Research Papers and Refereed Articles
Non-Peer reviewed published Conference Proceedings
PowerPoint Presentations
Butterworth, D.S. Progress on MSE in some tuna RFMOs since the June 2018 workshop in Seattle. Presentation to the Global Tuna RFMO MSE workshop, Rome, 20–22 January, 2026: 17 pp
de Moor, C.L. Explicitly Incorporating Ecosystem-Based Fisheries Management (EBFM) into Management Strategy Evaluation (MSE). Presentation to the Pelagic Advisory Council’s Workshop on Furthering the implementation of EBFM through MSE, Brussels, 10 February 2026: 22 slides.
Taylor, N.G. and Butterworth, D.S. Probable Confusion: Why Our Brains, Our choices, and Our Models Can Mislead Us About Probability in MSE and Stock Assessment. Presentation to the Global Tuna RFMO MSE workshop, Rome, 20–22 January, 2026: 15 pp
ICCAT Bluefin Tuna
NAFO Redfish
Gulf Menhaden
Tristan
Johnston, S.J. Tristan Group Biomass Survey results for Jasus tristani including data from the 2025 season. MARAM/TRISTAN/2026/MAR/01: 15pp.
Johnston, S.J. Updated (and rescaled) Tristan Island GLM-standardised Jasus tristani lobster Powerboat CPUE to take account of data for the 2025 season. MARAM/Tristan/2026/MAR/02: 10pp.
Johnston, S.J. Updated 2025 GLMM-standardised lobster CPUE from Inaccessible, Nightingale and Gough islands from the Jasus tristani fishery. MARAM/Tristan/2026/APR/03: 17pp.
Johnston, S.J. Catches taken by the Powerboats, the Edinburgh and for the annual Biomass surveys at Tristan da Cunha Island since 1990. MARAM/Tristan/2026/APR/04: 3pp.
Johnston, S.J. Updated 2026 Tristan da Cunha rock lobster assessment. MARAM/Tristan/2026/MAY/05: 12pp.
Johnston, S.J. Nightingale island rock lobster (Jasus tristani) assessment updated for 2026. MARAM/TRISTAN/2026/MAY/06: 17pp.
Research for DFFE
Brandao, A. and Butterworth, D.S. Application of OMP-2020 for the toothfish (Dissostichus elegancies) resource in the Prince Edward Islands vicinity to provide a TAC recommendation for the 2026 “fishing-year”. DFFE Branch Fisheries document. FISHERIES/2025/OCT/SWG-DEM/14: 8pp.
de Moor, C.L. Changes to the likelihood of the sardine assessment. DFFE Branch Fisheries document. FISHERIES/2026/JAN/SWG-PEL/01: 14pp.
de Moor, C.L. Estimating Total Sardine recruitment and proportions by stock and coast. DFFE Branch Fisheries document. FISHERIES/2026/FEB/SWG-PEL/03: 12pp.
de Moor, C.L. Estimating total sardine recruitment and proportions by stock and coast: further work towards selecting prior distributions. DFFE Branch Fisheries document. FISHERIES/2026/APR/SWG-PEL/13: 30pp.
Johnston, S. and van der Heever, G. West coast rock lobster - further information to aid discussions regarding A3+4 low catches in the 2025/26 season. DFFE Branch Fisheries document. FISHERIES/2026/04/WCRL/01: XX pp.
Ross-Gillespie, A. and Butterworth, D.S. Summarised set of round herring results to aid the setting of the 2026 PUCL. DFFE Branch Fisheries document. FISHERIES/2026/FEB/SWG-PEL/05: 9pp.
Media articles
Butterworth, D.S. Navigating sustainability — Doug Butterworth on SA’s fishing industry challenges. Daily Maverick, 18 January 2026: 3pp