Rescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changes

Simple item page
dc.contributor.authorJohnston, Susan
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2016-11-15T09:24:45Z
dc.date.available2016-11-15T09:24:45Z
dc.date.issued2016-03
dc.description.abstractThe Powerboat CPUE series for Tristan was last updated in 2015 (MARAM/Tristan/2015/MAY/06) and took data for the 1994-20141 seasons into account. A GLM with year and month as fixed effects was applied to these data as has been done in the past. Data on both the areas fished and the fishermen’s names are now available for recent seasons. A method is proposed whereby the full GLM for Tristan can be rescaled to take into account the overall fishing efficiency changes informed by these new data. The inclusion of the fishing efficiency changes results in a slightly less pessimistic CPUE trend over recent seasons.en_ZA
dc.identifier.apacitationJohnston, S., & Butterworth, D. (2016). <i>Rescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changes</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/22532en_ZA
dc.identifier.chicagocitationJohnston, Susan, and Doug Butterworth <i>Rescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changes.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2016. http://hdl.handle.net/11427/22532en_ZA
dc.identifier.citationJohnston, S.J. and Butterworth, D.S. 2016. Rescaled Tristan GLM-standardised lobster CPUE to take account of fishing efficiency changes. MARAM document: MARAM/TRISTAN/2016/MAR/05: 12pp.en_ZA
dc.identifier.ris TY - Working Paper AU - Johnston, Susan AU - Butterworth, Doug AB - The Powerboat CPUE series for Tristan was last updated in 2015 (MARAM/Tristan/2015/MAY/06) and took data for the 1994-20141 seasons into account. A GLM with year and month as fixed effects was applied to these data as has been done in the past. Data on both the areas fished and the fishermen’s names are now available for recent seasons. A method is proposed whereby the full GLM for Tristan can be rescaled to take into account the overall fishing efficiency changes informed by these new data. The inclusion of the fishing efficiency changes results in a slightly less pessimistic CPUE trend over recent seasons. DA - 2016-03 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 T1 - Rescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changes TI - Rescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changes UR - http://hdl.handle.net/11427/22532 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22532
dc.identifier.vancouvercitationJohnston S, Butterworth D. Rescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changes. 2016 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22532en_ZA
dc.languageengen_ZA
dc.publisher.departmentMarine Resource Assessment and Management Groupen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.titleRescaled Tristan GLM-Standardised Lobster CPUE to take account of fishing efficiency changesen_ZA
dc.typeWorking Paperen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceWorking paperen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Johnston_Tristan_2016_MAR_05.pdf
Size:
284.57 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.72 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Working Papers