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Water quality analysis on the growth of seaweed (Kappaphycus alvarezii) off-bottom method, Ketapang District, South Lampung Mulyono, Slamet; Susanto, Gregorius Nugroho; Riantini, Maya; Setyawan, Agus; Abidin, Zainal
Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil Vol 9, No 2 (2025)
Publisher : Sangia Research Media and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.akuatikisle.9.2.67-71

Abstract

Seaweed Kaphapicus alvarezii is very popular in cultivation because it has high economic value and has quite large development potential in Ruguk Village, Ketapang District, South Lampung Regency. Water quality is a factor that influences the growth of seaweed, including the Kaphapicus alvarezii type, both physical and chemical water quality. This research aims to determine the condition of water quality in the seaweed cultivation area of Ruguk Village, Ketapang District, South Lampung Regency, meets the optimal living conditions for cultivating Kaphapicus alvarezii seaweed. This research is a type of descriptive research with a survey method carried out by taking water samples at seaweed cultivation locations and measuring the increase in seaweed growth every week for 4 weeks. The parameters observed in this research were the physical and chemical parameters of the water quality of the seaweed rearing media at the research location which consisted of temperature, brightness, current, pH, salinity, dissolved oxygen (DO), and phosphate and relative growth of the seaweed. Based on the results of observations during the research, it can be concluded that the water quality conditions, both physical and chemical water quality in the seaweed cultivation area in Ruguk Village, Ketapang District, South Lampung Regency, are in accordance with the standard quality requirements for the growth of Kaphapicus alvarezii seaweed, namely temperature 29.1-30.2⁰C, brightness 0,8-1.5 m, current strength 0.20-0.37m/sec, depth 0.8–1.5 m, pH 7.5-8.17, salinity 26-30 ppt, DO of 4.6-7.2 ppm, nitrate 0.2-0.92 mg/L and phosphate of 0.258-0.711 mg /L
EFFECTIVENESS WHOLE CELL VACCINE Edwardsiella ictaluri WITH DIFFERENT DOSAGE AND METHODS FOR PROTECTING SIAMESE CATFISH (Pangasianodon hypophthalmus) AGAINST EDWARDSIELLOSIS DISEASE Listia, Octa; Setyawan, Agus; Kholidin, Edy Barkat
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol. 11 No. 1 (2022)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v11i1.p%p

Abstract

One of major problem of siamse catfish (Pangasianodon hypophthalmus) culture is Edwardsiliosis bacterial disease of Edwardsiella ictaluri, causes economic losses because it causes high mortality and reduces the quality of fishery products. Currently, the use of antibiotics as an effort to control the disease has been prohibited due to the impact of residual hazards, resistance and decreased food safety value. Therefore we need an alternative solution that is effective, efficient and applicable through the vaccines application. The aim of this research was to analyze the effectiveness of the Whole cell Edwardsiella ictaluri vaccine with different doses and different application methods to protect Siamese catfish (Pangasianodon hypophthalmus) from Edwardsiellosis disease. The research was conducted using a completely randomized design (CRD) method consisting of 3 methods, namely oral vaccine, immersion vaccine, and injection vaccine. Each method consisted of 4 different dose treatments with 3 replications. The results showed that the vaccine application using different methods resulted in different survival rates, relative survival rates, specific growth rates and mean time to death. The oral vaccine method using each different dose resulted in the best survival rate, relative survival percentage, and mean time to death. The immersion vaccine method with a dose of 10.9 resulted in the highest specific growth rate.
KAJIAN KEKUATAN MEKANIK KOMPOSIT CERDAS NANO FLY ASH SEBAGAI BAHAN PANEL MAGAZINE MESIN WINDING Setyawan, Agus; Irnawan, Dody
Jurnal Ilmiah Arsitektur Vol 13 No 2 (2023): Desember
Publisher : Jurusan Arsitektur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/jiars.v13i2.6053

