Search

Home > 2019
Research Output

2019

Research Papers and Refereed Articles

Miller, S.K., Anganuzzi, A., Butterworth, D.S., Davies, C.R., Donovan, G.P., Nickson, A., Rademeyer, R.A. and Restrepo, V. 2018. Improving communication: the key to more effective MSE processes. Can. J. Fish. Aquat. Sci. 76: 643-656 dx.doi.org/10.1139/cjfas-2018-0134.

Advanced Access

Punt, A.E., Tuck, G., Day, J., Canales, C.M., Cope, J.M., de Moor, C.L., De Oliveira, J.A.A., Dickey-Collas, M., Elvarsson, B., Haltuch, M.A., Hamel, O.S., Hicks, A., Legault, C.M., Lynch, P.D., and Wilberg, M.J. When are model-based stock assessments rejected for use in management and what happens then? Accepted to Fisheries Research.

Non-Peer reviewed published Conference Proceedings

Carruthers, T. and Butterworth, D.S. 2019. A mixture model interpretation of stock or origin data for Atlantic bluefin tuna. SCRS/2018/133: Collect. Vol. Sci. Pap. ICCAT, 75(6): 1363-1372 (2019): 10pp.
Carruthers, T. and Butterworth, D.S. 2019. Updated summary of conditioned operating models for Atlantic bluefin tuna. SCRS/2018/134: Collect. Vol. Sci. Pap. ICCAT, 75(6): 1373-1391 (2019): 19pp.
Butterworth, D.S., Miyagawa, M. and Jacobs, M.R.A. 2018. Results for initial explorations of simple candidate “fixed proportion” MPs for Atlantic bluefin tuna based on the operating models package circulated. SCRS/2018/047: Collect. Vol. Sci. Pap. ICCAT, 75(6): 1182-1200 (2019): 18pp.
Butterworth, D.S., Miyagawa, M. and Jacobs, M.R.A. 2018. Further investigations of simple “fixed proportion” candidate management procedures for North Atlantic Bluefin tuna using operating model package version 3.3.0. SCRS/2018/181: Collect. Vol. Sci. Pap. ICCAT, 75(6): 1552-1575 (2019): 24pp.
Butterworth, D.S., Fernandez, C. and Carruthers, T. 2018. Chair and Rapporteurs’ report of Bluefin MSE Technical Group meeting over 24-25 September 2018. SCRS/2018/183: Collect. Vol. Sci. Pap. ICCAT, 75(6): 1576-1586 (2019): 11pp.

Unpublished Research/Technical/Policy Documents

Brandão, A., Vermeulen, E. and Butterworth, D.S. 2019. . Updated application of a photo-identification based assessment model to southern right whales in South African waters to include data up to 2018. International Whaling Commission: SC/68a/SH14: 15pp.
Butterworth, D.S., Jacobs, M.R.A., Rademeyer, R.A. and Miyagawa, M. 2019. Application of “fixed proportion” candidate management procedures for north Atlantic bluefin tuna using operating model package version 5.2.3. SCRS/2019/130: Collect. Vol. Sci. Pap. ICCAT, 76(1): 139-143.
Costello, C., Cao, L., Gelcich, S., Cisneros, M.A., Free, C.M., Froehlich, H.E., Galarza, E., Golden, C.D., Ishimura, G., Macadam-Somer, I., Maier, J., Mangin, T., Melnychuk, M.C., Miyahara, M., de Moor, C., Naylor, R., Nøstbakken, L., Ojea, E., O’Reilly, E., Osio, G.C., Parma, A.M., Amargos, F.P., Plantinga, A.J., Tacon, A. and Thilsted, S.H. 2019. PThe future of food from the sea. Washington, DC: World Resources Institute. Available online at www.oceanpanel.org/future-food-sea.

