Marine Fisheries : Journal of Marine Fisheries Technology and Management
Not a member yet
314 research outputs found
Sort by
KEMULURAN DAN KEKUATAN PUTUS TALI SABUT KELAPA BERLAPIS KITOSAN: Elongation and Breaking Strength of The Chitosan-Coated Coir Rope
Get PDFCoating 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
PENILAIAN KUALITAS DATA YANG DIBUTUHKAN UNTUK PENYUSUNAN RENCANA PENGELOLAAN RAJUNGAN BERKELANJUTAN DI TELUK JAKARTA: Assessment of Data Quality Required to Develop a Sustainable Blue Swimming Crab Management Plan in Jakarta Bay
Get PDFTeluk Jakarta merupakan kawasan penangkapan rajungan yang harus dikelola oleh Pemerintah Provinsi DKI Jakarta untuk kelestariannya. Pemerintah DKI Jakarta harus menyusun strategi pengelolaan yang baik berdasarkan data/informasi berupa: (1) habitat kepiting; (2) distribusi kepiting yang cocok untuk ditangkap; (3) nilai potensi berkelanjutan Teluk Jakarta; dan (4) kapasitas penangkapan kepiting. Saat ini kondisi data/informasi tersebut belum diketahui. Penelitian ini bertujuan untuk mengetahui ketersediaan dan kualitas data/informasi serta menilai kelayakannya sebagai dasar penyusunan rencana pengelolaan wilayah yang baik. Informasi keberadaan dan kualitas data dikumpulkan melalui penelusuran data/informasi statistik di berbagai instansi pemerintah/non pemerintah, survei lapangan, wawancara dengan nelayan dan berbagai sumber lainnya. Analisis skoring dilakukan untuk setiap jenis data, meliputi: (A) keberadaan data; (M) kemudahan akses data; dan (C) kecukupan data. Hasil skoring menunjukkan bahwa data kondisi pembuatan peta habitat rajungan, pembuatan peta lokasi dan ukuran rajungan yang ditangkap, pendugaan potensi lestari, dan pendugaan kapasitas penangkapan rajungan masing-masing adalah 590, 500, 680, dan 600. Disimpulkan bahwa Pemprov DKI Jakarta dapat menyusun rencana pengelolaan perikanan rajungan dengan beberapa catatan terkait hal-hal yang belum tersedia data pendukungnya.
Kata kunci: kualitas data, rajungan, skoring, Teluk Jakart
STRATEGI PENINGKATAN AKTIVITAS PERIKANAN TANGKAP DI KABUPATEN KEBUMEN: Strategy to Increase Capture Fisheries Activity in Kebumen District
Get PDFKabupaten Kebumen memiliki potensi sumberdaya ikan yang besar dengan posisi wilayah perairan yang langsung berhadapan dengan Samudera Hindia. Kondisi saat ini, aktivitas perikanan sudah berlangsung dengan baik dengan adanya 7 tempat pendaratan ikan dan 1 pelabuhan perikanan pantai. Nelayan masih mengalami kendala dengan keterbatasan prasarana di pelabuhan, sarana kapal/perahu yang masih berukuran kecil, cuaca dan gelombang besar pada saat musim barat, keberadaan ikan yang bersifat musiman, dan belum memiliki kemampuan untuk dapat mendeteksi keberadaan ikan. Penelitian ini bertujuan untuk (1) mendeskripsikan kegiatan yang telah dilakukan saat ini; (2) menentukan faktor kekuatan dan kelemahan internal, serta peluang dan ancaman eksternal; (3) menyusun strategi peningkatan aktivitas. Hasil penelitian menunjukkan bahwa produksi ikan utama di Kabupaten Kebumen yaitu lobster, layur, dan bawal putih. Ketiga komoditi ini merupakan komoditi ekspor. Secara umum produksi dan nilai produksi dari ketiga komoditi tersebut terus mengalami peningkatan pada periode pada 2017-2021. Strategi untuk peningkatan aktivitas perikanan yaitu pengembangan teknologi dengan menggunakan kapal yang lebih besar, peningkatan sumberdaya manusia, diversifikasi pengolahan produk, dan peningkatan kapabilitas nelayan terkait dengan pengelolaan keuangan dan pemasaran
LITERATURE REVIEW OF FLYING FISH: BIOLOGY, DISTRIBUTION, FLYING FISH FISHERIES, AND CURRENT RESEARCH: Tinjauan Pustaka Ikan Terbang: Biologi, Distribusi, Perikanan Ikan Terbang, dan Penelitian Terkini
No full textThis article presents various literature related to flying fish from 1930 to the present, which are shown in the form of aspects of biology, distribution, fisheries, and utilization of Current Technology in Flying Fish Research. This study was conducted through a systematic search and review of various articles, books, dissertations, and theses that discuss flying fish. Literature studies related to flying fish are important to provide more complete information required to maintain the sustainability of their resources. This study shows the classification, type, spawning process, body shape, ability to glide in the waters, distribution, fishing technology, and current technology in various researches.
