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Juvenil: Jurnal Ilmiah Kelautan dan Perikanan
Published by Universitas Trunojoyo Madura
ISSN : -     EISSN : 27237583     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science
Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal aim to become a medium of dissemination of high quality research and scientific note in the fiend of marine and fisheries. This journal can be accessed and downloaded freely for everyone. The article published in this journal have been pass the rigorious peer review by the expert reviewer. This journal accept every article that contain the following, but not limited to, scope: Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal is expected to function as a medium for the dissemination of quality scientific research results as well as scientific rebuttal (notes) in the marine and fisheries sector which can be accessed online and free of charge by the Indonesian community and the international community. The articles (articles) published in this journal are articles that have passed peer-review (partner bebestari). This journal accepts every article which contains, but is not limited to, the scope: 1. Ecology and biology of marine and fisheries 2. Marine and Aquaculture 3. Marine and Aquatic Conservation 4. Marine Water Pollution 5. Management of marine and aquatic resources 6. Marine and fishery processing technology
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 285 Documents
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Desain Scrapbook Tematik ‘Jejak Bahari’ Sebagai Media Kreatif Untuk Meningkatkan Pengalaman Wisatawan Di Smiling Coral Indonesia Darmawan, Rivaldi Thio; Ihsan, Yudi Nurul; Junirahma, Nur Sakinah; Nurhayati, Atikah; Dhahiyat, Ahmad Prawira
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.31919

Abstract

ABSTRAKPenelitian ini bertujuan merancang scrapbook tematik Jejak Bahari sebagai media kreatif yang menggabungkan dokumentasi perjalanan, narasi visual, dan edukasi wisata bahari di Smiling Coral Indonesia, Pulau Pramuka. Dengan pendekatan Research and Development (RD), tahapan perancangan meliputi pra-produksi, desain visual, produksi fisik, hingga uji persepsi wisatawan. Data dikumpulkan melalui observasi, dokumentasi, serta kuesioner daring kepada 45 responden. Hasil penelitian menunjukkan mayoritas responden memberikan penilaian positif terhadap aspek desain, isi, hingga fungsi scrapbook, dengan dominasi kategori setuju dan sangat setuju pada indikator yang diukur. Scrapbook fisik dinilai lebih interaktif, personal, dan mampu membangkitkan kembali kenangan wisata dibanding media konvensional seperti brosur maupun dokumentasi digital yang cenderung statis dan jarang diakses kembali. Secara praktis, scrapbook dapat dimanfaatkan sebagai media promosi pariwisata alternatif yang lebih personal sekaligus souvenir eksklusif. Rekomendasi penelitian lanjutan mencakup uji coba dengan responden yang lebih luas, pengembangan scrapbook digital, dan penerapannya pada destinasi wisata lain.Kata Kunci: Wisata Bahari, Scrapbook, Pulau Pramuka, Smiling Coral IndonesiaABSTRACTThis study aims to design a thematic scrapbook "Jejak Bahari" as a creative medium that combines travel documentation, visual narratives, and marine tourism education at Smiling Coral Indonesia, Pramuka Island. Using a Research and Development (RD) approach, the design stages included pre-production, visual design, physical production, and tourist perception testing. Data were collected through observation, documentation, and an online questionnaire from 45 respondents. The results showed that the majority of respondents gave positive assessments of the design, content, and function of the scrapbook, with a predominance of agree and strongly agree categories for the measured indicators. Physical scrapbooks were considered more interactive, personal, and able to evoke travel memories compared to conventional media such as brochures or digital documentation, which tend to be static and rarely accessed. Practically, scrapbooks can be used as an alternative, more personal tourism promotion medium as well as an exclusive souvenir. Recommendations for further research include trials with a wider range of respondents, the development of digital scrapbooks, and their application to other tourist destinations.Keywords: Marine Tourism, Scrapbook, Pramuka Island, Smiling Coral Indonesia
Efektifitas Frekuensi Pemberian Probiotik Lactobacillus sp Terhadap Pertumbuhan Vibrio Penyebab AHPND Pada Udang Vannamei (Litopenaeus vannamei) Rosyid, Mujtahid Ainur; Hayati, Nurul; Budiyanto, Didik
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.27319

