In this paper. we proposed a mathematical model of the population density of Indo-Pacific mackerel (Rastrelliger brachysoma) and the population density of small fishes based on the impulsive fishery. The model also considers the effects of the toxic environment that is the major problem in the water. The developed impulsive mathematical model was analyzed theoretically in terms of exi... https://fitnessgravesyardes.shop/product-category/upper-console-cover/