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Research Output

2008

Research Papers and Refereed Articles

Branch TA and Mikhalev Y. Regional differences in length at sexual maturity for female blue whales based on recovered Soviet whaling data. Marine Mammal Science 24: 690–703.
Butterworth DS. A commentary on: salvaged pearls: lessons learned from a floundering attempt to develop a management procedure for Southern Bluefin Tuna. Fisheries Research 94: 351–354.
Butterworth DS and Rademeyer RA. Statistical catch-at-age analysis vs. ADAPT-VPA: the case of Gulf of Maine cod. ICES Journal of Marine Science, 65: 1717–1732.
Coetzee JC, Merkle D, de Moor (formerly Cunningham) CL, Twatwa NM, Barange M, and Butterworth DS. Refined estimates of South African pelagic fish biomass from hydro-acoustic surveys: quantifying the effects of target strength, signal attenuation and receiver saturation. African Journal of Marine Science 30(2): 205–217.
de Moor CL, Butterworth DS, and Coetzee JC. Revised estimates of abundance of South African sardine and anchovy from acoustic surveys adjusting for echosounder saturation in earlier surveys and attenuation effects for sardine. African Journal of Marine Science 30(2): 219–232.
Edwards CTT and Plagányi ÉE. Participatory assessment of the South African abalone resource and its impact on predicted population trajectories. South African Journal of Science 104: 185–191.
Rademeyer RA, Butterworth DS, and Plagányi ÉE. A history of recent bases for management and the development of a species-combined Operational Management Procedure for the South African hake. African Journal of Marine Science 30: 291–310.
Rademeyer RA, Butterworth DS, and Plagányi ÉE. Assessment of the South African Hake resource taking its two-species nature into account. African Journal of Marine Science 30: 263–290.

Peer reviewed Published Conference Proceedings

Butterworth, D.S. Why fisheries reference points miss the point. Pages 215–222. In: J.L. Nielsen, J.J. Dodson, K. Friedland, T.R. Hamon, J. Musick, and E. Verspoor, editors. Reconciling fisheries with conservation: proceedings of the Fourth World Fisheries Congress. American Fisheries Society, Symposium 49, Bethesda, Maryland.
Butterworth, D.S. Session Summary. The ecological dimensions in achieving the reconciliation of fisheries with conservation. Pages 209–210. In: J.L. Nielsen, J.J. Dodson, K. Friedland, T.R. Hamon, J. Musick, and E. Verspoor, editors. Reconciling fisheries with conservation: proceedings of the Fourth World Fisheries Congress. American Fisheries Society, Symposium 49, Bethesda, Maryland.
Butterworth, D.S., Rademeyer, R.A. and Sosebee, K.A. Georges Bank/Gulf of Maine white hake. In Northeast Fisheries Science Center. Assessment of 19 Northeast Groundfish Stocks through 2007: Report of the 3rd Groundfish Assessment Review Meeting (GARM III), Northeast Fisheries Science Center, Woods Hole, Massachusetts, August 4–8, 2008. US Department of Commerce, NOAA FIsheries, Northeast Fisheries Science Center Ref Doc. 08–15; 884 p + xvii: 590–642.
Plagányi, É.E. and Butterworth, D.S. Competition between marine mammals and fisheries—can we successfully model this using ECOPATH with ECOSIM? Pages 1073–1087. In: J.L. Nielsen, J.J. Dodson, K. Friedland, T.R. Hamon, J. Musick, and E. Verspoor (eds). Reconciling fisheries with conservation: proceedings of the Fourth World Fisheries Congress. American Fisheries Society, Symposium 49, Bethesda, Maryland.
Plagányi, É.E. and Butterworth, D.S. Does classic stock assessment have a role in a failed case of reconciliation of fisheries with conservation? Pages 1371–1387. In: J.L. Nielsen, J.J. Dodson, K. Friedland, T.R. Hamon, J. Musick, and E. Verspoor (eds). Reconciling fisheries with conservation: proceedings of the Fourth World Fisheries Congress. American Fisheries Society, Symposium 49, Bethesda, Maryland.

Conference abstracts [posters]

  Robinson, W. and Plagányi, É.E. Penguin risk assessment incorporated in a pelagic fishery Management Procedure. 5th World Fisheries Congress, Yokohama, 20–24 Oct. [poster]

University Publications and Works of a Popular Nature

  Plagányi, É.E. and Case, J. Girls doing science—Why maths counts. Quest 4(3): 41–42.