PowerPoint Presentations

Butterworth, D.S. 2019. More successful MSE/MP implementation – what’s needed? Presentation to ICES WKGMSE2: second Workshop on Guidelines for Management Strategy Evaluation Meeting, JRC Ispra, February 4-8, 2019: 8pp.
Butterworth, D.S.  2019. Best Assessment vs Management Procedure based management. Presentation to North Pacific Fisheries Commission Biological Reference Point/Harvest Control Rule/Management Strategy Evaluation Workshop, Yokohama, 4-5 March 2019: 17pp.
Butterworth, D.S. 2019. An illustration of a working management procedure South African hake. Presentation to North Pacific Fisheries Commission Biological Reference Point/Harvest Control Rule/Management Strategy Evaluation Workshop, Yokohama, 4-5 March 2019: 33p.
Butterworth, D.S. and Ross-Gillespie, A.  2019. Proposal for a common simple and widely applicable model for right whale population assessments. Presented to the SORP right whale theme workshop, Barcelona, 8 December 2019: 5pp.
de Moor, C.L.   2019. Sardine projections based on constant catch scenarios. Presentation to the Small Pelagic Scientific Working Group, Cape Town, 4 April 2019: 12pp.
de Moor, C.L.   2019. Comparing the 2018 survey estimated sardine biomass to carrying capacity. Presentation to the Small Pelagic Scientific Working Group, Cape Town, 7 August 2019: 8pp.
de Moor, C.L.   2019. The acceptable level of risk for the South African sardine resource. Presentation to the Small Pelagic Scientific Working Group, Cape Town, 7 August 2019: 14pp.
de Moor, C.L.  2019. Is OMP-18 robust to alternative assumptions about anchovy dynamics? Presentation to the Small Pelagic Scientific Working Group, Cape Town, 7 August 2019: 10pp.
Johnston, S.J.  2019. . West coast rock lobster fishery. Presentation to the International Stock Assessment Workshop, University of Cape Town, 2-6 December 2019: 19pp.

Southern Bluefin Tuna

Butterworth, D.S., Jacobs, M.R.A., Rademeyer, R.A. and Miyagawa, M.  2019. Further exploratory investigations of some simple candidate management procedures for southern bluefin tuna. Paper presented to the CCSBT OMMP meeting, Seattle, 21-29 June 2019. CCSBT-OMMP/1906/11: 14pp.
Butterworth, D.S., Jacobs, M.R.A., Rademeyer, R.A. and Miyagawa, M.   2019. Simple target-based CMPs for southern bluefin tuna. Document submitted to the 24th Meeting of the CCSBT Extended Scientific Committee, Cape Town, 2-7 September 2019. CCSBT-ESC/1909/30: 15pp.

Gulf Menhaden

Butterworth, D.S. and Rademeyer, R.A. 2019. . An initial illustrative example of the application of MSE to Gulf Menhaden to address issues related to MSC certification of ecosystem-related reference points. Submitted to ad hoc meeting on future management of the Gulf Menhaden fishery, New Orleans, 28 January 2019: 17pp.
Butterworth, D.S. and Rademeyer, R.A. 2019. Extensions of the application of MSE to Gulf Menhaden. Document presented to the Gulf States Marine Fisheries Commission Stakeholder Workshop on Management Reference Points for Gulf Menhaden Fisheries, June 17-19, 2019, New Orleans: 39pp.

Tristan

Johnston, S.J. 2019. Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season. MARAM document: MARAM/TRISTAN/2019/JAN/02: 16pp.
Johnston, S.J. and Butterworth, D.S. 2019. Updated 2019 GLMM-standardised lobster CPUE from the Tristan da Cunha outer group of islands. MARAM document: MARAM/TRISTAN/2019/FEB/01: 16pp.
Johnston, S.J. and Butterworth, D.S. 2019. Shifts in catch-at-length proportions for the Tristan group lobster fisheries. MARAM document: MARAM/TRISTAN/2019/APR/03: 1pp.
Johnston, S.J. and Butterworth, D.S. 2018. Shifts in catch-at-length proportions for the Tristan group lobster fisheries. MARAM document: MARAM/TRISTAN/2019/APR/03: 1pp. Johnston, S.J. and Butterworth, D.S. 2019. MARAM work progress from February 2018 to March 2019, and future plans. MARAM document: MARAM/TRISTAN/2019/APR/04: 3pp.
Johnston, S.J. and Butterworth, D.S. 2019. Updated (and rescaled) Tristan GLM-standardised lobster CPUE to take account of data for the 2018 season. MARAM document: MARAM/TRISTAN/2019/MAY/05: 10pp.
Butterworth, D.S. and Johnston, S.J. 2019. . Recommendations on rock lobster TACs for the Tristan group of islands for the 2019/20 season. MARAM document: MARAM/TRISTAN/2019/MAY/06: 7pp.
Butterworth, D.S. and Johnston, S.J. 2019. Summary of recommendations on rock lobster TACs for the Tristan group of islands for the 2019/20 season. MARAM document: MARAM/TRISTAN/2019/MAY/07: 1pp.
Johnston, S.J. 2019. Nominal CPUE for the catches taken by the Edinburgh/Geo Searcher off Tristan da Cunha island. MARAM document: MARAM/TRISTAN/2019/JUN/08: 2pp.

