Effect of toxicity on a harvested fishery model

The Impacts of Harvesting Activities on Prey-Predator Fishery Model in the Presence of Toxin

“…Both predator and prey species are subjected to different harvesting efforts and activities. Slight different from the work of Das et al [15] and Haque and Sarwardi [16], Kar and Chaudhuri [17], discussed the dynamical behaviors of two competitive fishery system. These models focused on the persistence, extinction, stability and optimal harvesting policy in the presence of toxicity.…”

“…Ghosh et al [14] developed a prey-predator fishery model to study the relationship between the pollutant concentrations and the equilibrium of fish population where the predator species are subjected to harvesting activities. The studies of Das et al [15] and Haque and Sarwardi [16] considered the prey-predator fishery models by assimilating the different toxicant exposure rates on predator and prey. Both predator and prey species are subjected to different harvesting efforts and activities.…”

Dynamical behavior of predator–prey model with non-smooth prey harvesting

“…Several forms of harvesting in predator-prey models have been widely studied. Researchers have added the harvest to the prey component [4,10,18] or to the predator [5,8,11,19] or to both species simultaneously [20][21][22]. The most common one of these harvesting forms is a nonzero constant or a linear harvesting rate.…”

The Impacts of Scavenging on the Prey-Predator-Scavenger Fishery Model in the Existence of Harvesting and Toxin

“…The research by Ang et al, [7], Ang et al, [8] and Huda et al, [9] assumed that during predation interplay, both prey and predator emit toxins to each other. Kar and Chaudhuri [10] and Haque and Sarwardi [11] analysed two competing fish species which are competing for the same food source. Both competing fish species release toxin substances to each other.…”

“…According to previous research, there is still a dearth of studies that consider the toxicant and harvesting aspects of the prey-predator-scavenger system. The previous studies that can be reviewed from the papers of several authors in [4,[6][7][8][9][10][11][14][15][16] have motivated us to analyse the impacts of scavenging by facultative scavengers on the dynamics of the prey-predator-scavenger fishery model in the presence of self-produced toxins by fish populations and harvesting. For the preservation and conservation of the fishery ecosystem, we think it will contribute to richer dynamics in the behaviours of the fishery model.…”