Abstract

Pada industri tekstil proses pemintalan benang dapat terjadi bercampurnya dua jenis benang dalam satu gulungan (cone). Umumnya memakai mika acrylic, namun mudah pecah, impor dan harga relatif mahal, maka diganti menggunakan triplek, tetapi cepat rusak (tidak ekonomis). Pemanfaatan fly ash sangat terbatas, maka perlu kajian potensi produk baru komposit.Tujuan penelitian mengetahui kekuatan mekanik komposit cerdas nano fly ash-epoksi sebagai bahan panel magazine mesin winding (penggulung benang). Bahan penelitian fly ash mesh 120, di-oven 110 ºC selama 45 menit (kadar air) 4%. Pencampuran fly ash-epoksi diaduk 6 menit ditambah katalis 1% diaduk lagi 2 menit dituang dicetakan. Hasil penelitian sifat mekanik tertinggi pada fraksi berat 30:70, ketangguhan impak 2,75 KJ/cm² dan kekuatan bending 48,03 MPa. Pengamatan foto SEM patahan impak, menunjukkan ikatan yang baik antara filler dan matrik dibanding variasi lainnya, adanya rongga/pori-pori ukuran kecil relatif sedikit, penyebaran matrik dan filler berlangsung lebih merata, berdampak peluang terjadinya inisiasi patah lebih kecil sehingga nilai ketangguhan impak tinggi. Hasil pengujian ketangguhan impak komposit fly ash-epoksi fraksi berat 30:70 lebih tinggi, dibanding bahan mika akrilik dan bahan triplek, sehingga disimpulkan komposit fly ash-epoksi sangat berpotensi dipakai sebagai panel/sekat magazine mesin winding, pengganti material sebelumnya.
KARAKTERISTIK MEKANIK SERBUK KAYU JATI-HDPE LIMBAH SEBAGAI BAHAN KOMPOSIT PARTISI RUMAH RAMAH LINGKUNGAN Darojat, Muhammad Wahyu; Setyawan, Agus
Jurnal Ilmiah Arsitektur Vol 13 No 2 (2023): Desember
Publisher : Jurusan Arsitektur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/jiars.v13i2.6054

Abstract

Jenis limbah plastik terbesar adalah HDPE dengan kelebihan mudah dibentuk, mampu daur ulang dan baik sebagai matrik. Melimpahnya serbuk kayu jati limbah, belum maksimal penggunaanya. Penelitian komposit bahan limbah menjadi penting, untuk menggantikan material mahal lainnya. Tujuan penelitian mengetahui Karakteristik Mekanik Serbuk Kayu Jati-HDPE Limbah Sebagai Bahan Komposit Partisi Rumah Ramah Lingkungan. Metode penelitian eksperimen distruktif, dengan menyiapkan serbuk kayu jati mesh 40-60, HDPE mesh 60-80, dicampur 180 rpm selama 5 menit, dicetak hot press 30 bar, melting 120 °C dan sintering 10 menit. Sifat mekanik komposit uji bending ASTM D-6272, uji impak ASTM D-5941 dan SEM. Hasil penelitian variasi fraksi volume tertinggi 40:60, rata-rata uji impak sebesar 3,05 KJ/cm², uji bending 11,91 MPa dan uji tarik 10,05 MPa. Semakin meningkat prosen serbuk kayu jati limbah, maka kekuatan mekanik semakin tinggi, namun pada fraksi volume tertentu semakin rendah. Foto SEM patahan impak fraksi volume 40:60, menunjukkan ikatan filler-matrik lebih baik dibanding variasi lainnya, sedikit rongga kecil, penyebaran merata, berakibat awal patah lebih kecil, sehingga ketangguhan impaknya tinggi. Komposit fraksi volume 40:60 tersebut, diketahui ketangguhan impaknya lebih tinggi, dibanding bahan mika akrilik dan bahan triplek, sehingga berpotensi dijadikan bahan partisi komposit limbah ramah lingkungan.
Smart Fish Feeder Dengan Medeteksi Jumlah Getaran Permukaan Air Kolam Berdasarkan Tingkat Kelaparan Ikan Suseno, Jatmiko Endro; Setyawan, Agus; Aulia, Thessa Putri
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10342