Consultancy and Other Activities Based on Expertise Developed in Research

Brandão, A., Butterworth, D.S. and Durholtz, D. 2019. Continuation of the development of an OMP for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands region. DAFF Branch Fisheries document: FISHERIES/2019/MAR/SWG-DEM/02: 5pp.
Brandão, A., Butterworth, D.S. 2019. Conditioning of the Reference Set of Operating Models for the toothfish resource in the Prince Edward Islands vicinity. DAFF Branch Fisheries document: FISHERIES/2-019/MAR/SWG-DEM/04/CORRECTED: 12pp.
Brandão, A., Butterworth, D.S. 2019. An updated “Replacement Yield” model fit to catch the survey data for the south coast and for the west coast kingklip resource of South Africa. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/19: 12pp.
Brandão, A., Butterworth, D.S. 2019. Updated GLMM standardised trotline CPUE series for the toothfish resource in the Prince Edward Islands EEZ to include data for the 2018 season. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SSWG-DEM/24:7pp.
Brandão, A., Butterworth, D.S. 2019. Initial results for a further four Candidate Management Procedures for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity. DAFF Branch Fisheries document: FISHERIES/2019/0CT/SWG-DEM/27: 27pp.
Brandão, A., Butterworth, D.S. 2019. Stochastic projections for the 2019 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/33: 5pp.
Brandão, A., Butterworth, D.S. 2019. Updated assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edwards Islands vicinity to include data from1997 to 2018. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/34: 17pp.
Brandão, A., Butterworth, D.S. 2019. Results related to possible changes in the efficiency of the vessel Koryo Maru as estimated from the trotline CPUE for PEI toothfish. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/35: 2pp.
Brandão, A., Butterworth, D.S. 2019. Stochastic projections for the 2019 Base case assessment model of the toothfish resource that take cetacean predation into account. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/39: 2pp.
Brandão, A., Butterworth, D.S. 2019. Initial results for a simple Initial Candidate Management Procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/PTTT/01: 27pp.
Brandão, A., Butterworth, D.S. 2019. Further results for three simple initial Candidate Management Procedures for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/PTTT/02: 40pp.
Brandão, A., Butterworth, D.S. 2019. Trends in poaching for West Coast rock lobster from modelling the “old” and the “new” databases simultaneously. DAFF Branch Fisheries document: FISHERIES/2019/APR/SWG-WCRL/02: 11pp.
Brandão, A., Butterworth, D.S. 2019. Updated analyses of the fisheries independent monitoring survey data of the rock lobster resource of South Africa to include the 2018/19 season. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-WCRL/07: 19pp.
Brandão, A., Butterworth, D.S. 2019. Trends in poaching for west coast rock lobster from modelling the “old” and the “new” databases simultaneously updated to 2018. DAFF Branch Fisheries document: FISHERIES/2019/JUL/SWG-WCRL/14: 11pp.
Brandão, A., Butterworth, D.S. 2019. Trends in poaching for west coast rock lobster from modelling the “old” and the “new” databases simultaneously updated to 2018. MARAM/IWS/2019/WCRL/P1: 11pp.
Butterworth, D.S. and Coetzee, J. 2019. Basis suggested, following task group discussions, for determining the 2019 sardine directed TAC and by-catch TAB. DAFF Branch Fisheries document: FISHERIES/2019/APR/SWG-PEL/08: 2pp.
Butterworth, D.S. and Ross-Gillespie, A. 2019. Is pseudo-replication biasing results from analyses from the island closure experiment which model individual penguin responses directly? DEA Fisheries document: FISHERIES/2019/NOV/SWG-PEL/34: 9pp. (Also MARAM/IWS/2019/PENG/P5)
