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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.
Pelatihan Pembuatan Kain Eco-Print bagi Ibu PKK di Kelurahan Lubuk Begalung Nan XX r maliza, rita; Nazri Janra, Muhammad; Santoso, Putra; Idris, Muhamma; Nofrita, Nofrita; Novarino, Wilson; Herwina, Henny; Fadillah; Hamdi Ibrahim, Muhammad; Putri Pratama Elisa, Tasya; Aini, Wardahtul; Marchellino Irwan, Reziq; Afif, Muhammad; Ilham Samudra, Muhammad
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4656

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Program Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan keterampilan Ibu-Ibu PKK di Kelurahan Lubuk Begalung Nan XX, Padang, dalam memanfaatkan pewarna alami dari daun mangga untuk menghasilkan kain eco-print yang ramah lingkungan. Permasalahan yang dihadapi adalah rendahnya pemanfaatan sumber daya lokal serta minimnya keterampilan ibu-ibu PKK dalam menghasilkan produk bernilai ekonomi. Kegiatan ini memberikan pelatihan dua teknik eco-print, yaitu teknik steam dan pounding, yang memungkinkan peserta menghasilkan motif kain alami menggunakan pewarna dari tanin daun mangga. Metode pelaksanaan meliputi penyuluhan dan praktik langsung, di mana peserta belajar membuat pola kain eco-print dengan memanfaatkan dedaunan dan bunga yang tersedia di lingkungan sekitar. Hasil kegiatan menunjukkan peningkatan pemahaman dan keterampilan peserta dalam eco-print, serta antusiasme untuk mengembangkan produk berbasis kerajinan ramah lingkungan. Pelatihan ini diharapkan dapat membuka peluang ekonomi baru bagi masyarakat dan mendukung pelestarian lingkungan melalui inovasi kerajinan berbahan alami.
SEBARAN SPASIAL SUHU PERMUKAAN LAUT DAN KLOROFIL-a PADA DAERAH PENANGKAPAN IKAN CAKALANG (Katsuwonus pelamis) DI PERAIRAN SUMATERA BARAT Nofrita, Nofrita; Nurdin, Jabang; Fitra, Ramadani; Savitri, Vivi; Bintari, Andhani N.; Saniyyah, Jauharah; Sumartin, Harry
Jurnal Biologi Universitas Andalas Vol 12 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.12.1.66-72.2024

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West Sumatra waters is one of the potential fishing grounds for skipjack tuna. Oceanographic factors become the primary factors that limit the distribution and abundance of fish. This research aims to understand the spatial distribution of chlorophyll-a and sea surface temperature, and their utility for estimating potential fishing areas in the waters of West Sumatra. The data collection of fish catching area coordinates was carried out from June to July 2023. The sea surface temperature and chlorophyll-a data were downloaded from the website http://oceancolor.gsfc.nasa.gov. The research results found that the sea surface temperature in the waters of West Sumatra from June to July 2023 ranged between 27.9°C to 33.5°C, with an average of 30.25°C, while the chlorophyll-a ranged from 0.014 mg/m3 to 1.684 mg/m3, with an average value of 0.9515 mg/m3. The potential fishing areas for Skipjack Tuna identified during the research in the waters of West Sumatra were around Siberut Island in the Mentawai Islands, at the coordinates of 98°98’15.43"E and 01°97’32.35"S 99°27’67.95"E and 01°98’71.43"S.
