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IDENTIFIKASI BAKTERI DAN UJI AKTIVITAS ANTIBAKTERI EKSTRAK BAKTERI ENDOFIT YANG DIISOLASI DARI ALGA MERAH (Gracilaria sp.) Fittrie Meyllianawaty Pratiwy; Fajar Nurul Arifah
Bioma Vol. 18 No. 2 (2022): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma18(2).3

Abstract

Glacilaria sp. is one type of red algae that is widely found in Indonesia. Red algae has anti-microbial, anti-bacterial, anti-viral, anti-fungal, and other benefits. Endophytic microbes associated with seaweeds such as bacteria and fungus are thought to be able to produce the same bioactive compounds as their host, seaweeds. Several studies have also shown that the antibacterial activity of endophytic microbes can inhibit pathogenic bacteria. This study was conducted to identify endophytic bacteria present in Glacilaria sp. in inhibiting the growth of pathogenic bacteria (Vibrio sp. and S. aureus). Endophytic bacteria found in Gracilaria sp. isolated and tested for antibacterial activity using Staphylococcus aureus and Vibrio sp. bacteria. with disc disc method. the results showed that endophytic bacteria of the red algae Gracilaria sp. has antibacterial activity against bacteria S. aureus and Vibrio sp. It has inhibitory zones of 8 mm and 7.6 mm, respectively
Study on water quality based on physicochemical parameters and distribution of waste in the waters of Kelapa Dua Island Fittrie Meyllianawaty Pratiwy; Titin Herawati; Zahidah Hasan; Yuli Andriani; Thallita Nasywa Faddilah; Tiara Nurul Nabila
Depik Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.38544

Abstract

Kepulauan seribu archipelago is home to Kelapa Dua Island, a potential marine tourism destination and habitat for diverse marine life. The survival of marine biota hinges on suitable physical and chemical water parameters, encompassing temperature, pH, salinity, and dissolved oxygen (DO). This study aims to evaluate water quality and litter distribution on Kelapa Dua Island within Kepualauan Seribu National Park. Results reveal that the water quality largely aligns with established standards; however, specific points surpass limits, notably lower salinity at stasion 3 (26%o), and higher pH at station 2 (9.35). Despite meeting quality standards, the island's status as a populated area and tourist destination raises concerns about potential alterations to water quality. Furthermore, observations on litter distribution indicate a status categorized as B (0-4/m) and C (4-10/m), highlighting a relatively low level of litter presence. The interaction of human activities, both as inhabitants and visitors, may contribute to fluctuations in water quality. Understanding these dynamics is crucial for sustainable management, ensuring the preservation of Pulau Kelapa's ecological integrity as a cherished marine environment and tourist attraction. This study provides insights into the delicate balance between human interactions and environmental preservation in the context of Pulau Kelapa, Kepualauan Seribu.Keywords:Water qualityLitter DistributionKelapa Dua IslandKepulauan Seribu
Analisis Penggunaan Berbagai Jenis Aerasi Pada Sistem Budidaya Ikan Berbasis Bioflok (Literature Review) Andriani, Yuli; Meyllianawaty Pratiwy, Fittrie; Adya Nugraha, Zidan Fachriza
Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan Vol 14 No 2 (2026): JURNAL RUAYA: Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan
Publisher : UNIVERSITAS MUHAMMADIYAH PONTIANAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29406/jr.v14i2.9036

