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All Journal Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Jurnal Ilmu Lingkungan JBIO: jurnal biosains (the journal of biosciences) Tunas Geografi Peronema Forestry Science Journal Aquacoastmarine SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Journal of Applied Geospatial Information Jurnal Penelitian Pendidikan IPA (JPPIPA) Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Serambi Engineering Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Berkala Ilmiah Biologi Journal of Environmental and Development Studies Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Hesti Wahyuningsih
Department Biology, Faculty Of Mathematics And Natural Sciences, Universitas Sumatera Utara. Medan, Indonesia
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 Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Veterinary Other

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Daily Fluctuation of Planktons Abundance in Percut Sei Tuan Waters, Deli Serdang Regency, North Sumatera Rizki, Rafika; Wahyuningsih, Hesti; Barus, Ternala Alexander
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.5813

Abstract

Plankton is an aquatic biota that lives following the currents in the water.  The life of plankton is highly dependent on the water quality in those aquatic environments. The constantly changing physical and chemical conditions of water lead to fluctuations in the abundance of plankton in a water. This study aims to analyze fluctuations in plankton abundance and its correlation with water quality in Percut Sei Tuan Waters. The study was conducted in February and March 2023. Filtration method at 3 stations is the Sampling technique used in this study. The sampling period is carried out in the morning, afternoon, and evening. Data analysis to determine the relationship between variables using Pearson correlation in SPSS version 26. Based on the research results, 42 genera of phytoplankton and 16 genera of zooplankton were found. The highest abundance of phytoplankton was 4.635 Ind/L during the afternoon. The highest abundance of zooplankton was obtained at evening, which was 1.049 Ind/L. This is due to the daily vertical migration of zooplankton and their negative phototactic behavior, while phytoplankton require light for photosynthesis. The research results indicate that the abundance of phytoplankton has a very strong correlation with temperature, light intensity, salinity, TSS, pH, DO, and Nitrate. The abundance of zooplankton is highly correlated with water flow velocity, light intensity, salinity, TSS, TDS, pH, DO, Nitrate, and Phosphate.
Population Study of Kedukang Fish (Hexanematichthys sagor) in The Waters of Percut River, Percut Sei Tuan District, Deli Serdang Regency, North Sumatera Sinaga, Ade Angelia Atmanegara; Wahyuningsih, Hesti; Berliani, Kaniwa
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.5814

Abstract

Kedukang fish (Hexanematichthys sagor) is a consumable fish that is widely caught by fishermen and the community. Kedukang fishing is carried out every day in the Percut River, resulting in a decline in its population. This study aims to analyze the population by looking at density, sex ratio, growth pattern, gonad maturity level, gonad maturity index and fecundity of kedukang fish and analyze the relationship between physical-chemical factors of waters with population density of Kedukang fish. Samples were taken using purposive sampling method at 3 observation stations with 2 repetitions. Fish samples were taken using a net fishing gear installed at low tide and lifted at high tide. The results showed that the population density of kedukang fish in Percut River was low ranging from 0.048-0.123 ind/m2. The sex ratio kedukang fish at each observation station has an average of 1:0.5. The growth pattern of fish is allometric negative. The frequency distribution of fish length ranged from 21.5-47.9 cm. The greatest number of fish caught had a length range of 30.3-34.7 cm as many as 9 fish. The level of gonad maturity kedukang fish is dominated by TKG V. The average gonad maturity index of female kedukang fish is highest at the TPI location which is 20.729% and the highest fecundity at station II which is 4622.6. The relationship between the density of the kedukang fish population is very strong and positively correlated with DO, light intensity and nitrate. The population density of kedukang fish was strongly and negatively correlated with pH and phosphate.
The Abundance of Microplastics in Sediment Siak River Pekanbaru City Khalis, Tasya Anaya Dzaki; Barus, Ternala Alexander; Wahyuningsih, Hesti
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.
Analysis of abundance of microplastic in fish caught in Percut Waters Tia Angraini; Fatimah Fatimah; Hesti Wahyuningsih
Depik 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.13.2.33859

