MONITORING PERIKANAN LEMURU DI PERAIRAN SELAT BALI

Perairan Selat Bali merupakan perairan yang berada diantara Pulau Jawa dan Pulau Bali. Perairan ini memiliki sumber daya perikanan pelagis kecil yang melimpah, terutama ikan lemuru. Pendaratan ikan lemuru di Perairan Selat Bali berpusat di UPT PP (Unit Pelaksana Teknis Pelabuhan Perikanan) Muncar, Kabupaten Banyuwangi. Penelitian ini bertujuan untuk mengetahui jumlah dan ukuran kapal, serta alat bantu penangkapan, Catch Per Unit Effort penangkapan, dan pengelolaan perikanan lemuru di perairan Selat Bali. Penelitian ini dilaksanakan pada tanggal 20 Maret – 21 Mei 2017. Metode yang digunakan adalah observatif. Data yang digunakan adalah data produksi ikan lemuru di UPT PP Muncar dan PPN (Pelabuhan Perikanan Nusantara) Pengambengan dari tahun 1980-2016, data kapal dan alat tangkap dari tahun 2010-2016. Berdasarkan data tersebut, dilakukan perhitungan Maximum Sustainable Yield (MSY) dengan menggunakan model surplus produksi Gordon Scheafer. Jumlah kapal yang digunakan untuk penangkapan ikan lemuru saat ini adalah 326 armada dengan ukuran 10-30 GT (gross ton) yang didominasi oleh kapal ukuran 29/30 GT . Jumlah kapal 10 – 30 GT di Muncar 190 unit, sedangkan di Pengambengan 136 unit. Alat tangkap yang digunakan adalah purse seine dengan jumlah 326 dengan panjang 180 depa ( ± 338 meter) dan mesh size 0,5 inchi, dengan rata – rata kekuatan mesin 120 – 240 PK, lampu 700 - 1200 watt sebanyak 5 – 12 unit / kapal. Nilai CPUE terendah adalah 0,378 ton/trip, dengan rata – rata 3,43 ton/ trip. Nilai MSY yang didapatkan sebesar 25.107,32 ton/tahun, sementara nilai JTB (Jumlah Tangkapan Diperbolehkan) adalah 20.085,86 ton per tahun. Perairan Selat Bali berada dalam otonomi Pemerintah Provinsi Jawa Timur, dan Provinsi Bali. Sehingga pada tahun 1977 dikeluarkan Surat Keputusan Bersama Gubernur Jawa Timur, dan Gubernur Bali, untuk mengatur sistem penangkapan ikan di Perairan Selat Bali. Surat Keputusan Bersama ini diperbarui beberapa kali, kemudian dikeluarkan Peraturan Menteri Kelautan Perikanan dan Kelautan Nomor 68 Tahun 2016 tentang Rencana Pengelolaan Perikanan Ikan Lemuru di Wilayah Pengelolaan Perikanan Republik Indonesia. Bali Strait waters is a located between Java Island and Bali Island. This waters has a lot of pelagic fish resources, especially lemuru fish. Lemuru fisheries centered on UPT PP ( Unit Techic Implementers Fisheries Port) Muncar, Banyuwangi Region. This research goals are to knows the amount of boat and it size, total fishing gears, Catch Per Unit Effort lemuru fisheries on Bali Strait waters, and know the status of lemuru fishings. This research held on 20 Maret – 21 Mei 2017. The method of the research is observative. The data wich used is the data production of lemuru fishing on UPT PP Muncar and PPN (Archipelago Fisheries Port) Pengambengan on 1980 -2016, boats data and fishing gears on 2010 – 2016. Based on the data, calculating MSY using surplus production model by Gordon Scheafer. Total boats for lemuru fishes are 326 boats, wich sizes 10-30 GT (gross tonnage) and dominated by 29/30 GT . The boats 10 – 30 GT in Muncar 190 units, event on Pengambengan 136 units. Fishing gears using purse seine wich 326 units, width 180 depa ( ± 338 meters) and mesh size 0,5 inchi, wich average powers 120 – 240 PK, lightning 700 - 1200 watt 5 – 12 units / boats. The value of lowest CPUE is 0,378 ton/trip, with average is 3,43 ton/trip. The value of MSY is 25.107,32 ton/year, and TAC (Total Allowable Catch) is 20.085,86 ton/year. Bali Strait waters under otonomy by East Java and Bali Government. So, in 1977 formed GRC (Government Regulatory Compliance) by East Java and Bali Government to ruled fisheries systems on Bali Strait waters. This GRC renew few times, and then formed Regulation by Minister of Marine and Fisheries number 68 year 2016 about Plans Management Fisheries of Lemuru Fish in Indonesia Region Management.

