Monitoring fish stocks in Oir River

"Salmon" abundance indices (IA SAT)

These indices (number of juveniles captured per 5 minutes of fishing) (Prévost et al., 1993), compiled by SEINORMIGR are usually recorded in late September since 1993

See : Juvenils salmon

Trout abundance indices (IAT VIGITRUITE®) 

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

See : Juvenils trout

Juvenils lampreys

Abondances' lamprey indicators (Lasne 2010) have been compiled in the autumn since 2009

See : Juvenils lampreys

Eel stock indices (IAA)

Since 2008, IAA tests have generally been carried out in late September

See : Eel stock

Fish stock (all species)

These surveys, covering all species except lampreys, have generally been carried out in late September since 2008.

See : Fish Stock