Japan country information

Common names: Kuroobi-tokagegisu
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Museum: Torishima, central Japan, BSKU 19675 (male, 2.25 GPL); Hyuga Basin off Cape Ashizuri, southern Japan, BSKU 43473, (female 2.27 GPL) (Ref. 37335).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Machida, Y., O. Okamura and S. Ohta, 1988
National Database:

Common names from other countries

Black halosaur, Longnaze rayé, Kiilassaurus, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Notacanthiformes (Halosaurs and deep-sea spiny eels) > Halosauridae (Halosaurs)
Etymology: Halosauropsis: Greek, als, alis = salt + Greek, sauros = lizard + Greek, opsis = appearance (Ref. 45335).
More on author: Günther.

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

Marine; bathydemersal; depth range 1100 - 3300 m (Ref. 4448). Deep-water; 50°N - 47°S

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

Eastern Atlantic: Ireland to Mauritania and South Africa. Western Atlantic: Canada to 25°N, and off southern Brazil. Western Pacific: Australia (Ref. 7300), New Zealand and Japan (Ref. 37335). Also known from Western Indian Ocean.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 4448)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 11-13. Body greyish-black to bluish black in color; top of head, gill isthmus and branchiostegal membranes black (Ref. 3974). Deeply pigmented sheath of lateral line. Absence of scales on the top of the head and presence of scales on the opercular bone (Ref. 37108).

Found on the lower slope, continental rise and upper abyss, primarily between 4° and 2°C isotherms. Feeds on polychaetes, crustaceans, echinoderms and echiurids. Hovers above or rests on bottom. Long slender pectorals are commonly held erect pointing upward and forward, these may serve a sensory function (Ref. 6727).

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

Main reference Upload your references | References | Coordinator | Collaborators

Sulak, K.J., 1990. Halosauridae. p. 126-132. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4448)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 12 June 2013

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 2.3 - 5, mean 3.3 (based on 1404 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00087 (0.00033 - 0.00229), b=3.07 (2.84 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.36 se; based on food items.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (41 of 100).

Halosauropsis macrochir (Günther, 1878)