Characidium samurai Zanata & Camelier, 2014
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drawing shows typical species in Crenuchidae.
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drawing shows typical species in Crenuchidae.
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> Characiformes (Characins) > Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); samurai: Named for the Japanese warrior caste that provided the administrative and fighting aristocracy from the 11th to the 19th centuries. The samurais are known by their expertise in several kinds of martial arts. Currently, expertise in martial art is attested by the term'black belt', a condition inherent to that warrior caste. The name samurai was used herein in allusion to the conspicuous midlateral black band present in the new species. A noun in apposition.
Eponymy: This species is named to honour the Japanese warrior caste of the 11th-19th-centuries, specifically for their expertise in martial arts, attested today by the term ‘black belt’, referring to the conspicuous midlateral black band that this species sports. (Ref. 128868), visit book page.
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); samurai: Named for the Japanese warrior caste that provided the administrative and fighting aristocracy from the 11th to the 19th centuries. The samurais are known by their expertise in several kinds of martial arts. Currently, expertise in martial art is attested by the term'black belt', a condition inherent to that warrior caste. The name samurai was used herein in allusion to the conspicuous midlateral black band present in the new species. A noun in apposition.
Eponymy: This species is named to honour the Japanese warrior caste of the 11th-19th-centuries, specifically for their expertise in martial arts, attested today by the term ‘black belt’, referring to the conspicuous midlateral black band that this species sports. (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione Ecologia
; acqua dolce benthopelagico; distribuzione batimetrica 1 - 2 m (Ref. 96872). Tropical
Distribuzione Territories | Aree FAO | Ecosistemi | Presenze | Mappa dei ritrovamenti | Introduzioni | Faunafri
Sout America: Rio das Almas and rio Vermelho basins in eastern Brazil.
Dimensione / Peso / Età
Breve descrizione Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 11 - 12; Raggi anali molli: 9 - 10; Vertebre: 34 - 35. Characidium samurai is distinguished from all its congeners, except C. lanei Travassos, by having a dark lateral band along the head and body that is particularly broad (1.5 or 2 scales wide) from the rear of head to the end of the caudal peduncle and by the absence of dark bars or blotches on the ventral half of the body. It can be diagnosed from C. lanei by having the lateral band with straight borders overall (vs. lateral band with somewhat irregular borders due to blotches slightly extending dorsally or ventrally), anal fin ii,7-8 (vs. ii,6), 4 horizontal scale rows above the lateral line and 4 below (vs. 5/3), and lacking dark pigmentation around the insertion of the dorsal-fin rays (vs. presence). It further differs from congeners that occur in Brazilian rivers by having a complete lateral line, isthmus completely covered by scales, 14 scales around the caudal peduncle, and presence of adipose fin. It can be further distinguished from congeners by the absence of dark bars or spots on the fins, except for a faded dorsal-fin bar and anal-fin rays ii,7-8. It differs from congeners from northeastern Brazilian rivers by having the following characters: aperture of the pseudotympanum enclosed between ribs of the fifth and sixth vertebrae; presence of the parietal branch of the supraorbital canal; two series of teeth on the dentary; and 7-11 premaxillary teeth; 7-8 branched anal-fin rays; 34-37 lateral-line scales; one faded dark bar on the proximal half of the dorsal-fin rays; absence of a blotch on the caudal peduncle, or blotch merged to the longitudinal bar; and ii,7-8 anal-fin rays (Ref. 96872).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Found in clear water streams with water running over rocks, pebbles, sand and/or muddy bottoms, at altitudes ranging from 17 to 177 m a.s.l. in habitats characterized mainly by moderate water current. The type locality where most specimens were collected has a width of about 2 m, deep of 1-2 m, medium to fast water currrent, muddy substrate and grassy river borders (Ref. 96872).
Ciclo vitale e comportamento di accoppiamento Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Riferimento principale
Caricare le referenze | Bibliografia | Coordinatore | Collaboratori
Zanata, A.M. and P. Camelier, 2014. A new species of Characidium (Characiformes: Crenuchidae) from small coastal drainages in northeastern Brazil, with remarks on the pseudotympanum of some species of the genus. Neotrop. Ichthyol. 12(2):333-342. (Ref. 96872)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Least Concern (LC) ; Date assessed: 07 November 2018
CITES
Not Evaluated
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
FAO - Publication: search | FishSource |
Informazioni ulteriori
Ecologia trofica
Articoli alimentari (prede)
Alimentazione
Consumo di cibo
Razioni alimentari
Predatori
Articoli alimentari (prede)
Alimentazione
Consumo di cibo
Razioni alimentari
Predatori
Dinamica della popolazione
Parametri di crescita
Età massima / dimensioni massime
Rapporto lunghezza-peso.
Lunghezza-lunghezza rel.
Lunghezza-frequenze
Conversione di massa
Reclutamento
Abbondanza
Parametri di crescita
Età massima / dimensioni massime
Rapporto lunghezza-peso.
Lunghezza-lunghezza rel.
Lunghezza-frequenze
Conversione di massa
Reclutamento
Abbondanza
Ciclo di vita
Riproduzione
Maturità
Maturità/Gli occhielli sono relativi.
Fecondità
Deposizione
Aggregazioni riproduttive
Uova
Sviluppo delle uova
Larve
Dinamica popolazioni larvali
Riproduzione
Maturità
Maturità/Gli occhielli sono relativi.
Fecondità
Deposizione
Aggregazioni riproduttive
Uova
Sviluppo delle uova
Larve
Dinamica popolazioni larvali
Anatomia
Area branchiale
Cervello
Otolite
Area branchiale
Cervello
Otolite
Fisiologia
Composizione corporea
Nutrienti
Consumo di ossigeno
Tipo di nuoto
Velocità di nuoto
Pigmenti visivi
Suono del pesce
Malattie e parassiti
Tossicità (LC50)
Composizione corporea
Nutrienti
Consumo di ossigeno
Tipo di nuoto
Velocità di nuoto
Pigmenti visivi
Suono del pesce
Malattie e parassiti
Tossicità (LC50)
Genetica
Genome
Genetica
Eterozigosi
Ereditarietà
Diversità genetica
Genome
Genetica
Eterozigosi
Ereditarietà
Diversità genetica
Legato all'uomo
Sistemi di acquacoltura
Profili di acquacoltura
Varietà
Casi di Ciguatera
Francobolli, monete, materiale vario.
Sistemi di acquacoltura
Profili di acquacoltura
Varietà
Casi di Ciguatera
Francobolli, monete, materiale vario.
Strumenti
Libro elettronico | Giuda pratica | Generatore frequenze di lunghezza | Strumento Parametri Biologici | Mappa dei ritrovamenti |
Cattura-MSY |
Rapporti speciali
Controllo della manutenzione dell'acquario | Verificare la presenza di schede informative sulle specie | Verifica delle schede informative sull'acquacoltura
Scarica XML
Fonti Internet
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, ricerca | World Records Freshwater Fishing | Zoobank | Record zoologico
Stime basate su modelli
|
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
|
Livello trofico (Fonte Biblio. 69278) |
3.4 ±0.3 se; based on size and trophs of closest relatives |
|
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |