18th Regular Session of the Scientific Committee

Meeting Dates:
Not provisional
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Download Meeting Documents*20 Nov 2023ZIP - 248.77 MB
Symbol Title Files Date of Issue
WCPFC19-2022-SC18 SC18 Summary Report
WCPFC19-2022-SC18-01 SC18 Outcomes Document
Working Papers
Information Papers
Symbol Title Files Date of Issue
SC18-ST-IP-01 Estimates of annual catches in the WCPFC statistical area (21July) - Rev.01
SC18-ST-IP-02 Status of observer data management (22July) - Rev.01
A. Panizza, P. Williams, C. Falasi, E. Loganimoce and E. Schneiter
SC18-ST-IP-03 Project 60: Progress towards achieving SC17 recommendations (24July) - Rev.01
T. Peatman, P. Williams and S. Nicol
SC18-ST-IP-04 Project 90 update: Better data on fish weights and lengths for scientific analyses
J. Macdonald, P. Williams, C. Sanchez, E. Schneiter, S. Prasad, M. Ghergariu, M. Hosken, A. Panizza, T. Park, and S. Nicol
SC18-ST-IP-05 Training observers for elasmobranch biological sampling (Project 109)
Tim Park (SPC-OFP)
SC18-ST-IP-06 Designing EM reviewing rates for WCPFC fisheries
SC18-ST-IP-07 Group Seine Operations of Philippine Flagged Vessels in High Seas Pocket Number 1 (HSP1)
I. Tanangonan, M. Demo-os, J. Jara, R. Ramiscal and A. Dickson
SC18-ST-IP-08 Overview of research cruises by Chinese fishery research vessel "Song Hang" in the WCPFC area
Z. Geng, C. Zhou, X. Dai, F. Wu, and J. Zhu
SC18-ST-IP-09 FAD Minimum Data Fields to be Recorded by WCPFC Purse Seine Vessel Operators
PNA and Tokelau
SC18-ST-IP-10 Tables of coverage levels for operational data fields submitted to the WCPFC (21July) - Rev.01
SC18-ST-IP-11 Draft PROPOSAL for a Project to improve the coverage of cannery receipt data for WCPFC scientific work (1Aug) - Rev.01
Working Papers
Symbol Title Files Date of Issue
SC18-SA-WP-01 Stock assessment of skipjack tuna in the western and central Pacific Ocean: 2022 (29July2022) - Rev.05
C. Castillo Jordán , T. Teears, J. Hampton, N. Davies , J. Scutt Phillips, S. McKechnie, T. Peatman , J.MacDonald, J. Day, A. Magnusson, R. Scott, F. Scott, G. Pilling, and P. Hamer

SC18-SA-WP-02 Stock assessment of Southwest Pacific Shortfin Mako shark (3Aug) - Rev.01
K. Large, P. Neubauer and S. Brouwer
SC18-SA-WP-03 Report on WCPFC project 107b: Improved stock assessment and structural uncertainty grid for Southwest Pacific blue shark (1Aug) - Rev.01
P. Neubauer, F. Carvalho, N. Ducharme-Barth, K. Large, S. Brouwer, J. Day and P. Hamer
SC18-SA-WP-04 Quantifying Rates of Mixing in Tagged, WCPO Skipjack Tuna
J. Scutt Phillips, J. Lehodey, J. Hampton, P. Hamer, I. Senina1 and S. Nicol
SC18-SA-WP-05 Stock assessment of Pacific bluefin tuna in the Pacific Ocean in 2022
SC18-SA-WP-06 Stock assessment and future projections of blue sharks in the North Pacific Ocean through 2020 (21July) - Final Report
SC18-SA-WP-07 Modeling improvements for the Western and Central north Pacific Ocean striped marlin (Kajikia audax) to be implemented in the benchmark stock assessment in 2023 (29July) - Rev.01
Information Papers
Symbol Title Files Date of Issue
SC18-SA-IP-01 A compendium of fisheries indicators for target tuna stocks in the WCPFC Convention Area
S. Hare, G. Pilling, and P. Williams
SC18-SA-IP-02 Report from the SPC Pre-assessment Workshop – March 2022
P. Hamer
SC18-SA-IP-03 Developments in the Multifan-CL software 2021-22
N. Davies, D. Fournier, F. Bouyé, and J. Hampton
SC18-SA-IP-04 Updated draft research plan for ‘key’ tuna species in the WCPO, 2022-2025
