Classificação / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Curculionichthys: Derived from the from the Latin 'curculionem' (elongated snout) and from the Greek 'ichthys' (fishes), in reference to the relatively elongated snouts of the fish species included in this genus.; scaius: Name from Greek 'skaios', meaning west, westward, referring to the westerly distribution in the Brazilian Shield; an adjective..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal; intervalo de profundidade 0 - 1 m (Ref. 119375). Tropical
South America: Brazil.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 2.4 cm SL macho/indeterminado; (Ref. 119375)
Descrição suscinta
Morfologia | Morfometria
Espinhos dorsais (total): 2; Raios dorsais (total): 7; Espinhos anais 1; Raios anais : 5. This species is distinguished from its congeners by the following set of characters: having two usually distinct, somewhat triangular dark brown speckles lateral to the anal-fin origin (vs. speckles lateral to anal-fin origin absent or, when pigmentation present, weak and sparsely distributed forming inconspicuous blotches); differs from C. karipuna, Hisonotus acuen, H. chromodontus by having paired rostral plates (vs. rostral plate single); differs from C. oliveirai, C. piracanjuba, H. acuen, H. bockmanni, H. chromodontus by having more numerous lateral abdominal plates 7-8 (vs. 3-5 lateral abdominal plates); differs from C. coxipone, C. luteofrenatus, C. piracanjuba, C. sabaji, C. sagarana by having a single series of large median abdominal plates (vs. usually 3 or more regular series of median abdominal plates, or small plates irregularly distributed); differs from C. coxipone, C. sagarana by having anterior margin of snout pointed (vs. rounded); differs further from its congeners by having more dentary teeth 17-22 (vs. 5-1 in insperatus, 5-12,sabaji, 7-16 coxipone, 10-15 oliveirai, 11-18 itaim, 10-16 tukana, 4-7 paresi) and by having more pemaxillary teeth 19-25 (vs. 6-14 in insperatus, 7-13 sabaji, 7-15 coxipone, 9-18 oliveirai, 11-18 itaim, 12-18 tukana); also differs further in several morphometric proportions of the body and head, mostly involving prepelvic, prepectoral, and preanal distances, head and cleithral width, caudal peduncle length, and dorsal-fin spine (Ref. 119375).
This species was collected in a third order creek with clear water, bottom formed mainly by sand and leaf litter, wirh an average width of 2.5 m and depth of 0.3 m; collected when water temperature was 23.6 Celsius and dissolved oxygen 1.88 PPM. The creek edges were covered by gallery forest, but portions have been deforested and pastures are now reaching to the river margin (Ref. 119375).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Calegari, B.B., S.P. Gamarra and R.E. Reis, 2018. A new species of Curculionichthys (Siluriformes: Hypoptopomatinae) from the Western Border of the Brazilian Shield, Madeira River Basin, Brazil. Copeia 106(4):663-670. (Ref. 119375)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
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Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 2.7 ±0.1 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
