Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; brackvatten pelagic-neritic; djupintervall 1 - 2 m. Subtropical; 27°N - 21°N
Eastern Pacific: coast of Mexico from the Yaqui River south to about Tuxpan, Nayarit.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 10.0 cm SL hane/ej könsbestämd; (Ref. 189)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 28 - 34. Snout moderate, about 3/4 eye diameter; maxilla moderate, tip obliquely rounded, almost reaching to pre-operculum; gill cover canals of panamensis-type. Pectoral fins long, reaching to or just beyond pelvic fin base; anal fin very long, its origin under or just before or behind dorsal fin origin. A silver stripe along flank, about 3/4 eye diameter.
Body shape (shape guide): elongated; Cross section: oval.
Occurs in shallow coastal waters (lagoons or estuaries), but apparently not in the sea. Inhabits somewhat murky brackish to salt water over mud or firm sand with a veneer of mud. One of the top three dominant fishes in the Huizache-Caimanero lagoon system in Mexico.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Spawn in school (Ref. 205).
Whitehead, P.J.P. and R. Rodriguez-Sanchez, 1995. Engraulidae. Anchoas, anchovetas. p. 1067-1087. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9298)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: av potentiellt intresse
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00501 (0.00229 - 0.01099), b=3.15 (2.98 - 3.32), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.4 ±0.4 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (14 of 100). 🛈 |
Priskategori (Ref. 80766) |
Medium.
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