Marine Fisheries : Journal of Marine Fisheries Technology and Management
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MODIFIKASI KAPAL PURSE SEINE 30 GT DENGAN MENAMBAHKAN CADIK UNTUK MENINGKATKAN SURVIVAL OF INTACT STABILITY
Get PDFA fishing operation is a dangerous and high risk activity. Stability of the vessel plays an important role in performing safely and successfully fishing operations. A brand new 30 GT purse seiner, production of a traditional shipyard in Batang Regency, experienced 15o heel after its launch. This condition potentially affects the stability of the vessel. The purpose of the study is to analyze the vessel stability and improve existing stability by adding outriggers. Research was conducted in two phases, data collection in the research site and stability analysed using a naval architecture software. The vessel stability was analyzed in six loading scenarios following the fishing operation process, subsequently the stability was compared against IMO standard. Results show that with the existing design, the vessel does not meet IMO criteria for the most applied scenarios. Next step, outriggers were added in both sides of the vessel model, as an effort to improve its stability. Accordingly, it is revealed that outriggers addition is scientifically proven to improve the stability of the studied vessel. As this research merely focused on the stability improvement, further analysis regarding maneuverability is required given a purse seiner operates encircled fishing gear.
Keywords: outrigger, purse seiner, stabilit
TEKNOLOGI PENANGKAPAN POCONG-POCONG UNTUK GURITA DI KECAMATAN KABAENA BARAT SULAWESI TENGGARA
Get PDFABSTRACTPocong-pocong is one type of handline fishing gear used to catch octopus in West Kabaena District, Southeast Sulawesi. The research objectives was to examine the fishing gear technology of pocong-pocong related to its construction, the method of fishing, and the effectiveness of octopus capture in West Kabaena District of Southeast Sulawesi. The research method used is a survey method by collecting data based on the results of observations at the study site. Data analyze are using qualitative and quantitative descriptive. The results showed that the technical aspects of pocong-pocong fishing gear still used a simple construction with the main components of this fishing gear were hooks and a attractor that resembles an octopus. The catching methods of pocong-pocong fishing gear by pulling back and forth. The effectiveness of temporal octopus catches in West Kabaena District is based on the moon phase that is in the third month phase of 48%, based on season which is in the west season by 90%, based on the time of arrest can be done at noon at 06.00-12.00 Central Indonesian Time.Keywords: effectiveness, octopus, pocong- pocong ABSTRAKPocong-pocong merupakan salah satu jenis alat tangkap hand line yang digunakan untuk menangkap gurita di Kecamatan Kabaena Barat. Tujuan penelitian yaitu mengkaji teknologi penangkapan gurita dengan menggunakan alat tangkap pocong-pocong, terkait aspek teknis dan efektivitas secara temporal di Kecamatan Kabaena Barat Sulawesi Tenggara. Metode penelitian yang digunakan adalah metode survei dengan pengumpulan data berdasarkan hasil observasi di lokasi penelitian. Analisis data yaitu analisis deskriptif kualitatif dan deskriptif kuantitatif. Hasil penelitian menunjukkan aspek teknis alat tangkap pocong-pocong memiliki kontruksi sederhana dengan komponen utama dari alat tangkap yaitu mata pancing dan atraktor yang berumbai-rumbai menyerupai gurita. Metode penangkapan alat tangkap pocong-pocong dengan cara ditarik-ulur. Efektivitas penangkapan gurita secara temporal di Kecamatan Kabaena barat yaitu berdasarkan fase bulan yaitu pada fase bulan III sebesar 48%; berdasarkan musim yaitu pada musim barat sebesar 90%; berdasarkan waktu penangkapan dapat dilakukan pada siang hari pada pukul 06:00 WITA–12;00 WITA.Kata kunci: efektivitas, gurita, pocong-pocon
DESAIN KONFIGURASI SISTEM PROPULSI HYBRID TERHADAP PENGURANGAN KONSUMSI BBM KAPAL PENANGKAP IKAN 30 GT (Configuration Design of a Hybrid Propulsion System to Reduce Fuel Oil Consumption of a 30 GT Fishing Vessel)
