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EFFECT OF DIFFERENT STOCKING DENSITY TO GROWTH RATE OF CATFISH (Clarias gariepinus, Burch) CULTURED IN BIOFLOC AND NITROBACTER MEDIA Puspita, Elfa Verda; Sari, Ratih Purnama
AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.507 KB) | DOI: 10.23960/aqs.v6i2.p583-588

Abstract

Catfish is one of the freshwater commodities whose demand continues to increase in Indonesia. Intensive cultivation is done to meet market demand. Intensive cultivation is done by optimizing stocking density. The aim of this research was to know the effect of different density on feed productivity, growth, feed conversion ratio (FCR) and survival of catfish dumbo fry (Clarias gariepinus, Burch) in biofloc and nitrobacter media. This study used a completely randomized design (RAL) with 6 treatments and 3 replications. The test animalsused catfish dumbo (Clarias gariepinus, Burch) with an average weight of 0,6 ± 0,1g and an average length of 4 cm. Catfish dombo seeds are kept in tarpaulin ponds 2 m in diameter with water volume ± 1 m3 for 45 days and feeding 3% of biomass weight. The results showed that the different density of stockingin biofloc and nitrobacter media had increase on productivity, specific growth rate, feed efficiency and no significant effect on the survival of catfish dumbo fry.
KAJIAN ASPEK TEKNIS PERIKANAN GILLNET BERBASIS EAFM (ECOSYSTEM APPROACH TO FISHERIES MANAGEMENT) DI PERAIRAN DUMAI Sari, Ratih Purnama; Shalichaty, Shiffa Febyarandika
JURNAL PERIKANAN TROPIS Vol 7, No 1 (2020)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v7i1.1858

Abstract

The local government law regulated the management of 0 – 12 miles waters carried out by the province so that fishermen can operate their fishing gear without differentiating districts. Catch fishing was not limited to one kind of fishing gear and it caused the increasing of fishing capacity. The limited area of fishing with the distance of 2 miles from coast can caused fisheries utilization resources was not balanced. Therefore this study needed to be conducted to assess the status of development of gillnet fishing activities in Dumai waters. Data was collected by conducting interviews in the form of: fishing units, selectivity, sustainability of function and size of fishing vessel with legal documents, and modification of fishing gear. The data results based on 5 fishing technical aspects explained that the fishing utilization of gillnet still could be developed. However, the data of fishing vessel documents have to be well recorded according to the reality so that government could develop the responsible fishing activities.
EVALUASI TEKNIK PENGOPERASIAN PURSE SEINE PADA KM. SUMBER REZEKI Mardiah, Ratu Sari; Hutapea, Roma Yuli Felina; Kelana, Perdana Putra; Ikhsan, Suci Asrina; Sari, Ratih Purnama; Haris, Rangga Bayu Kusuma; Tiku, Mathius
Jurnal Penelitian Perikanan Laut (Albacore) Vol 8 No 1 (2024): Albacore
Publisher : Departemen PSP IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/core.8.1.099-108

