Liste rouge des poissons et des macro-crustacés d'eau douce des Pays de la Loire (2013)

	Ordre statut	CD_NOM	CD_REF	Name(s) quoted	Author	Common name	Rank	Family	Endemism	Relative population	Comment	Category Regional	Criteria Regional	Trend	Year of publication	Category Red List global	Category Red List European	List of source	Year of evaluation	Species sheet

The categories of the UICN Red List
Extinct species
EX	Extinct species globally
EW	Extinct species in the wild
RE	Extinct species of the area concerned
Threatened and endangered species in metropolitan territories
CR	Critically endangered (CR* Probably extinct species)
EN	Endangered
VU	Vulnerable
Other categories
NT	Near threatened (species close to the threatened thresholds or that species could be threatened if specific conservation measures were not taken)
LC	Least concern (species for which the risk of extinction is in metropolitan territories)
DD	Data deficient (species for which the assessment could not be performed due to insufficient data)
NA	Not applicable (species not subject to review because (a) introduced in the recent period or (b) in metropolitan territories occasionally)
Former categories
LR	Low risk of extinction
LR/nt	Low risk of extinction/Near Threatened
LR/cd	Low risk of extinction/Conservation dependent
LR/lc	Low risk of extinction/Least concern
E	Endangered species
V	Vulnerable species
R	Rare species
I	Species indeterminate
Ex	Extinct species
Ex?	Species may be extinct