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

• Main Authors: Susan Holloway (9998819), Doug Butterworth (10005953)
• Format: Report
• Language: unknown
• Published: 2021
• Subjects: Biological Mathematics; Applied Statistics; Biostatistics; rock lobster; Jasus tristani; Inaccessible island; Nightingale Island; GLMM; CPUE standardisation; Inaccessible Island
• Online Access: https://doi.org/10.25375/uct.14892438.v1

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.