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Indian Ocean Tuna Commission
Indian Ocean Tuna Commission
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23rd Working Party on Tropical Tuna (WPTT23)

Meeting: 
Working Party on Tropical Tunas (WPTT)
Meeting year: 
2021
Meeting session: 
2 302
Date: 
Mon, 25/10/2021 - 12:00 to Sat, 30/10/2021 - 16:00
Venue country/city: 
Online/Virtual
Chairperson: 
Dr. Gorka Merino
Vice-Chairperson: 
Dr. Shiham Adam
Deadlines: 
  •     Paper titles (21 September 2021)
  •     Full papers (6 October 2021)

(all submissions should be sent to [email protected])

 

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Documents

Meeting Report
Reference Title Available on File
IOTC-2021-WPTT23-R Report of the 23rd Session of the IOTC Working Party on Tropical Tunas 01/12/2021
Datasets
Reference Title Available on File
IOTC-2021-WPTT23(AS)-DATA02 IOTC Species data catalogues – availability of datasets 29/09/2021
IOTC-2021-WPTT23(AS)-DATA03 Nominal catches by fleet, year, gear, IOTC area and species 19/09/2021
IOTC-2021-WPTT23(AS)-DATA04 Catch and effort data - vessels using drifting longlines 19/09/2021
IOTC-2021-WPTT23(AS)-DATA05 Catch and effort data - surface fisheries 19/09/2021
IOTC-2021-WPTT23(AS)-DATA06 Catch and effort data - vessels using other gears (e.g., gillnets, lines and unclassified gears) 19/09/2021
IOTC-2021-WPTT23(AS)-DATA07 Catch and effort data - all vessels 19/09/2021
IOTC-2021-WPTT23(AS)-DATA08 Catch and effort data - reference file 19/09/2021
IOTC-2021-WPTT23(AS)-DATA09 Size frequency data - Bigeye tuna (BET) 24/09/2021
IOTC-2021-WPTT23(AS)-DATA10 Size frequency data - Skipjack tuna (SKJ) 24/09/2021
IOTC-2021-WPTT23(AS)-DATA11 Size frequency data - Yellowfin tuna (YFT) 19/09/2021
IOTC-2021-WPTT23(AS)-DATA12 Size frequency data - reference file 24/09/2021
IOTC-2021-WPTT23(AS)-DATA13 Equations used to convert from fork length to round weight for tropical tunas species 19/09/2021
IOTC-2021-WPTT23(AS)-DATA14 Yellowfin tuna - stock assessment input data 24/09/2021
IOTC-2021-WPTT23(AS)-DATA15-CPUE Standardised CPUE indices for yellowfin 21/09/2021
Information papers
Reference Title Available on File
IOTC-2021-WPM12-10 Evaluations of an empirical MP for Indian Ocean skipjack tuna 26/10/2021
IOTC-2021-WPM12-11 Indian Ocean Bigeye Tuna Management Procedure Evaluation Update 26/10/2021
IOTC-2021-WPM12-13 Indian Ocean yellowfin tuna management procedure evaluation update 26/10/2021
IOTC-2021-WPM12-14 Work plan for an Indian Ocean yellowfin tuna close-kin mark-recapture design study 26/10/2021
IOTC-2021-WPTT23-INF01 Outcomes of the 25th Session of the Commission 13/10/2021
IOTC-2021-WPTT23-INF02_Rev1 Preliminary stock assessment of Indian Ocean yellowfin tuna using Statistical-Catch-At-Size (SCAS) (1950-2020 22/10/2021
IOTC-2021-WPTT23-INF03_Rev1 Development of the SCAS (Statistical-Catch-At-Size) Software 22/10/2021
Meeting documents
Reference Title Available on File
IOTC-2021-WPTT23-01a Draft agenda for the WPTT23 12/10/2021
IOTC-2021-WPTT23-01b_Rev4 Draft Annotated Agenda of the Working Party on Tropical Tunas 21/10/2021
IOTC-2021-WPTT23-02_Rev1 List of documents for WPTT23 21/10/2021
IOTC-2021-WPTT23-03_Rev1 Review of the statistical data available for yellowfin tuna 21/10/2021
IOTC-2021-WPTT23-04 Program of work 2022 - 2026 22/10/2021
IOTC-2021-WPTT23-05_Rev1 Estimating the age and growth of yellowfin tuna (Thunnus albacares) in the Indian Ocean from counts of daily and annual increments in otoliths 20/10/2021
IOTC-2021-WPTT23-06 Comparative study of Indian Ocean Dipole impacts on catch rates of yellowfin tuna (Thunnus albacares) and bigeye tuna (Thunnus obesus) in the Indian Ocean 13/10/2021
IOTC-2021-WPTT23-07 Review of size data from Indian Ocean longline fleets, and its utility for stock assessment. 13/10/2021
IOTC-2021-WPTT23-08_Rev1 Approaches for estimating natural mortality in tuna stock assessments: application to Indian Ocean yellowfin tuna 13/10/2021
IOTC-2021-WPTT23-09 A preliminary report on Estimates of fecundity, age at maturity, sex ratios, spawning season, and spawning fraction for yellowfin tuna 25/10/2021
IOTC-2021-WPTT23-10 Standardized purse seine CPUE of Yellowfin tuna in the Indian Ocean for the European fleet 21/10/2021
IOTC-2021-WPTT23-11 Updated report of trilateral collaborative study among Japan, Korea and Taiwan for producing joint abundance indices for the yellowfin tunas in the Indian Ocean using longline fisheries data up to 2020 19/10/2021
IOTC-2021-WPTT23-12 Preliminary Indian Ocean Yellowfin Tuna Stock Assessment 1950-2020 (Stock Synthesis) 19/10/2021
IOTC-2021-WPTT23-14 Outline of climate and oceanic conditions in the Indian Ocean: an update to mid-2021 18/10/2021
IOTC-2021-WPTT23-15_Rev1 Aggregation times of tuna schools to FADs estimated by echosounder data 13/10/2021
IOTC-2021-WPTT23-16 Fine-scale analysis of drifiting Fish Aggregating Device (dFAD) beachings in the Seychelles Archipelago: Hotspots offer hope for clean-up 21/10/2021
IOTC-2021-WPTT23-17 Nominal catch of tropical tunas by artisanal and industrial fishery in the IOTC area of competence 13/10/2021
IOTC-2021-WPTT23-18_Rev1 Estimating the age and growth of bigeye tuna (Thunnus obesus) in the Indian Ocean from counts of daily and annual increments in otoliths 13/10/2021
IOTC-2021-WPTT23-19 Estimating the size at sexual maturity of bigeye tuna (Thunnus obesus) in the eastern Indian Ocean 13/10/2021
IOTC-2021-WPTT23-20_Rev1 Temporal trends and variability in the spatial distribution of European tropical tuna purse-seine fishing in the Atlantic and Indian Oceans 13/10/2021
IOTC-2021-WPTT23-21 Investigating growth information for yellowfin and bigeye tuna from the IOTTP tag-recapture data 22/10/2021
IOTC-2021-WPTT23-22 Indian Ocean Tellowfin Tuna SS3 Model projections 22/11/2021

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