Ecological Design of a Crayfishing Program to Control Population Density of the Invasive Species Procambarus Clarkii in Doñana National Park Freshwater Marsh (Spain)

A proposed crayfishing program offers a dual solution to the ecological impact of the invasive species Procambarus clarkii in Doñana National Park's freshwater marsh while addressing illegal harvesting. The study reveals that P. clarkii populations exhibit varying growth patterns and recruitment dynamics, with high juvenile density under stressful conditions leading to stunted growth. By implementing targeted fishing practices, the model aims to mitigate the crayfish's destructive feeding habits—responsible for reducing submerged aquatic macrophytes and altering water clarity—while providing a legal alternative for poachers. The research combines population analysis with fishery management principles to propose an effective, controlled harvesting strategy that balances ecological restoration with sustainable resource use.

(Ed.). (2015). ECOLOGICAL DESIGN OF A CRAYFISHING PROGRAM TO CONTROL POPULATION DENSITY OF THE INVASIVE SPECIES PROCAMBARUS CLARKII IN DOÑANA NATIONAL PARK FRESHWATER MARSH (SPAIN). Applied Ecology and Environmental Research, 13(2). https://doi.org/10.15666/aeer/1302_513533