SC18-SA-IP-05 Background analyses and data inputs for the 2022 skipjack stock assessment in the Western and Central Pacific Ocean
T. Teears, Y. Aoki, N. Matsubura, Y. Tsuda, C. Castillo Jordan, J. Hampton, E. Schneiter, J. Scutt Phillips, T. Peatman, K. Bigelow, and P. Hamer
SC18-SA-IP-06 Review and new analyses of skipjack growth in the Western and Central Pacific Ocean
J. Macdonald, J. Day, A. Magnusson, M. Maunder, Y. Aoki, N. Matsubara, Y. Tsuda, S. McKechnie, T. Teears, B. Leroy, C. Castillo-Jordán, J. Hampton, and P. Hamer
SC18-SA-IP-07 Characterisation of the fisheries catching South Pacific shortfin mako sharks (Isurus oxyrinchus) in the Western and Central Pacific Ocean
S. Brouwer, K. Large and P. Neubauer
SC18-SA-IP-08 Yellowfin tuna assessment peer review status update
A. Magnusson, J. Day, C. Castillo-Jordan, S. McKechnie, N. Davies, T. Teears, J. Hampton, and P. Hamer
SC18-SA-IP-09 DRAFT Terms of reference for an independent peer review of uncertainty characterisation including ensemble model approaches in WCPFC stock assessments
SC18-SA-IP-10 Progress towards a Close-Kin-Mark-Recapture application to South Pacific Albacore
SC18-SA-IP-11 No Population Structure of Bigeye Tunas (Thunnus obesus) in the Western and Central Pacific Ocean Indicated by Single Nucleotide Polymorphisms
J. Natasha, B. L. Stockwell, A. D. Marie, J. Hampton, N. Smith, S. Nicol and C. Rico
SC18-SA-IP-12 Estimating post-release mortality of longline caught tropical tunas in the Pacific Ocean
J. Muir, R. Barker, M. Hutchinson, B. Leroy, S. Nicol and J. Scutt Phillips
SC18-SA-IP-13 Inputs to the Stock assessment of Sothwest Pacific Shortfin mako shark
K. Large, P. Neubauer, S. Brouwer, M. Kai
SC18-SA-IP-14 Progress report on bomb radiocarbon age validation for yellowfin and bigeye tunas in the WCPO (Project 105) - 2022
A. Andrews, K. Okamoto, K. Satoh, F. Roupsard, C. Welte, and J. Farley
SC18-SA-IP-14a Final report on bomb radiocarbon age validation for yellowfin and bigeye tunas in the WCPO (Project 105) - 2022
A. Andrews, K. Okamoto, K. Satoh, C. Welte, P. Eveson, F. Roupsard, J. Macdonald, B. Lockheed, J. Farley
SC18-SA-IP-15 (Placeholder)
SC18-SA-IP-16 Historical developments of fishing devices in Japanese pole-and-line fishery
N. Matsubara, Y. Aoki, and Y. Tsuda
SC18-SA-IP-17 Procedure of the tag data preparation for the Japanese tagging program
Y. Aoki, N. Matsubara, and Y. Tsuda
SC18-SA-IP-18 Preliminary analysis for the relationship between otolith weight and fork length of bigeye and yellowfin tunas (26July) - Rev.01
K. Okamoto, T. Hasegawa, K. Kumon, T. Eba, T. Matsumoto, H. Yokoi, and K. Satoh
SC18-SA-IP-19 Analysis of tag seeding data and reporting rates for purse seine fleets
T. Peatman
SC18-SA-IP-20 Analysis of tagging data for the 2022 skipjack tuna assessment: corrections for tagging conditions
T. Peatman, J. Scutt Phillips, J. Potts and S. Nicol
Working Papers
Symbol Title Files Date of Issue
SC18-MI-WP-01 Operating models for skipjack tuna in the WCPO
R. Scott, F. Scott, N. Yao, P. Hamer, and G. Pilling
SC18-MI-WP-02 Evaluations of candidate management procedures for skipjack tuna in the WCPO
R. Scott, F. Scott, N. Yao, P. Hamer, and G. Pilling
SC18-MI-WP-03 WCPO skipjack management procedure: dry run
R. Scott, N. Yao, F. Scott, T. Teears, T. Peatman, J. Hampton, P. Hamer, and G. Pilling
SC18-MI-WP-04 Further analyses to inform discussions on South Pacific albacore objectives and the TRP
Pilling, G.
