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All Journal JURNAL ILMIAH PLATAX The Journal of Experimental Life Sciences (JELS) Journal of Applied Geospatial Information Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Riset Akuakultur Journal on Education TRITON : Jurnal Manajemen Sumberdaya Perairan JURNAL LENTERA BISNIS Mattawang: Jurnal Pengabdian Masyarakat Nusantara Hasana Journal Panrannuangku Jurnal Pengabdian Masyarakat JOMPA ABDI: Jurnal Pengabdian Masyarakat Journal of Community Empowerment and Innovation Abdi Jurnal Publikasi Media Bina Ilmiah Journal of Research and Publication Innovation Jurnal Wilayah, Kota dan Lingkungan Berkelanjutan Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Fisheries & Marine Jurnal Perikanan Jurnal Penelitian Teknik dan Pengelolaan Sumberdaya Perairan
manik, ria retno
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SOSIALISASI PEMBENIHAN IKAN NILA (Oreochromis Niloticus) DI DESA TIGA RAS KECAMATAN DOLOK PARDAMEAN KABUPATEN SIMALUNGUN Mila Sianipar; Erwin Sapeai; Goldvri Hutabarat; Saut Silitonga; Ria Retno
Abdi Jurnal Publikasi Vol. 3 No. 4 (2025): Maret
Publisher : Abdi Jurnal Publikasi

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Abstract

Tilapia (Oreochromis niloticus) is one of the introduced fish species that is commonly cultivated in Indonesia. Tilapia cultivation in Indonesia has experienced a lot of improvement with the emergence of several breeding strains of tilapia. According to the KKP (2018), tilapia production in 2016 was 1,114,156 tons, in 2017 and 2018 tilapia production increased again with amounts of 1,265,201 tons and 1,169,144 tons respectively. The activity of growing seeds in fish is the beginning of activities in cultivation, most importantly because it can influence subsequent activities, namely nursery and rearing of broodstock. Overall hatchery includes brood care, brood sorting, breeding and larval rearing. Fish hatchery is one part of fish farming activities by mating broodstock to get young that are ready to be marketed. This article is the result of community service activities to provide material about tilapia fish hatcheries through outreach, so that people can carry out their own tilapia fish hatcheries.
SOSIALISASI TEKNIK PEMBESARAN IKAN NILA (OREOCHROMIS NILOTICUS) MENGGUNAKAN KOLAM TERPAL WADAH BUDIDAYA DI DESA TIGARAS Submission AJP; Edward Zega; Tresi Rumapea; Nur Jannah; Ria Retno
Abdi Jurnal Publikasi Vol. 3 No. 4 (2025): Maret
Publisher : Abdi Jurnal Publikasi

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Abstract

Tarpaulin ponds are the right fish farming container for tilapia enlargement because of its various advantages such as ease of moving, friendliness to soil construction, suitability to the characteristics of tilapia, ease of cleaning the pond and harvesting fish. This community service activity aims to provide education to business groups through cognitive aspects about tilapia enlargement cultivation in tarpaulin ponds in the community in Labuhan Hamlet, Tigaras Village. This community service includes field visits (surveys), counseling, training, evaluation, and monitoring after counseling and training. So far, the target community group in Labuhan Hamlet has been able to design, build their own ponds, and be able to cultivate tilapia using tarpaulin ponds. Furthermore, the results of evaluation and monitoring show that the people of Labuhan Hamlet do not face significant obstacles in cultivating fish in tarpaulin ponds. Some of them even tried to design and build their own tarpaulin ponds independently. This is a strong indication of the openness and acceptance of the Labuhan Hamlet community towards the application of fish farming technology that is still relatively new to the Labuhan Hamlet community.
HUBUNGAN KARAKTERISTIK INTERNAL DAN EKSTERNAL TERHADAP TINGKAT KETERAMPILAN DAN PRODUKTIVITAS USAHA WANITA PENGOLAH IKAN ASIN PASCA COVID-19 Debora Exaudi Sirait; Ria Retno Dewi Sartika Manik
JURNAL LENTERA BISNIS Vol. 13 No. 3 (2024): JURNAL LENTERA BISNIS, SEPTEMBER 2024
Publisher : POLITEKNIK LP3I JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34127/jrlab.v13i3.1243

