Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Percophidae
(Duckbills) > Bembropinae
Etymology: Bembrops: Greek, bembras, -ados = a kind of anchovy m+ Greek, ops = appearance (Ref. 45335); heterurus: Specific name probably from the Greek 'heteros' meaning different and 'oura' meaning tail.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 50 - 400 m (Ref. 6948), usually 80 - 200 m (Ref. 47377). Deep-water; 12°N -
Western Atlantic: off Rio de Janeiro, Brazil to Uruguay. Eastern Atlantic: Mauritania to the extreme northern waters of Namibia (Ref. 27121). The eastern Atlantic form referred to as Bembrops heterurus is unlikely to be conspecific with the Brazilian form, thus further taxonomic clarification is needed.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm TL male/unsexed; (Ref. 6948); common length : 20.0 cm TL male/unsexed; (Ref. 2683)
soft rays: 16 - 18. Color in alcohol light yellowish to yellowish brown dorsally, light yellowish brown to creamy brown ventrally. Upper lobe of caudal fin elongated at an acute angle. Snout relatively short, 1.0-1.4x eye diameter. Scales on lateral and dorsal surfaces of snout including area in front of eye. Upper jaw extending behind anterior margin of eye but not reaching its mid-line. Maxillary tentacle short. Lateral line descending gradually along dorsal edge of pectoral fin, separated from origin of first dorsal fin by 4 or 5 rows of scales, from origin of anal fin by 6 or 7, and from insertion of anal fin by 3-5. Pectoral fin moderately rounded. Lower lobe truncate or rounded (Ref 13203).
Occurs on soft bottoms of the continental shelf and feeds on crustaceans and fishes (Ref. 3656).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Das, M.K. and J.S. Nelson, 1996. Revision of the percophid genus Bembrops (Actinopterygii: Perciformes). Bull. Mar. Sci. 59(1):9-44. (Ref. 13203)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 13.9 - 24.3, mean 16.8 (based on 91 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00242 - 0.00990), b=3.04 (2.86 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 4.0 ±0.2 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .