Identity
Unique IDELEMENT_GLOBAL.2.1163238
Element CodeAFCND01020
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVertebrate Animal
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumCraniata
ClassActinopterygii
OrderAtheriniformes
FamilyAtherinopsidae
GenusLabidesthes
Other Common NamesCrayon d'argent (FR)
Concept ReferenceWerneke, D.C. and J.W. Armbruster. 2015. Silversides of the genus Labidesthes (Atheriniformes: Atherinopsidae). Zootaxa 4032(5): 535-550.
Taxonomic CommentsWerneke and Armbruster (2015) elevated Labidesthes sicculus vanhyningi to species status based morphometric, meristic, and osteological data from populations across the range. This followed work by Bloom et al. (2009), which found 14.7% uncorrected DNA sequence divergence and a well-supported sister relationship between L. s. sicculus and L. s. vanhyningi based on a phylogenetic analysis using mitochondrial ND2. The two species occur sympatrically in some locations.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2020-09-07
Change Date1996-09-20
Edition Date2020-09-07
Edition AuthorsHammerson, G. (2012), minor rev. M.Ormes (2020)
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences81 to >300
Rank ReasonsThis is a widespread species with many occurrences and no documentation of widespread threats or population declines.
Range Extent CommentsThis species is native to the southern portions of the St. Lawrence-Great Lakes basin and the Mississippi River basin from southern Quebec to eastern Minnesota and south to Louisiana; and in the Gulf of Mexico drainages from the Brazos River east to the Pascagoula River (Werneke and Armbruster 2015).
This species has been widely stocked as a forage fish within and outside the natural range.
Occurrences CommentsThis species is represented by a large number of occurrences (subpopulations).
Threat Impact CommentsSome populations have experienced declines due to invasions by Menidia species, especially in highly modified river systems such as the Tennessee–Tombigbee Waterway where dams and habitat modification have transformed previously lotic habitats, preferred by Labidesthes, to lentic habitats, preferred by Menidia (Herbert and Gelwick 2003, Taylor et al. 2008, Piteo et al. 2017).