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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: Cataetyx: Greek, kata = down + Greek, etix, stixo, stizo = to prick, to puncture.
More on author: Günther.

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

Marine; bathydemersal; depth range 140 - 1649 m (Ref. 75877). Deep-water; 42°S - 57°S

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

Southeast Pacific and Southwest Atlantic: Patagonian region of Chile and Argentina. Records from South Africa and New Zealand are erroneous (Ref. 34024).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 27.6 cm SL male/unsexed; (Ref. 27363)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 100; Anal spines: 0; Anal soft rays: 70. Body uniformly dark brown with ventral parts of head and trunk pale. Pelvic fins pale brown, remaining fins dark brown (Ref. 27363).

Uncommon species (Ref. 34024).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 09 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Ecology
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Visual pigment(s)
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 2.9 - 6.1, mean 4.3 °C (based on 70 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00457 (0.00179 - 0.01169), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec < 100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (24 of 100).

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