National Scientific and Technical Research Council

About: National Scientific and Technical Research Council is a government organization based out in Buenos Aires, Argentina. It is known for research contribution in the topics: Population & Catalysis. The organization has 36143 authors who have published 62683 publications receiving 1013255 citations. The organization is also known as: CONICET.

Evaluating Potential Effects of Exotic Freshwater Fish From Incomplete Species Presence–absence Data

Abstract: Many freshwater ecosystems and biotas around the world are threatened with extinction Freshwater fishes, for example, are the most endangered vertebrates after amphibians Exotic fish are widely recognized as a major disturbance agent for native fish Evaluating the ecological effects of invaders presents many challenges and the problem is greatly augmented in parts of the world where the native fauna is poorly known and where exotic species are commonplace We use the fish community of Patagonia, a small and distinct native biota dominated by exotic salmonids, as a case study to ask: what can we learn about the effects of exotic fish species from fragmentary or partial data and how do such data point the way to what needs to be learned? We review the available data and literature on the distribution and status of native and introduced fish We compile a novel regional presence/absence species database, build fish distribution maps, describe distribution patterns of native and exotic species, and identify critical information voids A comparative review of literature from Patagonia and Australasia, where a similar native and exotic fish fauna is found, helps us to identify research priorities and promising management strategies for the conservation of native fish fauna We conclude that the main challenge for fish conservation in Patagonia is to identify management strategies that could preserve native species while maintaining the quality of salmonid fisheries