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All Journal Jurnal Akuatiklestari Samakia: Jurnal Ilmu Perikanan Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan JURNAL PERIKANAN TROPIS Asian Journal of Aquatic Sciences Jurnal Riset Rumpun Ilmu Hewani (JURRIH) Journal of Fish Health Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan Zoologi: Jurnal Ilmu Peternakan, Ilmu Perikanan, Ilmu Kedokteran Hewan Manfish: Jurnal Ilmiah Perikanan dan Peternakan Jurnal Ilmu Pertanian dan Perikanan (PENARIK) Jurnal Perikanan dan Kelautan (PERAUT)
Zebua, Ratna Dewi
Universitas Nias
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Health Professions Immunology & microbiology Social Sciences Veterinary Other

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Optimization of Local Feed Ingredient Composition to Achieve 30% Protein Levels in Cultivated Fish Feed Production Zebua, Ratna Dewi; Laoli, Destriman; Telaumbanua, Betzy Victor; Dawolo, Januari; Zebua, Okniel
Journal of Fish Health Vol. 5 No. 1 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i1.6312

Abstract

Aquaculture plays a vital role in meeting the global demand for animal protein, yet the dependency on expensive imported feed ingredients remains a significant challenge. Optimizing the use of local feed ingredients is a strategic approach to enhance sustainability and cost-efficiency in fish farming. This research aims to optimize the composition of local feed ingredients to achieve 30% protein content in farmed fish feed. The formulation involves rice bran, corn bran, fish meal, and tofu dregs, selected based on local availability and protein content. The methodology includes analysis of the protein content of raw materials, formulation testing, and physical evaluation of feed. The results show that the pellets produced have nutritional quality that meets the target, good physical stability, and cost efficiency of up to 40% compared to commercial feed. This research makes a significant contribution in supporting the sustainability of the fish farming industry and reducing dependence on imported raw materials.
Implementasi Teknologi Genetika Untuk Konservasi Spesies Laut Terancam: Tinjauan Literatur Tentang Metode dan Keberhasilan Betzy Victor Telaumbanua; Destriman Laoli; Ratna Dewi Zebua; Okniel Zebua; Januari Dawolo; Asokhiwa Zega
Manfish: Jurnal Ilmiah Perikanan dan Peternakan Vol. 2 No. 2 (2024): September: Manfish: Jurnal Ilmiah Perikanan dan Peternakan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/manfish.v2i2.46

Abstract

The pace of global environmental change and the intensification of human activities have put significant pressure on marine ecosystems, threatening the sustainability of many species that are important both for ecosystems and the economies of coastal communities. In this context, this study aims to evaluate the application of genetic technologies in the conservation of endangered marine species, focusing on environmental DNA (eDNA) monitoring, CRISPR genetic engineering techniques and population genetic analysis. The method used was a literature review that examined current academic sources related to genetic technologies and their implementation in conservation. Findings show that eDNA is a highly effective tool in species and habitat monitoring, and has been successful in specific cases such as Napoleon fish and green turtles in Raja Ampat. In contrast, CRISPR techniques offer the potential to improve the genetic resilience of species, despite significant regulatory and ethical challenges. The implications of this study emphasize the need for strong policy support and international collaboration to address these challenges and optimize the use of genetic technologies in more effective conservation strategies in the future.
Krisis Biodiversitas Perairan: Investigasi Solusi Berbasis Komunitas untuk Pemulihan Ekosistem Aquatik Okniel Zebua; Asokhiwa Zega; Ratna Dewi Zebua; Destriman Laoli; Januari Dawolo; Betzy Victor Telaumbanua
Manfish: Jurnal Ilmiah Perikanan dan Peternakan Vol. 2 No. 2 (2024): September: Manfish: Jurnal Ilmiah Perikanan dan Peternakan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/manfish.v2i2.47

