Perbaikan Konstruksi Bubu Elver Skala Laboratorium (Correction of Elver Trap Contruction in Laboratory Scale)

PVC trap is used by fisherman in Java Island, southern waters to capture elver, or juvenileeels measuring < 10 gr. The problems are that trap catches too less and elver in injured condition,while buyers need a lot of good elvers for cultivating. This study tried to fix a trap construction sothat function more effective and doesn't hurt elver. All experiments were conducted in the FishingGear Laboratory, Bogor Agricultural University. Three sections of traps were examined were therear cover of trap construction, entrance of trap construction and application two doors of traps.Furthermore, new traps made by three criteria were obtained. The entire test was conducted in theexperimental tank containing between 30-100 elvers. The test was done as much as 20-25 timeswith 20 minutes soaking time. The results showed that more elvers enter the trap which does notseal, the entrance was made from nets and had two doors of the trap. The construction trap basedon three criteria was more effective which could trap 355 elvers or 6.12 times more than thefisherman's trap (58 elvers)

Modification And Reengineering Of Electronic Fish Aggregating Device AS A Fishing Tools Based On Led Illuminance

Fish Aggregating Devices (FADs) is generally made from foliage like a leaf of coconut, palm and nut, but with the development of marine and fishing technology, the FADs could be made electronic ally. Electronic FADs had been developed by using light and sound as an attractor, and was able to aggregate fish but the catch harvest was still relatively low compared with lift net lamp. In this paper we describe the recent development of electronic FADs. The new electronic FADs has 120 watts total power of LEDs as attractor, 12V 12Ah battery as the energy resources, and HDPE as the body of FADs. The lighting of the new is either blue – red light color (RE1) or red-white light color (RE2). The two kinds of lighting are tested and compared and its light distribution underwater case measured in term of the value of luminous flux. The results showed that new FADs work well in the water with light penetration of RE1 was better than RE2

Responsible Fisheries Management of Mini Purse Seine in the Lampung Bay Area

Lempasing is a Coastal Fishing Port (CFP) which located in Bandar Lampung. It is one of the centers of fisheries activities in the city. One of the fishing gear which operated by most of fishermen in Lempasing is mini purse seine. Mini purse seine fishing activities in the Lampung Bay Area and Lempasing CFP is not in accordance with the conditions of the surrounding waters area. The research was conducted in the Lampung Bay Area and Lempasing CFP, Lampung. This study aims to: 1) determine the status of fisheries resources utilization, 2) to describe the dominant fish caught by mini purse seine. Analysis methods were used in this study namely: 1) Fishing Power Index (FPI), Catch Per Unit Effort (CPUE), and Maximum Sustainable Yield (MSY) to determine the status of fisheries resource utilization. The dominant small pelagic fishes caught were scad fish Selaroides sp., mackerel fish Rastrelliger sp., longnose trevally fish Carangoides chrysophrys. The result showed that Fox model was the best fits models with estimated maximum sustainable yield of 15.5 ton and fishing effort of 992 trip/year for mini purse seine. The longnose trevally fish in Lampung bay area in do not exceeded the optimal catch fish condition can be used to sustainably. In these condition is necessary to wisely manage and setting the catches to not exceed the allowable catch of the small pelagic fish, so the stock of small pelagic fish in the Lampung Bay Area can be used sustainably

Light Emitting Diode (Led) Hijau Dan Pengaruhnya Terhadap Pengurangan Bycatch Penyu Pada Perikanan Gillnet Di Perairan Paloh (Green Light Emitting Diode (Led) and Its Effect on Sea Turtle Bycatch Reduction of Gillnet Fisheries in Paloh Waters)

Bycatch problem is a global issue and can be a driver of marine megafauna declines in the world, such as sea turtle, where is the animal's status as endangered species. Green Light Emitting Diode (LED) is known as an innovative technology to reduce sea turtle bycatch without reduce target catch effectively. The use of green LED in order to reduce sea turtle bycatch in gillnet fisheries was carried out in Paloh Coast, West Borneo during August to October 2015. Experiment performed a total of 20 settings with gillnet fleets operate two units simultaneously, ie gillnet control (without LED lights) and gillnet experiment (with LED lights). Turtles caught predominantly were in the juvenile phase as 57.14% and the potential location of capture sea turtle bycatch in station 2 (1˚52' - 1˚56' LU and 109˚14' - 109˚18' BT). The results, showed that the green turtle (Chelonia mydas) were caught of 7 turtles, were captured by control gillnet 6 turtles with an CPUE 0.29 ± 0.03 Turtle/E, while by experimental gillnet 1 turtle with an CPUE by 0,04 ± 0,009 Turtle/E. The used of green LED light was significantly reduce sea turtle bycatch of 85% without decreasing target catch

