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All Journal JOURNAL OF COASTAL DEVELOPMENT ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology GEMA TEKNOLOGI METANA Jurnal Perikanan dan Kelautan Journal of Marine Research BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Kelautan Tropis JMM (Jurnal Masyarakat Mandiri) Marine Research in Indonesia Jurnal Ilmiah Samudra Akuatika Journal of Tropical Marine Science Budimas : Jurnal Pengabdian Masyarakat Economics and Digital Business Review Journal of Applied Geology Jurnal Suara Pengabdian 45 Prosiding Seminar Nasional Unimus Journal of Fisheries & Marine Jurnal Perikanan dan Kelautan Cakrawangsa Bisnis
Retno Hartati
Department Of Marine Science, Faculty Of Fisheries And Marine Science, Diponegoro University. Tembalang Campus, Semarang, Indonesia Tel. / Fax. +6224 7474698
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Nursing Physics Public Health Social Sciences Veterinary Other

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Pendampingan Pengenalan Budidaya Terpadu Sayur Mayur Dan Ikan (Bukdamer) Di Kelurahan Lempongsari, Kecamatan Gajahmungkur Retno Hartati; Widianingsih; Ria Azizah
Jurnal Suara Pengabdian 45 Vol. 3 No. 2 (2024): Juni Jurnal Suara Pengabdian 45
Publisher : LPPM Universitas 17 Agustus 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/pengabdian45.v3i2.1643

Abstract

Tujuan pengabdian masyarakat adalah pengenalan metode dan teknologi tepat guna dengan metode akuamber untuk teknik memadukan usaha bertanam sayur mayur dengan budidaya ikan dalam wadah ember. Pelaksanaan kegiatan di lahan sempit, pekarangan dan masih terkena sinar matahari karena tanaman sayuran dan ikan membutuhkan sinar matahari. Hasil usaha dapat dimanfaatkan konsumsi, peningkatan gizi bagi Balita dan anak serta anggota keluarga yang lain. Bahkan dapat dikonsumsi bersama dalam kegiatan rukun tetangga (RT/RW) dan kegiatan PKK sebagai usaha swadaya masyarakat. Keberlanjutan kegiatan PPM kepada kelompok sasaran dapat meningkatkan ketahanan pangan keluarga dengan menerapkan aplikasi probiotik pada budidaya polikultur antara ikan dan tanaman sayuran skala rumah tangga.
Chlorophyll Content of Chlorella vulgaris (Beijerinck, 1890) on Different Light Intensity Khairunnisa, Khairunnisa; Hartati, Retno; Widowati, Ita
Buletin Oseanografi Marina Vol 13, No 1 (2024): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v13i1.59218

Abstract

Chlorella vulgaris is a green microalga (Chlorophyta) known to produce chlorophyll pigment as its primary pigment. Chlorophyll is known for its health benefits because it helps heal wounds and prevent hemophilia and diabetes and asthma. Chlorophyll is one of the pigments targeted as a functional food source. One of the environmental parameters that can affect chlorophyll content is the presence of light. This study aims to determine the effect of differences in light intensity on the chlorophyll content of C. vulgaris. The method used in this research is experimental, conducted in the laboratory using a completely randomized design (RAL). ANOVA is the statistical analysis used to analyze the effect of light intensity on chlorophyll content in C. vulgaris. C. vulgaris was cultivated with three different light intensity treatments, namely 1500, 3000, and 4500 lux, with three repetitions each. The growth of C. vulgaris was observed for 8 x 24 hours and then harvested by centrifugation on the eighth day to obtain the wet biomass. Cultivation wet biomass was extracted using acetone PA solvent. The acetone extract of C. vulgaris was analyzed for its chlorophyll pigment content using a spectrophotometer at 645 and 663 nm absorbance. The highest content of chlorophyll-a, b, and chlorophyll produced at a light intensity of 1500 lux was 26.2, 48.5, and 74.7 µg/ml, respectively. According to the results of statistical analysis, it can be concluded that different light-intensity treatments did not show a significant effect (p>0.05) on the content of chlorophyll-a, b, and total chlorophyll in C. vulgaris.
PELATIHAN PENULISAN SASTRA ANAK DAN PENGEMBANGAN MAJALAH SEKOLAH DI SMP MUHAMMADIYAH NANGGULAN KULON PROGO Dharma, Laga Adhi; Septiani, Nur Alifah; Ningrum, Malinda Satya; Hawa, Adnin Kamil Bani; Rohmah, Ivatur; Bastiar, Yusuf; Hartati, Retno
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol. 6 No. 2 (2024): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

