Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Gymnotiformes (Knifefishes) > Apteronotidae (Ghost knifefishes)
Etymology: Sternarchorhynchus: Greek, sternon = sternon, + Greek, archos = anus + Greek, rhyngchos = snout (Ref. 45335); britskii: Named after Heraldo A. Britski, who first noted the presence of this species in the upper Parana system (Ref. 36352).

Environment / Climate / Range Ecology

Freshwater; benthopelagic. Tropical

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 26.1 cm TL male/unsexed; (Ref. 36886)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 166 - 178; Vertebrae: 80 - 90. Distinguished by its congeners by the following combination of features: length from the tip of the snout to the posterior end of the anal-fin base 92.4-94.4 %TL; mouth length 5.9-7.3 %HL; distance between anterior and posterior nares 2.6-3.1 %HL; eye diameter 3.1-4.1 %HL; postocular distance 40.0-44.4 %HL; pectoral fin length 35.5-41.3 %HL; scales always present above lateral line along anterodorsal region of body; unbranched anterior anal-fin rays 18-22; a white to yellowish white (sometimes indistinct) band on frontal portion of head and middorsum; and pectoral and anal fins hyaline to translucent, without dark distal margins; small ellipsoid caudal fin with 13-15 rays (Ref. 36352).

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

South America: Parana River basin.

Main reference Upload your references | References | Coordinator : Albert, James S. | Collaborators

de Santana, C. D. and R.P. Vari, 2010. Electric fishes of the genus Sternarchorhynchus (Teleostei, Ostariophysi, Gymnotiformes); phylogenetic and revisionary studies. Zool. J. Linn. Soc. 159:223-371.

IUCN Red List Status (Ref. 90363)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki |

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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00362 (-0.20820 - 0.21543), b=3.10890 (2.99229 - 3.22550), based on LWR estimates for this family-BS (Ref. 93245).

Trophic Level (Ref. 69278): 3.3 ±0.3 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): .

Vulnerability (Ref. 59153): Low vulnerability (14 of 100) .

Price category (Ref. 80766): Unknown.

Sternarchorhynchus britskii Campos-da-Paz, 2000