Research Article

The Study of a Predator-Prey Model with Fear Effect Based on State-Dependent Harvesting Strategy

Table 1

The description of the model parameters and variables and their units/dimensions.

SymbolDescriptionUnits/dimensions

Density of prey populationMass
Density of predator populationMass
Birth rate of prey population not affected by predators1/time
Natural death rate of prey population1/time
Decay rate due to intraspecies competition1/mass.1/time
Rate of predation1/mass.1/time
Handling time1/mass
Conversion rate of prey biomass to predator biomassDimensionless
Conversion time1/mass
Death rate of predator1/time
Level of fear1/mass
Harvesting level of prey populationMass
Harvesting effortDimensionless
Catchability coefficient of preyDimensionless
Catchability coefficient of predatorDimensionless
Quantity of predator pups releasedMass