Document Type: Short Communication
Analysis, Modeling and Simulation Laboratory, Hassan II University, Morocco
Mathematical Populations Dynamics Laboratory, Cadi Ayyad University, Marrakech, Morocco
UMI 209, Unit for Mathematical and Computer Modeling of Complex Systems - UMMISCO, IRD-UPMC, France
Faculty of Law, Economics and Social Sciences, Cadi Ayyad University, Marrakech, Morocco.
In  the authors have set up a bio-economic equilibrium model to understand the interactions between three fish populations and seek to maximize the profits of fishermen. The authors then studied the existence of stationary states and their stability using eigenvalue analysis. This is not correct in a dimension 3.In this paper, we correct the proof which appeared in page 190 in  by using Routh Hurwitz stability Criterion.