catch-and-effort:

Definition: The term catch and effort refers to the fine-scale data – usually from logbooks, and reported per fleet, year, gear- type of school, month, grid and species.  This includes:

·         Surface fisheries:

o    Purse seine and pole-and-line fisheries: catch weight by species and fishing effort by fishing mode, 1° grid area and month strata. In addition:

§  Support vessels: effort data expressed as the number of days at sea by 1° grid area and month.

§  Fish Aggregating Devices (FAD): effort data expressed as the total number of FAD visited per type of FAD, type of visit, 1° grid area and month.

o    Other fisheries: catch weight by species and fishing effort by 1° grid area and month strata.

·         Longline fisheries: catch by species, in numbers or weight, and effort as the number of hooks deployed by 5° grid area and month strata.

·         Coastal fisheries: available catch by species, fishing gear and fishing effort may be provided using an alternative geographical area if it better represents the fishery concerned.

Catch-and-effort data shall be extrapolated (raised) to the total catches (and effort) for the fishery concerned.

Surface and longline fisheries: 

IOTC Form: Form 3CE

IOTC Form: Form 3AR

Structure of the form:

·         ReadMe: links to all code lists required for filling-up the forms.

·         CE: The main form to complete the catch and efffort

General Information:

·         Reporting Source: details about the individual reporting the information and the Institution responsible for the report.

a.       Contact name: Name of the individual reporting the information

b.      Contact e-mail address: E-mail of the individual reporting the information

c.       Contact phone: Phone number of the individual reporting the information

d.      Organization name: Name of the organization responsible for the report

e.       Organization e-mail address: E-mail of the organization responsible for the report

·         Dataset:  General information about the dataset reported.

a.       Reporting Country: The country reporting the catches (code list: FLG)

b.      Flag Country: The country for which retained catches are reported (code list: FLG)

c.       Year: The calendar year the catches were made

d.      Type of Fishery: The type of fishery for which the retained catches are reported (code list: FIS)

e.       Target species: Main species targeted, as defined in (code list: TSPC)

f.        Effort units: The effort units for various fisheries (code list: EFT)

a. Surface and coastal fisheries: no measure of effort is specified; The table below lists the units of effort that are recommended for each fishery. Other alternative units are also provided in each case.

b. Longline fisheries: number of hooks set

g.       Catch units: Catches shall be reported in live weight (metric tons) and/or number, depending on the fishery (code list: CUN):

a. Surface and coastal fisheries: live weight in tons

b. Longline fisheries: live weight in tons and/or numbers of fish

h.      Type of data: Type of statistics reported.

a. Preliminary statistics: The statistics were estimated by using some information from the fishery; the statistics reported are likely to change in the future as more information become available.

b. Final statistics: The statistics were estimated by using the complete set of data for the fishery and year concerned; the statistics reported are unlikely to change in the future.

i.       Data Sources: The types of information that were used for the estimation of the catch-and-effort for the fishery concerned (Code list: DSO).

j.      Data Processing: The type of estimation procedure (Code list: DPR).

k.       Raised to total catch: Indicating if the catch data raised to total catch:

l.        Coverage: The proportion of the total catches (in number or weight)/effort that were monitored for the fishery concerned (code list: COV).

Data:

·         Month: The calendar month the catches were made.

·         Grid: The grid area the catches were made. Provide the spatial information by month and effort

  Paragraph 4 of Resolution 15/02. Catch-and-effort data

a.        Subparagraph (a) For surface fisheries: catch weight by species and fishing effort shall be provided by 1° grid area and month strata. (…)

b.       Subparagraph (b) Longline fisheries: catch by species, in numbers or weight, and effort as the number of hooks deployed shall be provided by 5° grid area and month strata. (…)

c.       Subparagraph (c) Coastal fisheries: available catch by species, fishing gear and fishing effort shall be submitted frequently and may be provided using an alternative geographical area if it better represents the fishery concerned.

·         Estimated: The status of the catch-and-effort data recorded for the stratum (code list: EST).

·         Effort: Total effort exerted

·         Catches by species: including:

.       Retained catches: catches for each species retained on board in live weight and/or number. The catches of specimens for which only part/s of their bodies are retained on board shall be always reported as retained catches, in live weight (code list: SPC).