kuat terhadap Navicula. BOD 5 berkorelasi kuat terhadap Navicula. NO3 berkorelasi kuat terhadap Thiothrix. PO4 berkorelasi berkorelasi kuat terhadap Thiothrix. Kondisi Sungai Asahan mengindikasikan secara relatif dalam keadaan baik dan mendukung pertumbuhan ikan batak (Tor douronensis).
HUBUNGAN ANTARA KUALITAS AIR DENGAN KEBIASAAN MAKANAN IKAN BATAK (Neolissochilus sumatranus) DI SUNGAI ASAHAN, SUMATERA UTARA Mesrawati Purba; Ternala Alexander Barus; Syafruddin Ilyas
JBIO: jurnal biosains (the journal of biosciences) Vol 1, No 2 (2013): Bio
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v1i2.12729

Abstract

The study of the water quality relationship and food habits of batak fish (Neolissochilus sumatranus) in Asahan river, North Sumatra was conducted. Aims of this research are to undesrtand the food habits of batak fish , the water quality of Asahan river and relationship between water quality and food habits of batak fish. Fish samples were caught by electrofishing and casnet and stomach content was analysis using volumetric method. Results showed that the batak fish  have allometric growth patten. Based on the data of stomach content shown that 38 organism, the major food of batak fish  based on index preponderance are Cymbella (42,56%), Navicula (56,90%) and Nitschia (47,09 %). Cymbella positively correlated with light penetration, light intensity, DO and BOD5 and negatively correlated with temperature,water current, pH, NO3 and PO4. Navicula positively correlated with water current, pH, DO, BOD5, NO3 and PO4 and negatively correlated with temperature, light penetration and light intensity. Nitzschia positively correlated with light intensity,   temperature, light penetration, pH and PO4 and negatively correlated with water current, DO, BOD5 and NO3. Indicating the condition of Asahan river is relatively in good condition and support fish growth as well
IKAN BATAK (Neolissochillus sumatranus) SEBAGAI BIOINDIKATOR PENCEMARAN LOGAM BERAT TIMBAL (Pb) DAN CADMIUM (Cd) DI PERAIRAN SUNGAI ASAHAN SUMATERA UTARA Rina Marintan Sitorus; Ternala Alexander Barus; Syafruddin Ilyas
JBIO: jurnal biosains (the journal of biosciences) Vol 1, No 2 (2013): Bio
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v1i2.12735

Abstract

Penelitian ikan batak (Neolissochillus sumatranus) sebagai bioindikator pencemaran logam berat Pb dan Cd di sungai Asahan. Pengambilan sampel dilakukan pada bulan  Januari 2013 di 5 stasiun pengamatan. Sampel yang diambil adalah ikan dan air. Parameter yang diamati adalah logam berat (Pb dan Cd), kualitas air (temperatur, arus, kecerahan dan intensitas cahaya) dan unsur hara (nitrat dan posfat). Kandungan logam berat Pb  di air (<0,01 mg/L) dan pada ikan (<0,054 mg/L)  masih di diluar batas baca untuk deteksi limit. Kandungan Cd di air berkisar antara 0,002-0,007 mg/L, nilai ini masih dibawah baku mutu air golongan I (Peraturan Pemerintah No. 82 tahun 2001), dan di air nilai Cd diluar batas baca untuk deteksi limit yaitu <0,003 mg/L. Konsentrasi logam (Pb dan Cd) di air dan ikan masih memenuhi standar baku mutu. Klasifikasi mutu air kelas IIL dengan metode storet disimpulkan bahwa setiap stasiun tergolong kualitas air kelas A kategori perairan baik sekali.  
Analisis Kualitas Air Danau Lut Tawar Kabupaten Aceh Tengah Aceh Rima Tamara; Ternala Alexander Barus; Hesti Wahyuni
Jurnal Serambi Engineering Vol 7, No 4 (2022): Oktober 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i4.4972