Abstract

Crisis aquatic biodiversity is a critical environmental issue, triggered by human activities such as overfishing, pollution, and climate change, which have serious impacts on the stability of ecosystems and the climate change, which has serious impacts on the stability of ecosystems and the livelihoods of coastal communities. livelihoods of coastal communities. This research aims to examine community-based solutions in restoring degraded aquatic ecosystems, with a focus on the integration of sustainable aquaculture technologies and aquaponic systems. The methodology used was a comprehensive literature analysis of scientific articles, journals and relevant publications. The research findings show that sustainable fisheries management, habitat restoration, environmental education and awareness, implementation of environmentally education and environmental awareness, the application of environmentally friendly technologies, and the development of supportive policies are the main strategies for sustainable fisheries management. development of supportive policies are key strategies in improve conservation effectiveness. The implications of this research show that a community-based approach is not only effective for the conservation of aquatic biodiversity, but also provides practical guidance for policymakers and non-governmental organizations in designing and implementing community-based policy makers and non-governmental organizations in designing and implementing more holistic and effective ecosystem restoration programs that are more holistic and sustainable.
Feasibility Analysis Of The Malaga Beach Tourism Object In Siwalu Banua Ii Village Gunungsitoli Idanoi Distrct Gunungsitoli City North Sumatra Gea, Rosmawati; Gulo, Martin; Dawolo, Januari; Telaumbanua, Betzy Victor; Laoli, Destriman; Zebua, Ratna Dewi
Jurnal Ilmu Pertanian dan Perikanan Vol. 1 No. 1 (2024): PENARIK - Agustus
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/penarik.v1i1.40

Abstract

This research was conducted at Malaga Beach, Siwalu Banua II Village, Gunungsitoli Idanoi District, Gunungsitoli City, North Sumatra Province, with the aim of determining the feasibility of beach tourism objects from the limiting factors of the Tourism Suitability Index Value (IKW). This research was carried out for 1 month, namely from the beginning of March to the beginning of April 2021. The method used in this research was the purposive sampling method. The analysis parameters used are depth, beach type, beach width, bottom water material, current speed, beach slope, water brightness and beach land cover. Based on the results of observations, it shows that the Malaga Beach tourist attraction has good potential because it has a wide sand beach and has not big waves. The research results show that the Tourism Suitability Index (IKW) value is 58.16% and is classified as S3 (Conditionally Suitable) level of suitability. This value provides information that the tourist attraction is in the appropriate category conditionally for the feasibility of its development. The condition for the development in question is the appropriate use of potential, namely the potential width or breadth of the beach as well as the presence of shady pine and palm trees by creating comfortable shelters such as tourist tents, gazebos, children's toys. Thus, Malaga Beach, Siwalu Banua II Village, Gunungsitoli Idanoi District, Gunungsitoli City, North Sumatra has good potential to be developed into a recreational tourism and children's play location, but is not suitable for swimming tourism. 
POTENTIAL FOR DEVELOPING PHYTOPHARMACY BASED ON MARINE RESOURCES: REVIEW Zebua, Ratna Dewi; Waruwu, Eliyunus; Telaumbanua, Betzy Victor; Laoli, Destriman
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Indonesia is the world's largest archipelagic country, providing abundant biodiversity potential. The rapid development of chemistry, phytochemistry, and pharmacology has increased the research and application of various plants in the health sector. Phytopharmaca is a standardized herbal medicine that has proven its efficacy through clinical trials. Various types of marine biota that are easy to find have been proven to contain bioactive compounds that can potentially develop phytopharmaceuticals based on biological resources. The development of phytopharmaceuticals made from marine plant raw materials has yet to be widely developed. Limiting factors often found are references to pharmaceutical standardization and the required research funding. However, this does not rule out the possibility of realizing phytopharmaceutical products from marine plants that meet standards and clinical trials. Therefore, the aim of the explanation regarding research, types, and potential of marine biological resources in phytopharmaceuticals is to provide information and learning media.
Produksi Perikanan Tangkap di Kota Gunungsitoli Provinsi Sumatera Utara Telaumbanua, Betzy Victor; Zebua, Ratna Dewi; Laoli, Destriman; Zebua, Okniel; Dawolo, Januari
Akuatiklestari Vol 8 No 1 (2024): Jurnal Akuatiklestari
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/akuatiklestari.v8i1.7178

