Eradication of introduced fish allows successful recovery of a stream-dwelling amphibian.

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ID: 107237
2019
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Abstract
Introduction of alien fish is a major problem for the conservation of amphibians inhabiting originally fishless mountain streams. While fish eradication programs in lakes and ponds have proven successful for the recovery of amphibian populations, there is no such information for stream-dwelling amphibians, possibly because fish removal from streams is difficult and costly. Here, we show the first case of successful recovery of a stream-dwelling amphibian (Rana iberica) in a mountain area of central Spain, following eradication of introduced brook trout (Salvelinus fontinalis) and native brown trout (Salmo trutta) translocated from downstream reaches by local anglers. Electrofishing for 12 consecutive years eradicated both fish species in the introduced area, and allowed the recovery of the R. iberica population as a result of natural recolonization from nearby streams and reintroduction of captive-reared individuals. Our results demonstrate how electrofishing can be a costly but effective method for the eradication of introduced fish and the conservation of stream-dwelling amphibians.
Reference Key
bosch2019eradicationplos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bosch, Jaime;Bielby, Jon;Martin-Beyer, Bárbara;Rincón, Pedro;Correa-Araneda, Francisco;Boyero, Luz;
Journal PloS one
Year 2019
DOI
10.1371/journal.pone.0216204
URL
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