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Abstract

Daya kreatifitas siswa dapat terasah salah satunya dengan meningkatkan bacaan terhadap karya sastra. Karya sastra menjadi pintu masuk sisws untuk membentuk imajinasi-imajinasi yang lebih luas lagi. Pengabdian kepada Masyarakat ini bertujuan untuk menumbuhkan kreatifitas siswa serta meningkatkan literasi bahasa dan sastra di SMP Muhammadiyah Nanggulan. Metode yang digunakan dalam kegiatan adalah sosialiasai, pelatihan, dan pendampingan. Berdasarkan metode tersebut, terdapat beberapa kegiatan yang dilakasanakan dalam pengabdian ini yaitu sosisalisasi sastra anak, penulisan sastra anak dan pendampingan pengelolaan majalah “SUMUNAR”. Kegiatan-kegiatan ini sebagai pembuka awal kreatifitas siswa dalam mengenal sastra anak, dan sekaligus memacu siswa untuk menuliskan atau menghasilkan karya sastra anak. Selain itu, pendampingan yang dilakukan dapat memberi wawasan baru kepada para redaksi baik dari siswa maupun guru tentang bagaimana regulasi dan pengelolaan sebuah majalah. Majalah yang diiterbitkan juga akan banyak berisi tentang hasil kreatifitas siswa dalam hal menulis, melukis, dan hal-hal positif lainnya. Kegiatan ini tidak hanya dilaksanakan dalam satu kurun waktu saja, akan tetapi dilaksanakan secara terus menerus dan berlanjut.
Struktur Komunitas Ikan Karang di Perairan Kota Sorong, Papua Barat Daya, Indonesia Ghofir, Abdul; Haryanti, Dwi; Hartati, Retno; Orisu, Anthon Apolos
Jurnal Kelautan Tropis Vol 28, No 3 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i3.28886

Abstract

Reef fish are one of the biota that are sensitive to environmental changes. Their abundance and diversity are supported by good coral reef conditions. This makes them a bioindicator of coral reef conditions. This study aims to examine the diversity of reef fish, ecological indices, and conditions of coral reef benthic substrates in Sorong City waters from September to November 2024 at ten research stations using the Underwater Visual Census (UVC) and Underwater Photo Transect (UPT) methods. The study found 174 species of reef fish from 26 families (107 major, 55 target, and 12 indicator). The diversity (H') and evenness (E) indices were moderate to high at 1.59-3.41 and 0.41-0.89, respectively, and dominance (C) was low at 0.04-0.48. PCA analysis showed that hard coral cover (HC) as the main determinant of reef fish community structure correlated with the families Pomacentridae, Chaetodontidae, Scaridae, Pempheridae, and Blennidae. This finding is important for marine resource management and conservation in the waters of Sorong City.   Ikan karang merupakan salah satu biota yang peka dengan perubahan lingkungan. Kelimpahan dan keanekaragamannya didukung oleh kondisi terumbu karang yang baik. Hal ini menjadikannya sebagai bioindikator kondisi terumbu karang. Penelitian ini bertujuan mengkaji keanekaragaman ikan karang, indeks ekologi, dan kondisi substrat bentik terumbu karang di perairan Kota Sorong pada September-November 2024 di sepuluh stasiun penelitian menggunakan metode Underwater Visual Census (UVC) dan Underwater Photo Transect (UPT). Hasil penelitian ditemukan ikan karang 174 spesies dari 26 famili (107 mayor, 55 target, dan 12 indikator). Indeks keanekaragaman (H’) dan keseragaman (E) sedang hingga tinggi 1,59-3,41 dan 0,41-0,89, serta dominasi (C) rendah 0,04-0,48. Analisis PCA menunjukkan tutupan karang keras (HC) sebagai penentu utama struktur komunitas ikan karang berkorelasi dengan Pomacentridae, Chaetodontidae, Scaridae, Pempheridae dan Blennidae. Temuan ini penting untuk pengelolaan sumber daya laut dan konservasi di perairan Kota Sorong. 
Smart Automation of Salinity and Turbidity for Sustainable Aquaculture of Harpodon nehereus Prasetia, Abdul Muis; Gazali Salim; Linda Sartika; Mujiyanto Mujiyanto; Julian Ransangan; Ariel E San Jose; Sitti Hartinah; Retno Hartati; Rozi
Jurnal Ilmiah Perikanan dan Kelautan 2025: IN PRESS ISSUE (JUST ACCEPTED MANUSCRIPT, 2025)
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

