The aim of the study was to see how the carp and Louisiana red swamp crayfish interacted between one another in Lake Naivasha, a large scale natural experiment which would help ecologists understand and predict changes in ecosystems with successive invaders.ĭr Grey said: "The movement of organisms around the globe is an important aspect of human-mediated environmental change. ![]() "Although the carp have been fantastic for the local community's commercial fishing industry, it's been to the detriment of the crayfish." Lead author Dr Jonathan Grey from Queen Mary's School of Biological and Chemical Sciences said: "We first noticed the carp in our nets in 2003 by 2006 it was the dominant fish species in the Lake and at the end of our research in 2008, carp completely dominated the system. ![]() The crayfish were introduced to the Lake in the 1970s and have adopted a central role in the food web for more than 30 years, yet the carp, introduced a little more than a decade ago, appear to have driven the crayfish away. The study, published in the journal PLoS ONE, investigated the interaction between the crayfish and carp in Kenya's Lake Naivasha between 20.
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