New research in fisheries economics addresses incentives across many margins. These
margins include within-season effects, incentives to harvest different ages and sizes of fish …

Optimal management in a multi-cohort Beverton-Holt model with any number of age classes
and imperfect selectivity is equivalent to finding the optimal fish lifespan by chosen fallow …

We consider an age-structured bioeconomic model of a fishery where periodic negative
shocks affect recruitment and somatic growth. The model is relevant for fish stocks that are …

Many biological and economic processes in fisheries occur seasonally though most of the
extant literature tends to neglect periodicity. This work is an attempt to treat seasonality in a …

Economists are interested in the relationship between fishing effort and stock size and their
impact on catch levels. The interest lies in stock elasticity, where it is thought that for pelagic …

Managing fisheries to achieve ecological, economic and social sustainability is complex.
The use of dynamic bioeconomic models can be and have been used to assist in …

International fisheries agencies recommend exploitation paths that satisfy two features. First,
for precautionary reasons exploitation paths should avoid high fishing mortality in those …

Environmental change in general, and climate change in particular, can lead to changes in
distribution of fish stocks. When such changes involve transboundary fish stocks, the …

Several world fish stocks are being explored at unsustainable levels and require
management plans to rebuild stock abundance. Defining a management plan is, however, a …

We present an age-structured multi-fleet model with cannibalism mortality and endogenous
weight at age. Using the model and three simplified versions, we show that assumptions of …