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The status of Japanese fisheries relative to fisheries around the world

ICES Journal of Marine Science ◽

10.1093/icesjms/fsx002 ◽

2017 ◽

Vol 74 (5) ◽

pp. 1277-1287 ◽

Cited By ~ 22

Author(s):

Momoko Ichinokawa ◽

Hiroshi Okamura ◽

Hiroyuki Kurota

Keyword(s):

Maximum Sustainable Yield ◽

Production Model ◽

Structured Population Model ◽

Total Allowable Catch ◽

Quick Recovery ◽

Stock Status ◽

Surplus Production Model ◽

The Status ◽

Stock Recruitment ◽

Age Structured

We present the first quantitative review of the stock status relative to the stock biomass (B) and the exploitation rate (U) that achieved the maximum sustainable yield (MSY) (BMSY and UMSY, respectively) for 37 Japanese stocks contributing 61% of the total marine capture production in Japan. BMSY and UMSY were estimated by assuming three types of stock-recruitment (S-R) relationships and an age-structured population model or by applying a surplus production model. The estimated stock status shows that approximately half of the stocks were overfishing (U/UMSY > 1), and approximately half of the stocks were overfished (B/BMSY < 0.5) during 2011–2013. Over the past 15 years, U decreased and B slightly increased on average. The rate of decrease in the U of the stocks managed by the total allowable catch (TAC) was significantly greater than that of the other stocks, providing evidence of the effectiveness of TAC management in Japan. The above statuses and trends were insensitive to the assumption of the S-R relationship. The characteristics of Japanese stocks composed mainly of resources with relatively high natural mortality, i.e. productivity, suggest that Japanese fisheries have great potential of exhibiting a quick recovery and increasing their yield by adjusting the fishing intensity to an appropriate level.

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RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v8i2.15837 ◽

2017 ◽

Vol 8 (2) ◽

pp. 713-728

Author(s):

Yulia Estmirar Tanjov ◽

Roza Yusfiandayani ◽

. Mustaruddin

Keyword(s):

Fishing Effort ◽

Maximum Sustainable Yield ◽

Pelagic Fish ◽

Purse Seine ◽

Sustainable Yield ◽

Catch Per Unit Effort ◽

Small Pelagic Fish ◽

Bay Area ◽

Fisheries Resources ◽

The Status

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.

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RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.28930/jitkt.v8i2.15837 ◽

2017 ◽

Vol 8 (2) ◽

pp. 713

Author(s):

Yulia Estmirar Tanjov ◽

Roza Yusfiandayani ◽

. Mustaruddin

Keyword(s):

Fishing Effort ◽

Maximum Sustainable Yield ◽

Pelagic Fish ◽

Purse Seine ◽

Sustainable Yield ◽

Catch Per Unit Effort ◽

Small Pelagic Fish ◽

Bay Area ◽

Fisheries Resources ◽

The Status

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.