Get PDFThis study aims to reduce fuel oil consumption of a 30 GT fishing vessel through configuration design of diesel and electric motor hybrids propulsion system. The configuration design of hybrids propulsion system systematically include; i) loading assumption; ii) prediction of speed-thrust; iii) prediction of fuel oil consumption. Design of hybrids propulsion system was analyzed by using the concept of time domain simulation of vessel movement. The result indicated that the hybrids propulsion system implemented to fishing vessel was very effective to reduce fuel consumption compared with conventional propulsion system, especially in variation of loading and speed condition.Keywords: fishing vessel, hybrids propulsion system and fuel oilPenelitian ini bertujuan untuk mengurangi konsumsi bahan bakar minyak kapal penangkap ikan 30 GT melalui desain konfigurasi sistem propulsi hybrid diesel-listrik. Secara sistematis perancangan sistem propulsi hybrid meliputi; i) asumsi pembebanan operasi; ii) prediksi speed-thrust; iii) prediksi konsumsi bahan bakar. Desain sistem propulsi hybrid dianalisis dengan menggunakan konsep time domain simulation pergerakan kapal. Hasil penelitian menunjukkan bahwa penggunaan sistem propulsi hybrid pada kapal penangkap ikan sangat efektif dalam mengurangi konsumsi bahan bakar dibandingkan dengan sistem propulsi konvensional, terkhusus pada kondisi pemuatan dan kecepatan yang bervariasi.Kata kunci: Bahan bakar, kapal penangkap ikan, sistem propulsi hybri
DINAMIKA HASIL TANGKAPAN BARONANG (Siganus sp.) PADA RUMPON HIDUP SECARA SPASIAL-TEMPORAL DI PESISIR ULOULO KABUPATEN LUWU
Get PDFABSTRACTBiological-Fish Aggregation Devices (Bio FADs) is FADs which designed used seaweed as an attractor. Bio FADs in this study were made using two species of seaweed i.e Eucheuma cottonii, called cottonii FADs (FC) and Gracilaria sp. called gracilaria FADs (FG). The purpose of this study was to analyze the dynamics of Siganus sp catch around Bio FADs based on species, abundance, and ecological characteristics spatially and temporally. The research was conducted in Uloulo coastal waters of Luwu district from October 2014 to August 2015. Fish samples were collected by using scoop net on both types of FADs which were installed in three different habitats as observation stations. The Shannon-Wienner (H\u27) diversity index is relatively moderate in spatially and temporally. ANOSIM shows that the abundance of fish catches between habitats is significantly different (R = 0,268; p = 0,001). River estuary habitat has the highest abundance of catches which is about 14.77 ind/m2. Furthermore, the abundance of catches between monsoon was significantly different (R = 0,110; p = 0,001). The highest abundance of fish catches in the west monsoon (WM) is about 20,67 ind/m2. SIMPER analysis shows that Siganus canaliculatus is the main species based on habitat and season. The contribution of Siganus canaliculatus is quite high in seagrass habitat which is about 96.38%. Keywords: Bio-FADs, dynamics of catch, Siganus sp.ABSTRAKRumpon hidup atau Biological-Fish Aggregation Devices adalah rumpon yang didesain menggunakan rumput laut sebagai atraktor. Rumpon hidup pada penelitian ini dibuat dengan menggunakan rumput laut jenis Eucheuma cottonii sehingga disebut rumpon cottonii(RC) dan Gracillaria sp atau rumpon gracillaria (RG). Tujuan penelitian ini adalah menganalisis dinamika hasil tangkapan ikan baronang (Siganus sp.) di sekitar rumpon hidup berdasarkan jenis, kelimpahan, dan karakteristik ekologis secara spasial dan temporal. Penelitian ini dilaksanakan di perairan pesisir Uloulo Kabupaten Luwu dari bulan Oktober 2014 sampai Agustus 2015. Sampel ikan dikumpulkan dengan menggunakan serok pada kedua jenis rumpon yang dipasang di tiga habitat yang berbeda sebagai stasiun pengamatan. Indeks diversitas Shannon-Wienner (H\u27) secara spasial dan temporal relatif moderat. Hasil ANOSIM menunjukkan bahwa kelimpahan hasil tangkapan ikan antar habitat berbeda sangat nyata, (R = 0,268; p = 0,001). Habitat muara sungai memiliki kelimpahan hasil tangkapan tertinggi yaitu 14,77 ind/m2. Selanjutnya kelimpahan hasil tangkapan berdasarkan musim berbeda nyata (R = 0,110; p = 0,001). Kelimpahan hasil tangkapan ikan tertinggi pada musim barat (MB) yaitu 20,67 ind/m2 .Analisis SIMPER menunjukkan bahwa Siganus canaliculatus sebagai spesies utama berdasarkan habitat dan musim. Kontsribusi Siganus canaliculatus cukup tinggi pada habitat padang lamun yaitu sebesar 96,34% .Kata kunci: rumpon hidup, dinamika hasil tangkapan, Siganus sp