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Abstract

Graphical Abstract   Highlight Research 1. Model of growth and mortality of otek fish (Netuma thalassina (Rüppell, 1837)) in Tarakan waters, North Kalimantan. 2. Growth, mortality, and reproductive model of Bombay duck (Harpodon nehereus, Hamilton 1822) in Juata Laut waters, North Kalimantan. 3. Growth pattern and the condition index of nomei fish Harpodon nehereus captured with mini trawl in Tarakan Waters. 4. Characteristics of Model Growth and Mortality of White Shrimp (Penaeus merguiensis de Man 1888) in The Estuaria of Bengara, Regency Bulungan. 5. Preliminary study on the domestication of giant freshwater prawn, Macrobrachium rosenbergii (De Man, 1879) from North Kalimantan, Indonesia.   Abstract Automated water quality monitoring systems are urgently needed to ensure fish health and maintain aquaculture product quality. This study develops an adaptive microcontroller-based control system that automatically regulates salinity and turbidity to support the sustainable aquaculture of Harpodon nehereus. This study developed and evaluated a microcontroller-based system for automated regulation of salinity and turbidity in H. nehereus aquaculture ponds. Methods involved environmental observation, sensor calibration, system design, and field validation of a digital sensor-based water quality controller, tested in a pilot estuarine pond to keep salinity (~17‰) and turbidity (20-30 NTU) within optimal ranges. Calibration results obtained through linear regression analysis showed strong correlation with standard instruments (R² = 0.94 for salinity and R² = 0.93 for turbidity). Field trials demonstrated effective maintenance of turbidity within 22-27 NTU for 24 hours, and stepwise tests confirmed the system’s ability to track real-time salinity shifts. These results indicate that the microcontroller-based system effectively stabilises key water parameters for H. nehereus aquaculture and performs more efficiently than open systems. As one of the first integrated systems designed for automated salinity and turbidity regulation in estuarine aquaculture, it offers a practical and scalable approach to improve sustainability and ensure the food security of coastal fisheries. Future work should extend control to pH, DO, and temperature, refine calibration with predictive algorithms and wireless connectivity so that it can be used more widely in precision aquaculture with fish stocks.      
Co-Authors Abdul Ghofir Abdul Hadi Abdul Latif Mahakar Abdul Muis Prasetia, Abdul Muis Abdullah Afif Abdullah Afif Abidin Nur II Achmad Muhajir Adi Santoso Adiyoga, Diaz Agus Sabdono Agus Trianto Agustiningsih, Luluk Akbarinissa, Rr. Dyah Artati Akhmad Syarifudin Aklif Reza Muttaqin Aldion Adin Nugroho Ali Djunaedi Ali Djunaedi Ali Junaedi Ali Ridlo Altysia Putriany Amalia Rofiah Amalia Rofiah Amar, Fahri Ambariyanto Ambariyanto Anak Agung Istri Sri Wiadnyani Anam, Aufa Anastasia Dian R Anindya Wirasatriya Antonius Budi Susanto Apriliani, Seka Indah Ariel E San Jose Arif Rahman Arumning T. Fauziah Aufa Anam Azizah T.N., Ria Bastiar, Yusuf Bifa Aulia Manuhuwa Bintang Septiarani Broto Wisnu RTD Broto, R. T.D Wisnu Candhika Yusuf Cantik Sitta Devayani Cantika Elistyowati Andanar CB. Ronaldi Chandra E Chrisna Adhi Suryono Chrisna Adi Suryono Cristiana Manullang David Nugroho Delianis Pringgenies Delianis Pringgenies Denny Nugroho Sugianto Dharma, Laga Adhi Diah Permata Wijayanti Diaz Adiyoga Dina Ayu Magfirani Dinda Richa Kumarahaqi Donna Nur'Aurelya Mahardhika Dwi Haryanti, Dwi Dwi