Abstract

ABSTRAKBudidaya udang vannamei (Litopenaeus vannamei) di Indonesia saat ini sudah berkembang dengan pesat dan menjadi andalan utama ekspor hasil budidaya perikanan. Namun, dalam proses kegiatan budidaya masih ditemukan kendala yaitu kualitas perairan budidaya yang semakin tidak terkontrol sehingga mengakibatkan munculnya beberapa penyakit seperti acute hepatopancreatic necrosis disease (AHPND) yang disebabkan oleh bakteri pathogen. Tujuan dari penelitian ini adalah untuk mengetahui frekuensi pemberian probiotik yang optimal terhadap penanganan penyakit acute hepatopancreatic necrosis disease (AHPND) pada udang vannamei.  Penelitian ini menggunakan metode eksperimental dengan menggunakan Rancangan Acak Lengkap (RAL) terdiri atas 4 perlakuan dan 6 kali ulangan. Perlakuan dalam penelitian ini berupa pemberian probiotik dengan frekuensi yang berbeda. Perlakuan A: Frekuensi pemberian probiotik sebanyak 2 hari sekali, Perlakuan B: Frekuensi pemberian probiotik sebanyak 3 hari sekali, Perlakuan C: Frekuensi pemberian probiotik sebanyak 4 hari sekali, Perlakuan D: Frekuensi pemberian probiotik sebanyak 5 hari sekali. Hasil penelitian menunjukkan bahwa frekuensi pemberian probiotik Lactobacillus sp berpengaruh nyata terhadap pertumbuhan vibrio. Perlakuan A dengan frekuensi pemberian probiotik 2 hari sekali menunjukkan jumlah total vibrio terendah dibandingkan Perlakuan B, C, dan D, yaitu 1360-2000 Cfu/ml, sedangkan perlakuan B didapatkan 1500-2200 Cfu/ml, perlakuan C didapatkan 1770-2450 Cfu/ml, dan Perlakuan D didapatkan 1840-3250 Cfu/ml. Kata Kunci: Udang Vannamei, Lactobacillus sp, AHPND, Bakteri VibrioABSTRACTVannamei shrimp cultivation (Litopenaeus vannamei) in Indonesia is currently developing rapidly and has become the main mainstay of exports of fishery cultivation products. However, in the process of cultivation activities, obstacles are still found, namely the quality of aquaculture waters that are increasingly uncontrolled, resulting in the emergence of several diseases such as acute hepatopancreatic necrosis disease (AHPND) caused by pathogenic bacteria. The purpose of this study is to determine the optimal frequency of probiotic administration for the treatment of acute hepatopancreatic necrosis disease (AHPND) in vannamei shrimp. This study uses an experimental method using a Complete Random Design (RAL) consisting of 4 treatments and 6 replicates. The treatment in this study was in the form of giving probiotics with different frequencies. Treatment A: Frequency of probiotic administration every 2 days, Treatment B: Frequency of probiotic administration every 3 days, Treatment C: Frequency of probiotic administration every 4 days, Treatment D: Frequency of probiotic administration every 5 days. The results showed that the administration of probiotics with different frequencies had a real effect on vibrio growth in the treatment of Acute Hepatopancreatic Necrosis Disease (AHPND) in vannamei shrimp (Litopenaeus vannamei) in DOC 5 – DOC 30. Keywords: Vannamei Shrimp, Lactobacillus sp, AHPND, Vibrio Bacteria
Pemanfaatan Kolam Beton Untuk Budidaya Dan Konservasi Lobster Batu (Panulirus penicillatus) Aziz, Abdul; Aisyah, Sitti; Rahardjo, Seto Sugianto Prabowo; Nuswantoro, Soko; Permanasari, Setya Widi Ayuning
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.29042

