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> Siluriformes (Catfishes) > Heptapteridae (Three-barbeled catfishes)
Etymology: Cetopsorhamdia: Greek, ketos = a marine monster, whale + Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).

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

; sötvatten bottenlevande; pH range: 7.5 - 7.5. Tropical; 0°S - 4°S, 78°W - 72°W

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South America: Napo River basin, Ecuador.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm SL hane/ej könsbestämd; (Ref. 36171)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 11; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 9 - 11; Ryggkotor: 37. Flexible, unbranched first ray and ten branched rays on its dorsal fin; dorsal fin situated relatively far posteriorly; pterygiophore of anterior dorsal fin ray articulating with neural spine of tenth vertebra; blade like neural spines of vertebrae five through nine extend dorsally, diverging at their dorsal ends to form a double row of ossifications just ventral to skin between supraoccipital and dorsal fin origin; a slender supraneural at posterior end of this v-shaped predorsal trough has attached muscles extending anteriorly between bifid neural spines to supraoccipital; maxillary barbel very long , reaching posteriorly beyond anal fin base. Distal portions of dorsal, adipose and anal fins, and most part of caudal fin almost unpigmented.

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

Main reference Upload your references | referenser | Koordinator : Bockmann, Flavio | Medarbetare

Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Data deficient (DD) ; Date assessed: 21 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00374 - 0.01688), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Cetopsorhamdia phantasia Stewart, 1985