SEBARAN SPL KAITANNYA DENGAN HASIL TANGKAPAN IKAN CAKALANG (KATSUWONUS PELAMIS) DI PERAIRAN ACEH
Get PDFABSTRACTSkipjack (Katsuwonus pelamis) has high economic value and many catched in Aceh waters. This study aims to calculate the catch of skipjack, compare the Sea-Surface Temperature (SST) on satellite image with real sea-surface temperature, and determine the effect of sea-surface temperature for the skipjack catch in Aceh waters. This study used data of skipjack catch, sea-surface temperatureon satellite image and real sea-surface temperature (on field) that was conducted in September 2017, using survey method in 32 points of fishing ground with 3 trips. Average of sea-surface temperature was around 27.24 oC, while the sea-surface temperature in Aqua MODIS images was around 28.21 oC in the transition of east-west season. There was differences in real sea-surface temperature and image sea-surface temperature of satellite, but it is not significant. Total catch of skipjack fish in September 2017 was 51,409 kg, and average of CPUE was 1,658 kg/setting. The highest catch of skipjack was 13,280 kg with sea-surface temperature at 27,4 oC because that temperature is the optimum temperature for skipjack. Temperature is affects to the skipjack distribution.Keywords: Katsuwonus pelamis, MODIS, SSTABSTRAKIkan cakalang (Katsuwonus pelamis) merupakan salah satu jenis ikan yang mempunyai nilai ekonomis tinggi, dan banyak tertangkap di Perairan Aceh. Penelitian ini bertujuan untuk menghitung hasil tangkapan ikan cakalang, membandingkan antara SPL citra dan SPL di lapangan, dan untuk mengetahui pengaruh SPL terhadap hasil tangkapan ikan cakalang di Perairan Aceh, dengan menggunakan data hasil tangkapan ikan cakalang, SPL citra dan SPL lapangan. Penelitian dilakukan pada bulan September 2017. Metode yang digunakan adalah metode survei dengan 32 titik stasiun lokasi penangkapan dengan melakukan 3 trip pelayaran dengan rata-rata SPL lapangan sekitar 27,24 oC. Adapun SPL pada citra Aqua MODIS sekitar 28,21 oC pada musim peralihan timur – barat. Walaupun terdapat perbedaan SPL lapangan dan citra tetapi tidak terlalu signifikan. Total hasil tangkapan ikan cakalang pada bulan September 2017 sebanyak 51,409 kg, dengan rata-rata CPUE 1,658 kg/setting. Hasil tangkapan ikan cakalang paling banyak tertangkap pada suhu 27,4 0C sebanyak 13.280 kg. Hal ini disebabkan pada suhu tersebut merupakan suhu optimum ikan cakalang karena suhu mempengaruhi distribusi penyebaran ikan.Kata kunci: Katsuwonus pelamis, MODIS, SP
KLASTERISASI KARAKTERISTIK PERIKANAN TANGKAP SKALA KECIL DI KABUPATEN KAYONG UTARA
Get PDFABSTRACTOne of the main problems in the development of small-scale capture fisheries is their characteristics that vary in each region. Lack of information about the characteristics of small-scale capture fisheries in each region can make intervention by the Government in development programs ineffective. The purpose of this study is to describe the local characteristics of small-scale fisheries in Kayong Utara Regency based on six aspects of fisheries development, namely: natural, human, physical, financial, social and institutional aspects then grouping fishing villages in Kayong Utara Regency according to their characteristics. The method used to group fishing villages was using multi criteria analysis (MCA). The MCA is performed by simple linear evaluation and hierarchical clustering anaylisis. The results showed that the the most important characteristic were human aspect and the lowest was institutional aspect. The fishing villages in North Kayong Regency are grouped into 4 clusters according to their respective character similarities. Cluster 1 consisted 2 fishing villages, namely Dusun Besar and Sutra. In Cluster 2, there were 4 fishing villages, namely Dusun Kecil, Rantau Panjang, Pulau Kumbang, and Mas Bangun. Then cluster 3 there were 4 fishing villages