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Application of Surplus Production Model to the Yellowfin Tuna Thunnus albacares in the northern and western parts of Aceh waters

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/869/1/012072 ◽

2021 ◽

Vol 869 (1) ◽

pp. 012072

Author(s):

A Rahmah ◽

I Mardhatillah ◽

A Damora ◽

M Muhammad ◽

N Nurfadillah

Keyword(s):

Economic Value ◽

Maximum Sustainable Yield ◽

Yellowfin Tuna ◽

Production Model ◽

Purse Seine ◽

Thunnus Albacares ◽

Catch Per Unit Effort ◽

Surplus Production ◽

Surplus Production Model ◽

Banda Aceh

Abstract Yellowfin tuna Thunnus albacares is one of pelagic fish that has high potential and economic value in Banda Aceh. Utilization of this resource in Banda Aceh is using purse seine units, with the number of purse seines continuously increasing. Therefore, management needs to be done so that optimal productivity can be maintained. This study discusses the estimation of catch and effort at maximum sustainable yield (MSY) of yellowfin tuna based on catch per unit effort (CPUE) and purse seine production in Banda Aceh during 2013-2018. Mathematical analysis was carried out using the equilibrium approach with the Schaefer model. The highest catch of yellowfin tuna reached 191 tons (July) and the average CPUE for yellowfin tuna was 0.796 tons/trip with CMSY of 2,482 tons/year and EMSY of 2,765 trips/year. From 2015 to 2018, the trend of biomass continued to decline and overfishing occurred during this period.

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Catch per unit effort (CPUE) periode lima tahunan perikanan pukat cincin di Kota Manado dan Kota Bitung

JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP ◽

10.35800/jitpt.2.1.2015.8292 ◽

2015 ◽

Vol 2 (1) ◽

Author(s):

Helmy A. Wurlianty ◽

Johny Wenno ◽

Mariana E. Kayadoe

Keyword(s):

Fishery Management ◽

Pelagic Fish ◽

Purse Seine ◽

Catch Per Unit Effort ◽

Maximum Production ◽

Unit Effort ◽

Fishing Gears ◽

Fishing Capacity ◽

The City ◽

Purse Seine Fishery

ABSTRACT Overfishing is due to increasing fishing capacity through increasing the size of fishing gears and vessels. This research aims to analyze the development of the five-year CPUE and maximum production of purse seine fishery in Manado and Bitung Cities periodically and determine changes in fishing capacity and its influence on CPUE. The results of this study are expected to provide information in the purse seine fishery management in the city of Manado and Bitung. The results of the analysis is the highest CPUE for Bitung occurred in the period 2005-2009, the lowest CPUE occurred in the period 2008-2012 and the highest CPUE for Manado occurred in the period 2008-2012, the lowest CPUE occurred in the period 2006-2010. The highest maximum production Bitung occurred in the period 2008-2012 amounted to 22.083 tons and maximum production of Manado occurred in the period 2006-2010 amounted to 7.855 tons. The number of vessels and their sizes in each five-year period there increased in line with the increase of production. Keywords: catch, effort, purse seine, pelagic fish. ABSTRAK Penangkapan ikan secara berlebihan terjadi karena meningkatnya kapasitas tangkap yaitu melalui penambahan ukuran alat tangkap dan ukuran kapal. Penelitian ini bertujuan untuk menganalisis perkembangan lima tahunan CPUE maupun produksi maksimum perikanan pukat cincin di Kota Manado dan Kota Bitung secara periodik dan mengetahui perubahan kapasitas tangkap dan pengaruhnya terhadap CPUE. Hasil penelitian ini diharapkan dapat memberikan informasi dalam pengelolaan perikanan pukat cincin di Kota Manado dan Kota Bitung. Hasil analisis yang diperoleh adalah CPUE tertinggi untuk Kota Bitung terjadi pada periode tahun 2005-2009, CPUE terendah terjadi pada periode tahun 2008-2012 dan CPUE tertinggi untuk Kota Manado terjadi pada periode tahun 2008-2012, CPUE terendahnya terjadi pada periode tahun 2006-2010. Produksi maksimum tertinggi Kota Bitung terjadi pada periode tahun 2008-2012 sebesar 22.083 ton dan produksi maksimum Kota Manado terjadi pada periode tahun 2006-2010 sebesar 7.855 ton. Jumlah kapal dan ukuran kapal pada setiap periode lima tahunan meningkat seiring dengan peningkatan produksi. Kata-kata kunci: hasil tangkapan, upaya, pukat cincin, ikan pelagis