Keywords: biology, distribution, flying fish, fisherie
STRUKTUR SOSIAL, STRATEGI NAFKAH, DAN TINGKAT KESEJAHTERAAN NELAYAN PASCA REKLAMASI TELUK JAKARTA : Social Structure, Livelihood Strategy, and Fishers\u27 Welfare in the Post-Reclamation of North Jakarta Coast
Get PDFReclamation can be a source of social changes in fishing communities. This study aims to analyze the social structure, strategies for earning a living, and the level of welfare of the fishing community in Cilincing Fishers’ Village, North Jakarta during the post-reclamation period. The research was conducted using both quantitative and qualitative methods. Quantitative data were obtained by distributing questionnaires and then processed using the Paired-Sample T-test and the Wilcoxon Signed Ranking Test. Qualitative data were obtained through in-depth interviews with informants. The results showed that the social structure of fishers in Cilincing remained the same before and after reclamation. In terms of the social associative process, there are significant differences between before and after reclamation. After-reclamation, there has been an increase in various togetherness activities such as cooperation, mutual assistance, and deliberation. In terms of livelihood strategies, some fishers have experienced changes after reclamation, for example by doing side jobs. From the welfare level, both catch and income experienced a significant decline. Keywords: fishers, livelihood strategy, reclamation, social structure, welfare
PENDUGAAN STATUS STOK DAN INDIKATOR BIOEKONOMI PERIKANAN KERAPU DI TELUK SALEH, NUSA TENGGARA BARAT: Estimating Stock Status and Bioeconomic Indicator of Grouper Fishery in the Saleh Bay Waters, West Nusa Tenggara Province
No full textOne of the challenges in managing small-scale fisheries with limited data is the need for indicators to estimate the stock status and the total allowable catch for sustainable utilization of fish resources. This study aims to estimate the stock status, catch, and optimal fishing effort of the grouper fishery in Saleh Bay, West Nusa Tenggara Province by using the Length-based Spawning Potential Ratio analysis, production surplus model, and bioeconomic approach. Based on the results of this study, it is known that Plectopomus leopardus and Epinephelus coioides are in overexploited condition, while Plectropomus maculatus is in fully exploited status. This study also shows that with a bioeconomic approach, optimal conditions for grouper fisheries in these waters are achieved when the catch is 3,862.1 tonnes per year. The results of this study underline the importance of maximum economic yield-based management as a framework for a fishing quota-based system as an additional instrument in implementing sustainable fishery management in the future. The success of applying the quota system and the total allowable effort is determined by the accuracy of the catch data of small vessels around Saleh Bay under regulatory provisions, supervision and effective law enforcement, the socio-cultural conditions of local communities and the level of compliance with regulations.Keywords: fishing effort, grouper, overfished, quota system
ENGINEERING PORTABLE UNDERWATER LAMP AS AN AUXILIARY GEAR FOR PURSE SEINE
Get PDFLights are common supporting tool in purse seine fishing in Indonesia. Currently, lamps on purse seines use mercury and metal halide (MH) which require very high electrical power. Therefore, there is a need for an effective underwater light technology alternative with low electric power. The aim of this research is to design a portable underwater lamp (PUL) which can be controlled remotely to support fishing operations. The design engineering process in creating the PUL includes light and buoy construction, temperature testing, light distribution, waterproofing, and motion testing. The results show that the PUL design enables the tools to be controlled remotely. The average temperature of the lamp on the PUL is 40 ⁰C, this temperature is lower than the MH lamp which reaches 250 ⁰C. The light spreads evenly at an angle of 360⁰ to the horizontal and 180° to the vertical. Meanwhile, the results of the lamp motion test showed that the lamp was watertight and highly stable.
