Title: Stock Dynamics and Risk Analysis of the Norwegian spring-spawning herring
Authors: Suzanne Touzeau, Marko Lindroos, Veijo Kaitala and Janica Ylikarjula
Status: Annals of Operations Research - Special Issue on Natural Resources, Vol. 94, Number 1-4, 2000, pp. 197-217.
We study in this paper the biological and economic risks involved in the management of the Norwegian spring-spawning herring fishery. Using a discrete time and age structured model we study the time behaviour of biomass, spawning stock, catch and profit. We then investigate, under different levels of fishing mortalities, the risk probabilities related to the time behaviour of stock, catch and profit. We show that the exploitation of the herring stock is vulnerable to small changes in harvesting.