Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10.
| dc.contributor.author | Ross-Gillespie, Andrea | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-04-20T11:14:41Z | |
| dc.date.available | 2016-04-20T11:14:41Z | |
| dc.date.issued | 2014 | |
| dc.date.updated | 2016-03-14T08:57:14Z | |
| dc.description.abstract | An update is given to the hake predation model presented in MARAM IWS/DEC13/Ecofish/P10. Several modifications have been made to the earlier model, following recommendations by the panel at IWS DEC13 and interim model development. The current model, while still troubled with some conflicts, shows promise as a reasonable base case model that takes predation and cannibalism into account. Results are given for three cases that give increasing weight to various diet data likelihood components. It was found that if the model fits well to the trend data and proportion of hake in diet, the fit to daily ration is poor. On the other hand, if the model fits well to the daily ration and proportion of hake in diet data, the consequential loss is a worse fit to the trend data. This document presents some of the diet data that are available, the methodology for the current model, and a selection of results for the three cases, as well as a list of suggested discussion points. | en_ZA |
| dc.identifier.apacitation | Ross-Gillespie, A., & Butterworth, D. S. (2014). <i>Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/19004 | en_ZA |
| dc.identifier.chicagocitation | Ross-Gillespie, Andrea, and Doug S Butterworth <i>Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2014. http://hdl.handle.net/11427/19004 | en_ZA |
| dc.identifier.citation | Ross-Gillespie, A., & Butterworth, D.S. (2014).Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10. University of Cape Town | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - Ross-Gillespie, Andrea AU - Butterworth, Doug S AB - An update is given to the hake predation model presented in MARAM IWS/DEC13/Ecofish/P10. Several modifications have been made to the earlier model, following recommendations by the panel at IWS DEC13 and interim model development. The current model, while still troubled with some conflicts, shows promise as a reasonable base case model that takes predation and cannibalism into account. Results are given for three cases that give increasing weight to various diet data likelihood components. It was found that if the model fits well to the trend data and proportion of hake in diet, the fit to daily ration is poor. On the other hand, if the model fits well to the daily ration and proportion of hake in diet data, the consequential loss is a worse fit to the trend data. This document presents some of the diet data that are available, the methodology for the current model, and a selection of results for the three cases, as well as a list of suggested discussion points. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10 TI - Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10 UR - http://hdl.handle.net/11427/19004 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/19004 | |
| dc.identifier.vancouvercitation | Ross-Gillespie A, Butterworth DS. Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10. 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/19004 | en_ZA |
| dc.language | eng | 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.rights | Creative Commons Attribution 4.0 International (CC BY 4.0) | * |
| dc.title | Modelling cannibalism and inter-species predation for Cape hake Merluccius capensis and M. paradoxus: an update to MARAM IWS/DEC13/Ecofish/P10. | |
| dc.type | Working Paper | en_ZA |
| uct.type.filetype | Text | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Research paper | en_ZA |