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Hydrolagus novaezealandiae (Fowler, 1911)

Dark ghost shark
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Native range | All suitable habitat | Point map | Year 2050
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Hydrolagus novaezealandiae   AquaMaps   Data sources: GBIF OBIS
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Hydrolagus novaezealandiae
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New Zealand country information

Common names: Chimaera, Dark ghost shark, Ghost shark
Occurrence: endemic
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Doonan, I.J., M. Dunn and A.C. Hart, 2009
Importance: minor commercial | Ref: Armitage, R.O., D.A. Payne, G.J. Lockley, H.M. Currie, R.L. Colban, B.G. Lamb and L.J. Paul (eds.), 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Ranges from North Cape to the Campbell Plateau, Chatham Rise and Bounty Plateau (Ref. 89422). Fairly common off central and southern New Zealand but not Campbell Plateau (Ref. 9258). Recorded in the trawl survey in Chathams Island (Ref. 45493) and off the east coast of South Island (Ref. 58461). Recorded as scarce in the Northeastern and Eastern Chatham Rise (Ref. 87166). Taken as a bycatch (Ref. 9258). Sometimes marketed as pearl fillets (Ref. 9258). Exported to Japan. Voucher specimen(s) held at the NMNZ (Ref. 5755). Also Ref. 107024.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ολοκέφαλοι (χίμαιρες) (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.

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

Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους 25 - 950 m (Ref. 26346), usually 100 - 600 m (Ref. 89422).   Deep-water; 34°S - 47°S

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Southwest Pacific: endemic to New Zealand.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 96.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 26346); common length : 55.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 9258)

Short description Μορφολογία | Μορφομετρία

Εδρικές άκανθες 0; Μαλακές εδρικές ακτίνες: 0. Dark grey dorsally, with silver-white markings, pale silver-grey ventrally (Ref. 26346).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

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).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Oviparous, young hatch from egg case at about 9-12 cm (Ref. 26346).

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Cox, G. and M. Francis, 1997. Sharks and rays of New Zealand. Canterbury Univ. Press, Univ. of Canterbury. 68 p. (Ref. 26346)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 20 June 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: περιορισμένης εμπορικότητας

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Διαδικτυακές πηγές

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Γένος, Είδη) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Δέντρο Ζωής | Wikipedia(Go, αναζήτηση) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 8 - 13.7, mean 10.8 (based on 62 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00240 (0.00122 - 0.00472), b=3.14 (2.96 - 3.32), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.5   ±0.46 se; based on food items.
Ελαστικότητα (Ref. 120179):  Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Assuming Fec <100).
Prior r = 0.28, 95% CL = 0.16 - 0.49, Based on 1 stock assessment.
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (76 of 100).
Price category (Ref. 80766):   High.