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All Journal e-Journal BUDIDAYA PERAIRAN Jurnal Ilmu dan Teknologi Perikanan Tangkap
Lusia Manu
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Physics Other

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Pengaruh umur bulan terhadap hasil tangkapan dengan jaring insang hanyut (Soma Landra) (Effect of moon phase on catches of drift gill net (Soma Landra)) Ditsen Pangauan; Lefrand Manoppo; Mariana Elizabeth Kayadoe; Lusia Manu
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 5 No. 1 (2020): Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.5.1.2020.27449

Abstract

Soma landra is classified as drift gillnet which rectangular shaped and it equipped with  floats, head rope, buoy rope, towing rope and sign buoy. In operation, it is installed in a position to cut the current direction with the intention of blocking the fish motion. The influence of moon phase is one of the factors that is closely related to fish behavior, where one of them is interested in light. Besides the brightness of the moonlight can be affected to the efficiency of capture. Therefore, the aims of this study were determined the effect of moon phase on catches and determined the catches at each moon phase. Randomized Block Design (RBD) was used in this study. The analyzed indicated that difference or reject Ho, means there are differences in catches in each moon phase. The species of fish caught is flying fish in the local language known as Marluga (Cypsilirusolegoleptis) as a target fishes with a total catch of 364.On the full moon as many as 106 (29.12%), the final perennial of 57 (15.66%), the dark moon of 79 (21.70%) and the initial peraniage of 122 fishes (33.52%).
Penggunaan limbah ikan tuna dan limbah tahu dalam formulasi pakan bagi pertumbuhan, efisiensi pakan, dan kelangsungan hidup ikan Nila salin (Oreochromis niloticus) Ursula Pinontoan; Henneke Pangkey; Ockstan J. Kalesaran; Edwin L.A. Ngangi; Lusia Manu; Jeffrie F. Mokolensang
e-Journal BUDIDAYA PERAIRAN Vol. 11 No. 2 (2023): April - Desember
Publisher : Universitas Sam Ratulangi

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Abstract

This study aims to determine the adequacy of feed because of fish waste and tofu leftover flour for the development of saline tilapia, feed efficiency, feed conversion ratio, and survival rate. This examination was directed at the Laboratorium Technology Aquaculture. The quantity of fish taken was 300 tilapia fish with a size of 5–6 cm and a typical load of 5 grams. The test feed to be utilized in this review was formed from different fundamental fixings utilized, then, at that point, added with fish waste and tofu squander. In light of the consequences of the examination of the impact of various feed equations, specifically fish waste and tofu leftovers, they significantly affect the growth of saline tilapia. Different feed recipes influence the development of saline tilapia. From the consequences of exploration on saline tilapia, freshwater fish can inhabit a saltiness of 20 ppt in a controlled holder in one month or less. Of all the development boundaries estimated in this review, feed 3 was the best contrasted with different feeds. The aftereffects of the investigation of the change showed that the feed detailing was unique to that of fish waste and tofu residue, and the impact was exceptionally huge. Keywords: tilapia, growing, feed efficiency, feed conversion, survival
Co-Authors Ditsen Pangauan Edwin L.A. Ngangi Henneke Pangkey Jeffrie F. Mokolensang Lefrand Manoppo Mariana Elizabeth Kayadoe Ockstan J. Kalesaran Ursula Pinontoan