Keywords: Light emitting diode, Remote control, Waterproof, Electric Power
Estimasi Ketersediaan Ikan dan Kebutuhan Bahan Baku Industri Pengolahan Ikan Di PPN Brondong Lamongan
Get PDFThe Brondong Fishing Port is the largest in East Java. The catches landed in the Brondong fishing port increase, but they are insufficient to meet the raw material necessity of the existing processing industry. The study aims at estimating fish availability and the necessity of raw materials for the fish processing industry in the Brondong fishing port. This research was conducted from January to March 2022 by using a descriptive method. Data were collected through interviews and a literature study. The results revealed that the installed capacity for eight fish processing industries in the Brondong fishing port counted as 123,300 tons/year. Starry triggerfish, Lizard fishes, Streaked spine foot, freckled goatfish, squid, croaker, red snapper, spotted sil, grouper, threadfin breams, hardtail, big eyes, and yellow pike conger were all necessary for the processing industry. In contrast, the estimation of fish availability for the fish processing industry at Brondong fishing port counted as 45,086 tons/year. It indicated a gap between fish availability and the demand from the fish processing industry in the Brondong fishing port. This may impact the fish processing industry\u27s development in the Brondong fishing port. Keywords: Raw material necessity, fish availability, fish processing industr
UKURAN LAYAK TANGKAP DAN DAMPAK EKOLOGIS PENANGKAPAN BARONANG (Siganidae) DI PERAIRAN PULAU HARAPAN, KEPULAUAN SERIBU, JAKARTA
Get PDFRabbitfishes (Siganids) fishing activities tend to increase and potentially impact fish target and ecosystem, which is indicated by changes in population size and structure and the trophic level of the catches. Scientific information on Siganids fishing techniques and its ecological impact are limited. The aims of the study are: (1) to describe technical fishing aspects of Siganids fishery; (2) to estimate parameters of length at first maturity (Lm) as catch size limit indicators for this fish target; (3) to evaluate the impact of fishing on food chain balances (trophic level) the fish resources in this study area. The Siganids fishing techniques were observed during the field study. The catch of Siganids species and other fishes from various fishing gears were sampled, then identified and calculated individually. The samples of Siganids fish were also measured for its length and weight. This study showed that the fishers were used three kinds of fishing gears to target the Siganids fish, i.e., rope traps, bamboo traps, and spear gun. There were five species of Siganids caught during the research, they are: Barhead spinefoot (Siganus virgatus), Goldspotted spinefoot (S. punctatus), Streaked spinefoot (S. javus), Orange-spotted spinefoot (S. guttatus), and White-spotted spinefoot (S. canaliculatus), with the Lm value of 3.5, 22.8, 30.6, 21.2, and 20.8 cm, respectively. All catches of the Siganids exceeded the catch size limit (Lm), except for S. punctatus and S. Javus which was only 65.51% and 4.00% of the respective catches were acceptable in size. Finally, the Siganids fishing activities in the study area potentially impacted the ecological function of natural food chain balance (trophic level). It was indicated by the dominance (48%) of the catches on trophic level 3.
Keywords: fishing impact, rabbitfish, Siganidae, size limit, trophic leve
POLA MUSIM PENANGKAPAN Sardinella fimbriata YANG DIDARATKAN DI PPN PRIGI – JAWA TIMUR
Get PDFFringe-scale sardine (Sardinella fimbriata) is one of the dominant species landed in Prigi fishing port. However, in recent years the sardine fishery management might deal with some overfishing indicators of this species . The purpose of this study was to determine the trend of catches, fluctuations in catch per unit effort (CPUE), and the pattern of the fringe-scale fishing season using catch-effort data of purse seine and gillnet landed at PPN Prigi in the period 2011-2020. The results showed that the catch fluctuated every year . CPUE has tended to increase over the last ten years but decreased in 2014 and 2020. The highest CPUE value occurred in 2019 which was 0,21kg/trip. The Peak fishing season occurs in December – March.