A fishery in distress: An analysis of the small pelagic fishery of Ghana

Marine Policy ◽  
2021 ◽  
Vol 129 ◽  
pp. 104500
Author(s):  
Berchie Asiedu ◽  
Paulina Okpei ◽  
Francis Kofi Ewusie Nunoo ◽  
Pierre Failler
Keyword(s):  
Pelagic Fishery

scholarly journals PERIKANAN PELAGIS KECIL DI DAERAH TELUK: STUDI KASUS DI TELUK SAPE NUSA TENGGARA BARAT

2002 ◽  
Vol 4 (1) ◽  
Author(s):  
Suadi Suadi
Keyword(s):  
The State ◽  
Fishing Ground ◽  
Fisheries Resources ◽  
Intensive Exploitation ◽  
Integrated Policy ◽  
Resources Exploitation ◽  
Relationship Of ◽  
The Relationship ◽  
Pelagic Fishery ◽  
Pelagic Fisheries

The aims of this research were to know the state of small pelagic fishery and social economic aspect of resources exploitation. To examine these issues, the research combined survey and descriptive analytic methods. Gordon-Schaefer model was applied to analyze the state of fishery and analytical descriptive to explained the relationship of the phenomena's. Data collection was based on indepth interview and recording of District Fishery Service's. Samll pelagic fisheries that been analyzed were anchovies (Stolephorus sp.), squids (Loligo sp.), and mackerels (Rastrelliger sp.).There are two main problems of fisheries in the area, firstly, the conflict on coastal zone between marine capture fisheries and mariculture. The second one is the intensive exploitation of fisheries resources. Pelagic fisheries at Sape Bay have been exploited above maximum TAC mainly 80% of MSY. MSY of anchovies (Stolephorus sp.) reached 2324,9 ton at number of effort 56534 trip and MEY 2172,3 ton at number of effort 42144 trips. MSY of squids (Loligo sp.) is 455,0 ton at number of effort 12183 trip and MEY 449,0 ton at number of effort 10780 trips equal to Bagan Perahu  trips. The model was not applicable to predict the MSY and MEY of mackerels (Rastrelliger sp.). The continuing increase of effort will depleted the stock and decreased economic rent. In addition, the increasing of competition on fishing ground with pearl culture, have resulted fishermen stress. The integrated policy and management are needed to solve these problems and to avoid social riots. 

Island in the Stream: Oceanography and Fisheries of the Charleston Bump

2001 ◽  
Keyword(s):  
Gulf Stream ◽  
Seasonal Changes ◽  
Distribution Patterns ◽  
Xiphias Gladius ◽  
Charleston Bump ◽  
Pelagic Fishery ◽  
Very High

<em>Abstract.</em>—The Gulf Stream off the east coasts of Florida, Georgia, and the Carolinas is one of the U. S. pelagic fishery regions in which particularly high swordfish discard rates were reported after a regulation limiting the landings of swordfish less than 25 kg whole weight went into effect in 1991. Swordfish <em> Xiphias gladius </em>fishing and catch locations from mandatory longline logbooks for the years 1991 through 1995 were used to explore the distribution patterns of swordfish discard rates in this region. Every 0.1 degree square of latitude and longitude was assigned a discard rate category (very high, moderate, low, none) for each month of the year based on the percentage of the swordfish catch that was discarded in that month over the five year period. Swordfish discard rates varied with latitude and season. The greatest seasonal changes were seen off the Carolinas where discard rates increased in the fall along with changes in fishing patterns.

scholarly journals The small pelagic fishery of the Pemba Channel, Tanzania: What we know and what we need to know for management under climate change

2020 ◽  
Vol 197 ◽  
pp. 105322 ◽  
Author(s):  
Baraka Sekadende ◽  
Lucy Scott ◽  
Jim Anderson ◽  
Shankar Aswani ◽  
Julius Francis ◽  
...  
Keyword(s):  
Climate Change ◽  
Pelagic Fishery

scholarly journals Underwater observations of seal–fishery interactions and the effectiveness of an exclusion device in reducing bycatch in a midwater trawl fishery

2016 ◽  
Vol 73 (3) ◽  
pp. 436-444 ◽  
Author(s):  
Jeremy M. Lyle ◽  
Simon T. Willcox ◽  
Klaas Hartmann
Keyword(s):  
Mortality Rates ◽  
Video Monitoring ◽  
Underwater Video ◽  
Fishing Activity ◽  
Midwater Trawl ◽  
Trawl Fishery ◽  
Space And Time ◽  
Operational Factor ◽  
Fishery Interactions ◽  
Pelagic Fishery

Interactions between seals and midwater trawl operations in the Australian Small Pelagic Fishery are common and can be lethal. The nature of interactions and effectiveness of a seal exclusion device (SED) in mitigating lethal interactions was assessed using underwater video. Recent fishing activity and the phase of the trawl operation significantly influenced interaction rates; interactions increased with the amount of recent trawl activity and were highest while the trawl was being set. Most seals accessed the trawl via the net entrance and exited via an escape opening located at the base of the SED. The size of the escape opening was the only operational factor that influenced mortality rates — simply enlarging the escape hole reduced lethal interactions by 79%. However, since all deceased seals dropped out of the net before they were brought on board, they would have gone unobserved without video monitoring. Limiting the concentration of fishing activity in space and time and refinement of the SED design, in particular to address dropouts, is recommended if mortality rates are to be reduced.