Komposisi dan Struktur Komunitas Zooplankton di Danau Diatas, Sumatera Barat Setiawati, Sulis; Izmiarti, Izmiarti; Nofrita, Nofrita
Bioeksperimen: Jurnal Penelitian Biologi Vol 4, No 2: September 2018
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v4i2.6880

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Penelitian tentang komposisi dan struktur komunitas zooplankton pada di Danau Diatas, Solok Sumatera Barat telah dilakukan pada bulan April sampai September 2016. Penelitian ini bertujuan untuk mengetahui komposisi dan struktur komunitas zooplankton di Danau Diatas kabupaten Solok, Sumatera Barat. Penelitian ini menggunakan metoda Purposive Sampling di empat stasiun. Sampel Zooplankton diambil menggunakan pompa air Alkon dan planktonnet.  Zooplankton yang didapatkan 44 spesies dengan komposisi Protozoa 5 spesies, Rotifera 22 spesies, Cladocera 13 spesies, dan Copepoda 4 spesies. Kepadatan total 20683,58 ind/l. indeks diversitas di Danau Diatas yaitu berkisar 1,043 -1,45. Indeks equitabilitas berkisar 0,31-0,54. Berdasarkan strata indeks equitabilitas berkisar 0,42-0,52, dan komunitas antar stasiun relatif seragam dengan indeks similaritas 53,06-61,53%. Study of composition and community structure zooplankton of Diatas Lake, Solok District, West Sumatera, from April until September 2016. The purpose of this research was to know the composition and structure of zooplankton. The research was conducted by using Purposive Sampling method with four research station. the samples by using water pomp machine and plankton net. The result showed that zooplankton it was found 44 zooplankton species with composition of Protozoa 5 species, 22 species of Rotifers, 13 species of Cladocera, and 4 species Copepods. The population diversity average 1723,6 ind/l.  diversity index (H’) ranged from 1,04 – 1,45, Equitability index (E) ranged from 0,31-0,54, Sorensen Similarity index ranged from 53,06 – 61,53 %.  
Diatom Similarity in Experimental Drowning of Rattus norvegicus as Forensic Evidence for Determining The Drowning Site Hidayatulloh, Taufik; Nofrita, Nofrita; Nurdin, Jabang
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10565

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Diatom analysis is one of the most reliable indicators for confirming death due to drowning. Diatoms are microscopic algae that can enter the respiratory tract during water aspiration and provide ecological evidence linking the victim to the drowning site. This study aimed to analyze the presence of diatom species and taxonomic similarity between water samples and the internal organs of experimentally drowned white rats (Rattus norvegicus) to validate their use as a forensic model. Experimental drowning was performed using water of the Batang Arau River, West Sumatra in the February 2024 to January 2025. In this study, we were found 56 species of diatoms in the waters, while 31 were found in white rats' internal organs. The highest diversity found in the esophagus (31 species) and lungs (19 species). No diatoms were detected in the heart, liver, or kidneys. The distribution pattern, limited to the respiratory system, indicated early drowning aspiration with no systemic circulation. The typical species is a diatom species only found in water and in the internal organs of white rats in specific locations. Achnanthes adnata, Cocconeis pellucida, Cocconeis pseudomarginata, Eunotia bilunaris, and Gomphonema pumilum are typical species at Location I. Amphora bigibba and Amphora bioculata are typical species at Location IV. At the same time, Navicula viridula is the typical species at Location VI. These findings validate the white rat as an effective experimental model for drowning research and demonstrate that species-specific diatom fingerprints can aid forensic investigators in determining both the vitality of drowning and the probable crime scene.
Bioassesment of Batang Air Dingin Water Quality by using Macrozoobenthos in Koto Tangah District, Padang City Risda Afifi Nasution; Nofrita Nofrita; Eggy Triana Putri; Izmiarti Izmiarti
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 1 No. 01 (2020)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.495 KB) | DOI: 10.25077/aijans.v1.i01.18-24.2020

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This study aims to determine the composition and structure of the macrozoobenthos community in Batang Air Dingin and water quality based on BMWP ASPT. This study used a survey method in determining the station by purposive sampling, based on typhical environmental condition along the river. Macrozoobenthos samples was collected by using surber net 30x30 cm2. The result showed the community in the form of Gastropods 6 genera, Insecta 26 genera, Oligochaeta 1 genus, and Hirudinea 1 genus. Total density of macrozoobenthos in the Batang Air Dingin river was 1182,22ind/m2 ranging from 180,00 ind/m2 to 402,22 ind/m2 with the highest density was found in the first station and the lowest at station four. The predominant type found at each station is different, station I is Elophyla, Neopherla, Hydropsyche; station II Eukifferiella, Polypedilum, Elophyla, Hydropsyche; station III Clithon, Eukifferiella, Polypedilum, Orthocladius; station IV Clithonand Thiara. The diversity of macrozoobenthos in Batang Air Dingin river range between 1,95-2,51 is classified as moderate with even distribution (E=0,84) range between 0,81-0,89. Batang Air Dingin water quality using BMWP ASPT from upstream to downstream range between 6,12 – 3,5. Classified unpolluted to heavily polluted.
