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Pulse vs. Optimal Stationary Fishing: The Northern Stock of Hake
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2011-11)
Pulse fishing may be a global optimal strategy in multicohort fisheries. In this article we compare the pulse fishing solutions obtained by using global numerical methods with the analytical stationary optimal solution. ...
Endogenous fisheries management in a stochastic model: Why do fishery agencies use TAC
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2010-12)
The aim of this paper is to explain under which circumstances using TACs as instrument to manage a fishery along with fishing periods may be interesting from a regulatory point of view. In order to do this, the deterministic ...
Lessons from the northern hake long-term management plan: Could the economic assessment have accepted it?
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2011-01)
An economic expert working group (STECF/SGBRE-07-05) was convened in 2007 for evaluating the potential economic consequences of a Long-Term Management Plan for the northern hake. Analyzing all the scenarios proposed by ...
Economic Effects of Global Warming under Stock Growth Uncertainty: The European Sardine Fishery
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2013)
Global warming of the oceans is expected to alter the environmental conditions that determine the growth of a fishery resource. Most climate change studies are based on models and scenarios that focus on economic growth, ...
Selectivity, pulse fishing and endogenous lifespan in Beverton-Holt models
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2012)
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 cycles. Optimal policy differs in two ...
Reference Points Based on Dynamic Optimisation: A Versatil Algorithm for Mixed Fishery Management with Bio-economic Agestructured Models
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2012)
Single-species management objectives may not be consistent within mixed fisheries. They may lead species to unsafe situations, promote discarding of over-quota and/or misreporting of catches. We provide an algorithm for ...
Reconciling yield stability with international fisheries agencies precautionary preferences: the role of non constant discount factors in age structured models
(2015)
International fisheries agencies recommend exploitation paths that satisfy two features. First, for precautionary reasons exploitation paths should avoid high fishing mortality in those fisheries where the biomass is ...