Abstract

Permasalahan yang paling banyak ditemui dalam budidaya yang memiliki keterkaitan dengan akumulasi senyawa nitrogen (amonia dan nitrit) yang berasal dari sisa pakan dan hasil ekskresi metabolik organisme budidaya. Solusi terhadap permasalahan tersebut, teknologi bioflok dikembangkan sebagai pendekatan budidaya berkelanjutan berbasis pemanfaatan komunitas mikroorganisme untuk mendaur ulang nutrien secara in situ. Bioflok tidak hanya berperan sebagai sistem pengolahan limbah secara biologis, tetapi juga menghasilkan agregat mikroorganisme yang dapat dimanfaatkan sebagai sumber nutrisi tambahan bagi organisme budidaya. Keberhasilan sistem bioflok bergantung pada manajemen aerasi yang optimal. Aktivitas bakteri heterotrof dalam sistem bioflok membutuhkan konsumsi oksigen yang tinggi, sehingga aerasi berperan penting dalam menyediakan oksigen terlarut, menjaga flok tetap tersuspensi, serta mendukung proses biodegradasi bahan organik di dalam kolam. Penelitian ini bertujuan untuk mengevaluasi efektivitas berbagai macam system aerasi dalam sistem bioflok dalam menjaga kualitas air dan mendukung pertumbuhan ikan secara optimal. Metode yang digunakan adalah metode deskriptif-eksploratif. Metode yang digunakan dalam kajian ini mengacu pada penelusuran literatur dari berbagai penelitian terdahulu yang dipublikasikan di jurnal nasional maupun internasional. Berdasarkan perbandingan dari beberapa penelitian, dapat disimpulkan bahwa penggunaan sistem aerasi modern seperti microbubble dan nanobubble memiliki efisiensi tinggi dalam proses transfer oksigen serta pengelolaan kualitas air jika dibandingkan dengan sistem aerasi konvensional seperti blower atau batu aerasi, namun penggunaan sistem ini masih banyak diterapkan karena lebih mudah dioperasikan dan memiliki biaya yang relatif lebih rendah.  Kata kunci: Bioflok, Aerasi, Kualitas Air, Pertumbuhan Ikan
Effect Of Adding Moringa Leaf Extract (Moringa oliefera) And Kencur (Kaempferia galanga) in Feed On Improving The Growth Performance Of Catfish (Clarias Sp.) Riana Rahmawati; Fittrie Meyllianawaty Pratiwy; Asep Agus Handaka Suryana; Roffi Grandiosa Herman
Grouper Vol. 15 No. 2 (2024): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v15i2.245

Abstract

The purpose of this study is to determine the influence and determine the optimal dose of moringa leaf extract and kencur in feed on the growth performance of catfish seeds. This research was carried out at the Aquaculture Laboratory, Faculty of Fisheries and Marine Sciences Padjadjaran University from February to March 2024. Sampling in this study used an experimental method using a Complete Random Design (RAL), the growth data obtained was analyzed using the analysis of the F test variety fingerprint (ANOVA / Analysis of Varience) and for the water quality data was analyzed descriptively. The results of this study, namely the addition of 150 mg/kg of moringa leaf extract and 250 mg/kg of kencur extract to feed had an effect on improving the growth performance of catfish seeds which was more optimal than other treatments, as shown by an increase in the percentage of absolute length growth (4.2 cm), absolute weight (57.58 g), SGR (3.80%), FCR (1.44%), EPP (68.90%), and SR (100%). The water quality values during fish rearing are in the optimal range including temperature (27.5-28.3°C), pH (7.0-7.5), and DO (5.2-7.5 mg/L).
Effect of Adding Bioactive Compounds from Brown Algae (sargassum sp.) in Feed on The Growth Performance of Mahseer Seeds (Tor soro) M Gufron Sugih; Fittrie Meyllianawaty Pratiwy; Izza Mahdiana; Irfan Zidni
Grouper Vol. 15 No. 2 (2024): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v15i2.267

Abstract

This study aims to determine the influence and determination of the optimal dose of the addition of brown algae extract on the growth performance and immunity of god fish seeds. The research was conducted in March - May 2024, at the Aquaculture Lab Building 4, FPIK Unpad, and the production of brown algae extract was carried out at the Aquaculture Lab Building 2, FPIK Unpad. This study used a complete randomized design (RAL) experimental method with four treatments and four replicates. The treatments given were (A) 100% commercial feed (control), (B) commercial feed added with brown algae extract at a dose of 10gr/kg, (C) commercial feed added with brown algae extract at a dose of 15 g/kg, and (D) commercial feed added with brown algae extract at a dose of 20 g/kg. The maintenance of fish fry is carried out for 40 days, with feeding three times a day. The observed parameters included absolute length growth parameters (L), absolute weight (W), specific growth rate (SGR), feed conversion ratio (FCR), feed utilization efficiency (EPP), and survival rate (SR) which were analyzed using ANOVA (Analysis of Varience) with a confidence level of 95%, if there is a significant difference, followed by the Duncan test. Water quality data was analyzed descriptively. The results showed that the addition of brown algae extract for feed at a dose of 20gr/kg had a more optimal effect than other treatments because of the bioactive compounds it contained. The dose had an effect on the growth of absolute length (1.6 cm), absolute weight (126.3 g), SGR (2.39%), FCR (2.28), EPP (44%) and water quality values during the maintenance period were still in the optimal range for god fish seeds.
Peningkatan Pengetahuan dan Keterampilan Masyarakat dalam Pengelolaan Sampah Organik melalui Budidaya Maggot sebagai Bahan Pakan Ikan Alternatif di Desa Bojongsoang Pratiwy, Fittrie Meyllianawaty; Andriani, Yuli; Herman, Roffi Grandiosa
Farmers : Journal of Community Services Vol 7, No 2 (2026): Farmers: Journal of Community Services
Publisher : Unpad Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/fjcs.v7i2.72015

