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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Bimbingan dan Konseling Jurnal Biologi Universitas Andalas Psikis : Jurnal Psikologi Islami Bioeksperimen: Jurnal Penelitian Biologi BioCONCETTA Jurnal Counsellia JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Biologi Tropis Jurnal Hilirisasi IPTEKS (JHI) JURNAL ILMU PENDIDIKAN AHLUSSUNNAH Jurnal Pengabdian kepada Masyarakat Nusantara Andalasian International Journal of Agricultural and Natural Sciences
Nofrita Nofrita
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Food Composition of Frigate Tuna (Auxis thazard Lacepède,1800) Caught by Fisherman in West Sumatra Waters Saniyyah, Jauharah; Nofrita, Nofrita; Nurdin, Jabang
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.v25i1.8002

Abstract

Frigate tuna (Auxis thazard) is a pelagic and neritic fish resource that has economic value. Fish diet is one of the important information in monitoring the sustainability of fisheries resources in the future. This study aims to determine the composition of food and determine the Index of Preponderance of frigate tuna caught by fishermen in West Sumatra waters. The method used in this study was random sampling by taking 98 samples of frigate tuna obtained from the catch of fishermen in West Sumatra waters landed at the Air Bangis Fish Landing Center, West Pasaman Regency, and Gaung Fish Auction Site, Padang. The analysis used the Index of Preponderance to determine the main food, additional food, and complementary food. The results showed the composition of food in the stomach of frigate tuna consisted of 3 groups of organisms, namely zooplankton (61.04%), phytoplankton (31.82%), and pisces (7.13%). The main food of frigate tuna is zooplankton (62.10%), while the additional food are phytoplankton (27.73%), and pisces (10.16%). The availability of frigate tuna food in West Sumatra waters supports the sustainability of the frigate tuna population in these waters.
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

Abstract

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

Abstract

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

Abstract

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

Abstract

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.
Co-Authors . Mansyurdin A.A. Ketut Agung Cahyawan W Abd. Rasyid Syamsuri 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 Dewi Imelda Roesma Djong Hon Tjong Dosi Juliawati EFATRICIA NIATI Efrizal Efrizal Eka Sefputri 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 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 Nasution, Risda Afifi 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, Eggy Triana Putri, Syntia Mai r maliza, rita Randi Saputra Reski Puspita Sari Ridho, Muhammad Syifa'ur Rila Rahma Mulyani Rini Septiani Yunas 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 Syaifullah Syaifullah Taufik Hidayatulloh Taufiq Ihsan Tofrizal Tofrizal, Alimuddin Wilson Novarino Winda Rahayu Yasir Muharram Fauzi Yelvi Monasari Yulinar Yulinar Yuzarion, Yuzarion Zaini Zaini