This table lists catch in weight (purse seine) and/or numbers of fish (longline) of tuna and tuna-like species, preferably raised to the total nominal catch and fishing effort by month, species and gear. The maximum spatial aggregation should be by 1°x1° grid area for purse seine and 5°x5° grid area for longline. This is not, however, the case with all CE data available: CE data recorded for most artisanal fleets refers to irregular areas (e.g. CE data recorded per port of unloading).
These data, as well as the length-frequency data listed below are considered to be in the public domain, provided that the catch of no individual vessel can be identified within a time/area stratum. In cases when an individual vessel can be identified, the data are aggregated prior to release by time, area or flag to preclude such identification, and will then be in the public domain.
Catch-and-effort and length-frequency data grouped at a finer level of time-area stratification are only released with written authorization from the sources of the data and are subject to a number of constraints destined to preserve confidentiality.
Available for download :  see below.

Length-frequency sample or raised data by species and gear are kept in the smallest practicable time/area strata. The spatial and temporal aggregation are identical to those of the catch and effort data, as are the restrictions on release.
Available for download :  see below.

This data set lists the number of vessels operating under the flag of the reporting country catching tuna and tuna-like species by gear and size category within one calendar year. Foreign vessels chartered by or under joint venture arrangements with the reporting country should be reported separately.
It is organised by size categories and does not permit aggregation of vessel numbers by category because of the lack of uniformity between countries in the units by which fishing vessels are categorised.

NOTE THAT THE FOLLOWING DATASETS MAY DIFFER FROM THOSE THAT THE SECRETARIAT PREPARES FOR THE IOTC SCIENTIFIC MEETINGS. REFER TO THE CORRESPONDING MEETING (www.iotc.org/English/meetings.php) IF YOU WANT TO DOWNLOAD THOSE DATASETS.

The file CAT_IOTC.pdf (as of 17-Oct-2007) , contains information on the amount of nominal catches strata for which catch and effort and/or size frequency data are available for IOTC species (Catalogues on Data Availability for IOTC species).

Nominal catches are available in spreadsheet format (Microsoft excel) both for IOTC species and sharks. Please, refer to the worksheet NOTES within the downloadable spreadsheet if you want to use this dataset.

NC data: click here to download the spreadsheets 1950-2007 series, (last updated on 01-10-2008)

Fishing craft statistics are available in spreadsheet format.

FC data: click here to download the 1997-2006 (last updated 27-11-2007)

CE data are available in text (ASCII) format. Please, refer to the detailed CE reference if you want to use this dataset.

CE purse seine and bait boat: Click here to download the 1950-2007 text file based data (last updated on 03-09-2008)

CE long line: Click here to download the 1950-2007 text file based data (last updated on 03-09-2008)

CE other including available gillnet, troll line, hand line, trawl and other gears data: Click here to download the 1950-2006 text file based data (last updated on 03-09-2008)

Click here to download the above CE files all in one go.

SFreference: Please refer to the detailed SFrefrence.xls if you want to use these datasets.

Detailed SF data are not presented for download. Please contact the Secretariat if you need any of the available datasets.

Please refer to the corresponding meetings to download the datasets that we used for stock assesment.