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All Journal Jurnal Teknologi Perikanan dan Kelautan Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut International Journal of Marine Engineering Innovation and Research JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP
Didin Komarudin
Departemen Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan Dan Ilmu Kelautan, Institut Pertanian Bogor, Jalan Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia
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KEMULURAN DAN KEKUATAN PUTUS TALI SABUT KELAPA BERLAPIS KITOSAN: Elongation and Breaking Strength of The Chitosan-Coated Coir Rope Didin Komarudin; Diniah Diniah; M. Dahri Iskandar; Dwi Putra Yuwandana; Yopi Novita
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 11 No. 2 (2020): Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v11i2.46115

Abstract

Coating of coconut coir rope as a material for fishing gear is carried out to inhibit the decomposition process and increase the breaking strength and elongation of the rope. In this study,the coating of coconut coir rope using chitosan as an antimicrobial is expected to inhibit the growth of micro-organisms. This study aims to determine the elongation and breaking strength of chitosancoated coconut coir ropes. The research method used is experimental. Data analysis used the Kolmogorov–Smirnov normality test and RAL (Completely Randomized Design)- to determine the effect of chitosan coating on the elongation and breaking strength of coconut fiber ropes. The results showed that the chitosan coir rope had a dark brown color, while the control coir rope had a light brown color. The direction of the twist is "S", with a "hard" type of twist so that the rope tends to be stiff. The fiber type is staple fiber (short fiber). The elongation of the chitosan coir rope was 10.21 cm, 17.55% higher than the untreated coconut coir rope, which was 8.68 cm. The average breaking strength of chitosan coir rope was 37.41 kgf or 11.87% higher than untreated coconut coir rope, which was 33.44 kgf. Keywords: elongation, breaking strength, chitosan, chitosan coconut fiber rope.
KEMULURAN DAN KEKUATAN PUTUS TALI SABUT KELAPA BERLAPIS KITOSAN: Elongation and Breaking Strength of The Chitosan-Coated Coir Rope Didin Komarudin; Diniah Diniah; M. Dahri Iskandar; Dwi Putra Yuwandana; Yopi Novita
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 11 No. 2 (2020): Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Coating of coconut coir rope as a material for fishing gear is carried out to inhibit the decomposition process and increase the breaking strength and elongation of the rope. In this study,the coating of coconut coir rope using chitosan as an antimicrobial is expected to inhibit the growth of micro-organisms. This study aims to determine the elongation and breaking strength of chitosancoated coconut coir ropes. The research method used is experimental. Data analysis used the Kolmogorov–Smirnov normality test and RAL (Completely Randomized Design)- to determine the effect of chitosan coating on the elongation and breaking strength of coconut fiber ropes. The results showed that the chitosan coir rope had a dark brown color, while the control coir rope had a light brown color. The direction of the twist is "S", with a "hard" type of twist so that the rope tends to be stiff. The fiber type is staple fiber (short fiber). The elongation of the chitosan coir rope was 10.21 cm, 17.55% higher than the untreated coconut coir rope, which was 8.68 cm. The average breaking strength of chitosan coir rope was 37.41 kgf or 11.87% higher than untreated coconut coir rope, which was 33.44 kgf. Keywords: elongation, breaking strength, chitosan, chitosan coconut fiber rope.
DIMENSI UTAMA DAN STABILITAS KAPAL PANCING TONDA DI WANGI-WANGI KABUPATEN WAKATOBI Kumala Sari Ode Murhum; Yopi Novita; Mohammad Imron; Didin Komarudin
Jurnal Teknologi Perikanan dan Kelautan Vol 13 No 2 (2022): NOVEMBER 2022
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3099.703 KB) | DOI: 10.24319/jtpk.13.111-119

Abstract

Based on ship accident report data, during 2016-2020 there were 65 cases of ship accidents reported. The occurrence of a capsized ship is caused by poor ship stability or the main dimensions of the ship that are not in accordance with its designation. This study aims to identify the main dimensions and analyze the stability of the troll liner used by fishermen in Wangi-Wangi. The data collection technique used was accidental sampling. The results showed that the troll liner at Wangi-Wangi had the main dimension ratio values of L/B mostly (90,37%) in accordance with the reference values, the overall B/D ratio values (100%) were in accordance with the range of reference values, and the value of the L/D ratio is only a small portion (21,39%) within the reference range. The troll liner at Wangi-Wangi have a positive stability arm (GZ) value so that they have the ability to return to their original (stable) position after experiencing a tilt. The GZ value of the ship is directly proportional to the size and condition of the ship's cargo, where the greater the size and condition of the ship's cargo, the greater the GZ value of the ship.
PERBANDINGAN KEDALAMAN DAN MATERIAL PERANGKAP POST LARVA LOBSTER DI TELUK AWANG, LOMBOK Wahbi Wahbi; Mulyono S. Baskoro; Didin Komarudin
Jurnal Teknologi Perikanan dan Kelautan Vol 14 No 2 (2023): NOVEMBER 2023
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.14.191-201