Butterworth, D.S. 2019. Comments on Winker and Sherley’s brief reply to FISHERIES/NOV/2019/SWG-PEL34. DEA Fisheries document: FISHERIES/NOV/2019/SWG-PEL/38: 3pp.
Butterworth, D.S. 2019. Response to comments on Winker and Sherley’s brief reply to FISHERIES/NOV/2019/SWG-PEL/34. DEA Fisheries document: FISHERIES/NOV/2019/SWG-PEL/40: 4pp.
Butterworth, D.S. 2019. Preparing for penguin analyses needed arising from comments from the 2019 and previous International Stock Assessment Workshops. DEA Fisheries document: FISHERIES/2019/DEC/SWG-PEL/45: 4pp.
Butterworth, D.S. 2019. Some inferences from an overview of genetic and other information regarding some key aspects of M.paradoxus stock structure off South Africa and Namibia. DAFF Branch Fisheries document|: FISHERIES/2019/AUG/SWG-DEM/11: 7pp.
Butterworth, D.S. and Glazer, J.P. 2019. IFurther sole dynamic Schaefer production model results. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/42: 9pp.
Butterworth, D.S. and Glazer, J.P. 2019. Response to MARAM/IWS/2019/PENG/P6. MARAM/IWS/2019/PENG/P7rev: 9pp.
Butterworth, D.S. and Ross-Gillespie, A. 2019. A summary of the South African sardine (and anchovy) fishery. MARAM/IWS/2019/Sardine/BG1: 14pp.
de Moor, C.L. 2019. Assessment of the South African sardine resource using data from 1984-2018: Initial results at the joint posterior mode for the two mixing-component hypothesis. DAFF Branch Fisheries document: FISHERIES/2019/FEB/SWG-PEL/01: 30pp.
de Moor, C.L. 2019. Initial sardine projections based on constant catch scenarios. DAFF Branch Fisheries document: FISHERIES/2019/FEB/SWG-PEL/05rev: 40pp.
de Moor, C.L. 2019. Revision to the Initial Assessment of the South African sardine resource using data from 1984-2018. DAFF Branch Fisheries document: FISHERIES/2019/MAR/SWG-PEL/06: 19pp.
de Moor, C.L. 2019. Sardine projections based on constant catch scenarios. DAFF Branch Fisheries document: FISHERIES/2019/APR/SWG-PEL/07: 28pp.
de Moor, C.L., Coetzee, J., Merkle, D. and van der Lingen, C.D. 2019. The data used in the 2019 initial sardine assessment. DAFF Branch Fisheries document: FISHERIES/2019/APR/SWG-PEL/14: 8pp.
de Moor, C.L. 2019. Comparing the 2018 survey estimated sardine biomass to carrying capacity. DAFF Branch Fisheries document: FISHERIES/2019/JUN/SWG-PEL/15: 5pp.
de Moor, C.L. 2019. The acceptable level of risk for the South African sardine resource. DAFF Branch Fisheries document: FISHERIES/2019/JUL/SWG-PEL/16: 10pp.
de Moor, C.L. 2019. Is OMP-18 robust to alternative assumptions about anchovy dynamics? DAFF Branch Fisheries document: FISHERIES/2019/JUL/SWG-PEL/17: 9pp.
de Moor, C.L. 2019. Final anchovy TAC for 2019, using OMP-18. DAFF Branch Fisheries document: FISHERIES/2019/JUL/SWG-PEL/19: 3pp.
de Moor, C.L., Merkle, D., Coetzee, J. and van der Lingen, C.D. 2019. The data used in the 2019 sardine assessment. DEA Fisheries document: FISHERIES/2019/SWG-PEL/22: 24pp.
de Moor, C.L. 2019. Progress towards updating the assessment of the South African sardine resource using data from 1984-2018. DEA Fisheries document: FISHERIES/2019/NOV/SWG-PEL/29: 52pp.
de Moor, C.L. and Coetzee, J.C. 2019. Proposal for an interim initial anchovy TAC for 2020. DEA Fisheries document: FISHERIES/2019/DEC/SWG-PEL/42: 3pp.
de Moor, C.L., Coetzee, J.C. and Butterworth, D.S. 2019. Uncertainties and associated concerns relating to using short-term projections to advise on the 2020 sardine TAC and TABs. MARAM/IWS/2019/Sardine/P3: 52pp.
de Moor, C.L. and Butterworth, D.S. 2019. Progress on recommendations from the 2018 review panel report. MARAM/IWS/2019/Sardine/BG2: 4pp.
Glazer, J.P., Butterworth, D.S. and Durholtz, D. 2019. Updated calculations related to the additional closed season. DAFF Branch Fisheries document: FISHERIES/2019/MAR/SWG-SQ/14: 3pp.
