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All Journal Jurnal Ilmu dan Teknologi Perikanan Tangkap
Alfred Luasunaung
Program Studi Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Sam Ratulangi, Manado 95115
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Physics Other

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Fluktuasi Musiman Cakalang (Katsuwonus pelamis): Studi Kasus Pelabuhan Perikanan Samudera Bitung (Seasonal Fluctuation of Skipjack (Katsuwonus pelamis): Case Study of Bitung Oceanic Fishing Port) Ismanto A.R. Taib; Lusia Manu; Alfred Luasunaung
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 3 No. 1 (2018): Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.3.1.2018.18853

Abstract

In this study we determined the seasonal catch fluctuations of skipjack (Katsuwonus pelamis) which landed at the Bitung Oceanic Fishing Port using descriptive method through case study approach. Data were analysed using analyzes period methods. The results indicated that the high seasonal index occurred from March to October, where the peak season occurred in May and August, and the respective indexes were 0.23 and 0.22 or equivalent to the catch average of 2.98 and 3.00 tons; and the low fishing season index was from November to February, which the lowest seasonal index of -0.36 occurred in December or equivalent to the catch average of 1.56 tonKeywords: fishing season, fluctuation, skipjack, Bitung ABSTRAKPenelitian ini bertujuan untuk mengetahui fluktuasi musim penangkapan ikan cakalang (Katsuwonus pelamis) yang didaratkan di Pelabuhan Perikanan Samudra Bitung dengan menggunakan metode deskriptif melalui pendekatan studi kasus. Data dianalasis menggunakan metode analisis periode.  Hasil penelitian menunjukkan Indeks musim yang besar terjadi pada bulan Maret sampai Oktober, dimana puncak musim terjadi pada bulan Mei dan Agustus dengan index masing-masing sebesar 0,23 dan 0,22 atau hasil tangkapan rata-rata 2,98 dan 3,00 ton, dan indeks musim penangkapan terkecil berada pada bulan November – Februari, dimana indeks musim terendah terjadi pada bulan Desember yakni sebesar 0,36 atau rata-rata tangkapan sebesar1,56 tonKata-kata kunci : Musim penangkapan, fluktuasi, Cakalang, Bitung
Produktivitas purse seiner 15 – 30 GT penangkap ikan layang (Decapterus sp) (Productivity of Scads Purse Seiner 15-30 GT) Yustin Yusuf; Lusia Manu; Alfred Luasunaung
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 3 No. 1 (2018): Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.3.1.2018.18904

Abstract

Productivity of purse seiner contributes to fishing catch. The purpose of this research was determined the productivity of scads purse seiner > 15 GT - 30 GT which landed at the Bitung Oceanic Fishing Port during 2016. Descriptive method with purposive sampling technique used in this research. The results indicated that were 8 purse seiners having the productivity value is greater than 1.2 tons with the highest production of 216.51 tons. Keywords: productivity, purse seiner, scads, Bitung ABSTRAKProduktivitas kapal purse seine berkontribusi terhadap hasil penangkapan ikan.  Tujuan penelitian ini adalah mengetahui produktivitas kapal purse seine penangkap ikan layang (Decapterus sp.) berukuran > 15 GT – 30 GT yang didaratkan di Pelabuhan Samudra Bitung selama tahun 2016. Metode deskriptif dengan teknik purposive sampling digunakan dalam penelitian ini. Hasil penelitian menunjukan terdapat 8 kapal yang nilai produktivitasnya lebih besar dari 1,2 ton dengan produksi sebesar 216,51 tonKata-kata kunci: Produktivitas, kapal purse seine, ikan layang, Bitung
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).
Co-Authors Billy Jehosua Evander Nelwan Fanny Silooy Ismanto A.R. Taib Ivor L. Labaro Johnny Budiman Kawilarang W. A. Masengi Lefrand Manoppo Lusia Manu Revols D. CH. Pamikiran Vivanda O. J. Modaso Yustin Yusuf