Abstract

The purpose of this study was to analyze the profile of coastal women's businesses in salted fish processing, to study coastal women's businesses in salted fish processing for increasing their family's income and economy and to study the relationship between external and internal factors that influence (support and inhibit) and empowerment efforts through coaching in salted fish processing in Nenas Siam Village, Medang Deras District, Batu Bara Regency. The method used was qualitative descriptive. The data collected in this study consisted of two types of primary data and secondary data obtained by: (1) using a questionnaire that had been tested for validity and reliability, (2) interviews using questionnaires were conducted by asking and answering questions directly to selected respondents to obtain primary data, (3) secondary data collection was carried out by reviewing literature related to and relevant to this study and (4) conducting observations, namely direct observations in the field. The collected data were tabulated and analyzed using non-parametric statistical tests (Spearman Rank Correlation).
Edukasi Masyarakat Desa Togu Domu Nauli Tentang Upaya Menjaga Kualitas Sumber Air Handoco S, Ewin; Naibaho, Winfrontstein; Manik, Ria Retno DS; Barat, Welmar Olfan Basten; Sinaga, Mardame P
Jompa Abdi: Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2025): Jompa Abdi: Jurnal Pengabdian Masyarakat
Publisher : Yayasan Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/jompaabdi.v4i2.1525

Abstract

Tujuan Kegiatan ini adalah untuk meningkatkan pengetahuan dan pemahaman masyarakat Desa Togu Domu Nauli tentang pentingnya menjaga kelestarian sumber air bagi keberlangsungan hidup. Kegiatan ini dilaksanakan dalam bentuk penyuluhan partisipatif secara ilmiah untuk meningkatkan pemahaman masyarakat mengenai pentingnya menjaga sumber air. Desa ini berada di kawasan hulu sungai-sungai kecil yang bermuara ke Danau Toba. Oleh karena itu, pelestarian lingkungan di desa ini berdampak langsung terhadap kualitas air dan keberlanjutan ekosistem Danau Toba. Upaya menjaga sumber mata air dan mencegah pencemaran sangat relevan dalam konteks konservasi kawasan Danau Toba. Sungai-sungai kecil yang berhulu dari desa ini secara langsung atau tidak langsung menyuplai air ke Danau Toba melalui sistem hidrologi alami. Danau Toba yang merupakan sumber air bagi masyarakat, pertanian, dan perikanan. Jika sumber air dari hulu seperti di Togu Domu Nauli tercemar oleh limbah rumah tangga, pestisida, atau limbah ternak, maka akan terjadi penurunan Kualitas air Danau Toba, Produktivitas perikanan berkurang, Terjadi eutrofikasi, dan Risiko gangguan kesehatan meningkat. Kegiatan edukasi kepada masyarakat Desa Togu Domu Nauli mengenai pentingnya menjaga kualitas sumber air telah memberikan pemahaman yang lebih baik tentang hubungan antara perilaku manusia dan keberlanjutan lingkungan. Warga diharapkan mampu mengidentifikasi potensi masalah pencemaran serta mengambil langkah nyata dalam melindungi mata air sebagai sumber kehidupan. Sebagai wilayah hulu yang berkontribusi terhadap ekosistem Danau Toba, Desa ini memiliki peran strategis dalam menjaga keseimbangan lingkungan regional. Oleh karena itu, kesadaran dan partisipasi aktif masyarakat dalam pelestarian sumber air bukan hanya penting bagi keberlangsungan hidup lokal, tetapi juga berkontribusi terhadap keberlanjutan lingkungan yang lebih luas.
KAJIAN KUALITAS AIR PERAIRAN SELAT MALAKA DESA KWALA INDAH DALAM UPAYA PENGENDALIAN PENCEMARAN AIR Ria Retno; Mila Sianipar
Journal of Research and Publication Innovation Vol 3 No 3 (2025): JULY
Publisher : Journal of Research and Publication Innovation

