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); novaezealandiae: novus (L.), new, i.e., of New Zealand, in whose waters it occurs (See ETYFish).
More on author: Fowler.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathydémersal; profondeur 25 - 950 m (Ref. 26346), usually 100 - 600 m (Ref. 89422). Deep-water; 34°S - 47°S
Southwest Pacific: endemic to New Zealand.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 96.0 cm TL mâle / non sexé; (Ref. 26346); common length : 55.0 cm TL mâle / non sexé; (Ref. 9258)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines anales: 0; Rayons mous anaux: 0. Dark grey dorsally, with silver-white markings, pale silver-grey ventrally (Ref. 26346).
Body shape (shape guide): elongated.
Inhabits the outer continental shelf and upper slope (Ref. 26346). Feeds on crustaceans, shellfish, worms and small fish (Ref. 26346). Maximum length 87 cm without tail filament (Ref. 26346), assumed to have 96 cm TL. Marketed as fillets (Ref. 26346).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, young hatch from egg case at about 9-12 cm (Ref. 26346).
Cox, G. and M. Francis, 1997. Sharks and rays of New Zealand. Canterbury Univ. Press, Univ. of Canterbury. 68 p. (Ref. 26346)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00269 (0.00133 - 0.00547), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.5 ±0.46 se; based on food items. |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming Fec <100). |
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Rate of population increase |
Prior r = 0.28, 95% CL = 0.19 - 0.42, Based on 1 data-limited stock assessment. |
Vulnérabilité de la pêche (Ref. 59153) |
High vulnerability (61 of 100). 🛈 |
Vulnérabilité climatique (Ref. 125649) |
Very high vulnerability (76 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
High.
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Nutriments (Ref. 124155) |
Calcium = 11.4 [3.1, 38.0] mg/100g; Iron = 0.389 [0.134, 0.967] mg/100g; Protein = 15.9 [10.4, 19.0] %; Omega3 = 0.266 [0.100, 0.709] g/100g; Selenium = 18 [5, 59] μg/100g; VitaminA = 6.22 [1.30, 27.04] μg/100g; Zinc = 0.326 [0.172, 0.627] mg/100g (wet weight); |