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Apristurus nakayai Iglésias, 2013

Milk-eye catshark
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Apristurus nakayai
Picture by Iglesias, S.P.

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

Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus) (See ETYFish)nakayai: In honor of ichthyologist Kazuhiro Nakaya (b. 1945), Hokkaido University (Japan), who has dedicated his research on Apristurus, describing eight new species and revising the genus in 2009 (See ETYFish).
Eponymy: Dr Kazuhiro Nakaya (d: 1945) is a Japanese ichthyologist and marine scientist who specialises in the taxonomy and evolution of sharks and rays, and also the fish of Lake Tanganyika. [...] (Ref. 128868), visit book page.

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

Θαλασσινό(ά) βαθυπελαγικό(ς); εύρος βάθους 953 - 1022 m (Ref. 93246). Deep-water; 21°S - 22°S, 157°E - 158°E (Ref. 93246)

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

Pacific Ocean: New Caledonia.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 67.6 cm TL αρσενικό/απροσδιόριστο; (Ref. 93246)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

A medium-sized species of Apristurus of the brunneus group with the following combination of characters: shiny white iris on fresh specimen; brownish black colouration; short interspace from P1 free rear tip to P2 origin, subequal to internarial width; midpoint of the total length located well behind cloaca; pectoral fins large, width about 2.7 times P1 tip-P2 origin; long anal-fin base, longer than D1 insertion-D2 insertions; first dorsal fin located well behind pelvic-fin insertion; first dorsal fin markedly smaller than second one; long caudal fin terminal lobe, its length more than twice its height; no denticles in the mouth; very short pyloric stomach; intestinal spiral valves 16; monospondylous vertebrae 36; precaudal diplospondylous vertebrae 37 (Ref. 92346).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

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

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Iglésias, S.P., 2012. Apristurus nakayai sp. nov., a new species of deepwater catshark (Chondrichthyes: Pentanchidae) from New Caledonia. Cybium 36(4):511-519. (Ref. 93246)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 22 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Σύσταση δίαιτας
Κατανάλωση τροφής
Food rations
Θηρευτές
Ecology
Οικολογία
Population dynamics
Παράμετροι Αύξησης
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Στρατολόγηση
Αφθονία
Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Maturity/Gills rel.
Γονιμότητα
Γεννοβολία
Spawning aggregations
Αβγά
Egg development
Προνύμφες
Δυναμική προνυμφών
Distribution
Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
BRUVS - Videos
Anatomy
Επιφάνεια βραγχίων
Brain
Otolith
Physiology
Body composition
Nutrients
Κατανάλωση οξυγόνου
Κολυμβητικός τύπος
Ταχύτητα κολύμβησης
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Γενετική
Heterozygosity
Κληρονομικότητα
Human related
Aquaculture systems
Προφίλ υδατοκαλλιεργειών
Στελέχοι
Ciguatera cases
Stamps, coins, misc.
References
Αναφορές

Εργαλεία

Special reports

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Διαδικτυακές πηγές

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Γένος, Είδη | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Δέντρο Ζωής | Wikipedia: Go, αναζήτηση | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.9   ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (47 of 100).