On the Harvesting of Age Structured of Fish Populations

Autor(en): Behncke, H.
Al-Nassir, Sadiq
Stichwörter: Age class population model; DYNAMICS; GROWTH; Harvesting; MANAGEMENT; Marine fish; Mathematics; Stability
Erscheinungsdatum: 2017
Herausgeber: RGN PUBL
Journal: COMMUNICATIONS IN MATHEMATICS AND APPLICATIONS
Volumen: 8
Ausgabe: 2, SI
Startseite: 139
Seitenende: 156
Zusammenfassung: 
The yearly cycle of marine fish suggests to describe such populations by a discrete time dynamical Leslie model. The only nonlinear input into this model is the recruitment functions. Its influence on the stability of equilibria is investigated. We show that a monotone recruitment function leads to globally stable equilibria. Harvesting is introduced as fishing mortality so that the structure of the underlying model remains the same. The impact of the recruitment function is also discussed.
ISSN: 09765905

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