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Hydrolagus melanophasma James, Ebert, Long & Didier, 2009

Eastern Pacific Black Ghostshark
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Hydrolagus melanophasma   AquaMaps   Data sources: GBIF OBIS
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Image of Hydrolagus melanophasma (Eastern Pacific Black Ghostshark)
Hydrolagus melanophasma
Picture by Reyes, P.

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);  melanophasma: melanos (Gr.), black, referring to color in life; phasma (Gr.), ghost or specter, alluding to the vernacular “ghostshark” (literally, a black ghost). (See ETYFish).

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

marin bathydémersal; profondeur 2 - 1720 m (Ref. 93040), usually 565 - 1720 m (Ref. 93040). Subtropical; 35°N - 40°S, 125°W - 70°W (Ref. 93040)

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

Eastern Pacific Ocean: From Baja California, Mexico to Validivia, Chile.

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 120 cm TL mâle / non sexé; (Ref. 82286)

Description synthétique Clés d'identification | Morphologie | Morphométrie

A species of the genus Hydrolagus based on the absence of an anal fin. Hydrolagus melanophasma sp. nov. is distinguished from other chimaeroids by a blunt snout with minimal sloping from the orbit to the snout tip, a large slightly curved dorsal fin spine (25.9 % BDL) extending beyond first dorsal fin apex, and a long second dorsal fin (77.3–81.1% BDL) of uniform height throughout. The pectoral fins are large, reaching beyond the pelvic fin insertion when laid flat, trifid claspers forked for 27–27.8% of the total clasper length and the preopercular and oral lateral line canals branch separately or together from the infraorbital canal. Coloration after preservation is a uniform black with no distinct mottling or markings (Ref. 82286).

Biologie     Glossaire (ex. epibenthic)

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

James, K.C., D.A. Ebert, D.J. Long and D.A. Didier, 2009. A new species of chimaera, Hydrolagus melanophasma sp. nov. (Chondrichthyes: Chimaeriformes: Chimaeridae), from the eastern North Pacific. Zootaxa 2218:59-68. (Ref. 82286)

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

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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 | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 2.6 - 6.5, mean 3.9 °C (based on 154 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):  4.0   ±0.6 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Très faible, temps minimum de doublement de population supérieur à 14 ans (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (72 of 100).
Nutrients (Ref. 124155):  Calcium = 17.4 [4.7, 51.6] mg/100g; Iron = 0.615 [0.214, 2.960] mg/100g; Protein = 16.4 [10.7, 19.5] %; Omega3 = 0.285 [0.125, 0.653] g/100g; Selenium = 54.7 [14.2, 174.3] μg/100g; VitaminA = 9.72 [2.86, 35.69] μg/100g; Zinc = 0.566 [0.279, 1.093] mg/100g (wet weight);