Johnston, S.J. and Butterworth, D.S. 2019. The 2018 south coast rock lobster reference case operating model. DAFF Branch Fisheries document: FISHERIES/2019/APR/SWG-SCRL/01: 30pp.
Johnston, S.J. and Butterworth, D.S. 2019. 2018 updated south coast rock lobster assessment results. DAFF Branch Fisheries document: FISHERIES/2019/APR/SWG-SCRL/02: 19pp.
Johnston, S.J. and Butterworth, D.S. 2019. SCRL OMP-2019 simulation testing and initial development proposals. DAFF Branch Fisheries document: FISHERIES/2019/APR/SCRL/03: 9pp.
Johnston, S.J. and Butterworth, D.S. 2019. Application of a minor variant of OMP-2014 to the updated base case operating model for the SCRL resource. DAFF Branch Fisheries document: FISHERIES/2019/JUN/SCRL/05(REV): 7pp.
Johnston, S.J. and Butterworth, D.S. 2019. Johnston, S.J. and Butterworth, D.S. 2019. Further CMP results for the SCRL resource. DAFF Branch Fisheries document: FISHERIES/2019/JUL/SCRL/07: 11pp.
Johnston, S.J., Butterworth, D.S. and Glazer, J.P. 2019. South coast rock lobster OMP 2019. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-SCRL/10: 14pp.
Johnston, S.J. 2019. South coast rock lobster TAC for the 2019 season. DAFF Branch Fisheries document: FISHERES/2019/AUG/SWG-SCRL/11: 3pp.
Johnston, S.J. and Butterworth, D.S.  2019. Comparison between methods of estimating future recruitment for west coast rock lobster projections for super-area A8+. DAFF Branch Fisheries document: FISHERIES/2019/JUN/WCRL/04: 7pp.
Johnston, S.J. and Butterworth, D.S. 2019. Comparison between methods of estimating historical and future recruitment for the west coast rock lobster super-areas. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-WCRL/15: 20pp.
Johnston, S.J. and Butterworth, D.S. 2019. Stochastic projections for west coast rock lobster. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-WCRL/16: 7pp.
Johnston, S.J. 2019. WCRL Task Team proposals for WCRL poaching trends to be used in 2019 updated assessments. DAFF Branch Fisheries document|: FISHERIES/2019/JUL/SWG-WCRL/17: 9pp.
Johnston, S.J. and Butterworth, D.S. 2019. Proposed poaching time series for use in final population models. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-WCRL/19: 4pp.
Johnston, S.J. and Butterworth, D.S. 2019. Final updated 2019 assessments and projections of west coast rock lobster for different poaching scenarios. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-WCRL/20: 22pp.
Johnston, S.J. and Butterworth, D.S. 2019. Summary of past recovery targets for west coast rock lobster. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-WCRL/21: 2pp.
Johnston, S.J. and Butterworth, D.S. 2019. Updated horse mackerel assessments and projections. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/25: 22pp.
Johnston, S.J. and Butterworth, D.S. 2019. Further 2019 horse mackerel assessments and projections. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/30: 31pp.
Johnston, S.J. and Butterworth, D.S. 2019. Why the horse-mackerel survey data require changes in selectivity over time. DAFF Branch Fisheries document: FISHERIES2019/OCT/SWG-DEM/31: 3pp.
Johnston, S.J. and Butterworth, D.S. 2019. Yet further 2019 horse mackerel assessments and projections. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/43: 18pp.
Johnston, S.J. and Butterworth, D.S. 2019. Updates to west coast rock lobster assessments and projections made in 2019 taking account of recommendations made by IWS 2018 panel. MARAM/IWS/2019/WCRL/P2: 20pp.
Johnston, S.J. and Butterworth, D.S. 2019. Recent assessment and projection sensitivities pursued for west cost rock lobster. MARAM/IWS/2019/WCRL/P3: 18pp.
Johnston, S.J. and Butterworth, D.S. 2019. Including stock-recruitment relationships in west coast rock lobster projections. MARAM/IWS/2019/WCRL/P4: 18pp.
Johnston, S.J. and Butterworth, D.S. 2019. Poaching time series for use in final west coast rock lobster population models. MARAM/IWS/2019/WCRL/BG2: 4pp.
