Olocefali (chimere) (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
Ecologia
marino batidemersale; distribuzione batimetrica 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 / Size / Peso / Age
Maturity: Lm 125.0, range 108 - 129.5 cm
Max length : 159 cm TL maschio/sesso non determinato; (Ref. 122636); peso massimo pubblicato: 3.2 kg (Ref. 122636)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 1; Spine anali: 0; Raggi anali molli: 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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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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 - 0.00162), b=3.11 (2.97 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming Fec <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).