Socio-economic drivers and non-indigenous freshwater crayfish species in Europe
2011
Perdikaris, C., Technological Educational Institute of Epirus, Igoumenitsa (Greece). Department of Aquaculture and Fisheries | Kozák, P., University of South Bohemia in České Budějovice (Czech Republic). Faculty of Fisheries and Protection of Waters | Kouba, A., University of South Bohemia in České Budějovice (Czech Republic). Faculty of Fisheries and Protection of Waters | Konstantinidis, E., Department of Fisheries, Region of Epirus, Igoumenitsa (Greece) | Paschos, I., Technological Educational Institute of Epirus, Igoumenitsa (Greece). Department of Aquaculture and Fisheries
The present work aims to examine possible relations and trends between demographic factors (human population density), economic factors (urbanization level, GDP per capita), ecological status (biocapacity/footprint) and the number of established nonindigenous crayfish species (NICS) in the EU area. In conclusions: Managing the spread of NICS is not an easy task given the human-assisted introductions (Peay, 2009). It is obvious thus, that profit generation and accordingly strong lobby interests in aquarium trade is a major obstacle against the introduction and enforcement of legal instruments. Indirect metabolic (ecological) rifts are continuously created by the spread of NICS through direct impacts on ICS and other aquatic biota and structural modification of habitats (Nyström et al., 1996). EU legislative frameworks, recent actions to adopt strategies against alien species and the development of risk screening tools of NICS are expected to assist in some extent to the protection of ICS. Moreover, there is a need to address the fundamental causes of NICS spread in the EU territory in a more holistic way taking in account impacts generated by the social, demographic and the economic environment.
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