Abstract

Penelitian ini bertujuan untuk menyajikan data empiris mengenai produksi perikanan laut di Kota Gunungsitoli sepanjang periode 2019-2023. Penelitian ini diharapkan dapat memberikan gambaran yang jelas tentang tren produksi perikanan di Kota Gunungsitoli selama lima tahun terakhir. Penelitian dilaksanakan pada bulan April hingga Juli 2024 di Fakultas Sains dan Teknologi Universitas Nias. Penelitian ini menggunakan data sekunder yang diakses secara online dari situs web Badan Pusat Statistik Kota Gunungsitoli. Metode deskriptif digunakan dalam penelitian ini yang didasarkan pada kajian literatur dan analisis data sekunder. Data yang dianalisis mencakup volume produksi perikanan tangkap serta faktor-faktor yang mempengaruhinya. Proses pengumpulan dan analisis data dilakukan dengan menggunakan software Microsoft Excel, dan didukung oleh kajian literatur dari artikel ilmiah terkait. Berdasarkan hasil penelitian menunjukkan adanya variasi dalam volume produksi perikanan tangkap di Kota Gunungsitoli selama periode penelitian. Faktor-faktor seperti kondisi ekologis perairan, teknologi penangkapan ikan, dan aspek sosial-ekonomi nelayan berperan penting dalam mempengaruhi hasil tangkapan. Puncak produksi sebesar 7.068 ton pada tahun 2023. Kecamatan Gunungsitoli sebagai kontributor produksi terbesar. Terdapat empat rekomendasi kebijakan dalam meningkatkan pengelolaan sumber daya perikanan dan kesejahteraan masyarakat nelayan di Kota Gunungsitoli, yaitu pengembangan infrastruktur perikanan, penelitian dan pengembangan, diversifikasi lokasi penangkapan ikan, serta pelatihan dan edukasi.
Kultur Pakan Alami Cacing Sutra (Tubifex Sp.) Dan Pemberian Pakan Larva Ikan Lele (Clarias Sp.) Di Desa Fadoro Dusun Bawosalo’o, Kec. Mandrehe, Kab. Nias Barat Gea, Angel Sri Ayu; Estin Krisdila Zebua; Agnes Juwita Dawolo; Heppi Kristiani Waruwu; Irfan Waruwu; Martin Gulo; Ratna Dewi Zebua
Jurnal Perikanan dan Kelautan Vol. 2 No. 1 (2025): PERAUT - Juni
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/peraut.v2i1.621

Abstract

This study explores the culture of tubifex worms (Tubifex sp.) as natural feed to enhance the growth of catfish larvae (Clarias sp.). Tubifex worms are known for their high nutritional content, with protein levels reaching 55-66%, crucial for larval growth. The culture activity was conducted in Bawosalo’o, Nias Barat, from May 2 to May 31, 2025. Observations showed an increase in larval length from 0.72 cm on the first day to 1.1 cm by the seventh day, with a survival rate of 60%. Water quality, including temperature and pH, was well-maintained, supporting larval survival. Additionally, using tubifex worms as natural feed not only improved growth but also contributed to sustainable and environmentally friendly aquaculture practices. This research concludes that tubifex culture is an effective method for catfish larvae cultivation and recommends enhancing knowledge of breeding techniques and water quality management.
Analisis Pertumbuhan Ikan Nila (Oreochromis niloticus) pada Sistem Budidaya Kolam Beton di Dusun IV Desa Fadoro Lasara Kota Gunungsitoli Ratna Dewi Zebua; Betzy Victor Telaumbanua; Destriman Laoli; Nistiarni Zebua; Okniel Zebua
JURNAL RISET RUMPUN ILMU HEWANI Vol. 4 No. 2 (2025): Oktober : JURRIH: JURNAL RISET RUMPUN ILMU HEWANI
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrih.v4i2.6568

