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Teleostei (teleosts) > 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 Ecology

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

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Napo River basin, Ecuador.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 36171)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 11; Anal spines: 0; Anal soft rays: 9 - 11; Vertebrae: 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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Bockmann, Flavio | Collaborators

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)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Egg(s)
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Distribution
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Anatomy
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Brains
Otoliths

Physiology
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Nutrients
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Swimming type
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Visual pigment(s)
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Genetics
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Stamps, coins, misc.

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Internet sources

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=0.00776 (0.00362 - 0.01664), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

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

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

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