Some modifications to the current ADAPT-VPA model for Antarctic minke whales

• Main Authors: Mori, Mitsunyo, Butterworth, Doug S
• Format: Report
• Language: English
• Published: University of Cape Town 2008
• Subjects: Adapt-VPA; Catch-at-age; Natural mortality; Antarctic minke whale; Antarctic; Antarc*; Antarctic Minke whale; minke whale
• Online Access: http://hdl.handle.net/11427/18152; https://open.uct.ac.za/bitstream/11427/18152/1/Mori_Some_modifications_to_2008.pdf

The current ADAPT-VPA model of Mori et al. (2007) for Antarctic minke whales in Areas IIIE to VW is modified in two respects. One is the revision of the stock-recruitment relationship, and the other is the simplification of the functional form of the carrying capacity. AIC indicates that the model which includes the above two modifications is better compared to the “Reference case” scenario of Mori et al. (2007). Thus, future analyses will regard this modified version as a new “Reference case” scenario, which has the incidental advantage of corresponding more closely to the assumptions made in the SCAA (Statistical Catch at Age) approach of Punt and Polacheck (2006) to analysis of these data.