Mathematical study of pollution negative effects of three scenarios: applicated to Sardina pilchardus, Engraulidae and Phocoena phocoena marine populations
by Fatima Ezzahra Bendahou; Imane Agmour; Youssef El Foutayeni
International Journal of Mathematical Modelling and Numerical Optimisation (IJMMNO), Vol. 13, No. 2, 2023

Abstract: During confinement, we noticed the appearance of different marine species, which is justified by the decrease in pollution rates, caused by fishing activities or recreational boats. This proves the importance of the mathematical analysis of biological models taking into account pollution effects. In the present work, we explored the effectiveness of such a study. We were interested by the analysis, modelling and simulation of a predatory prey biological model. To make the study close to reality, we considered the populations Sardina pilchardus, Engraulidae and Phocoena phocoena. We search to show the impact of pollution rate variation on the evolution of these species. We thus implemented three scenarios aiming to illustrate the impact: 1) considering model with predator population and a null pollution mortality rate; 2) assuming the existence of prey populations and a non-constant pollution mortality rate. As a main result, we found that in the second scenario, even if we add two prey populations as favourable food for the predator, its biomass decreases from a certain rank, because of the increase in the pollution rate and is contrary to the first scenario, which considerably elevated predator biomass despite the absence of prey.

Online publication date: Mon, 03-Apr-2023

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Mathematical Modelling and Numerical Optimisation (IJMMNO):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com