Saniscara Wati Edi Supriyo Edi Wibowo Edi Wibowo Kushartono Edi Wibowo Kushartono Edy Supriyo Edy Supriyo Edy Supriyo Edy Wibowo Edy Wibowo Elis Indrayanti Endika Meirawati Erik Wijaya Kusuma Ervia Yudiati Esti Rudiana Ety Parwati Ety Parwati Ety Parwati Fitriyan, Jodhi Kusumayudha Frijona Fabiola Lokollo Gangsar Bayu Setia Nugroho Gangsar Bayu Setia Nugroho Gazali Salim Ginzel, Fanny Iriany Gunawan Widi Santosa H. Endrawati Hadi Endrawati Hadi Endrawati Hani’atun Nurfajriyah Hariyadi Hariyadi Harmoko Harmoko Haryo Farras Raditya Hutama Hawa, Adnin Kamil Bani Heri Yanti Hermawan Hermawan Hermawan Hermawan Hermin Pancasakti Kusumaningrum Hilal M I Wayan Warmada Ibnu Pratikto Ibnu Pratikto Ika Desie Wulandari Ira Kolaya Ira Kolaya, Ira Ireng Sigit Atmanto Irwani Irwani Isai Yusidarta Isti Pudjihastuti Ita Riniatsih Ita Widowati Itsna Yuni H Jelita Rahma Hidayati Johannes Hutabarat Jufri Ubay Julian Ransangan Jussac Maulana Masjhoer Justin Cullen Jusup Suprijanto Jusup Suprijanto Jusup Suprijanto Käll, Sofia Ken Suwartimah Ken Suwartimah Khairunnisa Khairunnisa Khoerunnisa, Rizka Nabila Kholilah, Nenik Koen Praseno Koen Praseno Kusuma, Erik Wijaya Laras Kinanti Pinandita Lilik Maslukah M. Andry Herdiatma M. Andry Herdiatma Madhu Pinastika Puji Lestari Madhu Pinastika Puji Lestari, Madhu Pinastika Puji Magfirani, Dina Ayu Mahakar, Abdul Latif Mahfud Mahfud Manuhuwa, Bifa Aulia Mas’ad Arif Mayestika, Pingkan Meitri Bella Puspa Mostafa Imhmed Ighwerb Muchammad Miftahul Ulum Muchammad Miftahul Ulum Muhammad Yusuf Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Muji Wasis Indriyawan, Muji Wasis Mujiyanto Mujiyanto Mustalafin Mustalafin Mu’alimah Hudatwi Nando Arta Gusti Pamungkas Narendra Prasidya Wishnu Natasya Erdza Aulia Ningrum, Malinda Satya Nirwani Soenardjo Njurumana, Steven Nggiku Norma Afiati Nugroho, Suciadi Catur Nur Taufik SPJ Nur Taufiq Nur Taufiq-Spj Orisu, Anthon Apolos Parameswari Iccha Nirmalabuddhi Wishnuputri Petta, Constantein Philipus Uli Basa Hutabarat Pingkan Mayestika Pingkan Mayestika Pradina Purwati Pradina Purwati Pratama, Candrika Primaswatantri Permata Putri Novianingrum, Milka Putri, Dhiya Aflah Luswanto Putri, Ni Putu Purba Nava Vidyadhari Putriningtias, Andika Raden Ario Rafsanjani A. Karim Rafsanjani A. Karim Raka Pramulo Sophianto Ramadhani, Muhammad Rizqi Reny Yesiana Retno W. Astuti Ria Azizah Ria Azizah Ria Azizah Ria Azizah Ria Azizah Tri Nuraini Rizky Imtihan R. Rizky Imtihan R., Rizky Imtihan Robertus Triaji Mahendrajaya Robertus Triaji Mahendrajaya Robertus Triaji Mahendrajaya Robin Robin Rohmah, Ivatur Rotua Malau Rozi Rr. Dyah Artati Akbarinissa Rudhi Pribadi Rudi Pribadi Sarah Nabilla Sari Budi Moria Sartika, Linda Selvi Marcellia Septiani, Nur Alifah Seto Haryoardyantoro Sitti Hartinah DS Sophianto, Raka Pramulo Sri Redjeki Sri Redjeki Sri Redjeki Sri Yulina Wulandari Subagiyo Subagiyo Subagiyo Subagiyo Sugiyanto Sugiyanto Sugiyanto Sugiyanto, Nenden Rose Suryono Suryono Sutrisno Anggoro Tarigan, Ariyo Imanuel Taufiq-Spj, Nur Tiara Nur Baeti Baeti Tri Karyawati Tria Nidya Pratiwi Ubay, Jufri Ulfah Nurjanah Ulfah Nurjanah Ulfah Nurjanah, Ulfah Umi Fatimah Valentina R Iriani Valentina R. Iriani W.L. Saputra Wahyu Adi Wahyudi, Yudisthio Wibowo, Muhammad Reyhan Widianingsih Widianingsih Widianingsih Widianingsih Widianingsih Widianingsih, - Wilis Ari Setyati Wilis Ari Setyati Wishnuputri, Parameswari Iccha Nirmalabuddhi Wita Kristianty Sirait Yasir, Moh. Yoki Ristadi Yoko Nozawa Yosi Yananda Sijabat Yudho Prasetyo Yunita Anggarini, Yunita Zulfiandi Zulfiandi Zulfiandi Zulfiandi