SC18-MI-WP-05 Progress update and technical challenges for the South Pacific albacore MSE framework
R. Scott, N. Yao, F. Scott P. Hamer, and G. Pilling
SC18-MI-WP-06 Mixed fishery harvest strategy update
F. Scott, R. Scott, N. Yao, G. M. Pilling and P. Hamer
SC18-MI-WP-07 Mixed-fishery harvest strategy performance indicators
F. Scott, R. Scott, N. Yao, G. M. Pilling and P. Hamer
SC18-MI-WP-08 A revised draft conservation and management measure for South Pacific Swordfish in the WCPFC Area
SC18-MI-WP-09 Further updates to WCPO skipjack tuna projected stock status to inform consideration of an updated target reference point
G. Pilling, R. Scott, P. Hamer, J. Hampton
Information Papers
Symbol Title Files Date of Issue
SC18-MI-IP-01 Trends in the South Pacific albacore longline and troll fisheries
S. McKechnie, P. Williams, G. Pilling, and the WCPFC Secretariat
SC18-MI-IP-02 Examining Indicators of Effort Creep in the WCPO Purse Seine Fishery
P. Hamer, T. Teears, and the PNAO
SC18-MI-IP-03 Key decisions for the WCPFC Commission and Scientific Committee under the harvest strategy approach for WCPO tuna stocks and fisheries UPDATE to SC14-MI-WP-05
G. Pilling, R. Scott, P. Hamer, J. Hampton, F. Scott, and N. Yao
SC18-MI-IP-04 Updated WCPO bigeye and yellowfin TRP evaluations
S. Hare, R. Scott, P. Hamer and G. Pilling
SC18-MI-IP-05 Including South Pacific albacore in the WCPFC mixed-fishery harvest strategy framework
F. Scott, R. Scott, N. Yao, G. M. Pilling and P. Hamer
SC18-MI-IP-06 Updates to table 9 of the evaluation of CMM 2021-01
P. Hamer, G. Pilling, P. Williams
SC18-MI-IP-07 Southwest Pacific swordfish stock projections
S. Hare, R. Scott, P. Hamer and G. Pilling
SC18-MI-IP-08 Catch and effort data summaries to support discussions on TROPICAL TUNA CMMs
WCPFC Secretariat and SPC-OFP
SC18-MI-IP-09 Summary of results focused on skipjack, yellowfin and bigeye, as presented to WCPFC18 in support of the development of the new WCPFC Tropical Tuna Measure
G. Pilling, R. Scott, P. Hamer, and J. Hampton
SC18-MI-IP-10 Update on capacity building and stakeholder engagement activities for WCPFC harvest strategies
