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Journal : limnotek

Ecological Role of Siombak Lake as a Nursery and Feeding Ground for Aquatic Species in the Belawan Estuary, Indonesia Ahmad Muhtadi; Ahyar Pulungan; Rizal Mukra
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 31 No. 2 (2025)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2025.9340

Abstract

Tidal lake is a coastal lake whose water condition is influenced by the dynamics of tides. This lake serves as a habitat for a diverse array of aquatic biota, including freshwater, brackish, and marine species. This study aims to describe the distribution of larvae, juveniles, crustacea, and adult fish in the context of the coastal lake's role as a nursery and feeding ground. The study was conducted from September 2018 to August 2019, at Lake Siombak, a coastal lake located in the Belawan River estuary along the northern coast of Medan City, Indonesia. Data were collected at high and low tides during the full moon. Larva and juvenile fish? sampling used larval nets with a mesh size of 300 μm and a diameter of 60 cm, while adult fish were caught with gill nets with a mesh size of 1 inch and a dimension of 10 × 2 m. Crustaceans were captured with traps. The research found nine families consisting of six fish families, two crustacean family, and one cnidarian family. The abundance of larvae and juveniles found was 17 to 1797 individuals per 100 m-3. At the high tides, the composition of Ulmaridae (jellyfish: Aurelia aurita) that was caught reached 57.7%. While at low tides, there were more Penaeid families in the Mysis phase, reaching 78.6%. The abundance of Mysis (Penaeid) and jellyfish indicates that the lake serves as a nursery ground for post larvae crustaceans and jellyfish. The presence of adult fish migrating from the sea and Belawan River indicates that the lake functions as a feeding ground in the Belawan estuary.  Therefore, Lake Siombak still plays a crucial role as a nursery and feeding ground for fish, crustaceans, and jellyfish originating from the Belawan River estuary and its surrounding areas. Preserving the sustainability of this lake is crucial to ensuring the continued productivity of fisheries in the Belawan River estuary.
Co-Authors AA Sudharmawan, AA Adelia, Riska Adha Putra, Chairunas Adriana Y.D. Lbn Gaol Agnes, Jistisya Maria Ahmad Muhtadi Ahmad Muhtadi Ahyar Pulungan Aina Azzahra Aina Mardiah Dalimunthe Aini Nurul Alfi Nura Siregar Aline Gustri Yolanda Harahap Amanda, Priska Amelia Patra Harahap Amira Nasution, Aisyah Amrizal Amrizal Angel Maria Yosephine Annisa Annisa Annisa Pristy Anugerah, Randy Anwar, Syakila Aritonang, Margareth Shanastasha Aritonang, Nathasya Inneke Asih Maulida Hasni Asmida, Lisa Ayu Wulandari Bangun, Dewi Ribreka Br Barik, Ahsanul Baringbing, Siska Juliana Barus, Dea Natalia Bella Junniar, Amanda Camara, Jun S. Chairunas Adha Putra Chairunas Adha Putra Chyntia Dwi Camelia Cindi Claudia Sipayung Damaiyani Dealova Sihite, Yolanda Desi Novianty Br Ginting Dicky Ray’za Sianturi Dimas Arya Dionesa Sitanggang, Joyce Basana Diska Qolbu Mutia Donna Arista Stefani Sinaga Dwi Amanda Dwita Syahfitri, Intan Elza Amanda Ennita Fauziah Eri Yusni Estera Falahani, Falahani Fatmawati, Ade Fauziah Fauziah Fazira, Hafizha Gaol, Lumban Gebyta Yani Ndaha Gebyta Yani Ndaha Gilang Pradana Gilang Pradana , Tengku Giovani, Amanda Grace Violencia Sinaga Gresia Sinaga Gultom, Dita Zahara Gultom, Wirda Resinta