Acestrocephalus acutus

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Acestrocephalus acutus Menezes 2006

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Acestrocephalus acutus
Female picture by Menezes, N.A.

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Characidae (Characins) > Characinae
Etymology: Acestrocephalus: Greek, agkistron = hook + Greek, kepahle = head (Ref. 45335);  acutus: From the Latin adjective acutus, meaning sharp, in reference to the pointed nature of the snout of this species.

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

; stvatten bentopelagisk.   Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

South America: Rio Tocantins and rio Tapajós drainages in Brazil.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 10.4 cm SL hane/ej könsbestämd; (Ref. 75890)

Short description Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt): 11; Mjukstrålar i analfenan: 33 - 39; Ryggkotor: 37 - 39. Among the species of Acestrocephalus with dark humeral blotch absent, this species can be separated from Acestrocephalus sardina and Acestrocephalus nigrifasciatus by possessing a smaller eye (28.0- 31.7 vs. 32.6-36.5 in Acestrocephalus nigrifasciatus and 31.3-37.4 in Acestrocephalus sardina); and an oblong dark blotch at caudal base instead of the triangular dark blotch present on the caudal base of those two species. Distinguished from Acestrocephalus pallidus by having an oblong dark blotch at caudal base (vs. absence of dark blotch); and differs further from Acestrocephalus pallidus by the shape of the muscular hiatus of the pseudotympanum and the muscular arrangement around it. Can be diagnosed from Acestrocephalus anomalus by having more teeth in the posterior row on dentary (28-36 vs. 23-28) and fewer teeth in the external tooth row on premaxilla (6-8 vs. 8-11) (Ref. 75890).

Biologi     Ordlista (t.ex. epibenthic)

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Menezes, N.A., 2006. Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae). Neotrop. Ichthyol. 4(4):385-400. (Ref. 75890)

IUCN Red List Status (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO(Publication : search) | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
BRUVS
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Allelfrekvenser
Ärftlighet
Sjukdomar
Behandling
Mass conversion
Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

Verktyg

Special reports

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Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishipedia | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia(Go, sök) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00417 - 0.02400), b=3.08 (2.87 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.7   ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .