# A model for an aquatic ecosystem

## TL;DR

This paper presents a mathematical model of an aquatic ecosystem, analyzing its equilibria and conditions for coexistence of nutrients, plants, detritus, and oxygen, providing detailed feasibility analysis.

## Contribution

It introduces a new mathematical model for aquatic ecosystems and derives conditions for the existence and feasibility of coexistence equilibria.

## Key findings

- Established equilibria for the ecosystem components.
- Derived sufficient conditions for coexistence equilibrium.
- Discussed the feasibility of ecosystem states in detail.

## Abstract

An ecosystem made of nutrients, plants, detritus and dissolved oxygen is presented. Its equilibria are established. Sufficient conditions for the existence of the coexistence equilibrium are derived and its feasibility is discussed in every detail.