Complex assessments or simple management procedures for efficient fisheries management: a comparative study
| dc.contributor.author | Geromont, Helena F | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-03-14T12:16:42Z | |
| dc.date.available | 2016-03-14T12:16:42Z | |
| dc.date.issued | 2015 | |
| dc.date.updated | 2016-03-14T12:12:03Z | |
| dc.description.abstract | Complex stock assessment methods are data- and expertise-hungry, with the annual updates of catch-at-age data and models typically seen as an essential requirement for sound management. But are the heavy commitments of resources required for this level of annual intervention really necessary to achieve efficient long-term fishery management? This question is addressed through a retrospective analysis of management performance over the last 20 years for four North Atlantic fish stocks. The assessments for two of these stocks have exhibited fairly strong retrospective patterns. The actual assessment advice for these stocks was provided based on complex assessment methods making use of age data. The outcomes are compared with what could have been achieved with much simpler catch control rules based upon age-aggregated survey indices alone. Even for the stocks whose assessments exhibit retrospective patterns, these simple rules can achieve virtually equivalent catch and risk performance, with much less interannual TAC variability, compared with what actually occurred over the past 20 years. | en_ZA |
| dc.identifier | http://dx.doi.org/10.1093/icesjms/fsu017 | |
| dc.identifier.apacitation | Geromont, H. F., & Butterworth, D. S. (2015). Complex assessments or simple management procedures for efficient fisheries management: a comparative study. <i>ICES Journal of Marine Science</i>, http://hdl.handle.net/11427/17773 | en_ZA |
| dc.identifier.chicagocitation | Geromont, Helena F, and Doug S Butterworth "Complex assessments or simple management procedures for efficient fisheries management: a comparative study." <i>ICES Journal of Marine Science</i> (2015) http://hdl.handle.net/11427/17773 | en_ZA |
| dc.identifier.citation | Geromont, H. F., & Butterworth, D. S. (2015). Complex assessments or simple management procedures for efficient fisheries management: a comparative study. ICES Journal of Marine Science: Journal du Conseil, 72(1), 262-274. | en_ZA |
| dc.identifier.issn | 1054-3139 | en_ZA |
| dc.identifier.ris | TY - Journal Article AU - Geromont, Helena F AU - Butterworth, Doug S AB - Complex stock assessment methods are data- and expertise-hungry, with the annual updates of catch-at-age data and models typically seen as an essential requirement for sound management. But are the heavy commitments of resources required for this level of annual intervention really necessary to achieve efficient long-term fishery management? This question is addressed through a retrospective analysis of management performance over the last 20 years for four North Atlantic fish stocks. The assessments for two of these stocks have exhibited fairly strong retrospective patterns. The actual assessment advice for these stocks was provided based on complex assessment methods making use of age data. The outcomes are compared with what could have been achieved with much simpler catch control rules based upon age-aggregated survey indices alone. Even for the stocks whose assessments exhibit retrospective patterns, these simple rules can achieve virtually equivalent catch and risk performance, with much less interannual TAC variability, compared with what actually occurred over the past 20 years. DA - 2015 DB - OpenUCT DP - University of Cape Town J1 - ICES Journal of Marine Science LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 SM - 1054-3139 T1 - Complex assessments or simple management procedures for efficient fisheries management: a comparative study TI - Complex assessments or simple management procedures for efficient fisheries management: a comparative study UR - http://hdl.handle.net/11427/17773 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/17773 | |
| dc.identifier.uri | http://icesjms.oxfordjournals.org/content/early/2014/02/25/icesjms.fsu017 | |
| dc.identifier.vancouvercitation | Geromont HF, Butterworth DS. Complex assessments or simple management procedures for efficient fisheries management: a comparative study. ICES Journal of Marine Science. 2015; http://hdl.handle.net/11427/17773. | en_ZA |
| dc.language | eng | en_ZA |
| dc.publisher | Oxford University Press | en_ZA |
| dc.publisher.department | Marine Resource Assessment and Management Group | en_ZA |
| dc.publisher.faculty | Faculty of Science | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.source | ICES Journal of Marine Science | en_ZA |
| dc.source.uri | http://icesjms.oxfordjournals.org/ | |
| dc.subject.other | complex assessments | |
| dc.subject.other | empirical management procedures | |
| dc.subject.other | hindsight/forecast projections | |
| dc.subject.other | management performance | |
| dc.subject.other | retrospective comparison | |
| dc.title | Complex assessments or simple management procedures for efficient fisheries management: a comparative study | en_ZA |
| dc.type | Journal Article | en_ZA |
| uct.subject.keywords | complex assessments; empirical management procedures; hindsight/forecast projections; management performance; retrospective comparison | en_ZA |
| uct.type.filetype | Text | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Article | en_ZA |