Abstract

Suboptimal fish feeding management can affect the growth rate of fish. Fish   Feeding management consists of aspects of feed nutritional content, quantity, and feeding system. A system that still relies on humans or manual labor is very likely to cause human error in the process, so utilizing technology can be an option to improve the feeding system. This study aims to design and test the Smart Fish Feeder Design as an innovation in technology-based freshwater fish feeding. The fish Feeder works by providing fish feeding scheduling using the RTC DS3231 and detecting vibrations in pond water, which aims to determine the feeding process using the SW-420 Vibration Sensor. If a certain vibration is used as a parameter that the fish are still consuming feed, then the feeding process continues. The duration of the influence of sensor readings in adding feed lasts for one minute and can be adjusted according to pond conditions or the number of research subjects. The results show that the design can provide fish feed on a scheduled basis with high accuracy and can detect water vibrations as an indicator of feed consumption by fish.
Manajemen Pengurangan Resiko Bencana Berbasis Komunitas: Community Based Disaster Risk Reduction Management Nurcahyo, Mugi; Setyawan, Agus; Ansori, Teguh
Journal of Community Development and Disaster Management Vol. 4 No. 2 (2022): Journal of Community Development and Disaster Management
Publisher : Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/jcd.v4i2.2071

Abstract

The background of this study states that in a community environment even though the majority of the population is Muslim and as social beings, it cannot be used as a guarantee that the community has awareness of the values ​​contained in religion or awareness in participating in disaster management, and in participating in disaster management. Environmental welfare action. The environmental community in Krajan Hamlet, Baosan Lor Village, Ngrayun District spends a lot of time earning a living and working. The impact that occurs is that society is increasingly focused on worldly so that people are negligent with religious values ​​and as social beings. In this case, the awareness of religious leaders or community leaders in the environment in the Krajan Hamlet, Baosan Lor Village, Ngrayun District has an important role as a driving force and embracing in increasing religious awareness as well as making people aware of social actions for disaster management for environmental welfare. With the existence of communities and organizations that exist or are starting to form and move in this place, it is necessary to have management of the role of religious leaders, and driving figures in embracing the community. Because the purpose of the role of religious leaders and driving figures here is to be able to bully the community in building a peaceful, religious, and peaceful environment. Based on data analysis, this research uses a qualitative approach, namely research conducted by observing and analyzing it using scientific logic. With data collection techniques carried out by researchers including observation, documentation and in-depth interviews with informants who are considered to have a conferhensive understanding of information related to the research topic being carried out.
Pengaruh Ajaran Tarekat QAdiriyah wa Naqsyabandiyah Terhadap Perilaku Sosial Masyrakat Dukuh Pilang Desa Tulung Kecamatan Sampung: The Influence of the Teachings of the Qadiriyah wa Naqsyabandiyah Order on the Social Behavior of the Dukuh Pilang Community of Tulung Village, Sampung District Fathonah, Siti; Setyawan, Agus; Khafidhoh, Khafidhoh
Journal of Community Development and Disaster Management Vol. 5 No. 2 (2023): Journal of Community Development and Disaster Management
Publisher : Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/jcd.v5i2.3260