Unpublished Research/Technical/Policy Documents

Brandão, A. and Butterworth, D.S. Production model based estimates of lower confidence limits for the abundance of West Greenland minke whales. International Whaling Commission document: SC/60/AWMP09: 1–17.
Brandão, A. and D.S. Butterworth. A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity. Commission for the Conservation of Antarctic Marine Living Resources Document: WG–SAM–08/11: 1–29.
Butterworth, D.S. Report of FAO workshop on "Modelling ecosystem interactions for informing an ecosystem approach to fisheries", Tivoli, Italy, 3–6 July 2007. International Whaling Commission document: SC/60/EM4: 1–2.
Cooke, J., Baker, S., Butterworth, D.S., Kato, H., Pastene, L., Walloe, L. and Brownell, R. Preparation for a comprehensive assessment of North Pacific sei whales. Journal of Cetacean Research and Management 10 (Suppl.): 190–193.
Donovan, G.P., Butterworth, D.S., Pastene, L.A., Punt, A.E. and Morishita, J. Suggestions for a way forward to further evaluate ageing error for Southern Hemisphere minke whales. Journal of Cetacean Research and Management 10 (Suppl.): 188–189.
Givens, G.H, Laidre, K., Witting, L., Butterworth, D.S. and Heide-Jorgensen, M-P. Investigation and implications of spatial and temporal patterns in sex ratio data from West Greenland minke whale catches. Journal of Cetacean Research and Management 10 (Suppl.): 148–149.
Hill, S., Hinke, J., Plagányi, É.E. and Watters, G. Reference observations for validating and tuning operating models for krill fishery management in area 48. Commission for the Conservation of Antarctic Marine Living Resources Document: WG–EMM–08/10: 1–16.
Johnston, S.J. Summary of the data and information available for the assessment of breeding stock C of the Southern Hemisphere humpback whales. International Whaling Commission document: SC/60/SH36: 1–7.
Johnston, S.J. and Butterworth, D.S. Capture-recapture analyses of humpback population sizes and increase rates: breeding stocks C1–C3. International Whaling Commission document: SC/60/SH37rev: 1–27.
Johnston, S.J. and Butterworth, D.S. Updated assessments of Southern Hemisphere humpback whale breeding stock C and its component sub-stocks. International Whaling Commission document: SC/60/SH38rev: 1–18.
Johnston, S.J. Summary of the data and information available for the assessment of breeding stock B of the Southern Hemisphere humpback whales. International Whaling Commission document: SC/60/SH39: 1–4.
Johnston, S.J. and Butterworth, D.S. Capture-recapture analyses of humpback whale population sizes and increase rates: breeding sub-stock B1. International Whaling Commission document: SC/60/SH40: 1–9.
Johnston, S.J. and Butterworth, D.S. Updated assessments of Southern Hemisphere humpback whale breeding sub-stock B1. International Whaling Commission document: SC/60/SH41rev: 1–10.
Mori, M. and Butterworth, D.S. Some modifications to the current ADAPT-VPA model for Antarctic minke whales. International Whaling Commission document: SC/60/IA13: 1–5.
Okamura, H., Kitakado, T. and Butterworth, D.S. Approximate calculation of sub-area level additional CVs based on revised abundance estimates for conditioning ISTs. Journal of Cetacean Research and Management 10 (Suppl.): 113–114.
Plagányi, É.E. and Butterworth, D.S. Conditioning SMOM using the agreed calendar of observed changes in predator and krill abundance: A further step in the development of a 4 management procedure for krill fisheries in Area 48. Commission for the Conservation of Antarctic Marine Living Resources Document: WG–EMM–08/44: 1–19.
Plagányi, É.E. and Butterworth, D.S. An updated description and parameterisation of the spatial multi-species Operating Model (SMOM). Commission for the Conservation of Antarctic Marine Living Resources Document: WG–SAM–08/17: 1–34.

