University of Cape Town
MARAM_Tristan_2021_JUN_07 (Updated 2021 I and N CPUE).pdf (693.83 kB)

Updated 2021 GLMM -standardised lobster CPUE from Inaccessible and Nightingale Islands

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posted on 2021-07-05, 09:19 authored by Susan HollowaySusan Holloway, Doug ButterworthDoug Butterworth
The longline CPUE series for Inaccessible island is GLMM standardised through to 2020. For Nightingale, the fishery was closed for the 2011 season and catches were set at precautionary levels for the 2011 and 2012 seasons. The Nightingale GLMM model thus excludes 2011 and 2012, although it now includes 2013-2020 for this island. Year, month, area, trap-type, soak time, depth and year-area interactions are treated as fixed effects, and year-month interactions treated as a random effect. The recent standardised CPUEs for Inaccessible and Nightingale continue to be high (well above the Itar level), and show an increase since the previous season.



Department of Mathematics and Applied Mathematics, University of Cape Town