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Teleostei (teleosts) > Aulopiformes (Grinners) > Bathysauridae (Deepsea lizardfishes)
Etymology: Bathysaurus: Greek, bathys = deep + Greek, sauros = lizard (Ref. 45335).
More on author: Günther.

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

Marine; bathydemersal; depth range 1550 - 4903 m (Ref. 58302), usually 2000 - ? m (Ref. 4472). Deep-water; 50°N - 20°S, 180°W - 180°E

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

Circumglobal between latitude 50°N-20°S except tropical eastern Pacific. Eastern Atlantic: northern Ireland; Morocco to Gabon.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 78.0 cm SL male/unsexed; (Ref. 4472); common length : 40.0 cm SL male/unsexed; (Ref. 4472)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 16 - 17; Anal soft rays: 13; Vertebrae: 50 - 51. Moderately elongate and slender. Slightly depressed anteriorly and compressed posteriorly. Color generally white, with peritoneum, branchial and buccal regions dark. Small specimens have faint vertical bars (Ref. 37039).

Benthic (Ref. 58302). Found on the continental rise and the abyss, commonly below 2,000 m, in water colder than 4°C. Larvae are probably pelagic in near-surface midwaters. Solitary, lurking bottom feeder. Probably piscivore (Ref. 4964).

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

Contrary to Ref. 240 this species is an hermaphrodite (Ref. 7463).

Main reference Upload your references | References | Coordinator | Collaborators

Sulak, K.J., 1990. Synodontidae. p. 365-370. 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. 4472)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 14 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 1.7 - 4.1, mean 2.2 °C (based on 3164 cells).

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

Bayesian length-weight: a=0.00324 (0.00127 - 0.00824), b=3.16 (2.94 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.5 ±0.80 se; based on food items.

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

Fishing Vulnerability (Ref. 59153): High vulnerability (58 of 100).

Bathysaurus mollis Günther, 1878