Open-Access Inshore Fisheries: The Economic Performance of the Purse Seine Fishery inNha Trang, Vietnam

2016 ◽  
Vol 23 (4) ◽  
pp. 42-61
Author(s):  
TRAN THI THU HOA ◽  
PHAM THANH THAI
Keyword(s):  
Open Access ◽  
Economic Performance ◽  
Purse Seine ◽  
Purse Seine Fishery

scholarly journals Economic Performance and Capacity Utilisation in Vietnamese Purse Seine Fishery

2020 ◽  
Vol 33 (1) ◽  
Author(s):  
CAO THI HONG NGA ◽  
◽  
ARNE EIDE ◽  
CLAIRE W. ARMSTRONG ◽  
LE KIM LONG
Keyword(s):  
Economic Performance ◽  
Purse Seine ◽  
Capacity Utilisation ◽  
Purse Seine Fishery

scholarly journals Open-Access Inshore Fisheries: The Economic Performance of the Purse Seine Fishery in Nha Trang, Vietnam

2016 ◽  
Vol 23 (04) ◽  
pp. 42-61
Author(s):  
Thai Pham Thanh ◽  
Hoa Tran Thi Thu
Keyword(s):  
Open Access ◽  
Economic Performance ◽  
Fishing Effort ◽  
Purse Seine ◽  
Economic Decline ◽  
Factors Affecting ◽  
Fishing Vessels ◽  
Near Shore ◽  
Cost Efficient ◽  
The Cost

In Vietnam the number of fishing vessels, especially near the shore, has increased continuously, despite the Government’s target of a reduction. In particular, 80% of the fishing vessels operating in the coastal areas make up only 11% of the exclusive economic zone. Such heavy use of near-shore fish resources could imply overfishing and economic decline. Therefore, the economic performance of the inshore purse seine vessels in an open-access fishery has been investigated based on a 2011 survey of the cost and earnings data of 62 anchovy purse seiners, representing about 46 % of such vessels in Nha Trang, Vietnam. The empirical results show that an average purse seiner is able to cover all the costs and earn a profit margin of 17.41% and that crew members earn their opportunity cost of labor or above. Engine power, number of crew size, and number of fishing days are identified as the main factors affecting fishing effort of the vessel. An application of the Salter diagram indicates that a large number of vessels with high relative standardized effort are the most cost-efficient vessels. The majority of these vessels are found to earn intra-marginal rent despite the open-access characteristics of this fishery.

Spatial segregation by size of billfishes bycaught by the tuna purse-seine fishery in the Eastern Pacific Ocean

2021 ◽  
Vol 241 ◽  
pp. 106001
Author(s):  
Osman Crespo-Neto ◽  
Eric Díaz-Delgado ◽  
Tatiana A. Acosta-Pachón ◽  
Raúl O. Martínez-Rincón
Keyword(s):  
Pacific Ocean ◽  
Spatial Segregation ◽  
Eastern Pacific ◽  
Purse Seine ◽  
Eastern Pacific Ocean ◽  
Purse Seine Fishery

The Spanish purse-seine fishery targeting small pelagic species in the Bay of Biscay: Landings, discards and interactions with protected species

2021 ◽  
Vol 239 ◽  
pp. 105951
Author(s):  
Jon Ruiz ◽  
Maite Louzao ◽  
Iñaki Oyarzabal ◽  
Luis Arregi ◽  
Estanis Mugerza ◽  
...  
Keyword(s):  
Purse Seine ◽  
Bay Of Biscay ◽  
Protected Species ◽  
Pelagic Species ◽  
Purse Seine Fishery

scholarly journals Biological patterns of the Brazilian sardine in the purse seine fishery off Brazil

2019 ◽  
Vol 6 ◽  
Author(s):  
Rafael Schroeder ◽  
Angelica Petermann ◽  
Alberto Correia ◽  
Paulo Schwingel
Keyword(s):  
Purse Seine ◽  
Biological Patterns ◽  
Purse Seine Fishery

The purse-seine fishery for small pelagic fishes off the Madeira Archipelago

2019 ◽  
Vol 41 (4) ◽  
pp. 373-383
Author(s):  
R Tejerina ◽  
M Hermida ◽  
G Faria ◽  
J Delgado
Keyword(s):  
Purse Seine ◽  
Pelagic Fishes ◽  
Madeira Archipelago ◽  
Purse Seine Fishery

scholarly journals Fishing Season of Large Tuna from Purse Seine Fishery in Tumumpa, Manado, North Sulawesi

2019 ◽  
Vol 23 (4) ◽  
pp. 171
Author(s):  
Bram Setyadji ◽  
Umi Chodriyah
Keyword(s):  
Ecological Niche ◽  
Operation Time ◽  
Study Data ◽  
Purse Seine ◽  
Fishing Ground ◽  
Skipjack Tuna ◽  
Fishing Season ◽  
Pelagic Fishes ◽  
North Sulawesi ◽  
Purse Seine Fishery

Knowledge on seasonal fishing pattern is essential in fisheries research in order to increase the effectiveness of fishing and at the same time protecting the fishing ground from excessive fishing practices. Determining the seasonal fishing pattern of large pelagic fishes, namely large tuna (yellowfin and bigeye), small tuna (mackerel) and skipjack tuna were the objective of this study. Data from the 2013-2015 fishing operation time series were used to analyze the fishing season using the percentage average per unit effort (CPUE) method. The main focus of this study was purse seine fishery. The research showed that high fishing season of large pelagic fishes allegedly occurred during May to July, which reached its peak on May. On the other hand, low fishing season occurred during January to April, with the lowest on March. There were similarities between large tuna, small tuna and skipjack in term of their seasonal fishing pattern, although they did not show any good correlation (r<0.5). This might due to fact that even tough large tuna, small tuna and skipjack tuna shared the same ecological niche but apparently, they did not show any interaction (symbiosis) but competition.

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