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All Journal Jurnal Akuakultur Sungai dan Danau Seminar Nasional Ilmu Terapan
Megawati Wijaya, Megawati
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Other

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RUANG TERBUKA & WISATA AIR : SEBUAH USULAN DESAIN KAWASAN KORIDOR KALIMAS RUAS JEMBATAN BAT-RUAS JEMBATAN WONOKROMO - SURABAYA Wijaya, Megawati; Suprobo, F. Priyo; Mutfianti, Ririn Dina
Seminar Nasional Ilmu Terapan Vol 1 No 1 (2017): Seminar Nasional Ilmu Terapan (SNITER) 2017
Publisher : Universitas Widya Kartika Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.915 KB)

Abstract

Sungai Kalimas merupakan sungai bersejarah untuk Kota Surabaya, dimana sungai ini menjadi pusat perekonomian masyarakat di jaman Kerajaan Majapahit. Selain itu, air sungai yang jernih menjadi keuntungan sendiri untuk area permukiman di sekitarnya. Seiring waktu, arus urbanisasi yang semakin meningkat, menyebabkan sepanjang Sungai Kalimas menjadi area yang padat penduduk dan minimnya ruang terbuka. Air sungai yang keruh adalah salah satu dampak dari permukiman yang ada serta hal ini membuat menurunnya daya tarik masyarakat terhadap Sungai Kalimas. Penelitian ini merupakan bagian dari proyek desain yang dikembangkan oleh Pusat Desain Industri dan Lingkungan Buatan UWIKA (Pusdewika) yang akan memfokuskan Kalimas untuk dapat menjadi daya tarik masyarakat lokal maupun mancanegara dan sebagai ciri khas kawasan di Kota Surabaya dengan berdasarkan prinsip pengembangan kawasan tepian air. Dengan demikian, tujuan penelitian desainnya adalah menambahkan ruang terbuka dan memetakan wilayah sesuai kebutuhan, serta menambahkan beberapa fasilitas penunjang untuk masyarakat sekitarnya. Sasaran proyek dilakukan di Bantaran permukiman Darmorejo. Untuk mengembangkan segmen yang terpilih menggunakan metode kualitatif, berupa analisis SWOT dan FGD (Focus Group Discussion).
Teknik Pemijahan Ikan Nila Nirwana (Oreochromis niloticus) Pada Sistem Konvensional dan Sistem Happa di Ernawati Farm Galunggung Tasikmalaya Wijaya, Megawati; Nurjanah, Lilis
Jurnal Akuakultur Sungai dan Danau Vol 10, No 2 (2025): Oktober
Publisher : Universitas Batangahari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/akuakultur.v10i2.286

Abstract

The success of Nile tilapia (Oreochromis niloticus) cultivated is influenced by many factors, such as broodstock and fry quality, water quality, pond and feed management, and also the control of pests and diseases. The selection of appropriate spawning containers is critical, as it affects broodstock adaptation, comfort, behavior, and overall spawning success. This study aims to compare spawning performance of Nile tilapia in conventional earthen ponds and with hapa systems. A qualitative descriptive methodology was employed, with data collected at Ernawati Farm Galunggung (EFG), Tasikmalaya. Results demonstrated that larval productivity in the conventional earthen pond system was more stable than in the hapa system. Specifically, larval output over 10 spawning cycles with three replicates ranged from 30,000 to 94,000 individuals in the conventional system, compared to 10,000 to 110,000 individuals in the hapa system. The greater swimming space available in the conventional system likely facilitated nest building prior to spawning, contributing to increased productivity stability. In contrast, the restricted movement in the hapa system appeared to induce stress among broodstock, resulting in less consistent larval output. Larval survival rates were 100% in both systems, with larvae harvested at three days post-hatching.
Produksi Ikan Nila (Oreochromis niloticus) Strain Politeknik Negeri Lampung (PoliNILA) dengan Metode Selective Cross Breeding Faturrohman, Kurnia; Subhan, Rio Yusufi; Fatimah, Nurul; Wijaya, Megawati
Jurnal Akuakultur Sungai dan Danau Vol 11, No 1 (2026): April
Publisher : Universitas Batangahari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/akuakultur.v11i1.309

Abstract

Tilapia cultivation in Lampung Province still faces many challenges, including the limited availability of tilapia seeds. This is due to the low availability of tilapia broodstock with superior specifications. This poses a challenge for the Lampung State Polytechnic to produce new strains of tilapia broodstock with distinctive advantages, thereby boosting seed production and consumption of tilapia in Lampung Province. One effort that can be made to create new strains of superior tilapia is by using selective cross-breeding between two superior tilapia species, namely the Srikandi tilapia and the Larasati tilapia. Both types of tilapia have their own unique superior characteristics, so it is hoped that this will be able to create new strains of tilapia that combine the advantages of both. The two superior Nile tilapia broodstock will be cross-bred with the composition in Treatment A, namely male Nile tilapia broodstock Srikandi with female Nile tilapia broodstock Larasati and Treatment B, namely female Nile tilapia broodstock Srikandi with male Nile tilapia broodstock Larasati with each treatment having two replications. This research will be conducted for 90 days of maintenance which includes the process of adaptation of broodstock to the environment, the spawning process and the process of maintaining larvae and seeds. The parameters tested include the number of eggs produced (fecundity), egg hatching rate, survival rate of larvae and fish seeds (survival rate), daily growth rate of fish seeds (specific growth rate) and the feed conversion ratio in fish seeds (food conversion ratio).
Co-Authors F. Priyo Suprobo Kurnia Faturrohman Lilis Nurjanah Nurul Fatimah Rio Yusufi Subhan Ririn Dina Mutfianti