Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period

The commercial CPUE series of a resource is often used as an index of population density and consequently population abundance when modelling the dynamics of the underlying population. It is known, however, that a number of other factors besides density may influence the recorded values of CPUE. Whe...

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Bibliographic Details
Main Authors: Johnston, Susan J, Brandão, Anabela, Edwards, C T T, Butterworth, Doug S
Format: Report
Language:English
Published: University of Cape Town 2008
Subjects:
Standardised longline lobster
CPUE
Inaccessible Island
Online Access:http://hdl.handle.net/11427/18565
https://open.uct.ac.za/bitstream/11427/18565/1/Johnston_Standardised_longline_2008.pdf
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spelling ftunivcapetownir:oai:localhost:11427/18565 2023-05-15T16:53:42+02:00 Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period Johnston, Susan J Brandão, Anabela Edwards, C T T Butterworth, Doug S 2008 application/pdf http://hdl.handle.net/11427/18565 https://open.uct.ac.za/bitstream/11427/18565/1/Johnston_Standardised_longline_2008.pdf eng eng University of Cape Town Faculty of Science Marine Resource Assessment and Management Group http://hdl.handle.net/11427/18565 https://open.uct.ac.za/bitstream/11427/18565/1/Johnston_Standardised_longline_2008.pdf Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ CC-BY Standardised longline lobster CPUE Working Paper 2008 ftunivcapetownir 2022-09-13T05:47:58Z The commercial CPUE series of a resource is often used as an index of population density and consequently population abundance when modelling the dynamics of the underlying population. It is known, however, that a number of other factors besides density may influence the recorded values of CPUE. Where sufficient data exist, General Linear Mixed Model (GLMM) standardisation is able to take some of these further effects into account, thereby producing a more reliable index of abundance. This document reports the application of a GLMM standardisation to Jasus tristiani lobster catch and effort data from around Inaccessible Island for the period 1996- 2005. Report Inaccessible Island University of Cape Town: OpenUCT Inaccessible Island ENVELOPE(166.350,166.350,-77.650,-77.650)
institution Open Polar
collection University of Cape Town: OpenUCT
op_collection_id ftunivcapetownir
language English
topic Standardised longline lobster
CPUE
spellingShingle Standardised longline lobster
CPUE
Johnston, Susan J
Brandão, Anabela
Edwards, C T T
Butterworth, Doug S
Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period
topic_facet Standardised longline lobster
CPUE
description The commercial CPUE series of a resource is often used as an index of population density and consequently population abundance when modelling the dynamics of the underlying population. It is known, however, that a number of other factors besides density may influence the recorded values of CPUE. Where sufficient data exist, General Linear Mixed Model (GLMM) standardisation is able to take some of these further effects into account, thereby producing a more reliable index of abundance. This document reports the application of a GLMM standardisation to Jasus tristiani lobster catch and effort data from around Inaccessible Island for the period 1996- 2005.
format Report
author Johnston, Susan J
Brandão, Anabela
Edwards, C T T
Butterworth, Doug S
author_facet Johnston, Susan J
Brandão, Anabela
Edwards, C T T
Butterworth, Doug S
author_sort Johnston, Susan J
title Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period
title_short Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period
title_full Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period
title_fullStr Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period
title_full_unstemmed Standardised longline lobster CPUE from Inaccessible Island for the 1996-2005 period
title_sort standardised longline lobster cpue from inaccessible island for the 1996-2005 period
publisher University of Cape Town
publishDate 2008
url http://hdl.handle.net/11427/18565
https://open.uct.ac.za/bitstream/11427/18565/1/Johnston_Standardised_longline_2008.pdf
long_lat ENVELOPE(166.350,166.350,-77.650,-77.650)
geographic Inaccessible Island
geographic_facet Inaccessible Island
genre Inaccessible Island
genre_facet Inaccessible Island
op_relation http://hdl.handle.net/11427/18565
https://open.uct.ac.za/bitstream/11427/18565/1/Johnston_Standardised_longline_2008.pdf
op_rights Creative Commons Attribution 4.0 International (CC BY 4.0)
http://creativecommons.org/licenses/by/4.0/
op_rightsnorm CC-BY
_version_ 1766044277414035456

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