Classification / Names
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Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Nezumia: A Japanese word that means "mouse"; aspidentata: From the Latin asper, rough and dentatus, toothed, in reference to the prominent cardiform band of teeth in the jaws.
More on authors: Iwamoto & Merrett.
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους ? - 720 m (Ref. 35908). Deep-water
Western Central Pacific: known from a single specimen taken off the Chesterfield and Bellona Plateau.
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 20.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 35908)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 2. Height first dorsal greater than head length. Underside of snout, suborbital and all of mandibular rami naked; prominent open pores on lower jaws and ventral margin of suborbital region. Spinules on body scales needlelike, in subparallel to convergent rows; about 38 lateral line scales over distance equal to predorsal length. Snout conical, bluntly pointed, about 34% of HL. Mouth small, upper jaw 26% of HL. Teeth in notably broad, short, cardiform bands in both jaws. No dark band encircling trunk; first dorsal fin dusky overall. Anterior dermal window of light organ between pelvic bases, in advance of insertions. Barbel small, more than 3 into orbit, about 6% of HL; preoral length 28%; postorbital length 38%; orb.-preop. 30%.
Body shape (shape guide): elongated.
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Iwamoto, T. and N.R. Merrett, 1997. Pisces Gadiformes: Taxonomy of grenadiers of the New Caledonian region, southwest Pacific. Mem. Mus. Natl. Hist. Nat. (176):473-570. (Ref. 35908)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00109 - 0.00421), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.3 ±0.1 se; based on size and trophs of closest relatives
Ελαστικότητα (Αναφ.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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