Abstract

AbstractCommunity-based organic waste management can be developed through Black Soldier Fly (BSF) maggot cultivation while producing biomass with potential use as an alternative fish feed ingredient. This program aimed to improve community knowledge and skills in organic waste management through seminars and hands-on practice in constructing maggot cultivation units. The activity was conducted in Bojongsoang Village, Bandung Regency, involving 20 seminar participants and 13 workshop participants. Evaluation employed a one-group pre-test–post-test design, skill observation, a Likert-scale questionnaire, and four-week installation monitoring. Knowledge scores increased from 10.20±3.61 to 19.15±2.87 and differed significantly based on the Wilcoxon signed-rank test (p<0.001). Workshop participants achieved a mean skill score of 73.08%, while the overall participant response reached 3.89 on a five-point scale.. These findings indicate that combining education with hands-on practice can strengthen community capacity for organic waste management and support maggot biomass production as an alternative fish feed ingredient. Keywords: alternative fish feed; Black Soldier Fly; community empowerment; maggot cultivation; organic wasteAbstrakPengelolaan sampah organik berbasis masyarakat dapat dikembangkan melalui budidaya maggot Black Soldier Fly (BSF) sekaligus menghasilkan biomassa yang berpotensi digunakan sebagai bahan pakan ikan alternatif. Kegiatan ini bertujuan meningkatkan pengetahuan dan keterampilan masyarakat dalam pengelolaan sampah organik melalui seminar dan praktik pembuatan instalasi maggot. Kegiatan dilaksanakan di Desa Bojongsoang, Kabupaten Bandung, dan melibatkan 20 peserta seminar serta 13 peserta workshop. Evaluasi dilakukan menggunakan desain satu kelompok pre-test–post-test, observasi keterampilan, kuesioner skala Likert, dan monitoring instalasi selama empat minggu. Skor pengetahuan meningkat dari 10,20±3,61 menjadi 19,15±2,87 dan berbeda signifikan berdasarkan uji Wilcoxon (p<0,001). Capaian keterampilan peserta workshop mencapai 73,08%, sedangkan respons peserta memperoleh rerata 3,89 dari skala lima. Kegiatan ini menunjukkan bahwa kombinasi edukasi dan praktik langsung berpotensi meningkatkan kapasitas masyarakat dalam mengelola sampah organik dan menghasilkan biomassa maggot sebagai bahan pakan ikan alternatif.Kata kunci: budidaya maggot; pakan ikan; pemberdayaan masyarakat; sampah organik; Black Soldier Fly
Strengthening Food Security through Nile Tilapia (Oreochromis niloticus) Grow-out Aquaculture in Kertayasa Village, Cijulang District, Pangandaran Regency Grandiosa, Roffi; Zidni, Irfan; Pratiwy, Fittrie Meyllianawaty; Utama, Mochhamad Ikhsan Cahaya
Farmers : Journal of Community Services Vol 7, No 2 (2026): Farmers: Journal of Community Services
Publisher : Unpad Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/fjcs.v7i2.67903

