Description

This form provides for the reporting of estimates of retained catches in live weight equivalent (metric tonnes; t) for the IOTC species, common sharks, and other bycatch species. Reporting of quarterly estimates is voluntary and recommended to assess seasonality of the retained catches. For each stratum, the data coverage – i.e., the percentage (%) of amount of fish sampled – derived from the coverage type must be reported to assess the representativeness and quality of the estimates.

Click here to download a blank version of Form 1RC, or return to the list of all IOTC statistical data reporting forms.

Data Content

Total live weight of retained catches by species, along with information on the value (%) and type of sampling coverage used for the estimations by quarter if available, year, fleet, fishery, retain reason and IOTC main area.

Stratification

General Information

Element Requirement Description Format Input value
Reporting year M Gregorian calendar year of the fishing activities reported through the dataset Integer e.g., 1996
Reporting entity M Three-letter (alpha-3) code of the entity reporting the dataset to the IOTC Secretariat String Code from Entities
Flag state M Three-letter (alpha-3) code of the country registration of the fishing vessels String Code from Countries

Main Data Elements

Element Requirement Description Format Input value
Quarter O Fishing time period Integer 0: Jan-Dec; 1: Jan-Mar; 2: Apr-Jun; 3: Jul-Sep; 4: Oct-Dec
Fishery M IOTC-defined fisheries String Code from Fisheries
IOTC area M Main IOTC areas String Code from IOTC main areas
Retain reason M Reason for retaining the catch onboard String Code from Reasons for retaining
Species M Species caught and retained String Code from Species

Original Data

Element Requirement Description Format Input value
Original data type M Preliminary/final status of the data String Code from Types of data
Original data source M Source of information String Code from Retained catches data sources
Original data processing M Processing applied to the data String Code from Retained catches data processings
Source coverage type M Variable used for data coverage String Code from Types of coverage

Reporting Metadata

Element Requirement Description Format Input value
Liaison officer full name M Name of the liaison officer in charge of the compilation of the data Plain text e.g., John Doe
Liaison officer email M Email address of the liaison officer in charge of the compilation of the data Valid email address e.g.,
Organisation name M Name of the organisation in charge of the compilation of the data Plain text e.g., National Institute of Fisheries
Organisation email O Email address of the organisation in charge of the compilation of the data Valid email address e.g.,
Finalisation date M Date of finalisation of the dataset ISO 8601 e.g., 1996-03-27
Submission date O Date of submission of the dataset ISO 8601 e.g., 1997-03-21

Reporting Deadlines

  • Longline fisheries: 30 June (preliminary), 30 December (final)
  • Surface fisheries: 30 June (final)
  • Coastal fisheries: 30 June (final)

Reference Code Lists

Entities

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  • Version: 1.0.0
  • Last update: 2023-05-12

Countries

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  • Version: 1.0.0
  • Last update: 2023-05-12

IOTC Main Areas

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  • Version: 1.0.0
  • Last update: 2023-05-12

Fisheries

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  • Version: 1.0.36925
  • Last update: 2025-06-27

Species

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  • Version: 1.0.1
  • Last update: 2025-06-27

Reasons for Retaining

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  • Version: 1.0.1
  • Last update: 2024-02-01

Types of Data

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  • Version: 1.0.0
  • Last update: 2023-05-12

Retained Catches Data Sources

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  • Version: 1.0.0
  • Last update: 2023-05-12

Retained Catches Data Processings

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  • Version: 1.0.0
  • Last update: 2023-05-12

Types of Coverage

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  • Version: 1.0.0
  • Last update: 2023-05-12