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Abstract

One of the worst areas of marine environmental pollution is the Strait of Malacca because this Strait is busy with ships, especially giant tankers. The ecology of the Strait of Malacca is currently threatened with very severe pollution. The purpose of this study was to identify the air quality conditions in Kwala Indah Village, Sei Suka District, Malacca Strait Waters. The method used in this study is the purposive sampling method using the calculation of water pollution index at 3 sampling locations. Determination of water quality status using the pollution index method according to the Decree of the Minister of Environment 115/2003. The parameters observed and measured are 12 parameters using the Indonesian National Standard (SNI) method for measuring water and waste quality, including physical properties (temperature, brightness, current speed, salinity) and chemical properties (pH, dissolved oxygen, Biological oxygen demand, Nitrate, Nitrite, Ammonia, Orthophosphate and Silica. The pollution index in the waters of the Malacca Strait in Kwala Indah Village is included in the lightly polluted category with an average temperature of 28.78-29 °C, pH 7.57-8.16, BOD 14.38-14.45 mg/l and DO 2.2-2.6 mg/l. The strategy for controlling pollution in the Malacca Strait can be carried out by reducing the pollution load, namely by involving the community in environmental management.
PEMBERDAYAAN MASYARAKAT DALAM PRODUKSI IKAN LELE MENGGUNAKAN MAGGOT DAN MANAJEMEN BUDIDAYA PADA KELOMPOK PERIKANAN DI DESA SUKARAJA Ewin Handoco; Gunaria Siagian; Ria Retno
Nusantara Hasana Journal Vol. 5 No. 4 (2025): Nusantara Hasana Journal, September 2025
Publisher : Yayasan Nusantara Hasana Berdikari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59003/nhj.v5i4.1702

Abstract

The people living in the Sukaraja Village area are farmers, fish farmers and traders. The partner problem is that the fish farming community in Sukaraja Village still relies on factory-made feed, causing the price of the feed product to be very high, reaching 70% of the total production cost. The community partnership empowerment program supports the community to improve production and business management that has been carried out, so that the group community can increase income and capacity and be sustainable for their business, through education, training and mentoring as well as program evaluation. The community partnership empowerment activity for productive economic partners, namely the fish farming group, namely Setia Farm, is carried out in 5 stages in implementing the offered solutions concerning problems in the fields of production and management. This community partnership empowerment activity uses a method of implementation stages, namely socialization, training, technology application, mentoring and evaluation as well as program sustainability. The target output of the solutions offered in the community partnership empowerment program is an increase in partner knowledge and skills, an increase in the level of partner empowerment quantitatively, namely an increase in income of 30% and production by 30%, the national journal sinta 5, modules, posters, videos, electronic mass media and copyright. The results obtained after the activity were an average of 100% increase in knowledge and 91% in partner management skills, existing posters, published electronic mass media.
Pengabdian Terhadap Masyarakat: Optimalisasi Penulisan Karya Ilmiah Mahasiswa melalui Pemanfaatan Aplikasi Mendeley: Pengabdian Janwar Tambunan; Lois Oinike Tambunan; Ria Retno Dewi Sartika Manik
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.2773

Abstract

Scientific writing is one of the essential competencies that students must possess, yet it is often hindered by difficulties in managing references and proper citations. This community service aims to enhance students’ ability to write scientific papers systematically and efficiently through the utilization of Mendeley as a reference management tool. The activities were conducted in the form of workshops and hands-on practice using Mendeley, covering installation, literature management, and the creation of citations and bibliographies according to academic standards. The methods employed included a combination of demonstration, discussion, and direct practice with student participants at HKBP Nommensen University Pematangsiantar. The results of the community service indicated a significant improvement in students’ skills in managing references, facilitating citation writing, and accelerating the process of preparing scientific papers. Thus, the use of Mendeley can serve as an effective strategy to support students’ academic productivity and enhance the quality of scientific writing
Learning Mathematics with the Geogebra Software Application Sirait, Debora Exaudi; Silalahi, Mastiur Verawaty; Manik, Ria Retno; Situmorang, Masni Veronika; Siagian, Gunaria; Sirait, Erwin
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 2 (2023): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v8i2.11500