scholarly journals MODEL BIOEKONOMI EKSPLOITASI MULTISPESIES SUMBER DAYA PERIKANAN PELAGIS DI PERAIRAN SELAT BALI (Bio-economic Model of Multispecies Exploitation of Pelagic Fishery Resources in the Bali Strait)

2013 ◽  
Vol 2 (2) ◽  
pp. 141
Author(s):  
N. Zulbainarni ◽  
M. Tambunan ◽  
Y. Syaukat ◽  
A. Fahrudin
Keyword(s):  
Key Words ◽  
Economic Efficiency ◽  
Economic Model ◽  
Analytical Methods ◽  
Fishing Effort ◽  
Purse Seine ◽  
Fishery Resources ◽  
Optimal Value ◽  
Pelagic Fishery ◽  
Purse Seine Fishery

<p>Bali Strait has potential abundance of pelagic fishery resources such as Indonesian oil sardine (lemuru), frigate mackerel (tongkol), scad mackerel (layang), short-bodied mackerel (kembung) and others which can be caught mostly using purse seine. Fishery resources are combined and also known asmultispecies; therefore this research aimed to analyze the model of bio-economic multispecies exploitation of pelagic fishery resources in Bali Strait. The analytical methods that used in this research were estimated dynamic model of Walters and Hilborn (1976) and analysis of bio-economic model. The results showed that actual production of exploitation of pelagic fishery resources in Bali Strait, was lower than the rate of sustainable production especially Indonesian oil sardine and short-bodied mackerel. Production and fishing effort were below the actual optimal value. The management of pelagic fishery resources in Bali Strait did not show a good level of economic efficiency. Thus the exploitation of pelagic fishery resources in Bali Strait using purse seine could still be increased.</p><p><strong>Key words:</strong> bio-economic, multispecies, optimal</p>

scholarly journals ANALISIS STRATEGI PENGEMBANGAN PERIKANAN PELAGIS DI KABUPATEN BANYUASIN PROVINSI SUMATERA SELATAN

2020 ◽  
Vol 1 (1) ◽  
pp. 63
Author(s):  
Dwi Rosalina
Keyword(s):  
Development Strategy ◽  
Swot Analysis ◽  
Pelagic Fish ◽  
Optimum Allocation ◽  
Scoring Method ◽  
Long Line ◽  
Analysis Strategy ◽  
Management Effort ◽  
Pelagic Fishery ◽  
Pelagic Fisheries

Kajian ini merupakan analisa pengembangan strategi perikanan pelagis di Kabupaten Banyuasin. Kajian ini bertujuan untuk (i) menentukan teknologi penangkapan ikan pelagis yang efektif, efisien dan berkelanjutan berdasarkan aspek biologi, teknis, sosial, ekonomi, dan keramahan lingkungan; (ii) menentukan alokasi jumlah unit penangkapan ikan pelagis yang optimum; dan (iii) menentukan strategi pengembangan alat tangkap ikan pelagis. Kajian ini menggunakan metode pemeringkatan (scoring), analisa optimum, analisa finansial usaha serta analisa SWOT. Hasil kajian menunjukkan bahwa rawai hanyut merupakan teknologi penangkapan ikan yang relatif lebih efektif, efisien dan berkelanjutan daripada alat tangkap jaring insang hanyut dan bagan tancap. Alokasi unit penangkapan rawai hanyut yang direkomendasikan sebanyak 51 unit. Hasil analisis kelayakan usaha alat tangkap rawai hanyut di Kabupaten Banyuasin menunjukkan keuntungan Rp. 18.767.666, nilai NPV Rp. 55.855.075, Net B/C sebesar 2,22 dan nilai BEP untuk nilai produksi per tahun Rp. 39.055.258 dan volume produksi per tahun 23.669 kg, nilai ROI 41 %, nilai IRR 48 %. Strategi pengembangan alat tangkap pelagis kecil di Kabupaten Banyuasin yangdisarankan adalah (i) optimalisasi usaha perikanan pelagis; (ii) pengembangan usaha perikanan pelagis di jalur 6 – 10 mil laut; (iii) peningkatan manajemen usaha perikanan pelagis; (iv) peningkatan skala usaha armada penangkapan ikan pelagis; dan (v) pembenahan fasilitas sarana dan prasarana perikanan.Title: Analysis of Strategy for Pelagic Fishery Development in the Banyuasin Regency of South Sumatera Province This research is an analysis strategy for pelagic fishery development in the Banyuasin Regency of South Sumatera Province. The objectives of the research (i) to determine more effective, efficient and sustainable fishing technology for pelagic fish based on biological, technical, social, economic and environment aspects; (ii) to assess optimum allocation for pelagic fish catching unit; and (iii) to determine development strategy of pelagic fisheries. This research used scoring method, optimum allocation, financial and SWOT analysis. This research results indicated that drift long-line fishing technology is more effective, efficient and sustainable than drift gillnet and lift-net. Suggested numbers of optimum allocation of fishing unit consist of 51 unit drift long-line. Output of feasibility analysis of drift long-line fishery indicated profit of IDR 18,767,666, NPV value was IDR 55,855,075, Net B/C was 2.22, the BEP value was IDR 39,055,258 that equal to production 23,669 kg, the ROI and IRR value were 41% and 48. This research suggested following development strategies of pelagic fisheries in Banyuasin Regency namely (i) optimization of drift long-line for pelagic fishery, (ii) focussing development pelagic fish fishery in 6-12 mile zone; (iii) increasing management effort of fisheries business; (4) revitalization of fisheries infrastructures and facilities; and (v) empowering scale of fishing fleet and its technology.

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