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Jabang Nurdin
Departemen Biologi Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Andalas
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Reproductive Biology of Frigate Tuna (Auxis thazard Lacepède, 1800) Caught by Fishermen in West Sumatra Waters Nofrita, Nofrita; Nurdin, Jabang; Bintari, Andhini Nur
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8004

Abstract

The frigate tuna (Auxis thazard) is important to the fishing industry in West Sumatra. The increasing demand for frigate tuna causes this fish to continue to be exploited. Exploitation carried out continuously can reduce frigate tuna production, so research needs to be done. The research was conducted to: (1) Know the growth pattern and factor condition of frigate tuna (A. thazard) in West Sumatra waters; (2) Know the reproductive biology of frigate tuna (A. thazard). Samples were collected from fishermen's catch in the waters of West Sumatra. Random sampling was conducted, and samples were measured for length and weight, followed by dissection to ascertain sex ratio, gonadal maturity level, gonadal maturity index, and fecundity. The results indicated that the fish's length ranged from 350 to 475 mm, with an average of 401.48 mm, and their weight ranged from 408 to 1,339 grams, with an average of 755.8 grams. The growth pattern is identified as positive allometric (b>3), indicating that weight gain surpasses length increases. The condition factor is in stable condition with an average of 1.24. The sex ratio is in an unbalanced condition with a ratio of males and females of 0.9: 1. The level of gonad maturity obtained is GML III and GML IV. The gonad maturity index of male fish ranged from 1.71 to 3.04 and female fish from 1.28 to 2.50. Estimated fecundity ranged from 261,468 to 2,775,590 grains. Based on several factors included in this study, the reproductive biology of frigate tuna in the waters of West Sumatra is favorable.
Co-Authors . Mansyurdin Aadrean Aadrean Abdi Dharma AFRIZAL AFRIZAL Afrizal S Ahmad Mursyid Ahmad Mursyid Ami Hidayat Amrina, Elita Anjas Anjas, Anjas Anjas Asmara Aprisal Ardinis Arbain ARIEF A. PURNAMA Armen Lusi Ayu Andira Bintari, Andhini Nur Dahelmi Dahelmi Dea Rahayu Silviana Efrizal Efrizal Eli Ratni Elita Amrina Elni Fatimah Fajri Hidayat Fuji Astuti Febria Fuji Astuti Febria Gusna Merina Gusna Merina Gusna Hanif Fadly Heffy Utami Henny Herwina Heru Handika Ikhsanul Adli INDRA J. ZAKARIA Indra Junaidi Zakaria Izmiarti . Izmiarti Izmiarti, Izmiarti Janra, Muhammad Nazri Jasmi Jefrial Santoso Jenie Wulandari Jufri Marzuki Lusi Andalisa Mahdi Mahdi Mahdi Mahdi Mahfud Huda Mairawita, Mairawita Maliza, Rita marsia pela Marusin, Neti Miftahul Ilmi Mildawati Mildawati Mira Prima Putri Muhammad Idris Muhammad Syahid Ridho Nabilah Rahmachila Azura Neti Marusin Nindy Ladyfandela Nofrita Nofrita Nofrita Nofrita NOVA AMELIA Nurhidayata Bin Syaiful Purnawan Purnawan Purnawan Purnawan Putra Santoso Radilla Silmiah Rama Nanda Ramadanti, Dhea Ranny Syafitri Reffi Aryzegovina Reki Kardiman Reszi Juniarmi Rezi Junialdi Rezi Junialdi Rika Hariance RINA M.Si WIDIANA S.Si Rina Oktavianti Rio Deswandi Rizaldi Rizaldi Rizaldi Rizaldi Rizki Aziz Rudi Febriamansyah Saniyyah, Jauharah Sindi Mardatila Sirajul Fuad Zis Sirajul Fuad Zis Siti Hajjir, Siti Siti Salmah Solfiyeni Solfiyeni Sri Setiawati Sri Setiawati Suci Frimanozi Syakira Tiara Rezvi Syami Nilawati Syamsuardi Syamsuardi Tomi Kasayev Vivi Safitri Wandanil Putra Wandanil Putra Wido Rizki Albert Wilson Novarino Yonariza Yonariza Yonariza Yonariza Yuerlita Yuerlita Yuerlita Yuli Wendri Yulistriani, Yulistriani