Abstract

Mathematics is a subject whose field of study is abstract and requires the ability to think logically so that to convey it, a medium is needed so that students become more understanding of the material presented and stimulate students to improve their ability to think logically. One of the learning media that is in accordance with current developments is the use of software. Using the GeoGebra Software provides several advantages, including geometric drawings which are usually produced more quickly and accurately than using a pencil, ruler or compass. The existence of animation facilities and manipulation movements (dragging) in the GeoGebra Software can provide a clearer visual experience for students in understanding geometric concepts. Can be used as an evaluation to ensure that the painting that has been made is correct. Make it easier for teachers and students to investigate or show the properties that apply to a geogebraic object. The method used in this activity is an interactive lecture that is chosen to deliver software geoebra which is carried out in three stages, namely the field assessment stage, the implementation stage, and the evaluation stage. By using this GeoGebra software, it can increase the knowledge and understanding of teachers in learning mathematics and can produce teaching materials based on GeoGebra.
EFEKTIVITAS PENGGUNAAN EKSTRAK HIPOFISA KATAK SAWAH (Fejervarya cancrivora) TERHADAP FEKUNDITAS DAN HATCHING RATE IKAN MAS (Cyprinus carpio) Rumondang, Anne; Fuah, Ricky Winrison; Harahap, Mutiara Alkayakni; Manik, Ria Retno Dewi Sartika
Jurnal Riset Akuakultur Vol 18, No 4 (2023): (Desember, 2023)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.18.4.2023.251-258

Abstract

Proses pemijahan ikan mas (Cyprinus carpio) dapat dilakukan secara alami atau tradisional. Akan tetapi fekunditas dan fertillisasi dari pemijahan tersebut masih cukup rendah. Untuk itu perlu dilakukan pemijahan secara buatan melalui aplikasi hormonal dengan menggunakan teknik hipofisasi untuk merangsang dan mempercepat ovulasi serta pemijahan induk ikan dan mampu meningkatkan fekunditas, hatching rate,dan kuantitas benih ikan. Kelenjar hipofisa katak sawah (Fejervarya cancrivora) memiliki beberapa kelenjar endokrin yang bertugas menghasilkan hormon untuk mengatur dan mengontrol tugas-tugas tubuh, merangsang, dan mengaktifkan jaringan reproduksi. Penelitian ini bertujuan untuk menguji dosis penggunaan kelenjar hipofisa katak sawah yang paling efektif untuk meningkatkan fekunditas dan hatching rate ikan mas. Metode yang digunakan yaitu metode eksperimen terdiri dari empat perlakuan dosis kelenjar hipofisa katak sawah, yaitu P1 (0 mL kg-1), P2 (0,3 mL kg-1), P3 (0,5 mL kg-1), dan P4 (0,7 mL kg-1) dengan tiga ulangan. Data yang diperoleh dianalisis secara statistik dengan menggunakan analysis of variance (ANOVA). Hasil penelitian menunjukkan bahwa dosis yang paling efektif untuk meningkatkan fekunditas danhatching rate ikan mas adalah 0,5 mL kg-1. Fekunditas tertinggi sebesar 85.516,51 ± 2.110,94 butir dengan hatching ratesebesar 76,87 ± 1,33%.Penggunaan dosis yang rendah mengakibatkan hormon tidak mencapai konsentrasi yang cukup untuk merangsang respons reproduksi yang diinginkan. Sebaliknya, dosis yang terlalu tinggi dapat menyebabkan terjadinya overstimulasi sistem reproduksi ikan, yang pada akhirnya dapat mengganggu keseimbangan hormonal akibat toksisitas.The spawning process of carp (Cyprinus carpio) can be done naturally or artificially. However, fecundity and fertilization from spawning are still quite low. For this reason, it is necessary to carry out artificial spawning through hormonal applications using pituitary techniques to stimulate and accelerate ovulation and spawning of parent fish and is able to increase fecundity, hatching rate and quantity of fish fry. The pituitary gland of crab-eating frog (Fejervarya cancrivora) has several endocrine glands whose job is to produce hormones to regulate and control body tasks, stimulate, and activate reproductive tissue. This study aimed to test the most effective dose of crab-eating frog's pituitary gland to increase the fecundity and hatching rate of carp. The method used was the experimental method consisting of four treatments of crab-eating frog’s pituitary gland doses, namely P1 (0 mL kg-1), P2 (0.3 mL kg-1), P3 (0.5 mL kg-1), and P4 (0.7 mL kg-1) with three replications. The data obtained were analyzed statistically using analysis of variance (ANOVA). The results showed that the most effective dose for increasing fecundity and hatching rate of carp was 0.5 mL kg-1. The highest fecundity was 85,516.51 ± 2,110.94 eggs with a hatching rate of 76.87 ± 1.33%. The use of low doses resulted in the hormone not reaching sufficient concentrations to stimulate the desired reproductive response. On the other hand, doses that are too high can cause overstimulation of the fish's reproductive system, which in turn can disrupt the hormonal balance due to toxicity. 
Kelayakan Ekowisata Pantai Salbe Nauli Beach Di Desa Togu Domu Nauli Kecamatan Dolok Pardamean Kabupaten Simalungun purba, ravic purba; Purba, Ravic; Manik, Ria Retno; Sinaga, Mardame
Jurnal Penelitian Teknik Dan Sumberdaya Perairan Vol. 1 No. 2 (2025): Jurnal Penelitian Teknik dan Sumber Daya Perairan (Desember)
Publisher : Fakultas Teknik dan Pengelolaan Sumberdaya Perairan Universitas HKBP Nommensen Pematangsiantar