namely Tanjung Satai, Pemangkat, TBS, and TBU. Whereas cluster 4 there were 2 fishing villages namely Riam Berasap and Alur Bandung. Keywords: development, fishing village, intervention, livelihoodABSTRAKSalah satu permasalahan utama dalam pembangunan perikanan tangkap skala kecil adalah karakteristiknya yang berbeda-beda di setiap daerah. Keragaman karakteristik perikanan skala kecil ini dapat membuat intervensi yang dilakukan pemerintah dalam program pembangunan menjadi tidak efektif. Tujuan dari penelitian ini adalah untuk menggambarkan karakteristik perikanan tangkap skala kecil di Kabupaten Kayong Utara berdasarkan enam aspek pembangunan perikanan, yaitu: aspek alam, manusia, fisik, keuangan, sosial dan kelembagaan kemudian mengelompokan tipologi desa-desa nelayan di Kabupaten Kayong Utara sesuai dengan kemiripan karakteristiknya. Metode yang digunakan untuk mengelompokkan desa-desa nelayan menggunakan analisis multi kriteria (MCA). MCA dilakukan dengan simple linear evaluation dan hierarchical clustering anaylisis. Hasil penelitian menunjukkan bahwa karakteristik yang paling unggul adalah aspek manusia dan yang paling lemah adalah aspek kelembagaan. Desa-desa nelayan di Kabupaten Kayong Utara dikelompokkan menjadi 4 klaster sesuai dengan kemiripan karakteristiknya. Klaster 1 terdiri dari 2 desa nelayan, yaitu Dusun Besar dan Sutra. Pada klaster 2 terdapat 4 desa nelayan, yaitu Dusun Kecil, Rantau Panjang, Pulau Kumbang, dan Mas Bangun. Kemudian klaster 3 terdapat 4 desa nelayan yaitu Tanjung Satai, Pemangkat, TBS, dan TBU. Klaster 4 terdapat 2 desa nelayan yaitu Riam Berasap dan Alur Bandung.Kata kunci: desa nelayan, intervensi, mata pencaharian, pembanguna
KESESUAIAN DAERAH PENANGKAPAN RAJUNGAN (Portunus pelagicus) MENGGUNAKAN ANALISIS SPASIAL PARAMETER LINGKUNGAN DAN HASIL TANGKAPAN DI PULAU LANCANG
Get PDFThe blue swimming crab in the waters of Lancang Island is indicated as being overfished. Hence, the major challenge is managing its utilization in a proper manner. The purpose of this study is to explore the water\u27s characteristics which is suitable for blue swimming crab fishing. Accordingly, the potential fishing ground around Lancang Island waters can be mapped spatially as an initial effort for species preservation. Geospatial analysis was applied to assess the physical parameters of the existing habitat. The results show that parameters such as MPT, TDS, brightness, phosphate, nitrate, depth and substrate types were remarkably suitable to support the growth of blue swimming crabs. Meanwhile, parameters such as salinity, DO, and temperature show lower quality which implied that the habitat is less suitable. However, the result of weighting and reclassification conclude that Lancang island waters is a decent habitat for blue swimming crab. Catch data show that 40% blue swimming crabs have small carapace size (7-11.83 cm) which is undersized and prohibited by law. Furthermore, about 68% of catch are quite light (30-147 gr) and the sex ratio of males to females was 1:2. It was also revealed that approximately 35% of female species were carrying eggs (BEF/barried female).
Keywords: geospatial, fishing ground, suitability, Lancang Island, blue swimming crab
KEBUTUHAN IKAN BAHAN BAKU INDUSTRI PINDANG DI PELABUHAN PERIKANAN PANTAI TASIK AGUNG REMBANG
Get PDFFishing port plays a vital role in providing fish raw materials (IBB) required for fish processing industries (IPI). The planning and development of IPI at Tasik Agung Rembang Coastal Fishing Port (PPP) rely on information regarding IBB supplies, however little data is available to support the decision. The purpose of this study was to investigate the origin of the IBB in fulfilling IPI demand for Pindang production and assess the IBB actual supplies (type, number, quality). A survey on the availability of IBB was conducted by involving various stakeholders including port officers, fishers, and IPI related entrepreneurs. Data collection consisted of both demand and supplies of IBB, which incorporate types, volume, and quality of fish. The results showed that the total demand for IBB was 824.8 ton/month and consisted of 9 species. However, the existing supplies of IBB only cover 59.5% of it.