Abstract

Danau Lut Tawar merupakan sebuah danau dan kawasan wisata yang terletak di kawasan dataran tinggi Gayo (Aceh Tengah). Pemanfaatan danau ini sebagai sumber air bersih, sumber air pertanian, industri, dan perikanan. Kualitas air merupakan komponen lingkungan yang sangat penting  sebagai indikator sehatnya suatu daerah perairan. Kualitas air dapat diketahui dengan melakukan pengujian parameter kimia, fisik, dan biologi. Pencemaran perairan dapat terjadi dan menyebabkan perubahan kualitas air apabila masuknya zat atau bahan ke dalam suatu perairan yang dapat mengurangi atau merusak nilai suatu perairan. Penelitian ini bertujuan untuk menganalisis kualitas dan tingkat pencemaran air di Danau Lut Tawar. Penelitian ini merupakan penelitian analisis deskriptif kuantitatif. Pengambilan sampel pada penelitian ini dilakukan secara purposive sampling pada 4 stasiun berdasarkan kegiatan yang ada di sekitar Danau. Hasil Pengukuran kualitas air danau Lut Tawar tidak melebihi nilai ambang batas yang telah ditetapkan berdasarkan baku mutu lingkungan PP 22 Tahun 2021 Lampiran VI. Analisis tingkat pencemaran di Danau Lut Tawar tergolong dalam kategori tercemar sedang berdasarkan metode Indeks STORET dengan menggunakan penilaian status pencemaran perairan. Faktor penyebab pencemaran danau Lut Tawar disebabkan oleh adanya aktifitas budidadya ikan (KJA), pembuangan limbah domestik dan limbah pertanian dari aktivitas masyarakat di sekitar Danau Lut Tawar.
Diversity of Fish in Idanoi River and It’s Relationship to Physical Factors of Water Chemistry Ternala Alexander Barus
International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijoep.v3i1.10024

Abstract

A river is an area through which a body of water moves from a high place to a low place either through the surface or underground which has an average width equal to or more than 5 meters. One of the rivers in Indonesia is the Idanoi river, located in the North Sumatra region, Ononamolo 1 Lot village, Gunungsitoli Selatan sub-district, Nias. This river is inseparable from human activities which affects the condition of river waters as a habitat for aquatic biota. The purpose of this study was to analyze the diversity of fish species in the river Idanoi and to analyze the physical-chemical factors of waters which correlate with the diversity of fish species in the river Idanoi. This study uses the Random sampling method. The results of the research obtained from the four research stations found 1 class, 5 orders, 7 families and 7 species. The highest density value was found at station 1 with a value of 0.023 ind / m2, fish diversity index ranged from 1.072 - 1.829 and the fish uniformity index ranged from 0.92 to 0.98. DO, BOD5 values and oxygen saturation correlated very strongly with fish diversity in river Idanoi village Ononamolo 1 Lot.
Analysis of Microplastic Abundance in Lake Siombak, Medan Marelan, Medan Jaka Ramananda; Ternala Alexander Barus; Arif Nuryawan
Tunas Geografi Vol 12, No 1 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i1.39753

Abstract

Microplastics are one of the pollutants that threaten aquatic ecosystems and have become the focus of research in recent years by environmentalists worldwide. In addition to harmful base materials, microplastics have hydrophobic characteristics, so chemicals such as Persistent Organic Pollutants can stick to microplastics and cause chemical pollution in aquatics. Siombak Lake is located in the coastal area of Medan City, and it is predicted to be a microplastic distribution channel to the aquatics. This study aimed to analyze the abundance of microplastics in water, sediment, and fish in Siombak Lake. Sampling was conducted from November 2021 – January 2022 at Siombak Lake. Water samples to be analyzed were added with 90 g NaCl, then filtered and separated visually using a microscope. Microplastic in the sediment is separated by drying, volume reduction, density separation, filtration, and visual sorting. Fish samples were dissected, and then the digestive tract content of fish was diluted with 10 ml of saturated NaCl. The abundance of microplastics obtained in waters ranged from 93-519 particles/m3, and the Number of microplastics in sediment ranged from 521-1481 particles/kg dry sediment, while the abundance of microplastics in fish samples ranged from 0-6 particles/individual.Keywords: Microplastic, Abundance, Coastal, Pollutant, Siombak Lake 
The Abundance of Microplastics in Sediment Siak River Pekanbaru City Tasya Anaya Dzaki Khalis; Ternala Alexander Barus; Hesti Wahyuningsih
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.7517

Abstract

Sediments are temporary and long-term reservoirs for waste including microplastic particles.  Microplastics are large-sized plastics that are under 5mm in size. microplastic particles with a density greater than water can enter the sediment and accumulate. High water utilization activities can be a way for plastic waste from land to enter the waters, one of the rivers that has high utilization is the Siak River in Pekanbaru city. This study aims to analyze the abundance and distribution of microplastics based on 3 (three) stations in the Siak River. The research procedure consists of sampling, microplastic separation, and microplastic analysis. The results showed that the Siak River in Pekanbaru city contained microplastic types of fragments (32%), films (31%), fibers (25%), and granules (12%). The highest abundance of microplastics was at station 1 with an average abundance of 32.67/kg which was dominated by fragment-type microplastics. The Siak River in Pekanbaru city has been contaminated with microplastics which can be intentionally or unintentionally eaten by aquatic biota.
Co-Authors Arif NURYAWAN Budianto Siregar Hesti Wahyuni Hesti Wahyuningsih Jaka Ramananda Mesrawati Purba Ria Lumbantoruan Rima Tamara Rina Marintan Sitorus Syafruddin Ilyas Tasya Anaya Dzaki Khalis