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

Holocephali (chimaeras) > Chimaeriformes (Chimaeras) > Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: hydro-, combining form of hydor (Gr.), water; lagos (Gr.), hare, i.e., “water rabbit,” probably referring to three pairs of tooth plates, which tend to protrude from the mouth like a rabbit’s incisors (See ETYFish); alberti: In honor of Norwegian-born American oceanographer Albert E. Parr (1901‒1991), editor of the authors’ “Fishes of the Western North Atlantic” monographs, for his many contributions to ichthyology (See ETYFish).
Eponymy: Dr Albert Eide Parr (1890–1991) was an oceanographer and marine biologist who was born and raised in Norway, where he took his first degree at the University of Oslo. [...] (Ref. 128868), visit book page.

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

Marine; bathydemersal; depth range 570 - 1470 m (Ref. 4443). Deep-water; 25°N - 21°N

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

Eastern Atlantic: Western Sahara and northern Mauritania. Western Atlantic: off Florida, USA (Ref. 4443) and off Suriname (Ref. 13608).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 54.0 cm SL male/unsexed; (Ref. 4443)

Short description Identification keys | Morphology | Morphometrics

Long caudal filament. Shorter dorsal spine, longer pectorals and a wavy lateral line. Dark brownish on head and body, fins much darker (Ref. 6902).

Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).

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

Oviparous (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Krefft, G., 1990. Chimaeridae. p. 111-113. 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. 4443)

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

Least Concern (LC) ; Date assessed: 02 September 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Venomous (Ref. 245)

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

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

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos

Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.

Outreach
Collaborators

Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures

References
References

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 5.2 - 10.4, mean 6.6 °C (based on 25 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00331 (0.00137 - 0.00798), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.6 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): Moderate to high vulnerability (46 of 100).

Hydrolagus alberti Bigelow & Schroeder, 1951