Keywords: raw materials, pindang, Tasik Agung fishing por
KEANEKARAGAMAN JENIS IKAN HASIL TANGKAPAN SAMPINGAN (BYCATCH) PERIKANAN RAJUNGAN DI TELUK LASONGKO DAN KENDARI SULAWESI TENGGARA
Get PDFInformation regarding the diversity of bycatch from blue swimming crab fishing operations is important in ecosystem-based management and assessment for Marine Stewardship Council (MSC) certification of crab fisheries in Southeast Sulawesi and Indonesia. However, data limitation becomes major challenges. This study aims to specify the types of bycatch caught from blue swimming crab fishing in Lasongko and Kendari Bay Southeast Sulawesi. This research was conducted in March to September 2019. Data was collected from trap and bottom gillnet fishing by using a purposive sampling method on a monthly basis. Bycatch was categorized into two groups, namely economically valuable and discarded, according to the local fishers’ perception. Information was presented both spatially and temporally. The results show that bycatch consists of 66 species including 41 economically valuable and 26 discarded species. Indices of diversity, evenness and dominance of fish were also discussed to describe the ecological conditions. Accordingly, this bycatch composition is able to support the management and assessment of MSC certification of crab fisheries in Southeast Sulawesi.
Keywords: bycatch, fish diversity, blue swimming crab fisheries, Southeast Sulawesi
STATUS KEBERLANJUTAN PERIKANAN HUHATE BERDASARKAN ASPEK BIOLOGI DI PPI DUFA-DUFA KOTA TERNATE
Get PDFABSTRACTTernate Island lies in a strategic location as it is situated in the middle of the main fishing ground for skipjack (Katsuwonus pelamis) fishing using pole and line (huhate) and fish aggregating devices (FADs). As typical pelagic fish, skipjack that is gathered near the water surface is the younger fish, likewise the ones which are caught around FADs. Therefore, this fishing method has caused serious problem due to the domination of young fish and increasing bycatch and discard. The objective of this research is to analyze the size structure of the fork length, appropriate size for catching, catch composition, bycatch and discard level. Pole and line catch samples were collected in 3 months fromMay to July 2018. The results show that in average, skipjack tuna caught in the study location was undersize. The total catch is predominantly targeted fish which has a higher economic value compared to bycatch and discarded fish. Even though bycatch in the pole and line fisheries are low, reduction efforts are still required. which can be done by sorting bycatch and unwanted fish then discard it into the sea when the fish is still alive.Keywords: biology, pole and line, sustainability status, Ternate City ABSTRAKPosisi Pulau Ternate sangat strategis karena berada di tengah perairan yang menjadi daerah operasi penangkapan cakalang (Katsuwonus pelamis) dengan alat tangkap huhate (pole and line) yang dibantu dengan penggunaan rumpon. Sebagaimana ikan pelagis lainnya, ikan-ikan cakalang yang berkumpul di lapisan permukaan air cenderung tergolong ikan-ikan muda. Oleh karena itu, cakalang yang tertangkap di sekitar rumpon juga cenderung ikan-ikan yang masih muda. Fenomena ini menyebabkan munculnya sebuah masalah besar, yaitu dominasi ikan-ikan muda, selain itu juga sering tertangkap ikan yang bukan target tangkap yang terdiri dari bycatch dan discards. Tujuan dari penelitian ini adalah menganalisis struktur ukuran panjang cagak dan ukuran cakalang layak tangkap, komposisi hasil tangkapan, persentase bycatch dan discards. Sampel hasil tangkapan huhate dikumpulkan selama 3 bulan (Mei sampai Juli 2018). Hasil penelitian menunjukkan bahwa rataan cakalang di lokasi penelitian didominasi ukuran belum layak tangkap. Total hasil tangkapan didominasi ikan target, sementara itu bycatch yang tertangkap memiliki nilai ekonomis yang baik dan tidak ditemukan discards. Walaupun bycatch pada perikanan huhate rendah namun usaha-usaha untuk meminimumkan tetap perlu dilakukan. Salah satu usaha yang bisa dilakukan adalah menyortir hasil tangkapan, ada apabila ada ikan yang akan dibuang ke laut, dilakukan dalam keadaan masih hidup.Kata Kunci: Biologi, huhate (pole and line), status keberlanjutan, Kota Ternat