Marine Microalgae as Indicators of Heavy Metal Pollution in Coastal Ecosystems Fitri, Wiya Elsa; Putra, Adewirli; Syamsuardi, Syamsuardi; Nofrita, Nofrita; Deswati, Deswati
Jurnal Kesehatan Medika Saintika Vol 16, No 2 (2025): Desember 2025
Publisher : Stikes Syedza Saintika Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30633/jkms.v16i2.30726

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Heavy-metal contamination remains a critical ecological threat in tropical coastal ecosystems, particularly along the West Coast of Sumatra, where concentrations of Pb, Cd, and Cu frequently approach or exceed biological stress thresholds. This article evaluates marine microalgae as indicators of heavy metal pollution, combining global biomarker evidence with region-specific hydrodynamic conditions, referring referring to publications from the last six years. The findings reveal strong cross-study convergence in microalgal responses, including chlorophyll degradation, photosynthetic inhibition, oxidative stress, and antioxidant enzyme activation. These biomarker patterns align closely with local observations from Sumatra, indicating that microalgae operate within exposure ranges known to induce sublethal physiological impairment. Hydrodynamic modulation driven by monsoon cycles further amplifies metal bioavailability, producing alternating acute and chronic stress regimes that chemical monitoring alone often fails to detect. This review provides the first integrated assessment linking microalgal biomarker evidence with monsoon-regulated metal dynamics in Indonesian coastal waters. By synthesizing mechanistic, ecological, and environmental data, the study establishes a robust scientific foundation for adopting microalgae as a core component of early-warning systems and coastal biomonitoring frameworks. The findings also highlight methodological gaps and propose future directions to strengthen monitoring programs within a One Health perspective
Pengembangan ESGP Kelurahan Lambung Bukit Kecamatan Pauh Kota Padang dengan Ikan Hias Mansyurdin, Mansyurdin; Asful, Ferdhinal; Nofrita, Nofrita; Maliza, Rita; Ashrifurrahman, Ashrifurrahman; Herwina, Henny; Nabila, Sylvia; Syabila, Hutri Dinda; Elisa, Tasya Putri Pratama; Kusuma, Hendra
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 7 No. 1 (2026): Edisi Januari - Maret IN PROGRESS
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ekowisata Sungkai Green Park (ESGP) terletak di kelurahan Lambung Bukit Kecamatan Pauh Kota Padang. Luas kawasan 4 ha dengan topografi berbukit, dan kekhasan konservasi habitat pohon Sungkai. Bentuk kegiatan ekowisata yang sudah terlaksana yaitu agrowisata dan perkemahan. Jumlah kunjungan masih didominasi oleh peserta kemah, sedangkan destinasi agrowisata belum menjadi daya tarik. Berdasarkan potensi kelurahan, dilakukan pengembangan ESGP dengan ikan hias. Tujuan kegiatan ini yaitu memberikan pengalaman dan keterampilan kepada anggota P4S Sungkai Permai dalam mengembangkan ESGP dengan kolam ikan hias.  Kegiatan pengembangan dilaksanakan dengan metode Participatory Action Research, melibatkan partisipasi aktif dan kolaboratif mitra P4S Sungkai Permai. Pada kawasan ESGP telah dibuat lima kolam yang diisi dengan 24 jenis ikan hias. Berdasarkan evaluasi kelayakan terdapat 12 jenis ikan hias yang layak dikembangkan pada kolam terbuka kawasan ESGP, yaitu Glofish Tetra, Glofish Tiger Barb, Dwarf Gourame, Angle Fish, Guppy, Platy Molly varian Golden Black, Glofih Danio, Komet Slayer, Red Jewel, Blue Jewel, dan Zebra Tilapia.
