Browsing Brage IMR by Author "Tvete, Ingunn Fride"
Caveats with estimating natural mortality rates in stock assessment models using age aggregated catch data and abundance indices Aldrin, Magne Tommy; Aanes, Fredrik L; Tvete, Ingunn Fride; Aanes, Sondre; Subbey, Samuel (Peer reviewed; Journal article, 2021)We consider the challenge in estimating the natural mortality, M, in a standard statistical fish stock assessment model based on time series of catch- and abundance-at-age data. Though anecdotal evidence and empirical ...
Hirst, David; Tvete, Ingunn Fride; Storvik, Geir; Aanes, Sondre (ICES CM documents, Working paper, 2001)
Aldrin, Magne Tommy; Tvete, Ingunn Fride; Aanes, Sondre; Subbey, Samuel (Peer reviewed; Journal article, 2020)This paper considers a general state-space stock assessment modeling framework that integrates a population model for a fish stock and a data model. This way observed data are linked to unobserved quantities in the population ...