Consultancy and Other Activities Based on Expertise Developed in Research

  Blamey, L. and Plagányi, É.E. EAF considerations for Abalone—summary of East of Cape Hangklip multispecies model. Marine and Coastal Management document: MCM/2008/AUG/SWG–AB/01: 1–4.
Brandão, A. and D.S. Butterworth. An updated assessment of the South African kingklip resource including some sensitivity tests. Marine and Coastal Management document: MCM/2008/FEB/SWG-DEM/03 Rev2: 1–26.
Brandão, A. and D.S. Butterworth. A "Replacement Yield" model fit to catch and survey data for the south coast kingklip resource of South Africa. Marine and Coastal Management document: MCM/2008/FEB/SWG-DEM/07: 1–8.
  Brandão, A. and D.S. Butterworth. Data required for the planned assessment of the South African kingklip resource in 2008. Marine and Coastal Management document: MCM/2008/JUL/SWG-DEM/36: 1–1.
  Brandão, A. and D.S. Butterworth. Plans for assessment analyses for the South African kingklip resource in 2008. Marine and Coastal Management document: MCM/2008/SEP/SWG-DEM/53: 1–1.
Brandão, A. and D.S. Butterworth. Data presently available for the South African kingklip resource assessment. Marine and Coastal Management document: MCM/2008/OCT/SWG-DEM/61: 1–9.
Brandão, A. and D.S. Butterworth. Updated assessment of the South African kingklip resource including an initial attempt at including catch-at-length data. Marine and Coastal Management document: MCM/2008/NOV/SWG-DEM/75: 1–30.
  Brandão, A. and D.S. Butterworth. Initial assessment of the South Coast kingklip resource (in isolation) including catch-at-length data. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/K/2: 1–16.
Butterworth, D.S. On the suggestion that a Traffic Light-based management system be considered for the South African squid resource. Marine and Coastal Management document: SWG–04–08–SQ3: 1–4.
Butterworth, D.S. and Rademeyer, R.A. A preliminary SCAA/ASPM assessment of white hake. US North East Fisheries Science Centre GARM WP4.L.1: 1–12.
Butterworth, D.S. and Rademeyer, R.A. SCAA/ASPM assessments of white hake incorporating data to 2007. US North East Fisheries Science Centre GARM WP1.L.b: 1–15.
Butterworth, D.S. and Rademeyer, R.A. Statistical catch-at-age analysis vs ADAPT-VPA: the case of Gulf of Maine cod. GARM-III working paper 2.2–a: 1–70.
Butterworth, D.S. and Rademeyer, R.A. Updated SCAA/ASPM assessment of Gulf of Maine Cod. US North East Fisheries Science Centre GARM WP4.F.1: 1–29.
Butterworth, D.S. and Rademeyer, R.A. Addendum: Updated SCAA/ASPM assessment of Gulf of Maine Cod. US North East Fisheries Science Centre GARM WP4.F.1a: 1–4.
Butterworth, D.S. and Rademeyer, R.A. On drawing inferences concerning trends in selectivity with age from tag-recapture information. Supplement 2 to GARM-III TOR2: 1–7.
Butterworth, D.S. and Rademeyer, R.A. On the implication of tagging analyses for the shape of selectivity at age for Gulf of Maine Cod. US North East Fisheries Science Centre GARM WP4.8 (Supplementary): 1–5.
Butterworth, D.S. and Rademeyer, R.A. Some further runs of ASPM/SCAA for Gulf of Maine Cod. US North East Fisheries Science Centre GARM WP4.8a: 1–4.
Butterworth, D.S. and Rademeyer, R.A. Further SCAA/ASPM assessments of Gulf of Maine Cod including data for 2007 and exploring the impact of age-dependence in natural mortality. US North East Fisheries Science Centre GARM WP1.F.b: 1–17.
Butterworth, D.S. and Rademeyer, R.A. Addendum: Further SCAA/ASPM assessments of Gulf of Maine Cod including data for 2007 and exploring the impact of age-dependence in natural mortality. US North East Fisheries Science Centre GARM Addendum 1.F.b: 1–6.
Butterworth, D.S. and Rademeyer, R.A. Application of an Age-Structured Production Model to the Georges Bank Yellowtail Flounder. GARM-III working paper 2.5: 1–18.
Butterworth, D.S. and Rademeyer, R.A. Suggested timetable for assessment-related analyses for the South African hake resource. Marine and Coastal Management document: MCM/2008/JUN/SWG-DEM/11: 1–3.
  Butterworth, D.S. A brief summary regarding the status of and prospects for the South African hake resource. Marine and Coastal Management document MCM/2008/NOV/SWG-DEM/74: 1–4.
Butterworth, D.S., Rademeyer, R.A. and Johnston, S.J. Estimates of sustainable rock lobster yield for the four islands of the Tristan da Cunha group. Document MARAM/TRISTAN/08/Jun/01: 1–8.
Butterworth, D.S. Implications of a new survey estimate of the size of the West Coast rock lobster recreational catch. Document MCM/2008/JUL/SWG-WCRL/08: 1–3.
Cunningham, C.L. and Butterworth, D.S. Re-evaluation of risk thresholds for sardine and anchovy. Marine and Coastal Management document: MCM/2008/SWG–PEL/01: 1–7.