Co-Authors . Mansyurdin A.A. Ketut Agung Cahyawan W Abd. Rasyid Syamsuri Adewirli Putra Afrizal Sano Ahmad Yazid Aidil, Dyta Rabbani Aini, Wardahtul Alfaiz Alfaiz Asful, Ferdhinal Ashrifurrahman, Ashrifurrahman Asmaiwaty Arief Aszareta, Muhammad Andoni Aziz, M. Abdul Bayu Marsha. Ds Bintari, Andhani N. Bintari, Andhini Nur Bramadi Arya BUSTANUL ARIFIN DAFIT SATRIA Dapit Pernalis Deden Tri Sang Putra Destaria Sudirman Nurhaty, Destaria Sudirman Deswati Deswati Dewi Imelda Roesma Djong Hon Tjong Dosi Juliawati EFATRICIA NIATI Efrizal Efrizal Eggy Triana Putri Eka Sefputri Elisa, Tasya Putri Pratama Elmayyeti Elmayyeti Elvi Susanti Eti Yerizel Fadillah Fadillah Fadillah Fadjar Goembira Faiz, Alfaiz Fani Karmila Fitra, Ramadani Fitri Yumilda Fitria Kasih Frenadin Adegustara Gustia Manasari Hamdi Ibrahim, Muhammad Hamida Hamida Hasneli, Hasneli Hendra Kusuma Hengki Yandri Henny Herwina Idris, Muhamma Ilham Samudra, Muhammad Indra Ibrahim Irvan Apandi Ismi Auldra Efendi IYAS IYAS Izmiarti Izmiarti, Izmiarti Jabang Nurdin Janra, Muhammad Nazri Lasma Farida Luzi Ratnasari M. Haris Maliza, Rita Marchellino Irwan, Reziq Marisa Nanda Marwisni Hasan Melda Krisna Dasvita Mellyarti Mellyarti Mellyarti Syarif Mhd Nur Allatif Muhammad Afif Muhammad Idris Muhammad Idris Muhammad Nazri Janra Murisal Murisal muryani, nova Musda Rukmana Melka Nabila, Sylvia Nazri Janra, Muhammad Nefri Yanra Niki Yulita Herman Nola Karmila Sari Noliza Noliza Novia Susana Novita Ratna Sari Olly Norita Tetra Pratama Elisa, Tasya Putri Pratama, Raihan Anugrah Prawira, Furqan Dwiki Lintang Puji Yani Pratama Putra Santoso Putri Pratama Elisa, Tasya Putri, Syntia Mai r maliza, rita Randi Saputra Reski Puspita Sari Ridho, Muhammad Syifa'ur Rila Rahma Mulyani Rini Septiani Yunas Risda Afifi Nasution Robby Jannatan Ryan Hidayat Rafiola Salis, Viola Mutiara Saniyyah, Jauharah Sari Murni Sari, Azmatul Khairiyah Savitri, Vivi Silva Lestari Sinurat, Arthauly Yopita Sulis Setiawati Sumartin, Harry Syabila, Hutri Dinda Syaifullah Syaifullah Syamsuardi Syamsuardi Taufik Hidayatulloh Taufiq Ihsan Tofrizal Tofrizal, Alimuddin Wilson Novarino Winda Rahayu Yasir Muharram Fauzi Yelvi Monasari Yulinar Yulinar Yuzarion, Yuzarion Zaini Zaini