Abstract

ABSTRAKLobster batu (Panulirus penicillatus) merupakan salah satu komoditas perikanan bernilai ekonomi tinggi yang memiliki potensi besar untuk dibudidayakan secara intensif dan berkelanjutan. Penelitian ini bertujuan untuk mengevaluasi efektivitas sistem kolam beton berfilter dan program konservasi dalam mendukung pertumbuhan serta pelestarian lobster batu. Studi dilakukan di Kelompok Pembudidaya Ikan “Pesona Bahari” Grand Watu Dodol, Banyuwangi, selama 40 hari, dengan fokus pada analisis tingkat kelangsungan hidup (Survival Rate, SR), pertumbuhan berat dan panjang lobster, efisiensi pakan, serta parameter kualitas air. Hasil penelitian menunjukkan tingkat kelangsungan hidup lobster sebesar 90% dan laju pertumbuhan spesifik (Specific Growth Rate, SGR) mencapai 1,13% per hari. Pemberian pakan berupa kerang hijau dan ikan rucah secara bergantian menghasilkan efisiensi pakan yang tinggi dengan nilai Feed Conversion Ratio (FCR) yang rendah. Parameter kualitas air, seperti suhu, pH, oksigen terlarut, dan salinitas, berada dalam rentang optimal untuk budidaya lobster. Program konservasi yang melibatkan pelepasliaran lobster secara selektif dan edukasi masyarakat memberikan dampak positif terhadap pelestarian sumber daya laut. Namun, diperlukan pemantauan pasca-pelepasliaran dan studi lanjutan mengenai adaptasi lobster di alam untuk meningkatkan efektivitas konservasi. Penelitian ini membuktikan bahwa penerapan teknologi budidaya yang inovatif dan berkelanjutan dapat meningkatkan produktivitas lobster batu sekaligus mendukung pelestarian ekosistem laut. Model budidaya ini dapat direplikasi untuk mengoptimalkan potensi perikanan di wilayah pesisir lainnya.Kata Kunci: Panulirus penicillatus, budidaya lobster, efisiensi pakan, kualitas air, konservasi berkelanjutanABSTRACTThe spiny lobster (Panulirus penicillatus) is a high-value fisheries commodity with significant potential for intensive and sustainable aquaculture. This study aims to evaluate the effectiveness of a filtered concrete pond system and conservation programs in supporting the growth and preservation of spiny lobsters. The research was conducted at Fish Farmers Group “Pesona Bahari” Grand Watu Dodol, Banyuwangi, over 40 days, focusing on survival rate (SR), weight and length growth, feed efficiency, and water quality parameters. The results showed a survival rate of 90% and a specific growth rate (SGR) of 1.13% per day. Feeding spiny lobsters with green mussels and trash fish alternately resulted in high feed efficiency, as indicated by a low Feed Conversion Ratio (FCR). Water quality parameters, including temperature, pH, dissolved oxygen, and salinity, were within optimal ranges for lobster aquaculture. The conservation program, involving selective lobster releases and community education, positively impacted marine resource sustainability. However, post-release monitoring and further studies on lobster adaptation in the wild are needed to improve conservation effectiveness. This study demonstrates that applying innovative and sustainable aquaculture technologies can enhance spiny lobster productivity while supporting marine ecosystem preservation. This aquaculture model can be replicated to optimize fisheries potential in other coastal areas.Keywords: Panulirus penicillatus, lobster aquaculture, feed efficiency, water quality, sustainable conservation
Peran Taman Wisata Alam Mangrove Angke Kapuk Dalam Peningkatan Kesadaran Dan Edukasi Serta Minat Wisatawan Pada Wisata Berkelanjutan Fadhlurrahman, Bintang Mahardika; Maulina, Ine; Prihadi, Donny Juliandri; Nurhayati, Atikah; Kristiadhi, Fanny
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.31923

Abstract

ABSTRAKPenelitian ini mengkaji pengelolaan dan peran Taman Wisata Alam (TWA) Mangrove Angke Kapuk sebagai kawasan konservasi sekaligus destinasi ekowisata berkelanjutan di kawasan perkotaan Jakarta. Penelitian dilakukan menggunakan metode kualitatif deskriptif, dengan data primer yang diperoleh melalui observasi langsung, wawancara, dan partisipasi dalam kegiatan konservasi, serta data sekunder dari literatur dan dokumen pengelola kawasan. . Hasil penelitian menunjukkan TWA Mangrove Angke Kapuk berhasil memadukan pelestarian lingkungan dan pengembangan wisata melalui kegiatan konservasi, edukasi lingkungan, pengelolaan fasilitas wisata, serta pemberdayaan masyarakat lokal. TWA Mangrove Angke Kapuk menunjukkan keseimbangan antara aspek ekologi, ekonomi, dan edukasi yang dapat dijadikan model pengembangan wisata berkelanjutan khususnya di kawasan perkotaan.Kata Kunci: Taman Wisata Alam, Mangrove, Ekowisata, Edukasi Lingkungan, Wisata BerkelanjutanABSTRACTThis study examines the management and role of the Angke Kapuk Mangrove Nature Park (TWA) as a conservation area and sustainable ecotourism destination in the Jakarta metropolitan area. The study was conducted using descriptive qualitative methods, with primary data obtained through direct observation, interviews, and participation in conservation activities, as well as secondary data from literature and area management documents. The results of the study show that the Angke Kapuk Mangrove Nature Park has successfully combined environmental preservation and tourism development through conservation activities, environmental education, tourism facility management, and local community empowerment. The Angke Kapuk Mangrove Nature Park demonstrates a balance between ecological, economic, and educational aspects that can be used as a model for sustainable tourism development, especially in urban areas.Keywords: Natural Tourism Park, Mangrove, Ecotourism, Environmental Education, Sustainable Tourism
Analysis of Hematological Profile of Catfish (Clarias sp.) as a Health Indicator Use of Hemolyzer for Aquatic Animals Pardede, Maria Agustina; Aziz, Muhammad Abdul; Apriliani, Dian Putri; Kumalaningrum, Dwi Retna; Ambarwati, Dewi; Maulidia, Farida; Asyabil, Alin; Maulana, Muhammad Hilmy
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.27494