Johnston, S.J. and Butterworth, D.S. 2019. Responses to IWS 2018 workshop recommendations made with respect to west coast rock lobster. MARAM/IWS/2019/WCRL/BG3: 6pp.
Rademeyer, R.A., Butterworth, D.S. and Ross-Gillespie, A. 2019. Specifications of the South African Hake 2019 Reference Case Assessment. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-DEM/10rev: 45pp.
Ross-Gillespie, A. and Butterworth, D.S. 2019. Updated specifications, conditioning results and projections for the Hake OMP2018 Reference Set models. DAFF Branch Fisheries document: FISHERIES/2019/MAR/SWG-DEM/03: 49pp.
Ross-Gillespie, A., Butterworth, D.S., Glazer, J.P. and Fairweather, T.P. 2019. The 2018 Operation Management Procedure for the South African Merluccius paradoxus and M. capensis Resources. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-DEM/09: 29pp.
Ross-Gillespie, A. and Butterworth, D.S. 2019. Results for a selection of robustness tests re-run for the updated 2019 Hake Reference Set. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/21: 13pp.
Ross-Gillespie, A. and Butterworth, D.S. 2019. Update to the hake Reference Case model incorporating the 2018 commercial and 2019 survey data. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/22rev: 14pp.
Johnston, S.J. and Butterworth, D.S.  2019. A summary of the west coast rock lobster fishery. MARAM/IWS/2019/WCRL/BG1: 11pp.
Johnston, S.J. and Butterworth, D.S.  2019. Poaching time series for use in final west coast rock lobster population models. MARAM/IWS/2019/WCRL/BG2: 4pp.
Johnston, S.J. and Butterworth, D.S.  2019. Responses to IWS 2018 workshop recommendations made with respect to west coast rock lobster. MARAM/IWS/2019/WCRL/BG3: 6pp.
Johnston, S.J. and Butterworth, D.S.  2019. Responses to IWS 2018 workshop recommendations made with respect to west coast rock lobster. MARAM/IWS/2019/WCRL/BG3: 6pp.
Rademeyer, R.A., Butterworth, D.S. and Ross-Gillespie, A.  2019. Specifications of the South African Hake 2019 Reference Case Assessment. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-DEM/10rev: 45pp.
Ross-Gillespie, A. and Butterworth, D.S.  2019. Updated specifications, conditioning results and projections for the Hake OMP2018 Reference Set models. DAFF Branch Fisheries document: FISHERIES/2019/MAR/SWG-DEM/03: 49pp. (Also MARAM/IWS/2019/Hake/BG10)
Ross-Gillespie, A., Butterworth, D.S., Glazer, J.P. and Fairweather, T.P.   2019. The 2018 Operation Management Procedure for the South African Merluccius paradoxus and M. capensis Resources. DAFF Branch Fisheries document: FISHERIES/2019/AUG/SWG-DEM/09: 29pp.
Ross-Gillespie, A. and Butterworth, D.S.  2019. Results for a selection of robustness tests re-run for the updated 2019 Hake Reference Set. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/21: 13pp.
Ross-Gillespie, A. and Butterworth, D.S.  2019. Update to the hake Reference Case model incorporating the 2018 commercial and 2019 survey data. DAFF Branch Fisheries document: FISHERIES/2019/OCT/SWG-DEM/22rev: 14pp. (Also MARAM/IWS/2019/Hake/BG11)
Ross-Gillespie, A. and Butterworth, D.S.  2019. 2019 Updated GLMM results for the south coast penguin colony foraging data. DEA Fisheries document: FISHERIES/2019/NOV/SWG-PEL/27rev: 12pp. (Also MARAM/IWS/2019/PENG/P2: 12pp)
Ross-Gillespie, A. and Butterworth, D.S.  2019. Results for GLMM analyses of the south coast penguin colony chick condition data. DEA Fisheries document: FISHERIES/2019/NOV/SWG-PEL/33: 5pp. (Also MARAM/IWS/2019/PENG/P3: 5pp)
Ross-Gillespie, A.  2019. Some clarification of plots in FISHERIES/NOV/2019/SWG-PEL/34. DEA Fisheries document: FISHERIES/NOV/2019/SWG-PEL/39rev: 2pp.
Ross-Gillespie, A. and Butterworth, D.S.  2019. Response to the review panel report for the 2018 International Stock Assessment workshop: Hake. MARAM/IWS/2019/Hake/BG1: 3pp.