Cunningham, C.L. and Butterworth, D.S. Exceptional circumstances provisions for OMP-08: initial evaluations. Marine and Coastal Management document: MCM/2008/SWG–PEL/02: 1–21.
Cunningham, C.L. and Butterworth, D.S. Data available for SARP analyses. Marine and Coastal Management document: MCM/2008/SWG–PEL/05B: 1–5.
Cunningham, C.L. and Butterworth, D.S. Further analyses regarding the exceptional circumstances provisions for OMP-08. Marine and Coastal Management document: MCM/2008/SWG–PEL/07: 1–19.
Cunningham, C.L. and Butterworth, D.S. Proposed final OMP-08. Marine and Coastal Management document: MCM/2008/SWG–PEL/09: 1–42.
Cunningham, C.L. and Butterworth, D.S. Further considerations for OMP-08. Marine and Coastal Management document: MCM/2008/SWG–PEL/09B: 1–19.
Cunningham, C.L. and Butterworth, D.S. Adjusted anchovy assessment with implications for OMP-08. Marine and Coastal Management document: MCM/2008/SWGPEL/10: 1–7.
de Moor, C.L. and Butterworth, D.S. Updated sardine assessment. Marine and Coastal Management document: MCM/2008/SWG–PEL/22 (also MARAM IWS/DEC08/S/1): 1–11.
de Moor, C.L. and Butterworth, D.S. OMP-08. Marine and Coastal Management document: MCM/2008/SWG–PEL/23 (also MARAM IWS/DEC08/S/2): 1–15.
de Moor, C.L. Adjustment to OMP-08 to Allow for Penguin Foraging at Low Pelagic Biomass. Marine and Coastal Management document: MCM/2008/SWG–PEL/29: 1–3.
de Moor, C.L. and Butterworth, D.S. Initial Sardine and Anchovy TACs and Sardine TAB for 2009, Using OMP-08. Marine and Coastal Management document: MCM/2008/SWGPEL/36: 1–3.
de Moor, C.L. Assessment of the South African sardine resource. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/S/3: 1–17.
  de Moor, C.L., Butterworth, D.S., Durholtz, D. and van der Lingen, C. Progress on recommendations from previous workshop: sardine and anchovy. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/S/4: 1–11.
de Moor, C.L., Coetzee, J.C. and Butterworth, D.S. The derivation of sardine length frequency distributions from November surveys. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/S/5: 1–8.
de Moor, C.L., and Durholtz, D. Reconsidering the proportions-at-age observed in the November survey. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/S/8: 1–5.
Edwards, C. and Butterworth, D.S. Towards standardisation of the longline CPUE series from the lobster fisheries around Inaccessible, Nightingale and Gough islands. Document MARAM/TRISTAN/08/Mar/01: 1–12.
Edwards, C. and Butterworth, D.S. Preliminary data for the stock assessments of lobster fisheries around Inaccessible, Gough and Nightingale islands. Document MARAM/TRISTAN/08/Mar/02: 1–10.
  Edwards, C. and Plagányi, É.E. Current status of MPA simulation modelling for the South African hake trawl fishery. Marine and Coastal Management document: MCM/2008/FEB/SWG-DEM/04: 1–2.
  Findlay, K. and Johnston, S.J. Detailed maps covering the breeding areas and migration routes of C1 and C3 humpback whales, along with some details pertaining to the photo-ID data. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/HB/6: 1–10.
Glazer, J.P. and Butterworth, D.S. Size composition of male and female South Coast rock lobsters per season and area. WG/04/08/SCRL9: 1–16.
Glazer, J.P. and Butterworth, D.S. A Generalized Linear Model applied to the South Cape rock lobster CPUE data to obtain area-specific indices of abundance. WG/04/08/SCRL10: 1–16.
Glazer, J.P. and Butterworth, D.S. Alternative calculation of catches per Area in the South Coast rock lobster fishery. Marine and Coastal Management document: WG/05/2008/SCRL16: 1–6.
Glazer, J.P. and Butterworth, D.S. Further squid statistics relevant to the data cleaning process. Marine and Coastal Management document: MCM/2008/JUL/SWG–SQ/03: 1–12.
Glazer, J.P., Butterworth, D.S. and Leslie, R.W. Further analyses of the GLM trends for M. paradoxus and M. capensis. MCM/2008/OCT/SWG-DEM/59: 1–10.
Johnston, S.J. and Butterworth, D.S. The Age-Structured Production Model for the South Coast rock lobster population extended to be sex- and area-specific, to fit to catch-at-length data, and to use Pope's approximation. Marine and Coastal Management document: WG/02/08/SCRL01: 1–11.
Johnston, S.J. and Butterworth, D.S. Preliminary results of the Sex- and Area-specific Age-Structured Production Model for the South Coast rock lobster population. Marine and Coastal Management document: WG/02/08/SCRL02: 1–10.
Johnston, S.J. and Butterworth, D.S. Further results for the Sex- and Area-specific Age-Structured Production Model for the South Coast rock lobster resource. Marine and Coastal Management document: WG/03/08/SCRL3: 1–24.
