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Access to ICCAT statistical databases

The ICCAT Secretariat maintains over 2 gigabytes of information in various databases. Most of these can be accessed through the links below. We are currently working on making available the remaining datasets via Internet.

The dissemination of ICCAT data is according to the Rules and Procedures for the protection, access to, and dissemination of data compiled by ICCAT, adopted by the Commission in 2022. While most databases currently used in the stock assessments and other SCRS work are of public domain and are published in this web page, the aforementioned rules also include procedures for using data classified as confidential. Such confidential data are voluntarily provided by CPCs for specific use by the SCRS.  

Catalogues

Standard SCRS catalogues on statistics (Task 1 and Task 2) by species, stock, major fishery (flag/gear combinations ranked by order of importance) and year.

Nominal Catch Information

Nominal annual catch by species, region, gear, flag, and where possible, separated between EEZ and High Seas. In general, responsibility for reporting catch and landings data rests on flag states.
Task 1 web
 Web-based application to view nominal catches of Atlantic tunas and tuna-like fish (including sharks), by gear, region and flag in web application [2025-01-31].
Task 1 Excel    Dashboard   ShinyApp
MS Excel pivot table to obtain nominal catches of Atlantic tunas and tuna-like fish (including sharks), by gear, region and flag [2025-01-31].

* Last update published on the web. Future updates available upon request to "info@iccat.int"

Sample fishing statistics and fish sizes

Catch and fishing effort statistics for each species by small area (1x1 degree squares for most gears, 5x5 degree squares for longlines), gear, flag, and month. Task 2 data also include actual size frequencies of samples measured for each species by small area, gear, flag and month.
In some cases, detailed size samples are also extrapolated to match total catches in order to be used in stock assessments. This includes the CATDIS and catch-at-size datasets.
Task 2 catch/effort

MS Access Data Base [2025-01-31].

Detailed catalogue [2025-01-31].

Task 2 catch/effort Web
 Web-based application to view Task 2 Catch & Effort records [2025-01-31]. Read Me
Task 2 catch/effort by operation mode [Fad/Free school] (only tropicals)
 Purse seine Catch & Effort statistics of tropical fishery by operation mode (Fad / Free school) between 1991 and 2022 [2025-01-31].
Task 2 size

Species based CSV files [2025-01-31]

Read Me    -  Detailed catalogue

T2SZ - size frequencies (observed)
ALB Albacore BSH Blue shark SMTuna Small tuna
BFT Atlantic Bluefin tuna POR Porbeagle OTH Rest of species
BET Bigeye tuna SMA Shortfin mako    
YFT Yellowfin tuna        
SKJ Skipjack tuna        
SWO Swordfish        
BUM Atlantic blue marlin        
SAI Atlantic sailfish        
SPF Longbill spearfish        
WHM Atlantic white marlin        
T2CS - catch-at-size (estimated)
ALB Albacore BFT Atlantic Bluefin tuna BET Bigeye tuna
YFT Yellowfin tuna SKJ Skipjack tuna SWO Swordfish
           
           
           
           
           
           
           
           
Task 2 catch data raised to total landings (5x5 degree squares, quarter, gear) [2025-01-31]
Read Me    -   Codes
CATDIS(all)
CATDIS(by species)
Spatio-Temporal estimates of overall Atlantic Fishing Effort for Longline fleets.
Read Me
Effdis LL (csv file 2.8 Mb)
Catch-at-size
Examples of catch at size data used in assessments (Albacore, Bigeye, Bluefin, Skipjack, Swordfish and Yellowfin) . All files are in "*.csv" format.
File headers are:
SpeciesCode, StockID, YearC, FlagName, FleetCode, GearGrpCode, GearCode, TimeCatch, SquareTypeCode, QuadID, Lat, Lon,
SchoolType {0:NA/none; 1:FAD; 2:Free School} (only BET, SKJ, YFT)
[Lclasses, 1cm lower limit, in Number]
YFT {30, 21, 22,  ... 180} (29- and  181+ are accumulated class groups)
BET {30, 21, 22,  ... 190} (29- and  191+ are accumulated class groups)
SKJ {20, 21, 22,  ...   90} (19- and  91+ are accumulated class groups)

Tagging

The Secretariat maintains an extensive database of conventional tagging data for Atlantic Tunas and tuna-like species. This database is currently undergoing a revision.
Conventional tag data:  update date [2025-01-31]
Specie
Excel
Dashboard
Map Viewer
Tuna species
ALB Albacore Download Open dashboard Ongoing
BET Bigeye tuna Download Open dashboard Open mapviewer
BFT Atlantic Bluefin tuna Download Open dashboard Open mapviewer
SKJ Skipjack tuna Download Open dashboard Open mapviewer
YFT Yellowfin tuna Download Open dashboard Open mapviewer
Shark species
BSH Blue shark Download Open dashboard Open mapviewer
POR Porbeagle Download Open dashboard Open mapviewer
SMA Shortfin mako Download Open dashboard Open mapviewer
Billfish species
BUM Atlantic blue marlin Download Open dashboard Ongoing
SAI Atlantic sailfish Download Open dashboard Ongoing
SWO Swordfish Download Open dashboard Ongoing
WHM Atlantic white marlin Download Open dashboard Ongoing
Other species
Small tunas Download Open dashboard Ongoing
Electronic tag Inventory:  update date [2025-01-31]
Specie
Excel
Dashboard
  
Tuna species
ALB Albacore Download Open dashboard  
BET Bigeye tuna Download Open dashboard  
BFT Atlantic Bluefin tuna Download Ongoing  
SKJ Skipjack tuna Download Ongoing  
YFT Yellowfin tuna Download Open dashboard  
Shark species
BSH Blue shark Download Open dashboard  
POR Porbeagle Download Ongoing  
SMA Shortfin mako Download Open dashboard  
Billfish species
BUM Atlantic blue marlin Download Open dashboard  
SAI Atlantic sailfish Download Open dashboard  
SWO Swordfish Download Open dashboard  
WHM Atlantic white marlin Download Open dashboard  
Dashboard: Created with Microsoft PowerBI (https://powerbi.microsoft.com) Map Viewer: Created with Arcgis online (https://www.arcgis.com/)

Other information

In addition to Task 1 and Task 2 data, the SCRS also makes use of other types of information for its analyses of the stocks, depending on need, relevance, and availability.
Observer data
The Secretariat holds very-limited observer data, which may be made available upon request to the Executive Secretary, subject to the rules and procedures of data .
Statistical Bulletin
 The Bulletin, updated annually, summarizes available information in a user-friendly format that includes multiple tables and graphs.