Twenty-four hours in the life of Zingel asper.
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.
Cavalli
L
L
UMR IMEP 6116, Université Aix-Marseille I, 1 Pl V. Hugo, 13001, Marseille, France. laurent.cavalli@univ-provence.fr
Knight
C M
CM
Durbec
M
M
Chappaz
R
R
Gozlan
R E
RE
D025041:Animal Migration / Q000502:physiology; D000818:Animals; D002940:Circadian Rhythm / Q000502:physiology; D017753:Ecosystem; D005398:Fisheries / Q000379:methods; D010473:Perciformes / Q000502:physiology*; D045483:Rivers; D013686:Telemetry