Hydrolagus affinis, Smalleyed rabbitfish

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Hydrolagus affinis (de Brito Capello, 1868)

Smalleyed rabbitfish
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Hydrolagus affinis   AquaMaps   Data sources: GBIF OBIS
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Image of Hydrolagus affinis (Smalleyed rabbitfish)
Hydrolagus affinis
Picture by Mouritsen, R.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Holocéphales (chimères) (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);  affinis: Latin for related, referring to its similarity to Chimaera monstrosa. (See ETYFish).

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

marin bathydémersal; profondeur 300 - 3000 m (Ref. 117245). Deep-water; 70°N - 58°S, 80°W - 41°E

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Northeast Atlantic: Rockall Trough along Ireland, northern Bay of Biscay and off Portugal. Reported from Iceland (Ref. 12462). Southwest Atlantic: Uruguay (Ref. 58839). Northwest Atlantic: Newfoundland in Canada to Cape Cod in USA. Probably has a much wider distribution. Possibly occurring off the Cape in South Africa and off Mozambique (Ref. 11228).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 130 cm TL mâle / non sexé; (Ref. 4443); 125.0 cm TL (female)

Description synthétique Morphologie | Morphométrie

Lacks a separate anal fin. Pectoral fin does not overlap pelvic fin. Short caudal filament. Dark brown in color (Ref. 6902).

Biologie     Glossaire (ex. epibenthic)

Epibenthic (Ref. 58426). Found on continental slopes and down to deep-sea plains. Reported down up to 3000 m along the mid-Atlantic ridge (Ref. 83979, C.Cotton pers.comm. 03/10). Feeds on small fishes and invertebrates (Ref. 6680). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205). It is commercially used as fish meal and to produce high-quality machine oil from the liver (Ref. 117245).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Oviparous (Ref. 205).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Hardy, G.S. and M. Stehmann, 1990. A new deep-water ghost shark, Hydrolagus pallidus n.sp. (Holocephali, Chimaeridae), from the eastern North Atlantic, and redescription of Hydrolagus affinis (Brito Capello, 1867). Arch. Fisch. Wiss. 40(3):229-248. (Ref. 3330)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 02 September 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: sans intérêt
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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de données nationales | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 3.3 - 4.3, mean 3.5 °C (based on 57 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00118 - 0.00673), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.3   ±0.41 se; based on food items.
Résilience (Ref. 120179):  Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming Fec <100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (78 of 100).
Nutrients (Ref. 124155):  Calcium = 8.44 [2.45, 28.17] mg/100g; Iron = 0.345 [0.115, 0.914] mg/100g; Protein = 16.1 [10.5, 19.1] %; Omega3 = 0.299 [0.107, 0.829] g/100g; Selenium = 23.6 [7.3, 77.0] μg/100g; VitaminA = 5.7 [1.2, 25.5] μg/100g; Zinc = 0.265 [0.133, 0.516] mg/100g (wet weight); based on nutrient studies.