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Halosauropsis macrochir  (Günther, 1878)

Abyssal halosaur
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| Native range | All suitable habitat | PointMap | Year 2100 |
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Halosauropsis macrochir   AquaMaps   Data sources: GBIF OBIS
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Image of Halosauropsis macrochir (Abyssal halosaur)
Halosauropsis macrochir
Picture by Orlov, A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Notacanthiformes (Halosaurs and deep-sea spiny eels) > Halosauridae (Halosaurs)
Etymology: Halosauropsis: Greek, als, alis = salt + Greek, sauros = lizard + Greek, opsis = appearance (Ref. 45335).

Environment / Climate / Range Ecology

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

Size / Weight / Age

Maturity: Lm ?  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).

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.

Biology     Glossary (e.g. epibenthic)

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).

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. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.36 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100) .
Price category (Ref. 80766):   Unknown.