Penguatan Cahaya Pada Bagan Menggunakan Reflektor Kerucut Sebagai Upaya Meningkatkan Hasil Tangkapan Cumi-cumi (Light Strengthening on Lift Net with Conical Reflectors to Squid Catch Improvement)

Study of light strengthening on lift net with conical reflectors was conducted in Kao Bay waters. Three units of lift net were operated 14 nights at the full moon condition. Every lift nets were completed with three different kind of lamp cover, called tudung, reflector αr23,3o and αr32,6o. Fishing operation time of lift net were divided into two intervals of time i.e 20.00-01.00 and 01.00-05.00 WIT (East Indonesian Timezone). Total yield of lift net with reflector αr23,3o was 5.774 kg (41,45%), while that of the lift net with reflector αr 32,6o was 4.977 kg (35,72%), and that of total yield of the lift net with tudung was 3.180 kg (22,83 %). Fishing operation time of lift net at 01.00-05.00 WIT (East Indonesian Timezone) produced 12.661 kg (91 %) weight of total catch, higher than fishing operation of lift net at 20.00-01.00 am that produced 1.270 kg (9 %) weight of total catch. However, statistical analysis concluded that design of the reflector did not significantly affect the catch per trip (Pvalue > 0,05) while fishing time significantly affected the catch per trip (Pvalue < 0,05)

MODEL PENGEMBANGAN PERIKANAN TANGKAP BERBASIS MINAPOLITAN DI KABUPATEN GORONTALO UTARA

Sumberdaya Perikanan di Gorontalo Utara sangat besar. Potensi Manajemen Perikanan Daerah dari Laut Sulawesi ke Samudera Pasifik mencakup sekitar 590,970 ton ikan pelagis, termasuk 175.260 ton pelagis besar, 384,750 ton pelagis kecil dan jenis ikan lainnya sekitar 30,960 ton. Di sisi lain, pemanfaatan sumberdaya perikanan masih minimum hanya 46%. Pemerintah Gorontalo Utara menetapkan perikanan tangkap sebagai program utama untuk meningkatkan kesejahteraan masyarakat untuk meminimalkan kurangnya pemanfaatan sumberdaya perikanan. Pemerintah harus menyadari situasi ini untuk merumuskan dan memutuskan setiap kebijakan. Kebijakan yang telah diterapkan di tahun terakhir di Gorontalo Utara adalah Minapolitan yang diselenggarakan oleh Departemen Kelautan dan Perikanan Indonesia bergabung dengan Pemerintah Daerah. Jadi, penelitian pengembangan penangkapan perikanan berdasarkan Model minapolitan diperlukan untuk merancang model kebijakan sebagai panduan untuk memutuskan kebijakan perikanan tangkap. Metodologi yang digunakan dalam penelitian ini adalah analisis produksi surplus untuk menganalisis sumber daya ikan yang tepat untuk menangkap ikan, dan analisis SEM (Struktur Equation Modeling). Hasil penelitian menunjukkan bahwa pemanfaatan sumber daya perikanan masih kurang di bawah MSY (Maximum Sustainable Yield). Beberapa program yang harus dikembangkan adalah purse seine, tuna hand line, bagan, garis tangan, dan payang. Tujuan dari kebijakan minapolitan adalah menciptakan pertumbuhan ekonomi lokal dan meningkatkan produksi perikanan penangkapan dan menjamin kualitas perikanan tangkap.Fishery resources at NorhGorontalo disrict was huge. The potential of Fishery Management Area from Laut Sulawesi to Pasicific Ocean includes around 590.970 ton of pelagicdivided into175.260 ton large pelagic, 384.750 ton small pelagic and the other kind of fish around 30.960 ton. On the other hand, the utilization of fishery resources still minimun that was only 46%. Government at North Gorontalo made capture fisheris as a main program to improve society welfare to minimize the lack of fishery resources utilization. The government should be aware of this situation to formulate and decide each policy. Policy that has been applied in this recent year in NorthGorontalo district was Minapolitan and it was held by the Indonesia Ministry of Marine and Fishery joined with Local Government. So, research of development fishery capture based minapolitan model was needed to designed a policy model as a guide to decide a capture fisheries policy. Methodology that using in this research was surplus production analysis to analyze the fish resource, proper tools to capture fish analysis, and SEM (Structure Equation Modeling) analysis. The result of this research showed that the utilization of fishery resources still lack under MSY (Maximum Sustainable Yield). Some of programs that should be developed were purse seine, hand line tuna,liftnet, hand line, and payang. The objective of minapolitan policy was creating local economic growth and increasing capture fisheries production and guarantee the quality of capture fisheries