Abstract

Do Along with the development of the times, many deviant human behaviors, with increasingly sophisticated technology, humans are easily influenced by the outside world so that negative impacts easily penetrate human souls, positive activities are needed so that they can influence the socio-spiritual community. This thesis reports the results of the research, with the formulation of the problem: (1) what are the teachings of the Qadiriyah wa Naqsyabandiyah Order related to the socio-spiritual community (2) What is the influence of the teachings of the Qadiriyah wa Naqsyabandiyah Order on the socio-spiritual behavior of the Dukuh Pilang community, Tulung Village, Sampung District, with the procedure data collection through observation techniques, interviews and documentation. Based on the results of data analysis, it is concluded that there are a lot of positive influences from the teachings of the Qadiriyah wa Naqsyabandiyah Order that are felt by the congregation, making it feel more calm and peaceful in carrying out their daily lives, establishing friendship and making better relationships among fellow people, spiritual emotional life is more organized , making the congregation to always behave well towards family and society. Seiring dengan perkembangan zaman banyak perilaku manusia yang menyimpang, dengan adanya tekhnologi yang semakin canggih manusia mudah terpengaruh oleh dunia luar sehingga dampak Negatif mudah merasuki jiwa-jiwa manusia, di perlukannya kegiatan-kegiatan yang positif agar dapat mempengaruhi sosial spiritual masyarakat. Dalam Penelitian ini ada tiga pembahasan (1) Apa saja ajaran Tarekat Qadiriyah wa Naqsyabandiyah yang berkaitan dengan sosial spiritual masyrakat (2) Bagaimana pengaruh ajaran Tarekat Qadiriyah wa Naqsyabandiyah terhadap perilaku sosial spiritual masyrakat Dukuh Pilang Desa Tulung Kecamatan Sampung, dengan prosedur pengumpulan data melalui teknik observasi,wawancara dan dokumentasi. Berdasarkan hasil analisis data di peroleh simpulan bahwa banyak sekali pengaruh positif ajaran Tarekat Qadiriyah wa Naqsyabandiyah yang di rasakan jamaah, menjadikan lebih terasa tenang dan damai dalam menjalankan kehidupan sehari-harinya, menjalin silahturahmi dan menjadikan hubungan lebih baik antar sesama masyrakat kehidupan emosional spiritual semakin tertata, menjadikan jamaah untuk senantiasa berperilaku baik terhadap keluarga dan masyrakat.
Co-Authors A. Suhandi A.A. Ketut Agung Cahyawan W Achmad Samsudin Achmad Supriyadi, Achmad Adi Nugroho Agnis Triahadin Agnis Triahadini, Agnis Agung Prasetyo Agus Subagio Agus Susilo Agustina, Cynthia Ahwy Oktradiksa Akbar, Shofya Alfina, Ria Aliyatarrafiah Aliyatarrafiah Althafunnisa, Namyra Aisha Aman Damai, Abdullah Anik Fitrochaton Chasanah Ansori, Teguh Arif, Mas Achmad Syamsul Arlanda, Revilarita Asri Nurdiana, Asri Astuti, Andriani Mei Aulia, Thessa Putri Azis, Latif Saiful Azizah Azizah Azizi, Sandi Bambang Mujihardi Baroek, Marino Christiano Berta Putri Boko Nurdiyanto Brandan Tito Ramadhan Choirul Wahid, Imam Mustofa D Febrianty Dadan Dani Wardhana Damai, A Aman Darojat, Muhammad Wahyu Dave Emmanuel Haning Dewi Mariyaningsih Dhana Hastuti Dimas Sidiq Baskoro Dita Aprilina Djalal Er Riyanto Dody Irnawan Dwi Purwantoro Sasongko Dwi Puspitasari Dwiki, Elba Dwiyanto JS Dzuelqarnain, Muhammad Essa eko efendi Elisdiana, Yeni Endriasmoro M Siagaan Esti Harpeni F M Arif Faizal Ahmad Fajar Waskito Fajrin, Fajrin fidhoh, kha Fidyandini, Hilma Putri Firdausi, Hilma Nahwa Firmansyah, M. Rizal Fithria I