Gultom, Yosa Martini Hairen Br Kaban Hairen Br Kaban Hana Grace Samaria Sitorus Harahap, Aline Gustri Yolanda Harahap, Cici Maulidiah Hariyadi, Itra Hartono, Adi Hasibuan, Nitya Ilmi Hasruddin Hesa Dwinata Pandia Hibatunnaila Ar-Rizki Hijriyanti, Putri Husna, Raudhatul Imelda Nababan Ipanna Enggar Susetya, Ipanna Enggar Irene Purba, Helga Ishak, Mohd Yusoff Ivo Elsa Samaria Hutabarat Jumiati Hasibuan, Rizki Khalisyah, Zhafira Klarindha, Winda Kudadiri, Wahyuni Sada Arihta Lamtiurma Lumbantoruan Lingga, Nur Anelia Louisa Assian Sinaga Lubis, Rizka Lumbangaol, Sriyanti Manalu, Rosa Rini Kezia Manurung, Dhea Amelia Marbun, Yolanda Maria Shintauli Panggabean Marlinda Nilan Sari Rangkuti Maureen Efriyanti Sitinjak Melfa Romanna Elisabet Meuthya Reayani Padang , Alya Mira Rangkuti, Sailana Monita Silalahi, Ester Tania Muammar Muammar, Muammar Muhammad Fadhli Muhammad Yusuf Muhammad Yusuf Muhammad Yusuf Nasution Munthe, Gabriella Mustaqim Mustaqim Mustaqim Mustaqim Mustaqim Mustaqim, Mustaqim Nahdah, Hadyan Wafi Nazmyra Siregar, Nayla Nazwari, Aura Nisa Holida Siagian Nurul Ummi Lubis Nuzalifa, Yosie Ulfa Oktavia, Dhea Pandiangan, Christin Magdalena Pandiangan, Pinta Grace Pangaribuan, Selfiana Panggabean, Nurul Hikmah Panjaitan , Anisali Pasaribu, Fadilah Pasaribu, Khairina Hafiza Permata, Bintang Rizki Pradana, Gilang Pretty Thalia br Saragih Pristy, Annisa Puan Adila Putri Aldina Harahap, Elis Putri Diana Putri Fransiska Saragih Putri Patricia Pandiangan Putri, Allysha Dinda Putri, Dwi Fadhillah Putri, Nadilla Qadar Hasani Rabiah Afifah Daulay Rafeah Husni Rahel Octavia Siahaan Rahima, Tazkia Khansa Putri Rangkuty, Sailana Mira Ratno, Suyit Regina Anastasia Br.Gultom Rifka Denisa Cibro Rini Hafzari Ritonga, Viony Azzahra Rosa Sari Amalia Nasution Rudi Munzirwan Siregar, Rudi Munzirwan Rusdi Leidonald Ruth Cessaminar Gultom Ruth DamaiYanti Sari Siagian Sabrina Pasaribu, Annisa Safitri, Yunda Sagala, Nur’aini Sailana Mira Rangkuty Salsabila Saqinah Pasaribu Samosir, Ayu Triputri Samosir, Newche Rolima Sangkuti, Dinda Sapna Marsyalina Br Barus, Emia Saragih, Azra Nabila Satipa, Oriza Sembiring, Christine Natalia Br Sembiring, Safira Salsabilla Ayudia Balqis Septiani, Findi Servina Indah Yani Br Tarigan Sesil Audia Br Sibarani Shafwan S. Pulungan, Ahmad Shinta, Dwi Shopia Isyfi, Aprillia Sianturi , Stephanie Agustin Sianturi, Betaria Sonata Siburian, Roulina Siburian, Sri Yuliani Rezeki Sihombing, Nurhanifah Br. Silaban, Friends Silaban, Pita Valentina Silalahi, Maria Handayani Simanjuntak, Debora Simaremare, Inda Vandiwinata Simorangkir , Celine Agustina Simorangkir, Marco Antonio Sinaga, Aulia Sinaga, Gunis Enzlen Sinaga, Putri Wanna Oktavia Sinambela, Sarianto Sinta Wulida Mustasfa Siregar, Alya Anugrah Siregar, Halimatussyakdiah Siregar, Rara Afifah Sitanggang , Robella Sulastri Siti Aisyah Sitompul, Naila Zahwa Sitorus , Nurdayanti Sitorus, Herman Aldona P. Sri Wahyuni Siregar Stevani Azharia Br Ginting Suci Rahmawati Suci Rahmawati, Suci Syah, Putri Aulia Syahra, Assyfa Talita Salsabilah Tampubolon, Qori Afifah Tarigan, Adelia Br. Tarigan, Osmondo Jorey Pratama Tri Amanda Siregar Tri Harsono Tri Harsono Turrahmah, Fadilla Ulandari, Sri Ulina Silalahi, Dewi Ratna Sari Umayra Varanth, Sree Viknes Warohmah, Sakinah Widia Ningsih Widia Ningsih Widia Ningsih WIDYA ANDAYANI Widya Andayani Widya Arwita wulandari, atika Wuriyani, Elly Prishasti Yanda Febry Gracea Br.Tarigan Yanti, Sopi Yohana L Purba Zain, Ulfi Khairani