Monitoring of fish stocks in the river Nivelle

On the Nivelle, in addition to the surveys carried out at the trapping stations, various fish population monitoring programmes are conducted throughout the river system. The data from these various monitoring programmes are available in the annual report.

IA SAT "Salmon" Abundance Indices

These indicators (number of juveniles caught per five minutes of fishing) (Prévost et al 1993) have generally been carried out in late September since 2005

See

IAT (VIGITRUITE®) Trout Abundance Indices

Since 2006, IAT have generally been carried out in late September using the "Vigitruite®" method (Roussel 2004)

See

Counting of spawning grounds

These spawning ground couting (for salmon and/or lamprey) have been carried out since 1984

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Last update: May 2021

Monitoring of fish stocks in the river Nivelle

IA SAT "Salmon" Abundance Indices

See also