Abstract

ABSTRACTThe hematological profile of catfish (Clarias sp.) is a critical indicator of health and well-being in aquaculture practices. This study aimed to analyze the hematological parameters of catfish under aquaculture conditions using two different hematology analyzers: Hemolyzer 3 Pro and Veterinary Hematology Analyzer Mindray Series BC2800Vet. Blood samples were collected from the caudal vein, anticoagulated with EDTA, and analyzed for red blood cell count (RBC), white blood cell count (WBC), hemoglobin (Hb), hematocrit (Hct), mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), and platelet count (PLT). Results indicated significant variations between the analyzers. The Hemolyzer 3 Pro indicated elevated levels, with Hb ranging from 15.7 to 16.7 g/dl, RBC from 2.66 to 2.79 × 10^6/mm³, and WBC from 92,200 to 98,040 × 10^6/mm³, suggesting possible polycythemia and an active immune response. In contrast, the Mindray Analyzer reported values within the normal range, with Hb at 7.2 g/dl, RBC at 1.43 × 10^6/mm³, and WBC at 46,100 × 10^6/mm³, implying stable health conditions. The study also observed monocytosis, indicative of potential chronic inflammation or infection. These discrepancies highlight the importance of standardized methodologies in hematological assessments. Regular monitoring of hematological parameters is essential for early disease detection and effective management in aquaculture. Further research is recommended to explore the underlying causes of these variations and to optimize health management strategies for catfish in aquaculture systems.Keywords: Aquaculture, Catfish, Haemolyzer, Hematology
Analisis Implementasi Standar Pariwisata Berkelanjutan Di Desa Wisata Bahari Tangkolak Winoto, Arshylla Optiandeetyas; Suryana, Asep Agus Handaka
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.31825

Abstract

ABSTRAKIndonesia merupakan negara kepulauan yang memiliki potensi bahari melimpah, mencakup ekosistem mangrove, terumbu karang, dan keanekaragaman spesies laut yang menjadikannya basis strategis dalam pengembangan pariwisata berkelanjutan. Desa Wisata Bahari Tangkolak di Kabupaten Karawang merupakan salah satu destinasi yang diarahkan untuk menjadi model pengembangan wisata bahari berbasis konservasi lingkungan dan pemberdayaan masyarakat lokal. Analisis ini difokuskan untuk menganalisis tingkat implementasi standar pariwisata berkelanjutan di Desa Wisata Bahari Tangkolak dengan merujuk pada Permenparekraf Nomor 9 Tahun 2021 tentang Pedoman Destinasi Pariwisata Berkelanjutan serta standar Cleanliness, Health, Safety, and Environmental Sustainability (CHSE). Metode penelitian yang digunakan adalah kualitatif deskriptif melalui observasi, wawancara, dokumentasi, dan analisis kesenjangan antara kondisi aktual dengan regulasi. Hasil analisis menunjukkan bahwa dari 12 dokumen utama yang dipersyaratkan, hanya dua yang telah tersedia, yaitu struktur organisasi dan mekanisme kotak saran, sementara dokumen penting lain seperti SOP keadaan darurat, analisis daya dukung wisatawan, dan pedoman CHSE belum tersedia. Kondisi tersebut mengindikasikan adanya kesenjangan yang signifikan dalam tata kelola destinasi. Penelitian ini menyimpulkan bahwa pengelolaan Desa Wisata Bahari Tangkolak masih berada pada tahap awal sehingga memerlukan penguatan regulasi, peningkatan kapasitas sumber daya manusia, serta penyusunan dokumen pendukung secara bertahap. Rekomendasi penelitian menekankan pentingnya menjadikan sertifikasi CHSE sebagai prioritas, disertai strategi pemberdayaan masyarakat lokal untuk meningkatkan daya saing dan keberlanjutan Desa Wisata Bahari Tangkolak.Kata Kunci : Desa Wisata Bahari Tangkolak, Pariwisata Berkelanjutan, Analisis KesenjanganABSTRACTIndonesia is an archipelagic country with abundant marine resources, including mangrove ecosystems, coral reefs, and a diversity of marine species, making it a strategic base for sustainable tourism development. Tangkolak Marine Tourism Village in Karawang Regency is one destination aimed at becoming a model for marine tourism development based on environmental conservation and local community empowerment. This study aims to analyze the level of implementation of sustainable tourism standards in Tangkolak Marine Tourism Village, referring to Minister of Tourism and Creative Economy Regulation Number 9 of 2021 concerning Guidelines for Sustainable Tourism Destinations and Cleanliness, Health, Safety, and Environmental Sustainability (CHSE) standards. The research method used was descriptive qualitative through observation, interviews, documentation, and gap analysis between actual conditions and regulations. The results showed that of the 12 required key documents, only two were available: the organizational structure and suggestion box mechanism. While other important documents, such as emergency SOPs, tourist carrying capacity analysis, and CHSE guidelines, were not yet available. This condition indicates a significant gap in destination governance. This study concludes that the management of the Tangkolak Marine Tourism Village is still in its early stages, requiring regulatory strengthening, human resource capacity building, and the gradual development  of supporting  documents. The study's  recommendations  emphasize  the importance of prioritizing CHSE certification, along with local community empowerment strategies, to enhance the competitiveness and sustainability of the Tangkolak Marine Tourism Village.Keywords: Tangkolak Marine Tourism Village, Sustainable Tourism, Gap Analysis
Pemetaan Spasial dan Temporal Sebaran Terumbu Karang Menggunakan Penginderaan Jauh Di Pulau Sebesi Minsaris, La Ode Alam; Anzani, Luthfi; Rahardjo, Cakra; Triyanti, Triyanti
Juvenil Vol 7, No 1: Februari 2026
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v7i1.24383

