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Pristigaster cayana Cuvier, 1829

Amazon hatchet herring
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Image of Pristigaster cayana (Amazon hatchet herring)
Pristigaster cayana
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > Clupeiformes (Herrings) > Pristigasteridae (Pristigasterids)
Etymology: Pristigaster: Greek, pristis = saw + Greek, gaster = stomach (Ref. 45335).  More on author: Cuvier.

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce; salobre pelágico.   Tropical; 1°N - 2°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: Amazon drainage (from perhaps mouth of Rio Branco at Goiaçu, Rio Solimões, Rio Juruá and as far as the Río Ucayali in Peru). (There are possibly two species, judging from specimens in the Museu de Zoológia, Sao Paulo).

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.5 cm SL macho / no sexado; (Ref. 50591); common length : 8.5 cm SL macho / no sexado; (Ref. 188)

Short description Morfología | Morfometría

Espinas dorsales (total): 0; Espinas anales 0; Radios blandos anales: 45 - 54. Belly profile strongly convex (almost circular from throat to anus), 30 to 33 scutes. Lower jaw projecting, mouth directed almost vertically upward; no toothed hypo-maxillary bone between hind end of pre-maxilla and lower bulge of maxilla blade; eye large. Pectoral fins high on body; anal fin origin behind dorsal fin base; upper caudal fin lobe ending in a filament in larger fishes (Ref. 188).

Biología     Glosario (por ej. epibenthic)

Occurs in rivers but perhaps entering slightly saline waters near the mouth of Amazon (but this part of its range is not well documented). Compared with the `flying' characoid fishes (e.g. Thoracocharax), the vertically aligned scute arms in Pristigaster and the rather small pectoral muscles show that flight by vibration of the pectoral fins is almost certainly impossible. This species having been caught along with Thoracocharax raises the question of mimicry.

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

IUCN Red List Status (Ref. 119314)

  Least Concern (LC) ; Date assessed: 06 March 2017

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: sin interés
FAO(Publication : search) | FishSource |

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Ecosistemas
Ocurrencias, apariciones
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Ecología
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componentes alimenticios
consumo de alimento
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Madurez
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Fecundidad
Huevos
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Length-weight
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heritabilidad
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Special reports

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Fuentes de Internet

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Árbol de la vida | Wikipedia(Go, búsqueda) | World Records Freshwater Fishing | Expediente Zoológico

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  3.4   ±0.5 se; Based on size and trophs of closest relatives
Resiliencia (Ref. 69278):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (16 of 100) .