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Abstract

Penelitian ini bertujuan untuk mengetahui tingkat kelayakan Pantai Salbe Nauli Beach di Desa Togu Domu Nauli, Kecamatan Dolok Pardamean, Kabupaten Simalungun sebagai destinasi ekowisata. Metode penelitian yang digunakan adalah deskriptif kuantitatif dengan pendekatan studi kasus lapangan. Data dikumpulkan melalui observasi, wawancara, dokumentasi, dan penyebaran kuesioner kepada wisatawan dan masyarakat sekitar. Analisis data dilakukan menggunakan metode statistik deskriptif berdasarkan empat aspek utama pariwisata, yaitu daya tarik, aksesibilitas, amenitas, dan dukungan masyarakat. Hasil penelitian menunjukkan bahwa Pantai Salbe memiliki nilai rata-rata kelayakan sebesar 3,768, yang termasuk dalam kategori “layak” untuk dikembangkan sebagai destinasi ekowisata. Hasil analisis SWOT menunjukkan bahwa kekuatan utama Pantai Salbe terletak pada daya tarik alam yang indah dan dukungan masyarakat lokal, sementara kelemahannya adalah keterbatasan fasilitas dan pengelolaan. Peluang pengembangan terbuka melalui dukungan pemerintah dan tren wisata berbasis alam, sedangkan ancaman yang dihadapi antara lain potensi degradasi lingkungan dan persaingan dengan destinasi lain di kawasan Danau Toba. Dengan demikian, pengembangan Pantai Salbe sebaiknya difokuskan pada peningkatan fasilitas, perbaikan aksesibilitas, serta penguatan partisipasi masyarakat dalam pengelolaan wisata secara berkelanjutan.
Co-Authors Andry Agasi Hasiholan Purba Anne Rumondang Arleston, Jogi Arning Wilujeng Ekawati Damema Simanjuntak Daniel Tony Edyt Siburian David Pasaribu Dwi Parsaulian Sitinjak Edward Zega Elifal Tensadon Siagian Elsy Hariany Saragih Erwin Sapeai Erwin Sirait, Erwin Ewil Wiranda Sitorus Ewin Handoco Fuah, Ricky Winrison Gabryella Damayanty Silaen Gokma Arinda Lumban Raja Goldvri Hutabarat Grace Purba Handoco S, Ewin Handoco, Ewin Hardoko Hardoko Herman Herman Jogi Arleston Leo Sandi Silaen Lidia Samosir Lilis Pramita Pangaribuan Lois Oinike Tambunan Mardame Pangihutan Mardame Pangihutan Sinaga Mardame Sinaga Masni Veronika Situmorang Mila Sianipar Mutiara Alkayakni Harahap Naibaho, Winfrontstein Nur Jannah Purba, Evan Gomgom Tua PURBA, LYDIA Purba, Ravic purba, ravic purba Putri Winda Sidabutar Rafindo Sanjaya Saragih Rafindo Saragih Rumondang, Anne Sahat Sitompul Saragi, Jandri Fan HT Saut Silitonga Siagian, Gunaria Sihombing, Gokma David Lefi Silaen, Leo Sandi Silalahi, Mastiur Verawaty Simanjuntak, Hendra Sinaga, Mardame P Sirait, Debora Situmorang, Masni Veronika Submission AJP Tambunan, Janwar Tambunan, Lois Theresya Tindaon Tresi Rumapea Welmar Olfan Barat, Welmar Olfan Wendy Pakpahan Widya Dameria Sinaga Yoel Octobe Purba