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Qarun Lake fisheries; Fishing gears, Species composition and Catch per unit effort

Egyptian Journal of Aquatic Biology and Fisheries ◽

10.21608/ejabf.2014.2204 ◽

2014 ◽

Vol 18 (2) ◽

pp. 39-49

Author(s):

Sabry El-Serafy ◽

Alaa El-Haweet ◽

Azza El-Ganiny ◽

Alaa El-Far

Keyword(s):

Species Composition ◽

Catch Per Unit Effort ◽

Unit Effort ◽

Fishing Gears ◽

Lake Fisheries

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Sustainable exploitation of temperate fish stocks

Biology Letters ◽

10.1098/rsbl.2009.0516 ◽

2009 ◽

Vol 6 (1) ◽

pp. 124-127 ◽

Cited By ~ 10

Author(s):

Henrik Sparholt ◽

Robin M. Cook

Keyword(s):

Species Interactions ◽

Fishery Management ◽

Regional Scale ◽

Single Species ◽

Fishing Effort ◽

Theoretical Concept ◽

Maximum Sustainable Yield ◽

Production Model ◽

The Status ◽

Long Time

The theory of maximum sustainable yield (MSY) underpins many fishery management regimes and is applied principally as a single species concept. Using a simple dynamic biomass production model we show that MSY can be identified from a long time series of multi-stock data at a regional scale in the presence of species interactions and environmental change. It suggests that MSY is robust and calculable in a multispecies environment, offering a realistic reference point for fishery management. Furthermore, the demonstration of the existence of MSY shows that it is more than a purely theoretical concept. There has been an improvement in the status of stocks in the Northeast Atlantic, but our analysis suggests further reductions in fishing effort would improve long-term yields.

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Penentuan Status Pemanfaatan dan Pengelolaan Ikan Tongkol (Auxis rochei) yang Tertangkap di Perairan Bolaang-Mongondow Selatan dan Bolaang-Mongondow Timur Sulawesi Utara

d'CARTESIAN ◽

10.35799/dc.9.1.2020.25726 ◽

2020 ◽

Vol 9 (1) ◽

pp. 1

Author(s):

Ladi Beatriex Deeng ◽

Hanny A H Komalig ◽

John S Kekenusa

Keyword(s):

Maximum Sustainable Yield ◽

Production Model ◽

Model Data ◽

Biological Resource ◽

Surplus Production ◽

North Sulawesi ◽

Surplus Production Model ◽

The Status ◽

Level Of Effort

LADI BEATRIEX DEENG. Determination of Utilization and Management Status of Bonito (Auxis Rochei) Caught in South Bolaang-Mongondow and East Bolaang-Mongondow Waters of North Sulawesi. Supervised by Mr. JOHN S. KEKENUSA as main supervisor, and Mr. HANNY A. H. KOMALIG as co-supervisor.Bonito (Auxis rochei), needs to be managed properly because even though it is a renewable biological resource, it can experience overfishing, depletion or extinction. One way to approach the management of fish resources is by modeling. The analysis was carried out aiming to determine the status of utilization and management of bonito and maximum sustainable yield (MSY) using the Surplus Production Model. Data on catching and efforts to catch bonito is collected from the Marine and Fisheries Service of South Bolaang-Mongondow Regency and East Bolaang-Mongondow of North Sulawesi. The surplus production model that can be used to determine the catch of bonito is the Schaefer model. The maximum sustainable catch of bonito is 869.556 tons per year, obtained at the level of catching effort of 933 trips. For 2017 the level of utilization is 64.95 % so that production can still be increased, with a level of effort of 73.74 % indicating the level of effort that is not optimal and can still be increased. Keywords : Bonito, Surplus Production Model, South Bolaang-Mongondow and East Bolaang-Mongondow Regency