Johnston, S.J. and Butterworth, D.S. Preliminary specifications for the sex- and area-specific Operating Models for testing OMPs for the South Coast rock lobster resource. Marine and Coastal Management document: WG/04/08/SCRL12: 1–19.
Johnston, S.J. and Butterworth, D.S. Near final specifications for the sex- and area-specific Operating Models for testing OMPs for the South Coast rock lobster resource. Marine and Coastal Management document: WG/05/08/SCRL17: 1–28.
Johnston, S.J. and Butterworth, D.S. Initial OMP results for the South Coast rock lobster resource OMP. Marine and Coastal Management document: MCM/2008/JUN/SWG–SCRL/21: 1–11.
Johnston, S.J. and Butterworth, D.S. Further OMP results for the South Coast Rock Lobster resource OMP. Marine and Coastal Management document: MCM/2008/JUN/SWGSCRL/23: 1–10.
Johnston, S.J. and Butterworth, D.S. Addendum to: Further OMP results for the South Coast rock lobster resource OMP. Marine and Coastal Management document: MCM/2008/JUL/SWG–SCRL/24: 1–3.
Johnston, S.J. and Butterworth, D.S. Final set of OMP results for the South Coast rock lobster resource OMP. Marine and Coastal Management document: MCM/2008/JUL/SWGSCRL/26: 1–10.
Johnston, S.J. and Butterworth, D.S. Results for the final OMP 2008 selected for the South Coast rock lobster resource. Marine and Coastal Management document: MCM/2008/AUG/SWG–SCRL/28: 1–3.
Johnston, S.J. and Butterworth, D.S. Recommended TAC 2008 from the new OMP for the South Coast rock lobster resource. Marine and Coastal Management document: MCM/2008/AUG/SWG–SCRL/29: 1–5.
Johnston, S.J., Butterworth, D.S. and Glazer, J.P. OMP 2008 for South Coast rock lobster resource. Marine and Coastal Management document: MCM/2008/AUG/SWG–SCRL/30: 1–8.
Johnston, S.J. and Butterworth, D.S. OMP 2007 re-cast to be used for setting TACs for the West Coast rock lobster fishery for the 2008+ seasons. Marine and Coastal Management document: MCM/2008/JUN/SWG–WCRL/01: 1–20.
Johnston, S.J. and Butterworth, D.S. OMP 2007 re-cast results for West Coast rock lobster. Marine and Coastal Management document: MCM/2008/JUL/SWG–WCRL/06: 1–3.
Johnston, S.J., Butterworth, D.S. and Glazer, J.P. TAC 2008 for West Coast rock lobster using OMP 2007 re-cast. Marine and Coastal Management document: MCM/2008/AUG/SWG–WCRL/16: 1–13.
Johnston, S.J. and Butterworth, D.S. Corrected TAC recommendations for the 2008 season using OMP 2007 re-cast. Marine and Coastal Management document: MCM/2008/AUG/SWG–WCRL/16a: 1–2.
Johnston, S.J. Interim relief for the West Coast rock lobster fisheries. Marine and Coastal Management document: MCM/2008/DEC/SWG–WCRL/18: 1–1.
Johnston, S.J., Brandão, A., Edwards, C.T.T. and Butterworth, D.S. Standardised longline lobster CPUE from Inaccessible Island for the 1996–2005 period. Document MARAM/TRISTAN/08/May/01: 1–17.
Johnston, S.J. and Butterworth, D.S. Nominal longline CPUE from Gough and Nightingale lobster fisheries. Document MARAM/TRISTAN/08/May/02: 1–7.
Johnston, S.J. A summary of the Tristan biomass index survey results to date. Document MARAM/TRISTAN/08/Nov/01: 1–5.
Johnston, S.J. and Butterworth, D.S. Further possible movement hypotheses for C1–C3 humpback whales. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/HB/8: 1–5.
Miller, D.C.M., Shelton, P.A., Healey, B.P., Brodie, W.B., Morgan, M.J., Butterworth, D.S., Alpoim, R., González, D., González, F., Fernandez, C., Ianelli, J., Mahé, J., Mosqueira, I., Scott, R. and Vazquez, A. Management strategy evaluation for Greenland halibut (Reinhardtius hippoglossoides) in NAFO Subarea 2 and Divisions 3LKMNO. Northwest Atlantic Fisheries Organisation SCR Document 08/25: 1–50.
Plagányi, É.E. and Butterworth, D.S. Sensitivity of abalone assessment model to having no recent commercial data. Marine and Coastal Management document: Marine and Coastal Management abalone task group document June, 2008: 1–6.
Plagányi, É.E. and Butterworth, D.S. Retrospective and exploratory analyses using the abalone ASPM for Zones A–D. Marine and Coastal Management document: MCM/2008/NOV/SWG/AB/15: 1–20.
Plagányi, É.E. Abalone confiscation numbers and trends summary for Zones A–D in 2008. Marine and Coastal Management document: MCM/2008/NOV/SWG/AB/17: 1–8.
Plagányi, É.E. Abalone spatial and age-structured assessment model preliminary results for Zones A, B, C and D in 2008. Marine and Coastal Management document: MCM/2008/NOV/SWG/AB/18: 1–26.
Plagányi, É.E. Further results using the 2008 abalone assessment model for Zones A, B, C and D. Marine and Coastal Management document: MCM/2008/NOV/SWG/AB/20: 1–19.
Plagányi, É.E. Reference-case 2008 assessment model for abalone in Zones A, B, C and D. Marine and Coastal Management document: MCM/2008/NOV/SWG/AB/21: 1–36.
