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Teleostei (teleosts) > Notacanthiformes (Halosaurs and deep-sea spiny eels) > Halosauridae (Halosaurs)
Etymology: Halosaurus: Greek, als, alis = salt + Greek, sauros = lizard (Ref. 45335).
Eponymy: James Yate Johnson (1820–1900) was a British naturalist who moved to Madeira (1851) and spent the rest of his life there. [...] (Ref. 128868), visit book page.
More on author: Vaillant.

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

Marine; bathydemersal; depth range 680 - 2200 m (Ref. 27000). Deep-water; 4°C - 11°C (Ref. 4448); 40°N - 20°N, 32°W - 5°W

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

Eastern Atlantic: southern Spain and Portugal to Mauritania including the Azores and Canary Islands.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 4448)

Found on the continental slope. Feeds on copepods (Ref. 4448). Minimum depth reported taken from Ref. 4448.

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: Version 2024-1)

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

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
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Predators

Ecology
Ecology

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

Life cycle
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Maturity/Gills rel.
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Eggs
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Anatomy
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 5.8 - 9.9, mean 7.9 °C (based on 32 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00085 (0.00033 - 0.00223), 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): 3.1 ±0.26 se; based on food items.

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

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (40 of 100).

Halosaurus johnsonianus Vaillant, 1888