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Modeling no-take marine reserves in regulated fisheries: assessing the role of larval dispersal

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f08-150 ◽

2008 ◽

Vol 65 (11) ◽

pp. 2509-2523 ◽

Cited By ~ 11

Author(s):

Carey R. McGilliard ◽

Ray Hilborn

Keyword(s):

Larval Dispersal ◽

Marine Reserves ◽

Dispersal Distance ◽

Maximum Sustainable Yield ◽

Catch Per Unit Effort ◽

Long Distance ◽

Total Allowable Catch ◽

Dispersal Distances ◽

The Impact

We explored the effects of larval dispersal distance on the impact of no-take marine reserves (NTMRs) implemented in fisheries with catch regulations. NTMRs exist in many fisheries with harvest regulated by annual catch limits. In these fisheries, catch is taken from outside NTMRs, potentially resulting in reduced abundance outside NTMRs and an overall reduction in catch. We used a spatial model with two life stages (larvae and adults) to evaluate the effects of larval dispersal distance for fisheries managed by a total allowable catch (TAC) and an NTMR. We examined effects of the timing of density-dependent mortality in relation to larval movement. Abundance reached similar values for populations with long and short larval dispersal distances. Catch declined substantially for stocks with short larval dispersal distances. When larval dispersal distances were long, catch declined to values below maximum sustainable yield (MSY), but stabilized. Catch per unit effort (CPUE) declined to 9% of CPUE at MSY for stocks with short distance larval dispersal after the implementation of an NTMR; with long distance larval dispersal, CPUE declined to approximately 50% or less of the CPUE at MSY. The CPUE did not reflect trends in abundance after the implementation of an NTMR.

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OVERFISHING AND OVERCAPACITY SMALL SCALE FISHERIES IN SEMARANG CITY

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v11i2.24817 ◽

2019 ◽

Vol 11 (2) ◽

pp. 427-435

Author(s):

Jamaludin Malik ◽

Achmad Fahrudin ◽

Dietriech Geoffrey Bengen ◽

Taryono Khodiron

Keyword(s):

Sustainable Management ◽

Maximum Sustainable Yield ◽

Utilization Rate ◽

Small Scale ◽

Fishing Gear ◽

Catch Per Unit Effort ◽

Small Scale Fisheries ◽

Surplus Production ◽

Capacity Level ◽

The Status

Fisheries in Semarang City are dominated by small-scale fisheries. This is indicated by the use of the largest fishing fleet of 10 gross tons operating near the coast. This study aims to analyze the status of small-scale fisheries in Semarang City for sustainable management. Sustainable management is management that guarantees the availability of natural resources and environmental services for future generations. The study was conducted for three months, namely September-November 2018 in the coastal waters of Semarang City, which was part of the Fisheries Management Region (WPP) 712. The method used in this study is the analysis of time series surplus production, namely data from the catch (ton/year) and the number of fishing gear (unit) within 10 years (2007-2016), to calculate the catch per-unit effort (CPUE), maximum sustainable yield (MSY), optimum effort (fopt), utilization rate (TP) and capacity level (TK). This study was obtained results of a downward trend in CPUE; the existing fishery catch or production in 2016 has exceeded the MSY value is 479 tons/year (Schaefer) and 439.11 tons/year (Fox); utilization rate of more than 100% which is 108-127% (Schaefer) and 118-138% (Fox), so that small-scale fisheries in Semarang City are at the level of over-exploited. Based on the fopt analysis, the number of fishing gear used (fexisting) has exceeded the optimum effort with a fishing capacity exceeding 100%, so that small-scale fisheries in Semarang City have experienced overcapacity.

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