F. Scott, R. Scott, N. Yao, G. M. Pilling and P. Hamer.
SC18-MI-IP-11 Catch and effort data summaries to support discussions on the new SWORDFISH CMM
SC18-MI-IP-12 Consideration of the robustness set of operating models for skipjack tuna in the WCPO
R. Scott, F. Scott, N. Yao, P. Hamer, and G. Pilling
SC18-MI-IP-13 Functions of the monitoring strategy for WCPO skipjack tuna
SC18-MI-IP-14 Data collection programme to support a management procedure for WCPO skipjack tuna
Working Papers
Information Papers
Symbol Title Files Date of Issue
SC18-EB-IP-01 Report of Project 110: Non-entangling and biodegradable FAD trial in the Western and Central Pacific Ocean
L. Escalle, G. Moreno, S. Hare and P. Hamer
SC18-EB-IP-02 Modelling drifting Fish Aggregating Devices (dFADs) trajectories arriving at essential habitats for sea turtles in the Pacific Ocean
Escalle L., Scutt Phillips J., Moreno G, Lopez J., Lynch J., Murua H., Aires-da-Silva A., Royer S.J., Hampton J., Swimmer Y., Wallace, B., Restrepo V.
SC18-EB-IP-03 Preliminarily analyses of the regional database of stranded drifting FADs in the Pacific Ocean
Escalle L., Mourot J., Bigler B., Jaugeon B., Kutan M., Lynch J.M., Nicholas T.R., Pollock K., Prioul F., Royer S.J., Thellier T., Wichman J., Jon Lopez, the PNA Office, Hare S., and Hamer P.
SC18-EB-IP-04 Progress against the 2021-2025 Shark Research Plan
SPC-OFP and Secretariat
SC18-EB-IP-05 Can Stomach Content and Microbiomes of Tuna Provide Near Real-Time Detection of Ecosystem Composition in the Pacific Ocean?
A. Trujillo-Gonzalez, T. Li, J. Potts, S. Nicol, V. Allain, S. C. Godwin, E. Vourey, A. Portal, B. Kumasi, T. Usu, A. Rodrigo and D. Gleeson
SC18-EB-IP-06 Guidelines for Non-entangling and Biodegradable FAD Materials
WCPFC FAD Management Options IWG
SC18-EB-IP-07 Review of cetacean diversity, status and threats in the Pacific Islands region 2021
Cara Miller
SC18-EB-IP-08 Harnessing stakeholder knowledge for the collaborative development of Mobulid bycatch mitigation strategies in tuna fisheries
M. Cronin, D. Croll, M. Hall, N. Lezama-Ochoa, J. Lopez, H. Murua, J. Murua, V. Restrepo, S. Rojas-Perea, J. Stewart, J. Waldo and G. Moreno
SC18-EB-IP-09 Antipodean albatross population assessment
Richard, Y.
SC18-EB-IP-10 Antipodean albatross spatial distribution and fisheries overlap
Bose, S. and Debski, I.
SC18-EB-IP-11 (Placeholder)
SC18-EB-IP-12 Graphics for Best Practices for the Safe Handling and Release of Cetaceans
Secretariat (Consultancy)
SC18-EB-IP-13 Preliminary Review of Available Information on Biodegradable FADs
WCPFC FAD Management Options IWG
SC18-EB-IP-14 Practicality and Efficacy of Tori Lines to Mitigate Albatross Interactions in the Hawaii Deep-set Longline Fishery
Gilman, E., Naholowaa, H.A., Ishizaki, A., Chaloupka, M., Brady, C., Carnes, M., Ellgen, S., Wang, J., and Kingma, E.
SC18-EB-IP-15 Could tori lines replace blue-dyed bait to reduce seabird bycatch risk in the Hawaii deep-set longline fishery?
Chaloupka, M., Gilman, E., Carnes, M., Ishizaki, A., Brady, C., Swimmer, Y., Wang, J., Ellgen, S., and Kingma, E.
SC18-EB-IP-16 Addressing key research to inform Mobula rays conservation in the Pacific Ocean
Moreno, G., Murua, J., Cronin, M., Murua, H. Ferarios, JM., Lezama, N., Swimmer, Y., and Restrepo, V.
