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Journal : hayati journal of biosciences

The Effect of Tides on Plankton Communities in the Belawan River Estuary, North Sumatra Leidonald, Rusdi; Muhtadi, Ahmad; Harahap, Cici Maulidiah; Mukra, Rizal; Ishak, Mohd Yusoff; Hasani, Qadar
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.114-128

Abstract

The Belawan Estuary is a highly important economic and logistics hub in Sumatra, serving as the primary maritime transportation route in western Indonesia. This estuary is also utilized for multiple purposes, including industrial activity, residential areas, and fisheries. These activities inevitably influence water quality, which in turn affects the presence and population dynamics of plankton in the estuary. This study aimed to examine the spatial and temporal distribution of plankton communities in the Belawan Estuary. Observation points were selected from eight locations representing different activities and regions, including areas near the sea, the middle section, and areas close to land. Plankton samples were collected during high and low tides following the tidal cycle (new moon, first quarter, full moon, and last quarter). Principal component analysis was performed to determine the influence of tidal cycles on plankton composition and abundance in the estuary. A total of 64 plankton genera from 16 classes were identified in the estuary. spatially, the highest abundance was recorded in the mouth estuary during low tide. Temporally, the highest plankton abundance across stations was during the first quarter phase at low tide. These findings indicate that tidal cycles significantly influence plankton abundance in the Belawan Estuary. This phenomenon is attributed to the tidal currents that transport nutrients from the lower layers to the surface waters during both high and low tides. Changes in plankton abundance and species composition can serve as indicators of water fertility in this region and reflect the impacts of changes in environmental conditions.
Co-Authors A. Dardiri Hasyim Abbas Alfuti , Abil Abnur Kamala, Siti Adenia Constansia Sitepu Adil Junaidi Ahmad Rizki Aji, Egi Setia Ajuan Ritonga Almira, Della Ami Tjitraresmi, Ami Amirah Amirah Andari, Ella Anggita Della Lestari Ariston, Lovedrian Ashshiddiq, Muhammad Arif Asmadi asmadi Asy Syifa, Khadijah Azahirin Bagus Equity baihaki, imam Begum, Salma Berliana, Melisa Intan Binti Nur Asiyah Br. Tarigan, Sri Masnita BUDI UTOMO Citra Pangestu D. Ariska D. Ariska, D. Damanik, Mhd. Ridha Syafi'i Dani Sumaryadi Darma Bakti Daulay, Achmad T. Dede Yuanda Desrita Desrita Desy Ariska Desyandri Desyandri Dewinta, Astrid Fauzia Dinarta Hutabarat Dwi Prasetyo DWI SURYANTO Eli Halimah, Eli Elvira, - Emma Surahman, Emma Entris Sutisna, Entris Eri Yusni Etty Rabihati Eulis Safina Eva Feriadi Eva Lia Risky Sinaga Eva Ryanti F. F. Rais F. F. Rais, F. F. Fadhilah, Amanatul Fahmi Fadhli Rais Febriyanti Panjaitan Fuad Hasan Gatera, Vesara A. Gusti Zulkifli Mulki Habibi, Arya Yusuf Hafiyyan, Qalbi Harahap, Cici Maulidiah Harahap, Muhamad Haikal Firyaldi Hartanto Wahyu Sasongko Hasan, Darul Herdaningsih, Sulastri Herdaningsih, Sulastri Herdaningsih, Sulastri Hesti Wahyuningsih Hidayati, Tita Kosima Hillary, Janne Husaini, Hasbi I Gusti Ngurah Antaryama Ida Musfiroh -, Ida Musfiroh ikhwan Arief Purnama Imam Baihaqi IMROATUL CHUSNIAH Ipanna Enggar Susetya, Ipanna Enggar Irene anggraini Irvanul Arifin, Mohammad Ishak, Mohd Yusoff Isten Sweno Tamba Jamiyanti, Eva Jannah, Sutra Wardatul Junaidy, Adil Kadarwan Soewradi KANIA NABILA FAJRIANTI Kartasasmita, Rahmana E Kartasasmita, Rahmana E Kembaren, Natasyha Pebrina Br Sembiring Keri Lestari Khairunnisa Kurlillah, Rizki Kurniawan, Pramudya Lukky Mahendra Luky Mahendra Mahardi, Putri Pratama Manalu, Natasya Rebekka Manullang, Kristina Natalia Manurung, Bunga Ulita Marufi, M. Marwan, Abang Maser, Wahyu Haryati Melisa Intan Barliana Mey Susanti Miftahul Jannah Miswar Budi Mulya Moelyono Moektiwardoyo Moh. Rosan Taufel Al Farobi Moh.Rosan Taufel Alfarobi Mohammad Basyuni Muammar Muammar Muhammad Hasan Basri Muhammad Ma’rufi Muhammad Reza Cordova, Muhammad Reza Muhammad Riza Kurnia Lubis, Muhammad Riza Kurnia Mulyoto mulyoto N. Azmi N. Azmi, N. Nababan, David NADYA INDAH DEWANTI, NADYA INDAH Nanda Putri Nasution, Decy M. Carolina Nurmala Sari Nurmatias Nurmatias Nursyamsiah, Tresna Nursyamsiah, Tresna NURUL ANNISA Nurul Azmi Orbita R. Dhuha Pardamean Lubis Pasaribu, Rihan Addilah Patihul Husni Perangin Angin, Imanuel Kemenangenta Perwira, Anggun Putri Pesta Saulina Sitohang Pesta Saulina Sitohang Pindi Patana Pratiwi Pratiwi Priyogo, Prengki Pulungan, Parhan Punomo, Punomo Purba, Theresia Widi Astuti Putri Churnia Arifin Qadar Hasani Randy Setiawan, Randy Raswin Nasution Rendra Setiawan, Gusti Resky, Indah Anjar Ridwan, M. Deny Rifqi Rama Dhani Rizal Mukra Rizal Rizal Rizka Alifia Rizki Eka Putra Rizki Ridoan Rizki, A. Rosanti, Indah Rudolf Y. Ompusunggu Rusdi Leidonald Sabilah Fi Ramadhani Sandy, Sarah D. Sarah Diba Sandy Sarpawi, Sarpawi SHAFIRA SHAFIRA Sholih, Mally G. Siahaan, Vania S.P Silaban, Matthew Federich Willyam Simaremare, Elisabet Rosevenny Sinurat, Ries Ruth Rytond Siregar, Rizky Febriansyah Siregar, Zufriwandi SITI NURUL KHOTIMAH Siti Saidah SITI SAIDAH Slamet Ibrahim - Sri Hartini Suria Masriani Sinaga Syafriadi Syafriadi Syahrani, Deny Syarani, Deny Taryono, Taryono TIJANIYAH TIJANIYAH, TIJANIYAH Toibullah Siregar Triwilaswandio Wuruk Pribadi Utomo, Satriyo Varanth, Sree Viknes Vina Maratus Salsabila warda, Sutra Wardatul Jannah, Sutra Winarni, Rina Yasmiwar Susilawati Yunasfi Djayus yunasfi yunasfi Yunasfi Yunasfi Yunasfi, Yunasfi Zaenuddin Zefri Ade Gurukinayan Zufriwandi Siregar Zulham Apandy Harahap Zulham Apandy Harahap