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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Bassozetus: Latin, bassus = thick, fat + Greek, ketos = marine mosnter, whale (Ref. 45335); werneri: Named for Werner Schwarzhans, Hamburg.
Eponymy: Dr Werner Wilhelm Schwarzhans is a retired German oil geologist. [...] (Ref. 128868), visit book page.
More on authors: Nielsen & Merrett.

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

Marine; bathydemersal; depth range ? - 1862 m (Ref. 84269). Deep-water

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

Western Central Pacific: south of New Caledonia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 37.5 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

This species is distinguished by the following characters: elongated and compressed body; rounded snout, slightly protruding over tips of jaws; fully scaled head, body scales larger than those on head with 20 in an oblique row; no basibranchial tooth patches; dentigerous vomer a minute, circular plate; sagittal otolith with distinct pointed process at the anterior end; 29 pectoral fin-rays; ventral fins almost reaching anus, 17.5% SL); 10 long gill rakers on anterior arch; chocolate brown coloration (Ref. 84269).

Known only from the holotype, a semi-ripe, female caught at continental slope depth. Stomach and intestine remains indicate that the species feeds on or close to the bottom (remains of crustaceans: 7 amphipods (10 - 40 mm in length) and 1 isopod ca. 10 mm in length (Ref. 84269). Reproductive strategy possibly similar to other members of this family featuring oviparity, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).

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

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G. and N.R. Merrett, 2000. Revision of the cosmopolitan deep-sea genus Bassozetus (Pisces: Ophidiidae) with two new species. Galathea Report 18:7-56. (Ref. 84269)

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

Data deficient (DD) ; Date assessed: 16 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

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

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.

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Taxonomy
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Synonyms
Morphology
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References
References

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.6 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 (36 of 100).

Bassozetus werneri Nielsen & Merrett, 2000