Olocefali (chimere) (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.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batidemersale; distribuzione batimetrica 25 - 950 m (Ref. 26346), usually 100 - 600 m (Ref. 89422). Deep-water; 34°S - 47°S
Southwest Pacific: endemic to New Zealand.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 96.0 cm TL maschio/sesso non determinato; (Ref. 26346); common length : 55.0 cm TL maschio/sesso non determinato; (Ref. 9258)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine anali: 0; Raggi anali molli: 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).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 8 - 13.7, mean 10.8 °C (based on 62 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00133 - 0.00544), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.5 ±0.46 se; based on food items.
Resilienza (Fonte Biblio.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming Fec <100).
Prior r = 0.28, 95% CL = 0.19 - 0.42, Based on 1 data-limited stock assessment.
Vulnerabilità della pesca (Ref.
59153): High vulnerability (58 of 100).
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Vulnerabilità climatica (Ref.
125649): Very high vulnerability (76 of 100).
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Nutrienti (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);