Abstract

ABSTRAKTsunami Gunung Krakatau yang terjadi pada tahun 2018 menyebabkan banyak perubahan kondisi pulau-pulau kecil, terutama kondisi ekosistem terumbu karang, namun informasi kondisi sebaran terumbu terumbu karang akibat gempa masih terbatas. Tujuan penelitian ini adalah memetakan sebaran terumbu karang secara spasial dan temporal dengan citra satelit Landsat 8 dan Sentinel-2 sebelum dan sesudah terjadi tsunami tahun 2018 dengan validasi lapangan untuk memastikan hasil pemetaan yang didapatkan.  Metode yang digunakan untuk memetakan sebaran terumbu karang yakni klasifikasi berbasis terbimbing atau supervised learning (SVM) menggunakan GEE dan ArcGis Pro. Hasil penelitian menunjukan dampak besar bencana tsunami yang mempengaruhi nilai luasan ekosistem terumbu karang di Pulau Sebesi, hal ini terlihat pada tahun 2018 luasan tutupan karang sebesar 178,8 Ha, tahun 2019 setelah tsunami mengalami penurunan dengan nilai tutupan berkisar 79,5 Ha. Jumlah tutupan karang setelah tsunami yaitu periode tahun 2020-2023 mengalami fluktuasi dengan tutupan karang secara berturut-turut yaitu 88,9 Ha, 64,2 Ha, 88,7 Ha, dan 70,3 Ha. Hasil pengamatan menunjukan penurunan tutupan karang sebelum dan setelah terjadinya tsunami berbanding terbalik dengan jumlah tutupan pasir yaitu seluas 45,4 Ha pada tahun 2018 dan mengalami peningkatan pada tahun 2019 menjadi 65,4 Ha. Perubahan luasan terumbu karang di Pulau Sebesi secara spasial dan temporal dalam kurun waktu enam tahun terakhir dipengaruhi oleh faktor manusia dan secara alami, namun penyumbang kerusakan tersebar diakibatkan oleh tsunami tahun 2018 dengan penurunan berkisar 99,3 Ha yang digantikan oleh substrat pasir yang terbawa oleh energi gelombang tsunami dan banyaknya rubble yang ditemukan di pesisir Pulau Sebesi akibat peristiwa bencana tsunami sehingga kedua faktor tersebut menjadi faktor utama yang menginformasikan penurunan tutupan karang secara signifikan di Pulau Sebesi selama kurun waktu enam tahun terakhir.Kata Kunci: Tsunami, Pulau Sebesi, Terumbu Karang, Sentinel 2, SVMABSTRACTThe Krakatoa Mountain Tsunami that occurred in 2018 brought about numerous changes in the conditions of small islands, especially the coral reef ecosystems. However, information regarding the distribution of coral reefs due to the earthquake is still limited. The purpose of this research is to spatially and temporally map the distribution of coral reefs using Landsat 8 and Sentinel-2 satellite imagery before and after the 2018 tsunami, with field validation to ensure the accuracy of the mapping results. The method used to map the coral reef distribution is supervised learning (SVM) based classification using Google Earth Engine (GEE) and ArcGIS Pro. The research results show a significant impact of the tsunami disaster on the coral reef ecosystem in Sebesi Island. In 2018, the coral cover area was 178.8 hectares, but in 2019, after the tsunami, it decreased to approximately 79.5 hectares. The coral cover in the post-tsunami period from 2020 to 2023 fluctuated with values of 88.9 hectares, 64.2 hectares, 88.7 hectares, and 70.3 hectares consecutively. Observations indicate that the decrease in coral cover before and after the tsunami is inversely related to the sand cover, which was 45.4 hectares in 2018 and increased to 65.4 hectares in 2019. Changes in the spatial and temporal extent of coral reefs in Sebesi Island over the past six years were influenced by both natural and human factors. However, the major contributor to the damage was the 2018 tsunami, causing a decrease of approximately 99.3 hectares, which was replaced by sand substrate carried by the tsunami wave energy and the abundance of rubble found on the coast of Sebesi Island as a result of the tsunami disaster. These two factors played a significant role in the substantial decline in coral cover in Sebesi Island over the past six years.Keywords: Tsunami, Sebesi Island, Cooral Reefs, Sentinel-2, SVM
Pengaruh Ekstrak Daun Bakau Hitam (Rhizophora mucronata) Terhadap Komposisi Kimia Fillet Ikan Tenggiri Selama Penyimpanan Dingin Sabela, Bendi
Juvenil Vol 7, No 1: Februari 2026
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v7i1.33136

