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DINAMIKA POPULASI DAN STATUS STOK IKAN TEMBANG PUTIH (Escualosa thoracata) DI PERAIRAN KABUPATEN CIREBON BERDASARKAN SPAWNING POTENTIAL RATIO Supriyadi, Adi Spy; Kamal, Mohammad Mukhlis; Boer, Mennofatria
BAWAL Widya Riset Perikanan Tangkap Vol 17, No 3 (2025): Desember 2025
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.17.3.2025.132 - 145

Abstract

The white sardine (Escualosa thoracata) is an essential small pelagic species supporting coastal fisheries in Java's northern waters. This study evaluated the population dynamics and stock status of the species in the coastal waters of Cirebon Regency, using the Spawning Potential Ratio (SPR) as a biological indicator. Field sampling was carried out from December 2024 to August 2025 at principal fishing grounds near the estuaries of Bungko Lor and Cisanggarung. Length–weight data, size distribution, and gonadal maturity stages were analyzed to estimate growth parameters, mortality rates, and key size indicators (Lc₅₀% and Lm₅₀%). The SPR was determined using a length-based approach. The catch was dominated by individuals measuring 66–80 mm total length (TL), with the highest frequency in the 70–74 mm TL class. The length–weight relationship followed W = 0.0000436 L2.6497 (R² = 0.8433), indicating negative allometric growth. The first capture size (Lc₅₀%) was 71.0 mm TL, slightly smaller than the size at first sexual maturity (Lm₅₀%) of 73.0 mm TL. The von Bertalanffy growth parameters were L∞ = 96.08 mm TL and K = 1.60 yr⁻¹. The exploitation rate (E) reached 0.76, exceeding the optimal level (≈ 0.5), while the SPR was 19%, below the recommended biological threshold of 20% needed to sustain recruitment. The white sardine population in Cirebon coastal waters is under heavy fishing pressure, leading to reduced reproductive potential.
Co-Authors . Zairion Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Agoes Mardiono Jacoeb Agus Alim Hakim Agus Atmadipoera Agus Oman Sudrajat Ahmad, Aditiyawan Ali Mashar Ali Suman Ali Suman Ali Suman Aliati Iswantari Apriana Vinasyiam Ariane Koch-Larrouy Arif Miftahul Aziz, Arif Miftahul Arif Wibowo Arif Wibowo Ario Damar Arlita, Kriswidya Ayu, Inna Puspa Beatrix M. Rehatta Beginer Subhan Booth, Hollie Bosman, Ofan Cahyanti, Wahyulia Dade Jubaedah Dade Jubaedah Darmawan, Aldo Dawi, Mario Raja Sani Deni Irawan, Deni Deni Radona, Deni Dewi SLKT Dewi, Nina Nurmalia Dwi Yuni Wulandari Efin Muttaqin Eko Prianto, Eko Elok Faiqoh Enan M Adiwilaga Endah Sri Rahayu Endang Juniardi Endi Setiadi Kartamihardja Endi Setiadi Kartamihardja Fera Permata Putri, Fera Permata Forcep Rio Indaryanto G Yulianto Gadis Sri Haryani Gadis Sri Haryani Gatot Yulianto Gilang Rusrita Aida Grin Tommy Panggabean Hafizh, Ayesha Harahap, Wini Aafini J Haris Setiawan Helmy Akbar Hendrik Sombo I Nyoman Suyasa Iis Diatin Iman Wahyudin Ipambonj, Lisa Irin Iriana Kusmini, Irin Iriana Ismudi Muchsin Ismudi Muchsin Ismudi Muchsin Iwan Hasri Iwan Hasri, Iwan Jabbar, Meuthia Aula Jifi Abu Ammar Jojo Subagja Kadarwan Soewardi Kiagus Abdul Azis Kristanto, Anang Hari Kurniawan Kurniawan La Ode Syahlan S Sagala Larasati, Aulia Nur Larashati, Sekar Luky Adrianto Luky Adrianto Ma'mun Ansori Mala Nurilmala Mana, Ralph Mennofatria Boer Mia Setiawati Mirza Dikari Kusrini Mohamad Jakaria Muhammad Arif Nasution Muhammad Nizar Muhammad Nizar Muhammad Nizar Nabillah, Firja Hasanah NEVIATY PUTRI ZAMANI Niken Tunjung Murti Pratiwi Nugroho, Dwiyoga Nurasiah Riza Nurlisa Alias Butet Nurseptiani, Sifa Okta Simon Oktavia, Nia Otong Zenal Arifin Prakoso, Vitas Atmadi Pratiwi, Niken TM. Prihatiningsih Prihatiningsih Radityani, Fitri Afina Rahmat Kurnia Ramdayani, Kasturi Ridwan Affandi Ridwan Affandi RIDWAN AFFANDI Rika Astuti Risa Tiuria Rizsa Mustika Pertiwi Robin Robin, Robin Rohmah, Lailia Nur Ronny I. Wahju Rudhy Gustiano Rumagia, Faizal Sagala, La Ode Syahlan S Sakina, Edna Samir, Octavianto Sayaza, Mas Davino Shinta Pardede Sifa Nurseptiani Sigid Hariyadi Sigid Hariyadi Singgih Afifa Putra Siti Rahmawati Stuart J Campbell Sukmaraharja Tarigan Sulistiono Sulistiono Sulistiono Supriyadi, Adi Spy Surjanto, Didiek Syamsiar, Syamsiar Syarifah Nurdawaty T Tarsidin Taryono Taryono, Taryono Tatag Budiardi Thomas Hidayat Tjahjo Tri Hartono Trie, Triyanto Triyanto Triyanto Triyanto Triyanto Triyanto, Triyanto Utama, Darma Wahidin, Nurhalis Widoretno, Mey Ristanti Wildan, Dudi Muhammad Y. Rahmah Yanti Sinaga Yulia Fitrianingsih Yunizar Ernawati Yunizar Ernawati Yusli Wardiatno Yuspita, Ni Luh Eta