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Teleostei (teleosts) > Anguilliformes (Eels and morays) > Congridae (Conger and garden eels) > Congrinae
Etymology: nielseni: Named in honor of Jorgen Nielsen, famous specialist of deep-sea fishes.
Eponymy: Jørgen G Nielsen (d: 1932) is a Danish zoologist. [...] (Ref. 128868), visit book page.

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

Marine; bathydemersal; depth range 160 - 340 m (Ref. 41744). Deep-water

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

Southeast Pacific: central and southern part of the Nazca Ridge.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 46.5 cm TL male/unsexed; (Ref. 41744)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 272 - 324; Anal spines: 0; Anal soft rays: 198 - 217; Vertebrae: 151 - 153. Median fins with dark margins; dorsal fin origin above the upper base of the pectoral or slightly anterior; anal fin origin at a point 1.3-1.5 times HL from the gill aperture; lateral line system: supraorbital 3, infraorbital 5, preopercular-mandibular 9, occipital commissure 3 (Ref. 41744).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Karmovskaya, E.S., 1990. New species of conger eels from southeastern Pacific Seamounts. J. Ichthyol. 30(7):1-10. (Ref. 41744)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 11 September 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Diet composition
Food consumption
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Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance

Life cycle
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Maturity/Gills rel.
Fecundity
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Eggs
Egg development
Larvae
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Distribution
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Anatomy
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 9.8 - 13.2, mean 11.6 °C (based on 11 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00063 (0.00029 - 0.00138), b=3.18 (3.00 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (37 of 100).

Bassanago nielseni (Karmovskaya, 1990)