Abstract

ABSTRAKIkan merupakan bahan pangan yang mudah mengalami kebusukan. Penggunaan ekstrak tumbuhan yang tinggi akan senyawa bioaktif juga diharapkan dapat membantu mempertahankan mutu ikan selama penyimpanan suhu rendah. Ekstrak daun Rhizophora mucronata memiliki kandungan senyawa bioaktif dan bioaktivitas yang berpotensi untuk dimanfaatkan sebagai bahan alami dalam pengawetan ikan terutama untuk mencegah kerusakan komposisi proksimat ikan. Penelitian ini bertujuan untuk menentukan pengaruh penggunaan ekstrak daun R. mucronata terhadap komposisi proksimat fillet ikan tenggiri selama penyimpanan dingin. Daun R. mucronata diekstrak menggunakan etanol 70% dengan rasio 1:6 (b/v). Konsentrasi ekstrak yang digunakan untuk merendam fillet ikan tenggiri, yakni 0, 1, 3, dan 7%. Fillet ikan tenggiri disimpan selama 14 hari di dalam refrigerator (4 ± 2 °C) dan diamati pada hari ke- 0, 7, dan 14. Setiap waktu pengamatan, fillet dianalisis kadar air, kadar protein, kadar lemak, dan kadar abu. Hasil menunjukkan bahwa pemberian ekstrak daun R. mucronata tidak berpengaruh signifikan (p 0,05) terhadap kadar air, kadar protein, kadar lemak, dan kadar abu fillet ikan tenggiri. Konsentrasi ekstrak daun R. mucronata yang digunakan belum cukup untuk mencegah dan menghambat kerusakan komposisi proksimat yang terjadi pada fillet ikan tenggiri selama penyimpanan dingin. Kadar protein dan lemak fillet ikan tenggiri menunjukkan kecenderungan menurun selama penyimpanan dingin karena adanya proses degradasi. Kadar abu penggunaan konsentrasi ekstrak 3% dan 7% menunjukkan kecenderungan meningkat karena adanya penurunan kadar air.Kata Kunci: Ekstrak mangrove, Kadar proksimat, Mutu ikan, Pengawet alami, ProteinABSTRACTFish is a type of food that is easily spoiled. The use of plant extracts high in bioactive compounds is expected to help maintain fish quality during low-temperature storage. Rhizophora mucronata leaves extract contains bioactive compounds and bioactivities that have the potential to be used as natural ingredients in fish preservation, especially to prevent damage to the proximate composition of fish. This study aims to determine the effect of the use of R. mucronata leaves extract on the proximate composition of narrow-barred spanish mackerel fillets during cold storage. R. mucronata leaves were extracted using 70% ethanol with a ratio of 1:6 (w/v). The extract concentrations used to soak narrow-barred spanish mackerel fillets were 0, 1, 3, and 7%. Narrow-barred spanish mackerel fillets were stored for 14 days in a refrigerator (4 ± 2 °C) and observed on days 0, 7, and 14. At each observation time, the fillets were analyzed for moisture content, protein content, fat content, and ash content. The results showed that the use of R. mucronata leaves extract had no significant effect (p 0.05) on the moisture content, protein content, fat content, and ash content of narrow-barred spanish mackerel fillets. The concentration of R. mucronata leaves extract used was not sufficient to prevent and inhibit the damage to the proximate composition that occurred in narrow-barred spanish mackerel fillets during cold storage. The  protein  and  fat content of narrow-barred spanish mackerel fillets showed a tendency to decrease during cold storage due to the degradation process. The ash content at 3% and 7% extract concentrations showed a tendency to increase due to a decrease in water content.Kata Kunci: Fish quality, Mangrove extract, Natural preservatives, Protein, Proximate content
Analisis Penggunaan Probiotik Fish Pro Terhadap Kelimpahan Plankton Pada Budidaya Ikan Lele Mutiara (Clarias gariepinus) Menggunakan Metode Bioflok Pahlevi, Firdha Maulidyah; Asrudi, Lutfia Ardita Mayra Putri; Zainuri, Muhammad; Junaedi, Abdus Salam; Triajie, Haryo
Juvenil Vol 7, No 1: Februari 2026
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v7i1.29788