Abstract

Tujuan penelitian ini untuk mengevaluasi teknik pengoperasian purse seine pada KM. Sumber Rezeki berdasarkan Permen KP No 18 Tahun 2021. Penelitian ini dilaksanakan menggunakan KM. Sumber Rezeki milik PT. HLS tahun 2022. Data dikumpulkan dengan metode observasi dan wawancara. Hasil nya adalah purse seine yang digunakan KM. Sumber Rezeki adalah jenis purse seine pelagis kecil dengan nama daerah pukat langgar. Konstruksinya terdiri atas tali ris atas 450 m, tali ris bawah 450 m, tali pelampung 450 m, tali pemberat 450 m, srampat 450 m, tali cincin 450 m, pelampung 1500 buah, pemberat 700 buah, cincin 105 buah. Alat bantu pengoperasian purse seine adalah rumpon menetap dan lampu. Kapal yang digunakan adalah kapal motor dengan ukuran 168 GT. Penangkapan ikan dilakukan pada jalur III dan WPP 711. Berdasarkan evaluasi teknik pengoperasian purse seine, tujuh aspek telah dinyatakan sesuai yaitu mesh size dan panjang tali ris sesuai, ukuran kapal dan jalur penangkapan telah sesuai. Satu aspek yang belum sesuai yaitu pengoperasian pukat langar tidak dilengkapi dengan radar reflektor sebagai alat bantu penangkapan. Kata kunci: evaluasi, pengoperasian, purse seine, teknis
MANAJEMEN OPERASIONAL PENANGKAPAN IKAN DENGAN PURSE SEINE DI PPS NIZAM ZACHMAN (STUDI KASUS PADA KAPAL KM. MEKAR KENCANA 03) Sari, Ratih Purnama; Toratno; Krisnafi, Yaser; Istrianto, Kadi; Prasetyono, Untung
Jurnal Penelitian Perikanan Laut (Albacore) Vol 8 No 3 (2024): Albacore
Publisher : Departemen PSP IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/core.8.3.313-318

Abstract

Setiap operasi penangkapan ikan tidak terlepas dari proses manajemen yang dilakukan secara bertahap mulai dari perencanaan (planning), pengorganisasian (organizing), pelaksanaan (actuating) dan pengendalian (controlling) agar ketercapaian penangkapan ikan dapat dipenuhi. Purse seine merupakan alat tangkap yang menghasilkan produksi perikanan yang paling tinggi di PPS Nizam Zachman Jakarta. Kajian mengenai proses manajemen operasi penangkapan masih terbatas sehingga perlu dilakukan kajian mengenai manajemen operasional penangkapan pada KM. Mekar Kencana 03 di PPS Nizam Zachman Jakarta. Pengumpulan data dilakukan dengan observasi kegiatan penangkapan ikan di KM. Mekar Kencana 03 dan wawancara. Analisis data yang digunakan adalah analisis deskriptif kualitatif. Persiapan keberangkatan dilakukan 30 menit sebelum keberangkatan. Jumlah anak buah kapal saat melakukan penangkapan di laut minimal sebanyak 32 orang termasuk nakhoda. Perbekalan disiapkan sesuai dengan jumlah awak kapal. Kondisi kapal harus dipantau seperti mesin induk dan mesin gardan. Dokumen perizinan kapal harus disiapkan, pengecekan alat tangkap dan pengecekan alat navigasi kapal juga dilakukan. Pengawasan operasi penangkapan dilakukan langsung oleh pemilik kapal yang berperan sebagai nakhoda kapal. Kata kunci: manajemen, operasional, purse seine, PPS Nizam Zachman
POTRET PERIKANAN TANGKAP KOTA DUMAI SEJAK 2017 HINGGA 2021 Ikhsan, Suci Asrina; Mardiah, Ratu Sari; Hutapea, Roma Yuli F.; Sari, Ratih Purnama; Haris, Rangga Bayu Kusuma; Tiku, Mathius
Jurnal Teknologi Perikanan dan Kelautan Vol 14 No 1 (2023): MEI 2023
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2891.36 KB) | DOI: 10.24319/jtpk.14.65-71