Plagányi, É.E. Preliminary analysis of catch-per-unit-effort data for abalone in Zones A–D. Marine and Coastal Management abalone task group document November, 2008: 1–5.
Plagányi, É.E. and Robinson, W. Update of available data for the African Penguin Spheniscus demersus model to be coupled to the pelagic OMP. Marine and Coastal Management document: MCM/2008/SWG–PEL/21a: 1–21.
Plagányi, É.E. and Robinson, W. Proposed performance statistics for evaluating the effects of pelagic fishing on African Penguin populations. Marine and Coastal Management document: MCM/2008/SWG–PEL/21c: 1–3.
Plagányi, É.E. and Robinson, W. Data inputs for the African Penguin Spheniscus demersus model to be coupled to the pelagic OMP. Marine and Coastal Management document: MCM/2008/DEC/SWG–PEL/26: 1–15.
  Plagányi, É.E. and Robinson, W. Progress on recommendations from previous workshop: penguin–pelagic fish interactions. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/P/1: 1–3.
Rademeyer, R.A. and Butterworth, D.S. Plans for assessment-related analyses for the South African hake resource in 2008. Marine and Coastal Management document: MCM/2008/FEB/SWG-DEM/05: 1–2.
Rademeyer, R.A. and Butterworth, D.S. Data required for planned assessment-related analyses for the South African hake resource in 2008. Marine and Coastal Management document: MCM/2008/FEB/SWG-DEM/13: 1–4.
Rademeyer, R.A. and Butterworth, D.S. Update on data required for planned assessment-related analyses for the South African hake resource in 2008. Marine and Coastal Management document: MCM/2008/JUL/SWG-DEM/35: 1–2.
Rademeyer, R.A. and Butterworth, D.S. 2008 routine update of the South African hake resource baseline assessment. Marine and Coastal Management document: MCM/2008/SEPT/SWG-DEM/48: 1–13.
Rademeyer, R.A. and Butterworth, D.S. Summary of ongoing analysis and further data queries for the South African hake. Marine and Coastal Management document: MCM/2008/SEPT/SWG-DEM/52: 1–3.
Rademeyer, R.A. and Butterworth, D.S. Implications of questions concerning the 2008 West Coast survey results for the 2009 TAC recommendation for hake. Marine and Coastal Management document: MCM/2008/NOV/SWG-DEM/71: 1–3.
Rademeyer, R.A. and Butterworth, D.S. Output from the South African hake OMP-2006 for the 2009 TAC recommendation. Marine and Coastal Management document: MCM/2008/NOV/SWG-DEM/73: 1–4.
Rademeyer, R.A. and Butterworth, D.S. Development of a new baseline assessment for the South African hake resource, incorporating catch-at-length information. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/H/5: 1–21.
Rademeyer, R.A. and Butterworth, D.S. Do alternative assumptions for the baseline hake assessment lead to substantial changes in results. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/H/6: 1–11.
Rademeyer, R.A. and Butterworth, D.S. An initial attempt at a sex-disaggregated assessment for the South African hake resource, fitting directly to age–length keys. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/H/9: 1–4.
Rademeyer, R.A. and Butterworth, D.S. An initial attempt at a spatially structured stock assessment for the South African hake resource. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/H/11: 1–12.
  Rademeyer, R.A. Further hake results. MARAM international workshop, University of Cape Town, December 8–12 2008: MARAM IWS/DEC08/H/WP 1: 1–10.
Rademeyer, R.A., Cunningham, C.L. and Butterworth, D.S. Revised anchovy TAC and sardine TAB for 2008, using OMP-08. Marine and Coastal Management document: MCM/2008/SWG–PEL/13: 1–2.
  Rademeyer, R.A. and Butterworth, D.S. Retrospective analysis for the Gulf of Maine cod ASPM reference case assessment. GARM-III working paper 2.2–b: 1–2.
Robinson, W. and Plagányi, É.E. Updated results from a Spatial Age-Structured Model of African Penguin populations for use in linking to the pelagic OMP testing process. Marine and Coastal Management document: MCM/2008/SWG–PEL/21b: 1–28.
Robinson, W., Plagányi, É.E. and Butterworth, D.S. Illustrative outputs of the age-structured model of African penguin populations for linking to the pelagic OMP testing process. Marine and Coastal Management document: MCM/2008/DEC/SWG–PEL/27: 1–10.
Robinson, W., Plagányi, É.E. and Butterworth, D.S. Summary of sensitivity analyses using the base-case penguin model. Marine and Coastal Management document: MCM/2008/DEC/SWG–PEL/28: 1–10.
Robinson, W. and Plagányi, É.E. Further analyses using the penguin model coupled to the pelagic OMP. Marine and Coastal Management document: MCM/2008/DEC/SWG–PEL/30: 1–10.
Robinson, W., de Moor, C.L. and Plagányi, É.E. Penguin/pelagic catch trade-off. Marine and Coastal Management document: MCM/2008/DEC/SWG–PEL/31: 1–2

