Updated (and rescaled) Tristan GLM-standardised lobster CPUE to take account of data for the 2017 season

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2018-05

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http://hdl.handle.net/11427/30632
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MARAM_Tristan_2018_MAY_05 (updatedTristan 2018 CPUE GLM results).pdf (463.39 KB)
Authors
Johnston, Susan
Butterworth, Doug S
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Department of Mathematics and Applied Mathematics
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Faculty of Science
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Abstract
The Powerboat CPUE series for Tristan was last updated in 2017 (MARAM/Tristan/2017/MAY/04) and took data for the 1994-20161 seasons into account. This GLM incorporated a method whereby the full GLM for Tristan can be rescaled to take into account the overall fishing efficiency changes as informed by the data on fishermen’s names (available for only 2005-2007 and 2013-2017 seasons). This document updates this GLM analysis by incorporating data from the most recent 2017 season. A slight continued improvement in the 2017 CPUE is evident.
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Johnston, S., Butterworth, D. 2018-05. Updated (and rescaled) Tristan GLM-standardised lobster CPUE to take account of data for the 2017 season.

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