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Aaptosyax grypus Rainboth, 1991

Giant salmon carp
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Aaptosyax grypus
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > No subfamily
Etymology: Aaptosyax: Greek, aaptos =giant, terrible + Greek, ykis, yaina, yanis, syaina, syax and syakon = a kind of sole; but it is also related to yaina =hyena and wild pig ;  grypus: Named for its strongly curved jaws (Ref. 34719).

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

; agua dulce pelágico; potamodromo (Ref. 51243).   Tropical (Ref. 71989)

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

Asia: Mekong River.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 130 cm SL macho / no sexado; (Ref. 9497); peso máximo publicado: 30.0 kg (Ref. 9497)

Short description Morfología | Morfometría

Well-developed adipose eye-lid, covering most of eye except pupil in large adults, less extensive in juveniles; presence of a large symphyseal knob in lower jaw fitting in a median notch in upper jaw (Ref. 43281).

Biología     Glosario (por ej. epibenthic)

Inhabits mainstreams of middle reaches in deep rocky rapids. Juveniles occur in tributaries (Ref. 58784). A large fast-swimming predator, feeding on fish of the middle and the upper water levels. Although most common along the Thai-Lao border at the mouth of the Mun River, its numbers have drastically decreased in recent years. This is perhaps due to dam construction or excessive gill netting, to which active pursuit predators, like this species, are particularly vulnerable (Ref. 12693). Undertakes upstream migration at the same time as Probarbus sp. in December-February (Ref. 37770) which may be related to spawning activity (Ref. 9497). Attains over 30 kg (Ref. 9497).

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

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Roberts, T.R. and T.J. Warren, 1994. Observations of fishes and fisheries in southern Laos and northeastern Cambodia, October 1993-Febuary 1994. Nat. Hist. Bull. Siam. Soc. 42:87-115. (Ref. 10431)

IUCN Red List Status (Ref. 119314)

  Critically Endangered (CR) (A2acd); Date assessed: 17 January 2011

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO(Publication : search) | FishSource |

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Ocurrencias, apariciones
Introducciones
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Ecología
Dieta
componentes alimenticios
consumo de alimento
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Reproducción
Madurez
Puesta
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Fecundidad
Huevos
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Age/Size
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Length-weight
Length-length
Length-frequencies
Morfometría
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Larva
Dinámica larvaria
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heritabilidad
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Fuentes de Internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00451 - 0.02020), b=3.02 (2.84 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  4.5   ±0.80 se; Based on food items.
Resiliencia (Ref. 69278):  Muy bajo, población duplicada en un tiempo mínimo superior a 14 años (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Very high vulnerability (80 of 100) .