How illegal capture of Glass Eel (Anguilla anguilla) affect biodiversity in Tagus river

Garcia, Jorge; Seixas, Sónia

http://hdl.handle.net/10400.2/3477

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Authors

Garcia, Jorge

Seixas, Sónia

Abstract(s)

The eel is a catadromous fish that grows in rivers and spawns in the sea. Every year, between November and the end of March, when glass eels migrate up river, illegal nets catch them in the Tagus River (downstream of the estuary, in Portugal). Every day, authorities organise policing actions to capture illegal nets placed in river specifically intended to capture glass eels. Usually, the seized nets are filled with glass eels and other species, since the net is very narrow (1-2 mm); it therefore captures everything. The mortality rate caused by these is huge and affects the eel’s preservation and the river’s biodiversity.

Keywords

Eel Glass eel Illegal nets Policing actions Biodiversity Tagus river

URI

http://hdl.handle.net/10400.2/3477

Citation

Garcia, Jorge; Seixas Sónia - How illegal capture of Glass Eel (Anguilla anguilla) affect biodiversity in tagus river. In HSci 2014. International Conference on Hands-on Science, 11, Aveiro, 2014 - "Hands-on Science [Em linha] : science education with and for society : proceedings". Editado por Manuel Filipe P. C. Martins Costa, Pedro Miguel Marques Pombo, José Benito Vasquez Dorrío. [S. l.] : Hands-on Science Network, 2014. ISBN 978-989-98032-5-1. p. 324-330