Optimal harvesting for a kind of fisheries with interval biological parameters

The paper presents the study of optimal harvesting for carbon sinks fisheries of multi-trophic levels with interval biological parameters. To reduce the pressure on the environment, carbon sinks fisheries of multi-trophic levels takes advantage of the ecological characteristics of different trophic levels´ organisms and utilizes the nutrient repeatedly and circularly in breeding link. We identify the equilibrium points of the model and discuss their stabilities. The existence of bionomic equilibrium of the model is discussed.