Abstract

ABSTRAKBudidaya ikan lele di Bangkalan mengalami kesulitan berupa biaya pakan yang tinggi dan keterbatasan lahan, dengan ini metode bioflok menjadi alternatif untuk mengatasi permasalahan tersebut karena mampu menghasilkan pakan alami dengan tambahan probiotik. Selain itu dapat memperbaiki kualitas air melalui bakteri Bacillus sp, mampu meningkatkan kelimpahan plankton, kadar nitrat dan menekan kadar ammonia pada budidaya. Oleh karena itu, penelitian ini bertujuan untuk menganalisis penggunaan probiotik fish pro terhadap kelimpahan, indeks keanekaragaman dan indeks dominansi plankton serta kandungan nitrat pada kolam budidaya bioflok. Data diperoleh dari 2 kolam yang memiliki perlakuan berupa penggunaan probiotik melalui pakan dan air. Pendataan penelitian ini dilakukan setiap 4 hari sekali. Hasil penelitian untuk kelimpahan plankton di kolam probiotik pada air lebih tinggi yaitu 53,5x105 – 17,05x106 Ind/L dibandingkan di kolam pada pakan yaitu 26,5x105 – 13,25x106 Ind/L. Indeks keanekaragaman plankton pada kedua kolam termasuk ke dalam kategori sedang (1 H’ 3), sedangkan indeks dominansi plankton untuk kedua kolam tergolong kategori rendah (0,00 C ≤ 0,50). Kadar nitrat di kolam probiotik pada air yaitu 2,07 mg/L – 17,63 mg/L lebih tinggi daripada kolam probiotik pada pakan, yaitu antara 2,85 mg/L – 14,42 mg/L. Penggunaan probiotik fish pro pada air berimplikasi positif terhadap kelimpahan, indeks keanekaragaman, dan indeks dominansi plankton serta menunjukkan hubungan positif terhadap ketersediaan nitrat di kolam budidaya bioflok. Kata Kunci: Probiotik fish pro, Metode Bioflok, Plankton, dan NitratABSTRACTCatfish cultivation in Bangkalan experiences difficulties in the form of high feed costs and limited land, with this biofloc method is an alternative to overcome these problems because it is able to produce natural feed with the addition of probiotics. In addition, it can improve water quality through Bacillus sp bacteria, able to increase plankton abundance, nitrate levels and reduce ammonia levels in cultivation. Therefore, the study aims to analyze the use of fish pro probiotics on abundance, diversity index and plankton dominance index as well as nitrate content in biofloc cultivation ponds. Data were obtained from 2 ponds that had treatment in the form of the use of probiotics through feed and water. Data collection for this research is carried out every 4 days. The results of the study for plankton abundance in probiotic ponds in water were higher, namely 53.5x105 – 17.05x106 Ind/L compared to ponds in feed, which was 26.5x105 – 13.25x106 Ind/L. The plankton diversity index in both ponds was included in the medium category (1 H' 3), while the plankton dominance index for both ponds was classified as low (0.00 C ≤ 0.50). The nitrate levels in probiotic pools in water are 2.07 mg/L – 17.63 mg/L higher than in probiotic pools in feed, which is between 2.85 mg/L – 14.42 mg/L. The use of probiotic fish pro in water has positive implications for abundance, diversity index, and plankton dominance index and shows a positive relationship with the availability of nitrates in biofloc aquaculture ponds.Keywords: Probiotic fish pro, Biofloc Method, Plankton, and Nitrate
Evaluasi Mutu Kimia dan Senyawa Bioaktif Amplang Ikan Tongkol (Euthynnus affinis) dengan Fortifikasi Tepung Rumput Laut (Eucheuma cottonii) Syahril, Mohamad; Dewanto, Didit Kustantio; Aristawati, Anita Treisya; Finarti, Finarti; Renol, Renol; Mubin, Mubin; Husna, Asmaul; Kuatno, Riska Indriani
Juvenil Vol 7, No 1: Februari 2026
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v7i1.32155

