A Snapshot of the Tropical Tuna Purse Seine Large-Scale Fishing ...

Table 1. Flag codes used in this paper. The column Economy indicates whether a given flag was treated as
a developed economy in this study.
Flag Name Economy Flag Name Economy Flag Name Economy
ANT Netherlands Antilles Other GRC Greece Developed PAN Panama Other
AUS Australia Developed GTM Guatemala Other PHL Philippines Other
BLZ Belize Other HRV Croatia Other PNG Papua New Guinea Other
CHN China, PR Other IDN Indonesia Other RUS Russian Federation Other
CIV Cote d'Ivoire Other IRN Iran Other SLB Solomon Islands Other
COL Colombia Other ITA Italy Developed SLV El Salvador Other
CPV Cape Verde Other JPN Japan Developed SYC Seychelles Other
DZA Algeria Other KIR Kiribati Other SYR Syria Other
ECU Ecuador Other KOR Korea Rep. Developed THA Thailand Other
EGY Egypt Other LBY Libya Other TUN Tunisia Other
ESP Spain Developed MAR Morocco Other TUR Turkey Other
FRA France Developed MEX Mexico Other TUV Tuvalu Other
FSM Fed. States Micronesia Other MHL Marshall Islands Other TWN Chinese Taipei Developed
GBR Great Britain Developed NIC Nicaragua Other USA United States Developed
GHA Ghana Other NZL New Zealand Developed VEN Venezuela Other
GIN Guinea Other OMN Oman Other VUT Vanuatu Other
3. Results
3.1 Global list of purse seine vessels
Merging the RFMO lists, selecting purse seine vessels only, and identifying likely
duplicates, resulted in a total of 1,664 vessels. After following steps 3-5 outlined above
in Section 2.2, this list contained information as follows:
• 83% of the vessels had entries for LOA
• 76% of the vessels had entries for GRT
• 33% of the vessels had entries for FHV
• 19% of the vessels had entries for FCC
Therefore, in terms of choosing whether to measure capacity in terms of FHV or FCC,
using the former would require fewer extrapolations. The estimation of relationships
between different vessel attributes in Section 3.2 is aimed at estimating FHV values for
the vessels that do not contain such information.
In terms of sizes, the vessels with available data showed a bi-modal distribution (Figure
1), with modes around 22.5 and 62.5 meters LOA. Vessel sizes ranged from 5.4 to 116
meters; the smaller values probably correspond to small coastal purse seiners.
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