Fish Behavior on Fisheries Boat Lift Net (Bagan Petepete) by Using Led Lights

Research on fish behavior in boat lift net fisheries (bagan petepete) equipped with LED light is very important since the similar research is very limited conducted in Indonesian waters. The purpose of this study was to understand the LED light distribution and its impact on the fish behavior around the LED light. This study was conducted in the laboratory of Simulation Workshop and Navigation, Pangkep State Polytechnique of Agricultural and fishing experiment was done in Barru District waters, Makassar Strait, South Sulawesi. The light intensity was measured by a digital lux meter and under water lux meter, while fish behavior was observed by side scan sonar color. Light intensity analyses showed that the distribution of 80 watts LED light was mostly focused with 1096 lux with an angle168°. Fishes approached the light at 5-10 m and 20-30 m water depth from all directions after all lights were turned on. Fishes in smaller groups and higher density concentrated around the light when only one lamp was turned on. After catch processing, some fishes left the lighting area and others still stayed in the lighting area

Impact of Fish Aggregating Device on Sustainable Capture Fisheries

The use of rumpon, a type of Fish Aggregating Device (FAD), has been traditional in Indonesia, particularly in eastern Indonesia waters since time immemorial (Reuter 1938; Nasution et al. 1986; Monintja 1976). The traditional tuna fishermen in Mamuju waters in the Province of South Celebes have used rumpons for a long time, although there is no record when the device was first used (Nasution et al. 1986). Any structure designed or made to attract free schooling fishes: rumpon (Indonesia), tendak (West Java), uncang (Sumatera), rompong (Sulawesi), payaos (Philippines). Local fishermen claimed that they learned how to construct the rumpon from their ancestors, but did not apply the device extensively until 1985 because of the low profitability of catching the swift swimming fishes. The use of rumpon for fishing activities has improved the effectiveness and efficiency of several fishing gear. However, the Fast growing of rumpon utilization has raised a great concern on the sustainability of the fish resources. The rumpon management for responsible fisheries should consider the aspects of biology, location, environment, fishing gear, social and economic. The existing condition of rumpon has not fully understood and its usage in a responsible manner further elaboration also needed. For that purpose, the information of the past and present situation of rumpon in Indonesia will be important for further management. The main data were collected and compiled from various references, annual report of the Directorate General of Fisheries and research report of Central Research Institute for Fisheries. Additional data were made available from local fisheries agencies or related institutions. Structure of the rumpon installed in the Provinces of North Sumatera, West Sumatra, Lampung, West Java, East Java, North Celebes, Central Celebes, South Celebes, Maluku and Papua are given in detail. There are 2 types of rumpon : the deep sea rumpon and shallow water rumpon. The differences among the rumpons in those areas are mostly found in material of mooring line, shape and material of float and structure of the attracting components. The mooring line is mostly made of polyethylene of 12-25 mm in diameter or nylon of 5-10 mm in diameter. There are wide variations of shape of floats. Generally they are divide into pontoon type or box shape made of steel and raft type made of bamboos. Attractors are made of coconut leaves, nipah leaves and pinag leaves. Some attractors are attached to the mooring line and the others are hung down from the float. They are operated in wide range of water depth from 20 to 1500 m. The fishing ground conditions, bottom topography and bottom configuration are among the factors considered for the rumpon design and construction. The differences in construction are mainly due to the rumpon location, target species in each area and the fishing gear applied