Abstract

Tujuan penelitian ini adalah untuk menggambarkan kondisi produksi perikanan tangkap di Kota Dumai sejak 2017 hingga 2021, dan menganalisa karakteristik unit penangkapan ikan di kota tersebut. Penelitian menggunakan data sekunder tahunan (2017-2021) berupa jumlah nelayan, jumlah kapal, jumlah alat tangkap, produksi perikanan tangkap, dan nilai produksi perikanan tangkap diperoleh dari Badan Pusat Statistik Kota Dumai. Untuk memperoleh kajian yang lebih komprehensif, data primer diperoleh dengan cara wawancara dan observasi. Analisis data yang digunakan adalah metode analisis isi (content analysis). Hasil penelitian menunjukkan bahwa data produksi perikanan mengalami fluktuasi. Pada tahun 2017 data produksi sebesar 930.815 kg dan menurun signifikan pada tahun 2018 (564.766 kg), kemudian mengalami kenaikan setiap tahun secara perlahan. Kegiatan penangkapan ikan di Kota Dumai tersebar pada 5 kecamatan dari 7 kecamatan, yaitu Medang Kampai, Sungai Sembilan, Dumai Barat, Dumai Timur, dan Dumai Kota. Karakteristik perikanan tangkap Kota Dumai adalah Perikanan Tangkap Skala Kecil atau tradisional. Nelayan di Kota Dumai didominasi oleh nelayan utama. Kapal yang digunakan terdiri atas beberapa jenis, yaitu kapal motor (KM) ukuran 5-30 GT, motor tempel (MT) ukuran 5 GT, perahu tanpa motor (PTM), dan nelayan tanpa perahu (NTP). Alat tangkap yang digunakan terdiri atas alat tangkap aktif, pasif, dan statis.
Analysis of Fish Catch Diversity Index on Purse Seine Vessels in Indonesia Fisheries Management Area 718 (IFMA-718) Fadli Alfarisi R; Perangin-angin, Robet; Sari, Ratih Purnama; Sugiono; Nurlaela, Eli
Coastal and Marine Journal Vol. 2 No. 1 (2024)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v2i1.47

Abstract

Indonesia Fisheries Management Area 718 (IFMA-718), located in the Arafura Sea, is known for its high marine biodiversity and serves as a strategic fishing ground. However, the lack of fishing gear selectivity in this area poses a significant threat to the sustainability of marine resources. This study aims to evaluate the selectivity of purse seine fishing gear through biodiversity analysis using the Shannon-Wiener diversity index (H’), evenness index (E), and dominance index (C). Data collection was conducted from September 2023 to March 2024 in the Arafura Sea using a 149 GT purse seiner. Catch data were categorized into target species, bycatch, and discards. The results showed that the values of H’ ranged from 0.77 to 1.40, E values were mostly greater than 1, and C values were below 0.5. These findings indicate a high species diversity and evenness, alongside low dominance, suggesting a relatively balanced community structure. However, such diversity also reflects the low selectivity of the fishing gear, which captures both target and non-target species, including demersal and benthic organisms. In conclusion, the purse seine gear used in IFMA-718 is considered to have low selectivity and is potentially harmful to non-target marine ecosystems. This study provides essential insights for improving selective fishing practices and implementing sustainable fisheries management in the region.
DISEMINASI KESELAMATAN JIWA KAPAL NELAYAN PESISIR KABUPATEN KARAWANG JAWA BARAT Saputra, Rahmad Surya Hadi; Perangin-Angin, Robet; Haris, Dendi; Sutono, Dian; Prasetyono, Untung; Istrianto, Kadi; Surharyanto; Sari, Ratih Purnama; Akbar, Raden Mohamad Adha
Jurnal Abdi Insani Vol 11 No 3 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i3.1673

Abstract

The escalating need for animal protein has stimulated the growth of the capture fisheries industry. However, undue carelessness concerning the maintenance and operation of fishing vessels often results in scenarios that pose serious risks, even leading to fatal accidents. In Karawang District, the high spirit of fishermen in setting sail plays a major role in boosting the productivity in the capture fisheries sector. Yet, the awareness of the importance of using personal safety equipment while at sea remains disappointingly low. The Fish Capture Study Program of the Politeknik Kelautan dan Perikanan Karawang set out to organize a training sessions aimed for enhancing the fishermen’s awareness of safety during their voyages. These sessions are a manifestation of the social responsibility in empowering the community and promoting sustainable development. Through presentations, and direct demonstrations, fishermen are instructed on various aspects of safety during their voyage. The training includes techniques for self-preservation at sea, use of the red hand flare, activation of parachute signals, and smoke signals during emergencies, as well as the use of life buoys and life jackets to enhance safety at sea. This community service activity was attended by 20 fishermen residing on the coast of Karawang District. The initiative attempts to strike a balance between the urgency to meet the growing demands for animal protein, and the obligation to promote safe and sustainable practices in the capture fisheries sector.
Peningkatan Kemampuan Numerasi Materi Sistem Persamaan Linier dengan Penerapan Problem Based Learning Berbantuan Media ICT Meryansumayeka, Meryansumayeka; Aisyah, Nyimas; Pratiwi, Weni Dwi; Kurniadi, Elika; Sari, Ratih Purnama; Azma, Tiara Rondiana; Khairida, Khairida
SJME (Supremum Journal of Mathematics Education) Vol 9 No 1 (2025): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v9i1.92

