Fanny Silooy
Program Studi Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Sam Ratulangi, Manado 95115

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Studi tentang tinggi penempatan lampu terhadap jumlah hasil tangkapan ikan pelagis di rumpon di Perairan Likupang (Study of the placement level of lights on the number of pelagic catches at FADs in Likupang Waters) Elvis Dimes; Fanny Silooy; Patrice N. I. Kalangi
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 3 No. 2 (2018): Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.3.2.2018.21426

Abstract

Fishing aids commonly used in fishing operations in Indonesia include FADs and light attractors. The use of lighting fishing is generally intended to attract fish to gather around light sources. The success of the light source to attract and collect fish around the lamp depends on the state of the lamp and environmental conditions. In this study treatment was is the height of the lamp from the water surface, namely 80 cm, 120 cm, and 180 cm. 120 cm high is the height commonly used by fishermen. The lights are made in two series, each consisting of four lights with a total of 200 watts. The purpose is to find out the catch of fishing rods around the FADs with high treatment of lights that are dissected. Based on the graph, the treatment given has a different tendency in catches number. The types of fish caught by hand line in FADs around 5 types of fish in the order of the most catches are mackerel (Selaroides leptolepis), and followed by flying fish (Decapterus ruselli), tuna fish (Auxis thazard), dolphin fish (Coryphaena hippurus), and squid (Loligo sp).The lamps placed at the level of 180 cm gives more catches, followed by the lamps at thelevel of 80 cm which is not much different from an level of 120 cm. cm and type of flying fish was caught more at the height of the lamp at 180 cm from the surface.Keywords: LED lights, FADs, pelagic fish, Likupang waters AbstrakAlat bantu penangkapan yang umum digunakan dalam operasi penangkapan ikan di Indonesia antara lain adalah rumpon dengan attractor cahaya. Penggunaan alat bantu cahaya pada penangkapan ikan umumnya dimaksudkan untuk menarik ikan agar berkumpul di sekitar sumber cahaya. Berhasil tidaknya sumber cahaya lampu untuk menarik dan mengumpulkan ikan-ikan di sekitar lampu tergantung keadaan lampu dan kondisi lingkungan. Perlakuan pada penelitian ini adalah tinggi lampu dari permukaan air, yakni 80 cm, 120 cm, dan 180 cm. Tinggi 120 cm merupakan tinggi yang biasa digunakan oleh nelayan. Lampu dibuat dalam dua rangkaian yang masing-masing terdiri atas empat lampu dengan intensitas total 200 watt. Tujuan untuk mengetahui hasil tangkapan pancing ulur di sekitar rakit dengan perlakuan tinggi lampu yang berbedah. Berdasarkan grafik, perlakuan yang diberikan memiliki kecenderungan berbeda. Jenis-jenis ikan yang tertangkap dengan pancing ulur di rumpon adalah 5 jenis ikan dengan urutan hasil tangkapan terbanyak adalah selar (Selaroides leptolepis), dan diikuti oleh ikan layang (Decapterus ruselli), tongkol (Auxis thazard), lemadang (Coryphaena hippurus), dan cumi-cumi (Loligo sp). lampu yang ditempatkan pada ketinggian 180 cm memberikan hasil tangkapan yang lebih banyak, diikuti lampu pada ketinggian 80 cm yang tidak jauh berbeda dengan ketinggian 120 cm. Jenis ikan selar diperoleh paling banyak pada ketinggian 120 cm dan jenis ikan layang lebih banyak tertangkap pada ketinggian lampu 180 cm dari permukaan.Kata kunci: lampu LED, rumpon, ikan pelagis, perairan Likupang
Rekonstruksi bentuk lambung kapal dalam format tiga dimensi (3D) dengan teknik fotogrametri Evander Nelwan; Kawilarang W. A. Masengi; Vivanda O. J. Modaso; Alfred Luasunaung; Johnny Budiman; Fanny Silooy; Revols D. CH. Pamikiran
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 9 No. 1 (2024): Januari-Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.9.1.2024.45751

Abstract

Fishing boat has unique characteristics, such as seaworthiness, maneuvering, boat’s velocity, displacement, fishing gear layout, and catch storage facilities. With increasing development of photographic technology, photography is not merely an art but it has become a field of mathematics, making it a technique that can be integrated with software technology designed to produce digital data objects in the form of 3D images called Photogrammetric technique. This study is to obtain the reconstruction of the boat's hull based on the Photogrammetric software, to determine the effect of photography to obtain a 3D image, and to know the weakness and strength of 3D reconstruction of the boat’s hull. The images in this study were obtained using a POCO F3 smartphone camera integrated with the PIX4Dcatch application and analyzed with Agisoft Metashape Professional (Trial Version). From this research, we concluded that 1) the reconstruction of the boat hull can be obtained by using Photogrammetric techniques in the PIX4Dcatch application followed by the Agisoft Metashape Professional (Trial Ver.) software analysis; 2). With photographic equipment and several data processing software, the boat’s shape could be produced in 3D images, and 3). There are several advantages in reconstructing the ship's hull with the Photogrammetric technique, namely producing the ship's reconstruction of 3D images, obtaining the principal dimensions of the boat, such as the area and volume of the boat, that could be as the basic data for boat resistance and ship stability calculation, and the work could be done by one person only.
Kajian tentang jenis umpan buatan pancing tonda terhadap hasil tangkapan Billy Jehosua; Ivor L. Labaro; Lefrand Manoppo; Alfred Luasunaung; Johnny Budiman; Fanny Silooy
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 9 No. 1 (2024): Januari-Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.9.1.2024.51878

Abstract

The aim of this research is to determine the differences between two types of artificial bait on troll line on catches and to identify the composition of catch types based on bait type. This research was carried out in Tanawangko waters and was carried out from February to March 2023 using the experimental fishing method, where two pancing tonda  each using silk fiber and chicken feather bait were operated simultaneously in one boat for 5 trips which were then analyzed using the t test. The catch during the research was 24 individuals with 3 species, namely with silk fiber bait, 20 individuals were caught consisting of 3 species and using chicken feather bait, 4 individuals were caught consisting of 2 species. The analysis results show that tcount = 1.684 < t table = 2.776; so it accepts H0 and rejects H1. This explains that the use of chicken feather bait is not significantly different from silk fiber as trolling bait for catch results. The conclusion of this research is that using silk fiber bait resulted in more catches than chicken feather bait, but the results of the t test analysis showed that the two were not significantly different and the three species of fish caught were 15 skipjack tuna (Katsuonus pelamis), 7 baby tuna (Thunnus sp.), and 2 lemadang (Coryphaena hippurus).