A collection of code lists:
Return back to the list of reference data domains.
Paragraph 3.(a) of IOTC Res. 15/02 state the following concerning catch-and-effort data: “(…) The data shall be extrapolated to the total national monthly catches for each gear. Documents describing the extrapolation procedures (including raising factors corresponding to the logbook coverage) shall also be submitted routinely”.
In addition, the following is stated in Paragraph 4 (Size Data): “(…) Size sampling shall be run under strict and well described random sampling schemes which are necessary to provide unbiased figures of the sizes taken.” and “(…) Length data by species, including the total number of fish measured, shall be submitted by a 5 grid area by month, by gear and fishing mode (…)”.
Reference codes modelling the different type of fishery statistics datasets reported to the IOTC Secretariat (see also: the datasets available to IOTC).
Reference codes for the type of statistics provided through a specific form, and in particular if these are:
Reference codes for the level of raising applied to the data, and in particular if data:
Reference codes indicating if the data estimated for a stratum was actually recorded in the stratum or derived from comparable strata through a substitution scheme.
The types of datasets that were used to estimate the statistics that are reported to the IOTC and main sources for those datasets.
Reference codes for the source of data provided through the catch and effort data forms.
Reference codes for the source of data provided through the discard data form.
Reference codes for the source of data provided through the FAD data form.
Reference codes for the sources used to determine the number of fishing craft reported in the fishing craft data form.
Reference codes for the sources of the data provided through the retained catch data form.
Reference codes for the sources of the data provided through the size-frequency data form.
Reference codes for the types of processing applied to raw information to obtain the data provided through a specific form.
The most common methods used to estimate retained catches, discards, numbers of fishing crafts, catch-and-effort, and size data from the datasets collected for each fishery.
Reference codes for the processings applied to the data provided through the discard data form.
Reference codes for the processings applied to the data provided through the FAD data form.
Reference codes for the methods used to estimate the number of active fishing crafts.
Reference codes modelling the processing applied to the data provided through the retained catch data form.
Reference codes modelling the processing applied to the data provided through the size-frequency data form.
‘Coverage’ refers to the proportion that the amount of fish (in number or weight) or fishing effort that is monitored (sampled) makes out of the total estimated in the stratum concerned.
The type of metrics used to determine the coverage of each stratum for a given dataset.
Actual coverage values, i.e., the proportion that the total number of fish sampled (or sampled weight) for the species make out of the total number (or weight) of fish caught for that species and fishery concerned, shall be provided as a separate field attached to each stratum.