Abstract

Plastic waste that is not managed properly will damage the environment by polluting the ecosystem. Plastic in waters can turn into micro-sized plastic waste. Plastics whose size is less than 5 mm are called microplastics. The emergence of microplastic pollutants is caused by increasing population activity in Percut Waters. Percut waters are waters located in the coastal area of North Sumatra where there are many anthropogenic activities that cause the emergence of microplastics. Microplastics can have a negative impact on exposed marine biota. Nowadays microplastics are not only found in the environment, but can also accumulate in the bodies of organisms, for example. This research aims to determine the abundance of microplastics in fish found in Percut waters. The research was carried out in October November 2022 in Percut Waters. Fish samples were caught using nets and the samples were separated from their digestive tract and diluted with the addition of NaCl and H2O2 lauric. The average abundance of microplastics in fish samples ranged from 24294 particles. The fish species where the most microplastics were found was mullet fish with 294 particles. The most common types of microplastics found in total are fiber microplastics.Keywords:MicroplasticDigestionCoastalPercut
Analysis of Water Quality Pollution Index Asahan river in Tanjungbalai City Virna Br Sinulingga; Ternala Alexander Barus; Hesti Wahyuningsih
Depik 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.12.3.33274

Abstract

The Asahan River, located in the Tanjungbalai city area, is used for plantation, agriculture, animal husbandry activities, toilet washing facilities, hospitals, hotels, settlements, and industry causing the decrease water quality of Asahan River. The purpose of this study was to analyze the water quality and status of the Asahan River water quality in the Tanjungbalai City Area and develop a pollution control strategy that needs to be implemented to prevent a decrease in the Asahan River water quality in the Tanjungbalai City Area. Purposive sampling technique as used to determine the sampling station. In this study, there were 6 sampling stations based on the activities of the local community with 3 repetitions of sampling. The data analysis techniques from this study are Water Quality Analysis using the Pollution Index (IP) Method and Water Pollution Control Strategy Analysis. The results of water quality analysis based on the pollution index on Asahan river water in Tanjungbalai City show that the average water pollution index is in the moderately polluted category. The maximum of river water pollution index results were at station 2 is 9,086 and the minimum of river water pollution index results were at station 5 is 6,111.Water pollution occurs due to the parameters of phosphate, detergent, oil and grease, and total coliform which have exceeded the quality standard threshold based on Government Regulation of the Republic of Indonesia Number 21 of the year 2022 concerning Management of Water Quality and Control of Class I Water Pollution.Keywords:Asahan RiverWater pollution IndexWater Quality
Co-Authors . Elvitriana Agus Oman Sudrajat Ahmad Muhtadi Ahmad Mutadi Alvi Syahrin Angraini, Tia Ani Suryanti Arbi Maulana Arif Nuhalin Nasution Aththorick, T Alief Atni, Oky Kusuma Baehaqi Berliani, Kaniwa Charo Lina Kaban Delvian Delvian Delvian Desrita Desrita Desti Natalia Simbolon Dilla Ersyahdes Riski Elimasni Enzelia R Gultom Erlangga Erlangga Erman Munir Erni Jumilawaty etti sartina siregar Eva Christina S Fachri Fauzi Fatimah Fatimah fatimah Fatimah Fatmadhona Artamadya Fernades SP Simarmata Frandy Tulus Siahaan Hamdani Harahap Hariadi Sirait Hasan, Uswatul Hermansyah Hotnida Sinaga Indra Lesmana Ira Mutiara Lumbangaol Isnaini Nurwahyuni Johannes Keynes Harianja Julius Paolo Siregar Khairul Khairul, Khairul Khalis, Tasya Anaya Dzaki KIKI NURTJAHJA Liana Dwi Sri Hastuti Lubis, Putri Amelia Mardhatillah, Siti Margolang, Anggi R. Mars Sella Sinurat Masitta Tanjung Muhammad Zairin Jr Munawwar Khalil, Munawwar Nababan, Esther Sorta Mauli Nasution, Ahmad Luthfi Abdillah Nasution, Tulus I. Nathasya Zaharuddin NUNUK PRIYANI Onrizal Onrizal Pardosi, Sinta R Pera Herawati Puji Cintami Tambun Pulungan, Afran Rouzani Rahman Al Faris Raswin Nasution Ratna Dewi Sinaga Rizki, Rafika Rusdi Leidonald Rusdi Machrizal Safira Mustaqilla Saiful Adhar Siagian, Gunaria Silfy Anisa Nasution Simaremare, Elisabet Rosevenny Sinaga, Ade Angelia Atmanegara Sinulingga, Virna Br Supardi Harahap Supriharti, Deny Tajudddin Siregar Tantri Ayu Syahfitri Ternala A Barus Ternala A Barus Ternala Alexander Barus Ternala Alexander Barus Ternala Alexander Barus Tia Angraini Toberni S Situmorang TRI WULANDARI Virna Br Sinulingga Wasmen Manalu windy windy Winni J. S Simbolon Wira Khairulsyah Wulan Apridamayanti Yoes Soemaryono Yohana, Winda Y. Yunasfi Yunasfi Zulham Apandy Harahap