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Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Auchenipteridae (Driftwood catfishes) > Auchenipterinae
Etymology: Pseudauchenipterus: Greek, pseudes = false + Greek, auchen = neck + Greek, pteron = wing, fin (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; brackish; demersal; pH range: 6.5 - 8.0; dH range: ? - 30. Tropical; 20°C - 25°C (Ref. 2060)

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 22.0 cm SL male/unsexed; (Ref. 37098); common length : 25.0 cm TL male/unsexed; (Ref. 3270)

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal spines: 0; Anal soft rays: 20 - 25. Body is thick compared to that of Auchenipterus. Snout is very rounded, with a recessed lower jaw. The moderately large eyes are lateral in position. The zigzag lateral line is complete. The branchiospines are short and numerous. The caudal fin has 17 spines (Ref. 35381).

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

South America: Lower reaches of rivers and into estuaries from Venezuela to Brazil, at least to Bahia, including southern Trinidad.

Found over muddy bottoms in brackish river mouths. Probably prefers large rivers and slightly brackish waters (Ref. 11225, 27188). Occurs in very thick schools over muddy bottoms. Omnivorous, with a tendency towards detritivorous feeding. Searches for food in the zones of the village waste waters. During reproduction, towards the month of December, the ventral fins and the mandible turn pink. At this time, the weight of the male and female's mature gonads account for 10% and 25%, respectively, of the body weight (Ref. 35381). Marketed fresh.

Main reference Upload your references | References | Coordinator : Ferraris, Jr., Carl J. | Collaborators

Ferraris, C.J. Jr., 2003. Auchenipteridae (Driftwood catfishes). p. 470-482. 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.

IUCN Red List Status (Ref. 90363)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial; bait: usually

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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01265 (-0.19674 - 0.22204), b=2.94 (2.82 - 3.05), based on LWR estimates for this family-BS (Ref. 93245).

Trophic Level (Ref. 69278): 2.0 ±0.00 se; Based on food items.

Resilience (Ref. 69278): .

Vulnerability (Ref. 59153): Low vulnerability (17 of 100) .

Price category (Ref. 80766): Unknown.

Pseudauchenipterus nodosus (Bloch, 1794)