D, Ni'matul Fitra Ramdhani Fitra Ramdhani Florentina Yuni Arini, Florentina Yuni Frysca Putti Muviana Fuad Tarmidzi Galang Virgiawan Ganap Y. Febrika Ganap Yuliana Febrika Ghufron Abdullah Gulton, Arlewes Gunawan, Riyan Habib, Farid Alif Hadi, Muhammad Rafli Irsyad Harri Yudianto Hauzan, Noor Azmi Fachri Hauzan, Noor Azmi Fachri Hay's, Riyan Naufal Herbianto, Sheren Aurellya Heri Sugito Hidayat, Muhammad Adil Hidayati, Ina Hilmi, Haidar Hirafiany Daruartati I Gusti Ngurah Antaryama I Nyoman Sujana Ibnu Rasid Ida Hayu Dwimawanti Ilham Nurdien Imam B. Raharjo Imam Baru Raharjo Imam Baru Raharjo Indah Asmoro Wulan Indra Gumay Febryano Irawan, Ady Isa Akhlis Isnain Gunadi Istikomah Istikomah Istiqomah Ari Kusuma Ita purnamasari, Ita Itasari, Andri Astuti Jatmiko Endro Suseno Juliasih, Ni Luh Gede Ratna Kanthi Pamungkas Sari Kasanah, Nur Khafidhoh Khafidhoh, Khafidhoh Khairunissa, Hatifa Khasana, Devi Ardiyati Kholidin, Edy Barkat Kusno Adi Sambowo Kusumaningrum, Rahma Puspita Lahay, Almira Fardani Lendriadi A. Lestari, Kiki Indah Lestari, Sepnina Like Limin Santoso Linirin Widyastuti, Endang Listia, Octa Lutfiani, Ulfah M Wildan Firdaus Maharani, Ni Putu Diva Mahestri, Laras Mahmud Yusuf Malau, Victor Pandpotan Maya Riantini, Maya Maya Sekar Wangi Moch. Abdul Mukid Mohammed I. D. Matar, Mohammed Mualimin Mualimin Mualimin Mualimin Muchammad A Rofik Muchlis, Ibnu Mufita, Halimah Muhammad Irham Nurwidiyanto Muhammad Kholiqul Amiin, Muhammad Kholiqul Muhammad Mualimin Muhammad Nur Muhammad Nur Handoyo Munti Sarida Murtiningtias Diah Ayu Martha Dewi Mustafid Mustafid Mutiatussholikah, Dita Muyasaroh, Evi Nafiisah, Nafiisah Naufal, Adnan Faris Ningsih, Setia Nisa Az Zuhdy, Afifah Nona Dili Maricci Noor Alis Setiyadi Noor, Huriyatul Fitriyah Noviana Fransiska Nuning Nurcahyani Nur Hakim, Alvio Nur Rachmaningtias Nurcahyo, Mugi Nurhadiyastuti, Ameilia Nurhalisa, Alifia Adibila Nuriyana Muthia Sani Nursamsiah Nursamsiah Nurul Khasanah, Nurul Nur`Ani Okta Trilia Octaviani Sarmauli Oki Hedriana Oky Irawan Sugiri Ophi Thio Rendy Parabi, Achmad Reza Parbuntian Sinaga Pitojo Budiono Prabowo, Muhammad Nur Priyo, Priyo Putra, Hisbicus Dwi Surya Putri, Wanda Andella Qadar Hasani R. M. Tofan Sastranegara Rahayu, Wiji Rahaz, Muhammad Faiz Thoyib Rahmasari, Ikrima Rahmat Gernowo Ramadhan, Irvan Rara Diantari Rasyid, Moh Andi Ratih Rundri Utami Ratna Dewi Winesthi Ratna Juliasih, Ni Luh Gede Redemtus Heru Tjahjana Ribangun Bamban Jakaria Rina Dwi Indriana Rina Hesti Utami Ririn Sulpiani Rivaie, Arief Rahman Sakti, Doni Bilga Komara Saputra, Rizqy Hadi Saputra, Suryadi Sari, Azzahra Indah Satriyo Adhy Sela Ade Otaviana Setiawan, Aqshal Dwi Silvia Yulita Ratih Simamora, Ginda Siti Fathonah Siti Hudaidah Siti Rohimah Sitompul, Hotlan Albert Adventus Slamet Mulyono Subandoro, Agus Sudarno Sudarno Sugeng Widada Sugiharto, Sh Sumino, Sumino Supono Supono Supriyadi - Supriyadi - Susanti, Oktora Susanti, Susanto, Gregorius Nugroho Sutrisno, Ade TATI NURHAYATI Teguh Satya Bhakti Teguh Suroso Tiara Qonita, Azhra Tiara Qonita Titik Haryati Tugiyono Tugiyono Udi Harmoko Wahyono, Catur Wahyu Eko Sulistiono Wardiyanto - Widiarso Dian Agus Widiastuti, Endang Linirin Winaldi, Iman Wisnu Agung Permadi Wiyatanto, M Toto Yasluh, Muhammad Sholukha Yatti Pratyas Katrinavia Yatti Pratyas Katrinavia Yayan Yuliananto Yayan Yuliananto Yeni Indriyani Yoga Aribowo Yudha T Adiputra Yudha Trinoegraha Adiputra Yundari, Yundari Yuniarti, Siti Yusup, Maulid Wahid Zaenul Muhlisin Zainal Abidin Zaini, Syakila Zulfikar Zafeskan Ronapati