Holocéphales (chimères) (chimaeras) >
Chimaeriformes (Chimaeras) >
Rhinochimaeridae (Longnose chimaeras)
Etymology: Rhinochimaera: A chimaera with rhinos (Gr.), nose, referring to long, pointed proboscis of R. pacifica (See ETYFish); pacifica: ana- (L.), belonging to: Pacific Ocean, described as a Pacific congener of Harriotta raleighana (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; profondeur 330 - 1490 m (Ref. 26346). Deep-water; 46°N - 50°S
Pacific Ocean: Japanese Archipelago to the South China Sea, and off Australasia and Peru.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 125.0, range 108 - 129.5 cm
Max length : 159 cm TL mâle / non sexé; (Ref. 122636); poids max. publié: 3.2 kg (Ref. 122636)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Épines anales: 0; Rayons mous anaux: 0. Pale brown dorsally, grey-brown ventrally; snout and front of head white (Ref. 26346). A spookfish with a very long, narrow, conical snout, a small eye situated behind the mouth, a rather long first dorsal fin and spine, relatively smooth tooth plates, and with the lower caudal-fin lobe longer than the upper lobe (Ref. 6871).
Found on the continental slope (Ref. 7300). Maximum length 130 cm without caudal filament (Ref. 26346). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 5 - 9.8, mean 7.1 °C (based on 517 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6289 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00100 (0.00062 - 0.00161), b=3.11 (2.97 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.9 ±0.5 se; based on size and trophs of closest relatives
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 (90 of 100).