Chapters in books

Butterworth, D.S. Some lessons from implementing management procedures. In: Fisheries for Global Welfare and Environment, 5th World Fisheries Congress 2008. Tsukamoto, K., Kawamura, T., Takeuchi, T., Beard, T.D. Jr. and Kaiser, M.J. (eds), pp. 381–397. TERRAPUB.
  De Oliveira, J.A.A., Kell, L.T., Punt, A.E., Roel, B.A. and Butterworth, D.S. Managing without best predictions: the Management Strategy Evaluation framework. In: Advances in Fisheries Science: 50 years on from Beverton and Holt. Payne, A.I.L., Cotter, J.R. and Potter, E.C.E., pp. 104–134. Blackwell Publishing, Oxford. xxi + 547 pp.
  Plagányi, É.E. and Butterworth, D.S. Competition with fisheries. Pages 269-275. In: Encyclopedia of Marine Mammals, 2nd edition. Perrin, W.F., Würsig, B. and Thewissen, H.G.M. (eds), Academic Press, ISBN-10: 012373553X; ISBN-13:978-0123735539.

Thesis (MSc)

Mkango, S. Multi-species models of Antarctic krill predation: do competitive effects influence estimates of pre-exploitation whale abundance and recovery? 1–112.

Executable Packages

OMP-08.