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Twenty-four hours in the life of Zingel asper

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For the first time, radio-tracking observations were made over 24 h cycles during the growing season to quantify the habitat use and home range of Zingel asper, a critically endangered fish species, endemic to the Rhône River with a high risk of extinction (IUCN). New advances in radio telemetry with regard to the size of tags provided an opportunity to collect behavioural and habitat use information while remaining non-lethal. Zingel asper was characterized by small ranges of habitat use and, contrary to previous assumptions, the species was diurnal as illustrated by a smaller home range during the night than during daytime.

Keywords: Durance River; endangered species; home range; radio tracking

Document Type: Research Article


Affiliations: 1: Norwegian Institute of Water Research (NIVA), Gaustadalléen 21, NO-0349 Oslo, Norway 2: UMR IMEP 6116, Université Aix-Marseille I, 1 Pl V. Hugo, 13001, Marseille, France 3: School of Conservation Sciences, Bournemouth University, Talbot Campus, Fern Barrow, Poole, Dorset, BH12 5BB, U.K.

Publication date: August 1, 2009


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