Abstract

The rearing activities of lobster post-larvae still depend on seeds from nature, while the post-larvae caught are few and the size is not uniform. Therefore, effective and efficient fishing gear is needed. Regarding the effectiveness of fishing gear, it is influenced by various factors including the depth of operation and the forming material to obtain an effective and efficient trap, it was tested based on the constituent materials, namely cement sacks and shrimp feed sacks. At the depth of operation with a depth of 2, 4, 6, 8, 10, 12, and 14 m. This study aims to compare the effective trap materials for catching lobster post larvae and identify the appropriate depth of trap placement with the lobster post-larva swimming layer. The results showed that the comparison of the depth of the trap at a depth of 14 m gave the highest catch of 47 fish and the lowest at a depth of 2 and 4 m with a catch of 3 fish, while in the comparison of forming materials the highest catch was in the sack material, which was 191 individuals, while in the feed sack shrimp is 188 individuals. Based on the results of the study showed a depth of 14 m and cement sack material gave the highest catch.
Ukuran dan jenis tangkapan post larva lobster pada perbandingan kedalaman dan material perangkap di teluk awang lombok Didin Komarudin; Mulyono; Wahbi
JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP Vol. 8 No. 2 (2023): Juli - Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jitpt.8.2.2023.48839

Abstract

Lobster farming still depends on larvae from nature, while the number of larvae caught is small and the size is not uniform. The effectiveness of a trap is caused by various factor. So that in this study it was tested based on the depth test of trap placement and forming material. This study aims to compare the effective trapping materials and identify the trapping depth according to the type and size of post larvae lobsters. The results showed that at the depth of trapping, namely sand lobsters at a depth of 14 meters with a total of 35 heads and a size of 5 cm, was found mostly at a depth of 14 meters with a total of 25 individuals. In the comparison of cement bag trap materials, the catch was the highest, where the cement bag type of lobster larvae that was caught the most was the sand lobster with a total of 154 and in the cement bag, size 5 was obtained with the most number caught. At a depth of 14 meters and cement sack material, the highest number of post-larval lobsters was caught, namely sand lobsters and 5 cm in size, the highest catch was obtained.
Modulus of Rupture and Modulus of Elasticity in Recycling FRP Tri Nanda Citra Bangun; Nabila Rahmawati; Yopi Novita; Didin Komarudin; Mokhamad Dahri Iskandar; Deni Purnomo; Budhi Hascaryo Iskandar
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 4 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.4838

Abstract

Fiber Reinforced Plastic (FRP) material has been widely used as a ship construction alternative to wood. FRP has many advantages such as lightweight material, easy maintenance, weather resistance, economical price, and shorter production time. FRP ship production is weak from the waste factor produced, such as production residue during shipbuilding, ship molds, and FRP shipwrecks. FRP waste can impact the environment, economy, and human health. These impacts include soil pollution, microplastics, skin diseases, and human respiratory disorders. FRP material tends to be burned by many shipyards but still leaves waste in the form of dust. FRP material is difficult to decompose and takes a long time to melt. One strategic effort to minimize the impact of FRP is to recycle FRP. This study aims to reduce FRP waste by making composite boards from FRP waste. The method used was experimental, involving the making of 12 specimens and testing the density, MOR, and MOE. Based on the results of the density value test, the average value obtained follows the JIS A 5905-2003 reference. The MOR and MOE values for each specimen do not comply with the Indonesian Classification Bureau (BKI) standards. In the ANOVA test calculation, no significant differences were obtained for MOR and MOE.
Study of FRP Ship Waste Composite Materials and Its Combustion Residue Nabila Rahmawati; Yopi Novita; Didin Komarudin; Mokhamad Dahri Iskandar
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.5055

Abstract

The escalating utilization of FRP materials ultimately gives rise to issues related to waste production. Waste disposal typically involves incineration, as practiced at UD Wahyu Asih Fiberglass. The combustion process yields thick black smoke and a pungent odor. Incineration does not annihilate fiberglass material but generates combustion byproducts, such as solid ash. This study aims to elucidate the material type, chemical element content, and associated properties inherent in FRP shipbuilding materials at UD Wahyu Asih Fiberglass Shipyard. The methodology commences with the identification of materials utilized in FRP ship manufacture through field observations at the shipyard. Another objective of this study is to quantify the ash content and ascertain the total particulate matter during the incineration process of FRP shipbuilding material waste via laboratory tests. The total particulate data obtained will be compared with applicable emission quality standards.
Co-Authors Budhi Hascaryo Iskandar Deni Purnomo Diniah Diniah Dwi Putra Yuwandana Kumala Sari Ode Murhum M. Dahri Iskandar Mohammad Imron Mokhamad Dahri Iskandar Mulyono Mulyono S. Baskoro Nabila Rahmawati Tri Nanda Citra Bangun Wahbi Wahbi Wahbi Yopi Novita Yopi Novita Yopi Novita