Abstract

Penelitian ini bertujuan meningkatkan pemahaman dan keterampilan numerasi siswa melalui penerapan model pembelajaran berbasis masalah dengan bantuan media ICT. Metode yang digunakan dalam penelitian ini adalah Penelitian Tindakan Kelas (PTK), yang akan dilaksanakan dalam dua siklus. Setiap siklus terdiri dari empat tahap, yaitu perencanaan, tindakan, observasi, dan refleksi. Materi yang diajarkan meliputi sistem persamaan linier, dengan fokus pada pengembangan kemampuan siswa dalam memodelkan masalah nyata ke dalam persamaan matematis dan menyelesaikan sistem persamaan tersebut. Penelitian ini melibatkan 36 siswa kelas X dari SMA Negeri Srijaya Negara Palembang. Pengumpulan data dilakukan melalui observasi, tes, wawancara, dan dokumentasi, yang kemudian dianalisis secara kuantitatif dan kualitatif. Hasil siklus I menunjukkan bahwa metode Problem-Based Learning (PBL) meningkatkan keterlibatan sebagian siswa dalam pembelajaran dengan metode grafik meskipun terdapat kendala pada pengelolaan waktu. Hasil dari siklus II menunjukkan peningkatan pemahaman siswa terhadap materi SPLDV dan sistem pertidaksamaan linier dua variabel berdasarkan kenaikan skor rata-rata tes dibandingkan dengan siklus I. Kesimpulan dari penelitian ini adalah metode Problem-Based Learning (PBL) secara efektif meningkatkan keterlibatan siswa, pemahaman konsep, dan kemampuan pemecahan masalah pada materi Sistem Persamaan Linier Dua Variabel (SPLDV) dan sistem pertidaksamaan linier dua variabel dengan pengintegrasian GeoGebra dalam memperkuat kemampuan numerasi siswa.
STUDY ON CATH HANDLING IN PURSE SEINE FISHERIES KM. BINTANG MAS AT PEKALONGAN FISHING PORT Sari, Ratih Purnama; Larasati, Rakhma Fitria; Ikhsan, Suci Asrina; Akbar, R. Mohamad Adha; Habib, E.Y., M.
Jurnal Segara Vol 20, No 2 (2025): December
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v20i2.17613

Abstract

Pekalongan National Fishing Port (PPN Pekalongan), a type B fishing port, is recognized for its well-managed facilities and serves as an operational base for purse seine vessels. Purse seines are widely employed to harvest schooling pelagic fish, most of which are species of high economic value, thus requiring appropriate handling to maintain quality. This study aims to examine the handling practices of purse seine catches on board KM. Bintang Mas Maritim, focusing on storage temperature, handling equipment, and storage duration under freezer-based systems. Data collected included fish temperature at hauling, during freezing, and after storage, as well as the handling methods and equipment used by fishermen. The initial body temperature of the fish was 29.3°C at hauling. Fish were sorted by species, size, and quality, then washed and frozen at -18°C for 24 hours. Once frozen, they were packaged and transferred to the fish hold at -13.7°C for storage. The findings highlight the importance of systematic handling, washing, rapid freezing, and controlled storage—to maintain fish quality and extend shelf life.