Abstract

This community service activity was carried out in Kertayasa Village, Cijulang District, Pangandaran Regency, as a strategic step in following up on the formulation of the community service program of Universitas Padjadjaran in early 2025. The main problem raised was the economic stagnation in the fisheries sector due to the slow growth rate of gourami fish and the high risk of mortality due to disease, although the enthusiasm for cultivation in the community remains high. As an adaptive solution, this activity encourages commodity diversification through the development of tilapia (Oreochromis niloticus) which has fast-growing characteristics and better environmental resilience. The implementation method was carried out through a participatory qualitative approach, including Focus Group Discussions (FGDs) with BUMDes administrators and the village government, as well as the application of SWOT analysis to formulate a roadmap for sustainable business development. The ultimate goal of this initiative is to increase the managerial capacity of fisheries groups and strengthen the village's institutional commitment in building the "Nila Kertayasa" brand as a superior product integrated with the economic ecosystem of the Green Canyon tourist village.
Evaluasi Efektivitas Program Penyuluhan dan Pelatihan Teknologi Bioflok terhadap Pengetahuan, Persepsi, dan Implementasi Masyarakat di Desa Bojongsoang Pratiwy, Fittrie Meyllianawaty; Iskandar, Iskandar; Andriani, Yuli; Sugandhi, Rioaldhi
Farmers : Journal of Community Services Vol 7, No 2 (2026): Farmers: Journal of Community Services
Publisher : Unpad Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/fjcs.v7i2.71904

Abstract

Biofloc technology supports efficient feed utilization, water quality management, and sustainable aquaculture. However, its community-level application requires adequate knowledge and technical skills, particularly in aeration, water quality, biofloc formation, and feeding management. Therefore, community capacity building through extension and practical training is important to facilitate its appropriate application. This community service program aimed to evaluate changes in participants’ knowledge and to assess their perceptions and initial implementation of biofloc technology in Bojongsoang Village, Bandung Regency, Indonesia. The program involved 40 participants and consisted of extension sessions, demonstrations, and hands-on practice.Evaluation employed a one-group pre-test–post-test design using 25 knowledge questions, a 5-point Likert-scale perception questionnaire, and an observation checklist. The mean knowledge score increased significantly from 10.95 to 21.58 out of a maximum score of 25, representing a 97.1% increase from the pre-test score (t = −31.51; df = 39; p < 0.001). ). Participants showed positive perceptions of the program (mean = 4.19). Initial observations also indicated the application of basic biofloc practices, with the highest scores recorded for water pH management (3.05) and biofloc formation (3.00). The program significantly improved participants’ knowledge, while positive perceptions and initial application of basic biofloc practices were also observed. Continued technical assistance is required to strengthen the consistent application of the technology.
Pengaruh Penambahan Probiotik Pada Pakan Terhadap Kelangsungan Hidup Dan Pertumbuhan Ikan Nila (Oreochromis niloticus) dalam Sistem Akuaponik Djordan Bembie Fauziantaka; Fittrie Meyllianawaty Pratiwy; Asep Agus Handaka; Irfan Zidni
Vol 15 No 3 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i3.1391

Abstract

Tilapia (Oreochromis niloticus) is a freshwater fish with economic commodity value and an important commodity in the freshwater fish business in Indonesia. Problems often encountered in efforts to increase tilapia cultivation production are the reduction of empty land for cultivation activities and complex water sources in some areas. Land availability and water source supply are two main factors determining fisheries cultivation's success. Aquaponics is an alternative cultivation method that can save land and water use and optimize cultivation waste into plant biomass as a by-product with a selling value. The method used in this research is the Completely Randomized Design (CRD) experimental method, which consists of four treatments and three replications. The treatments used consist of (A) without mixing probiotics (negative control), (B) adding probiotics 5 ml.kg-1 feed, (C) adding probiotics 7.5 ml.kg-1 feed, and (D) adding probiotics 10 ml.kg-1 feed. The test tilapia were cultured in an aquaponic system with lettuce plants for 40 days with a density of 20 fish/80L. Feeding was carried out using the feeding rate (FR) method of 5% of biomass. The results obtained during the study showed that treatment C with a dose of 7.5 ml.kg-1 of feed produced positive conditions that were significantly different in terms of a specific growth rate of 2.30 ± 0.1%, 100% survival, and feed efficiency of 56.5 ± 1.6%, absolute length was 3.08 ± 0.07 cm and absolute weight was 13.14 ± 1.53 gram