Abstract

This study aims to analyze the growth of tilapia (Oreochromis niloticus) cultivated in a concrete pond system in Dusun IV, Fadoro Lasara Village, Gunungsitoli City. The concrete pond system was chosen for its advantages in land efficiency, ease of management, and ability to maintain stable water quality. The research method employed a quantitative experimental approach over 60 days, with 200 Nile tilapia as the study subjects. The parameters observed included absolute weight and length gain, specific growth rate (SGR), feed conversion ratio (FCR), and survival rate (SR). The results showed that the average weight of the fish increased from 5.12 grams to 98.46 grams, with a length increase of 12.5 cm. The SGR was recorded at 4.29% per day, FCR at 1.38, and SR at 96.5%. These results indicate that the concrete pond system can support optimal tilapia growth. This study recommends the application of concrete ponds as an efficient aquaculture alternative, particularly in areas with limited land and resources. This system has proven to be adaptive to local conditions and contributes to increased productivity and income for aquaculture farmers.
Pengaruh Pakan Fermentasi Terhadap Pertumbuhan Dan Kelangsungan Hidup Ikan Lele (Clarias sp.) Gea, Rosmawati; Telaumbanua, Dara Dwista; Mendrofa, Osniwati; Gulo, Selvian Suriani; Telaumbanua, Betzy Victor; Dawolo, Januari; Laoli, Destriman; Zebua, Ratna Dewi
Jurnal Perikanan dan Kelautan Vol. 1 No. 1 (2024): PERAUT - Desember
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/peraut.v1i1.183

Abstract

Feed is an important factor in cultivating catfish (Clarias sp.), which affects the survival and growth of fry. Catfish growth is greatly influenced by feed quality, including nutrition, digestibility and feed utilization. Fermented feed is one of the innovations developed to improve feed quality. Fermented feed has become an attractive alternative to improve feed quality and growth efficiency. This article aims to explore the effect of fermented feed on the survival and growth of catfish fry by reviewing various previous studies. The method used is a literature review by collecting research results from various published scientific articles. The research results show that the use of fermented feed in catfish cultivation can increase growth, digestibility and feed efficiency. Further research is needed to explore optimal dosage and composition.
Pengidentifikasian Kualitas Air Laut Terkait Dengan Pengelolaan Limbah Plastik Telaumbanua, Dara Dwista; Zebua, Ratna Dewi; Telaumbanua, Putra Hidayat
Jurnal Perikanan dan Kelautan Vol. 1 No. 1 (2024): PERAUT - Desember
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/peraut.v1i1.184

Abstract

The problem of plastic waste in the ocean is a global problem that endangers the quality of sea water and the marine ecosystem as a whole. This article discusses the relationship between how to manage plastic waste and how it affects seawater quality, such as pH, temperature, salinity, dissolved oxygen (DO), and biological oxygen demand (BOD5). Research from the literature shows that plastic waste, especially microplastics and macroplastics, can affect the chemical and physical quality of sea water. For example, a decrease in pH levels due to accumulated organic acids, local heating due to sunlight absorbed by plastic, and changes in salinity due to interaction with fresh water. In addition, the accumulation of plastic causes a reduction in dissolved oxygen (DO) and an increase in BOD5 levels, which is detrimental to marine ecosystems. Decreased water quality can endanger marine species because these species are very dependent on the chemical balance of the water. Despite much research on the impact of plastic waste on water quality, there remains a gap in understanding the long-term impacts and the need for more comprehensive plastic waste management. Further research is needed to resolve these issues and create more effective management strategies.
Co-Authors Agnes Juwita Dawolo Angel Sri Ayu Gea Asokhiwa Zega Betzy Victor Telaumbanua Dara Dwista Telaumbanua Destriman Laoli ELIYUNUS WARUWU Estin Krisdila Zebua Fakta Perjuangan Lombu Gea, Angel Sri Ayu Gea, Rosmawati Gulo, Beriman Gulo, Martin Gulo, Selvian Suriani Halawa, Alfriend John Saotama Halawa, Vince Kurniawan Henni Syawal Heppi Kristiani Waruwu Iesje Lukistyowati Irfan Waruwu Januari Dawolo Lase, Rosevelt Cerdas Martin Gulo Mendrofa, Julilis Suganda Mendrofa, Osniwati Nelvia Mai Susanti Nistiarni Zebua Okniel Zebua Okniel Zebua, Okniel Zebua Putra Hidayat Telaumbanua Rahmat Tillah Ridho Victory Nazara Rindarianti Zai Rosevelt Cerdas Lase Rosmawati Gea Sanora Laia, Dian Agung Telaumabnau, Dara Dwista Telaumbanua, Afred Nobel Telaumbanua, Dara Dwista Zai, Desniwati Zebua, Arismanto Zebua, Nistiarni Zebua, Okniel