scholarly journals KAJIAN DESAIN KAPAL PUKAT CINCIN YANG BERPANGKALAN DI PUSAT PENDARATAN IKAN DESA ERI KOTA MADYA AMBON

ARIKA ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 51-58
Author(s):  
Obed Metekohy
Keyword(s):  

Keselamatan nelayan dalam  melaut  untuk menangkap ikan adalah hal utama yang harus dipertimbangkan  bagi seorang desainer dalam rancang bangun kapal danalat tangkap sehingga operasional  penangkapan dapat dimaksimalkan untuk meningkatkan hasil tangkapan dan dapat menjamin keselamatan kapal, alat tangkap dan nelayan selama melakukan operasi penangkapan  di laut.Penelitian ini ditujukan untuk meneliti desain kapal pukat cincin yang berpangkalan di PPI desa Eri Kota Madya Ambon.Metode yang digunakan adalah metode survey.Hasil penelitian menunjukkan karakteristik parameter desain koefisien bentuk kapal 30 % dan nilai perbandingan ukuran utama kapal 49 % belum memenuhi nilai standar rancang bangun kapal ikan. Sehingga kapal ini tidak aman untuk mengoperasikan peralatan tangkap jaring lingkar(purse seine).

1985 ◽  
Vol 26 ◽  
pp. 11-18 ◽  
Author(s):  
E Wassef ◽  
A Ezzat ◽  
T Hashem ◽  
S Faltas

Author(s):  
Frischilla Pentury ◽  
Eygner Gerald Talakua ◽  
Tati Ngangun

The low profits of mini purse seine in Sathean Village will have an impact on the business risks being carried out. The new paradigm states that the relationship between risk and profit levels is quadratic; too much risk can lead to the loss and even destruction of a business. Thus, the fisherman of mini purse seine business owners in Sathean Village needs to manage their business risk well to achieve optimum profit for business sustainability. This study aims to assess business profits and business risks. Primary data was collected on 6 fisherman owners of mini purse seine business owners in Sathean Village as respondents, conducted business profit analysis and business risk calculation based on probability density. The results showed that the business profit was Rp 241,608,203/year or Rp 196,551,994 in the peak season, Rp 41.828.721 in the medium season and Rp 3.2227.488 in the less season.In peak and less seasons, these businesses are at risk or have the opportunity to lose, while in the medium season is not risky.


Author(s):  
Gwenaëlle Wain ◽  
Loreleï Guéry ◽  
David Michael Kaplan ◽  
Daniel Gaertner

Abstract Numerous pelagic species are known to associate with floating objects (FOBs), including tropical tunas. Purse seiners use this behaviour to facilitate the capture of tropical tunas by deploying artificial drifting fish aggregating devices (dFADs). One major recent change has been the integration of echosounders in satellite-tracked GPS buoys attached to FOBs, allowing fishers to remotely estimate fishable biomass. Understanding the effects of this new technology on catch of the three main tuna species (yellowfin tuna, Thunnus albacares; bigeye tuna, Thunnus obesus; and skipjack tuna, Katsuwonus pelamis) is important to accurately correct for this change in catch-per-unit-effort (CPUE) indices used for stock assessments. We analysed catch data from the French purse seine fleet for the period 2010–2017 in the Indian Ocean to assess the impact of this fleet’s switch to echosounder buoys around 2012. Results indicate that echosounders do not increase the probability a set will be succesful, but they have a positive effect on catch per set, with catches on average increasing by ≈2−2.5 tonnes per set (≈10%) when made on the vessel's own dFADs equipped with an echosounder buoy. Increases were due to a decrease in sets below ≈25 tonnes and an increase in those greater than ≈25 tonnes, with a non-linear transition around this threshold. This increase explains the considerable investment of purse seiners in echosounder buoys, but also raises concerns about bias in stock size estimates based on CPUE if we do not correct for this fishing efficiency increase.


2021 ◽  
Vol 674 (1) ◽  
pp. 012044
Author(s):  
A Rahmah ◽  
M Ulfa ◽  
A Damora ◽  
R M Aprilla ◽  
M Chaliluddin
Keyword(s):  

2021 ◽  
Vol 695 (1) ◽  
pp. 012032
Author(s):  
R Irnawati ◽  
F N Supadminingsih ◽  
D Surilayani ◽  
H S Nurdin ◽  
A Susanto ◽  
...  

2021 ◽  
Vol 241 ◽  
pp. 106001
Author(s):  
Osman Crespo-Neto ◽  
Eric Díaz-Delgado ◽  
Tatiana A. Acosta-Pachón ◽  
Raúl O. Martínez-Rincón

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