Classification / Names
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Perciformes/Percoidei (Perchs) >
Percidae (Perches) > Etheostomatinae
Etymology: Percina: Latin, diminutive of perch = perch (Ref. 45335); smithvanizi: The authors named this species for their friend and colleague, Dr. William F. Smith-Vaniz, in recognition of his outstanding contributions to ichthyology in general and specifically for his authorship of the first book on the Freshwater Fishes of Alabama .
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico; distribuzione batimetrica 0 - 1 m (Ref. 58738). Temperate; 34°N - 32°N, 87°W - 85°W
North America: restricted to streams draining the region above the Fall Line in the Tallapoosa River system. It is widely distributed above the Fall Line except it is absent in upper reaches of the Little Tallapoosa River in Georgia, USA.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.3 cm SL maschio/sesso non determinato; (Ref. 58738)
Short description
Morfologia | Morfometria
Percina smithvanizi is distinguished from all other described species of Percina by a combination of the following characteristics: absence of bright colors on body and fins of adults; no orange band in spinous dorsal fin; no broad vertical bands on body extending dorsally across the back joining those of the other side; 7–11 lateral blotches connected to form a continuous dark brown to black lateral stripe with undulating margins; lateral stripe continuous with large, somewhat quadrate basicaudal blotch, which extends onto base of caudal fin rays; a small dark blotch on upper and lower portion of caudal fin base, dorsal blotch typically darker; suborbital bar absent or very poorly developed; lateral line complete, typically no pored scales on base of caudal fin; males with row of modified scales on midline of belly and one or two modified scale between base of pelvic fins; modified breast scale absent; nuptial tubercles absent; anal fin of breeding males not excessively elongate; males without caudal keel as a ventral extension of the caudal peduncle; snout does not extend beyond anterior margin of upper jaw; broad premaxillary frenum present; serrae on margin of preopercle
absent; branchiostegal membranes very narrowly joined to overlapping (Ref. 58738).
Percina smithvanizi is a relatively common darter in undisturbed streams above the Fall Line in the Tallapoosa River. However, it has disappeared in disturbed streams and impoundments associated with mainstream dams on the Tallapoosa River. It has also disappeared from most of the headwaters of the Little Tallapoosa River in Georgia. The species was regarded as vulnerable by Freeman et al. (2005).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Williams, J.D., D.A. Neely, S.J. Walsh and N.M. Burkhead, 2007. Three new percid fishes (Percidae: Percina) from the Mobile Basin drainage ofAlabama, Georgia, and Tennessee. Zootaxa 1549:1-28. (Ref. 58738)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Informazioni ulteriori
Nomi ComuniSinonimiMetabolismoPredatoriEcotossicologiaRiproduzioneMaturitàDeposizioneSpawning aggregationFecundityUovaEgg development
Age/SizeAccrescimentoLength-weightLength-lengthLength-frequenciesMorfometriaMorfologiaLarveDinamica popolazioni larvaliReclutamentoAbbondanzaBRUVS
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneNutrientsMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00235 - 0.01227), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