Abstract

ABSTRAKPenelitian ini bertujuan untuk mengevaluasi mutu kimia dan kandungan senyawa bioaktif pada amplang ikan tongkol (Euthynnus affinis) yang difortifikasi dengan tepung rumput laut Eucheuma cottonii pada berbagai level penambahan (0 g, 5 g, 10 g, dan 15 g). Penelitian dilakukan di Laboratorium Teknologi Hasil Perikanan STPL Palu dan Laboratorium FMIPA Universitas Tadulako. Analisis mutu kimia meliputi uji kadar air, abu, protein, lemak karbohidrat dan serat yang mengacu pada metode AOAC, 2005. Uji fitokimia untuk menentukan komponen bioaktif yang terkandung dalam suatu bahan yang meliputi pemeriksaan senyawa flavonoid, saponin, tanin, fenolik, triterpenoid, dan steroid. Hasil analisis menunjukkan bahwa penambahan tepung rumput laut meningkatkan kadar air (2,00–6,00%), abu (2,67–5,33%), protein (22,13–29,14%), karbohidrat (19,14–22,54%), dan serat kasar (0,96–3,90%). Sebaliknya, kadar lemak menurun seiring meningkatnya penambahan tepung rumput laut, dari 19,89% menjadi 17,49%. Uji fitokimia menunjukkan keberadaan senyawa bioaktif seperti flavonoid, saponin, polifenol, tanin, dan alkaloid pada perlakuan dengan penambahan tepung rumput laut, sedangkan steroid tidak terdeteksi. Senyawa-senyawa tersebut diketahui memiliki aktivitas antioksidan serta manfaat farmakologis penting, sehingga memperkuat potensi amplang ikan tongkol sebagai pangan fungsional. Hasil penelitian ini menegaskan bahwa fortifikasi tepung rumput laut E. cottonii dapat meningkatkan nilai gizi, memperkaya serat, serta menambah kandungan senyawa bioaktif pada produk amplang ikan tongkol. Dengan demikian, inovasi ini berpotensi mendukung diversifikasi pangan berbasis sumber daya kelautan dan meningkatkan nilai tambah produk olahan ikan.Kata Kunci : Mutu Kimia, Amplang, Ikan Tongkol, Fortifikasi, Rumput LautABSTRACTThis study aimed to evaluate the chemical quality and bioactive compounds of amplang made from skipjack tuna (Euthynnus affinis) fortified with Eucheuma cottonii seaweed flour at various levels of addition (0 g, 5 g, 10 g, and 15 g). The research was conducted at the Laboratory of Fisheries Product Technology, STPL Palu, and the Laboratory of FMIPA, Tadulako University. Chemical quality analyses included moisture, ash, protein, lipid, carbohydrate, and crude fiber content based on AOAC (2005) methods. Phytochemical tests were carried out to identify the presence of bioactive components, including flavonoids, saponins, tannins, phenolics, triterpenoids, and steroids. The results showed that the addition of seaweed flour increased the levels of moisture (2.00–6.00%), ash (2.67–5.33%), protein (22.13–29.14%), carbohydrates (19.14–22.54%), and crude fiber (0.96–3.90%). Conversely, lipid content decreased with the increasing addition of seaweed flour, from 19.89% to 17.49%. All chemical quality parameters were still in accordance with the quality standards of SNI 7762-2013. Phytochemical analysis confirmed the presence of bioactive compounds such as flavonoids, saponins, polyphenols, tannins, and alkaloids in the fortified samples, while steroids were not detected. These compounds are known to possess antioxidant activity and important pharmacological benefits, thereby reinforcing the potential of frigate tuna amplang as a functional food. The findings highlight that fortification with E. cottonii seaweed flour can enhance nutritional value, enrich fiber content, and increase the bioactive compounds of frigate tuna amplang. Therefore, this innovation has the potential to support food diversification based on marine resources and increase the added value of fishery products.Keywords: Chemical Quality, Amplang, Skipjack Tuna, Fortification, Seaweed

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