Open Access Open Access  Restricted Access Subscription or Fee Access

Effects of Awareness Programs to Save Dolphins: A Mathematical Model

Sapna Devi

Abstract



This paper describes the dynamics of dolphin population in the presence of pollutants and harvesting both. Effects of awareness programs are studied on the proposed model. It is assumed that number of awareness programs increases with increase in concentration of pollutants and harvesting activity. For the analysis of the model, theory of differential equations is used and analytical results are accomplished by the numerical simulations. A condition under which the system persists uniformly is obtained. It is observed that, in the presence of awareness programs density of dolphin population can be maintained at desired level. It is also pointed out that awareness programs play a very crucial role in maintaining the equilibrium level of dolphin population when impacts of pollutants and harvesting activity on dolphin population increase.

Keywords


Dolphin population; toxicants; harvesting; awareness; stability, persistence, simulation

Full Text:

PDF


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.