A collection of code lists modelling:
Return back to the list of reference data domains.
All groups of species of relevance to the IOTC.
All categories of species of relevance to the IOTC.
Reference codes modelling the species interacting with Indian Ocean fisheries as:
These correspond to a subset of the entries currently found in the ASFIS list of species for fishery statistics purposes, from which they inherit the alphabetic codes, English, French and scientific names, as well as the family and order, and add the species category (in the IOTC sense), the IUCN status (IUCN 2022. IUCN Red List of Threatened Species. Version 2022-2 <www.iucnredlist.org>) and other characteristics of each entry such as their status of single species / species aggregate, bait species, SSI species, IOTC species.
Species references are associated to a species group and to a species category through their SPECIES_GROUP_CODE and SPECIES_CATEGORY_CODE attributes, respectively.
All species of relevance to the IOTC, regardless of their nature and classification.
The subset of species that are managed by the IOTC, as defined in Article 3 of the Agreement (Species and stocks):
“The species covered by this Agreement shall be those set out in Annex B. The term ‘stocks’ means the populations of such species which are located in the Area or migrate into or out of the Area”.
The list of species that are intentionally targeted by one or more Indian Ocean fisheries for tuna and tuna-like species.
The definition of bycatch in the IOTC is that of “All species, other than the 16 species listed in Annex B of the IOTC Agreement, caught or interacted with by fisheries for tuna and tuna-like species in the IOTC area of competence”.
“A bycatch species includes those non-IOTC species which are:
Therefore, the target species listed here also include bycatch species, according to the definitions above.
For the purpose of improving the voluntary collection of information on the post-release mortality of discarded species of special interest, the Scientific Committee – at its 21st session in 2018 – endorsed the list of species considered of special interest, as proposed by the ROS expert workshop.
This list is originally found in Appendix VIII of the WPDCS14 report, and further simplified in Appendix 6b of the SC21 report.
Currently, the list of species of special interest includes:
Reference codes for the methods used to handle the individuals of Species of Special Interest brought onboard.
A comprehensive list of cetacean species, which are all considered of special interest by the IOTC.
A comprehensive list of cetacean species and whale shark, which are all considered of special interest by the IOTC.
A comprehensive list of seabird species, which are all considered of special interest by the IOTC.
The list of marine turtles species found in the Indian Ocean, which are all considered of special interest by the IOTC.
Reference codes for the bait conditions.
Reference codes for the types of bait.
Reference codes used to identify a given fate as indicating that the fish has been retained or discarded.
All possible fates, combining the reasons for retain and those for discard.
Reference codes modelling the reasons why aquatic creatures caught by the fishery are retained onboard, i.e., those with the type of fate set to ‘RE’.
Reference codes that model the reasons why aquatic creatures caught by the fishery are then discarded at sea, i.e., those with the type of fate set to ‘DI’.
Reference codes modelling the conditions (at capture / at release) of individual aquatic creatures being discarded at sea or measured.
Reference codes for depredation sources.
Reference codes for the types of tags released or retrieved.
Reference codes for the period (during operations) when samples are collected.
Reference codes for the possible sampling protocols used by observers during hauling operations.
Reference codes for the sampling methods used by observers for the collection of biological sub-samples.
Reference codes for the sampling methods used by observers to obtain total catch estimates per species for the observed set.
Reference codes modelling the sex of the individual aquatic creatures being measured.
Reference codes used to identify a given measurement type as length or weight measurements, as well as to identify a given measurement tool as measuring lengths or weights.
All possible measurements, combining those specific for individual lengths and weights.
These do not include information on the actual measuring tool used, nor on the straight / curved nature of the measurement (for lengths only) which have to be provided separately if necessary.
All possible length measurements, i.e., those with the type of measurement set to ‘LN’.
All possible weight measurements, i.e., those with the type of measurement set to ‘WG’.
All possible measurement tools, combining those specific for individual lengths and weights.
All possible length measurement tools, i.e., those with the type of measurement set to ‘LN’.
All possible weight measurement tools, i.e., those with the type of measurement set to ‘WG’.
All possible weight estimation methods.
Same as weight measurement tools.
All recommended measurement values (size bins, min / max measurements, etc.) by species.