SC18-EB-IP-17 The jelly-FAD: A paradigm shift in biodegradable FAD design
G. Moreno, J. Salvador, I. Zudaire, J. Murua, J. Pelegrí, J. Uranga, H. Murua, M. Grande, V. Restrepo
SC18-EB-IP-18 Statistical and Monte Carlo Analysis of the Hawaii Deep-Set Longline Fishery with Emphasis on Take and Mortality of Oceanic Whitetip Shark
K. Bigelow and F. Carvalho
SC18-EB-IP-19 Quantitative estimates of post-release survival rates of sharks captured in Pacific tuna longline fisheries reveal handling and discard practices that improve survivorship
M. Hutchinson, Z. Siders, J. Stahl and K. Bigelow
SC18-EB-IP-20 What’s the catch? Examining optimal longline fishing gear configurations to minimize negative impacts on non-target species
M. Scott, E. Cardona, K. Scidmore-Rossing, M. Royer, J. Stahl, and M. Hutchinson
SC18-EB-IP-21 Tori lines mitigate seabird bycatch in a pelagic longline fishery
E. Gilman, M. Chaloupka, A. Ishizaki, M. Carnes, H. Naholowaa, C. Brady, S. Ellgen, and E. Kingma
SC18-EB-IP-21 Tori lines mitigate seabird bycatch in a pelagic longline fishery
E. Gilman, M. Chaloupka, A. Ishizaki, M. Carnes, H. Naholowaa, C. Brady, S. Ellgen, and E. Kingma
SC18-EB-IP-22 Matching fishery-specific drivers of abandoned, lost and discarded fishing gear to relevant interventions
E. Gilman, J. Humberstone, J. R. Wilson, E. Chassot, A. Jackson, and P. Suuronen
Symbol Title Files Date of Issue
AR-CCM-01 Australia
AR-CCM-02 Canada
AR-CCM-03 China (10July) - Rev.01
AR-CCM-04 Cook Islands (10July) - Rev.01
AR-CCM-05 European Union
AR-CCM-06 Federated States of Micronesia
AR-CCM-07 Fiji
AR-CCM-08 French Polynesia
AR-CCM-09 Indonesia (11July) - Rev.01
AR-CCM-10 Japan (11July) - Rev.02
AR-CCM-11 Kiribati (9 July) - Rev.01
AR-CCM-12 Republic of Korea (11July) - Rev.01
AR-CCM-13 Republic of Marshall Islands
AR-CCM-14 Nauru
AR-CCM-15 New Caledonia
AR-CCM-16 New Zealand
AR-CCM-17 Niue
AR-CCM-18 Palau
AR-CCM-19 Papua New Guinea
AR-CCM-20 Philippines
AR-CCM-21 Samoa
AR-CCM-22 Solomon Islands
AR-CCM-23 Chinese Taipei
AR-CCM-24 Tokelau
AR-CCM-25 Tonga
AR-CCM-26 Tuvalu
AR-CCM-27 United States of America (10July) - Rev.02
AR-CCM-28 Vanuatu (30July) - Rev.01
AR-CCM-29 Wallis and Futuna
AR-CCM-30 {Placeholder}
AR-CCM-31 Curacao (5July) - Rev.01
AR-CCM-32 Ecuador
AR-CCM-33 El Salvador
AR-CCM-34 Liberia
AR-CCM-35 Nicaragua
AR-CCM-36 Panama
AR-CCM-37 Thailand
AR-CCM-38 Vietnam
Symbol Title Files Date of Issue
SC18-RP-JTF-01 Japan Trust Fund Status Report (2022)
Cook Islands, Kiribati, Solomon Islands, Tonga, Tuvalu, Vanuatu and Secretariat
SC18-RP-JTF-02 Japan Trust Fund Steering Committee Meeting Report (2022)
SC18-RP-P35b-01 Project 35b: WCPFC Pacific Marine Specimen Bank (19July) - Rev.01
SC18-RP-P35b-02 Report of the Pacific Marine Specimen Bank Steering Committee
PMSB-Steering Committee
SC18-RP-PTTP-01 Project 42: Pacific Tuna Tagging Project Report and Work-plan for 2022-2025
SC18-RP-PTTP-02 Project 42: Report of the Pacific Tuna Tagging Project Steering Committee
PTTP Steering Committee
SC18-RP-WPEA-01 WPEA-ITM Project Update (2Aug) - Rev.02
Lars Olsen

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