Teleostei (teleosts) >
Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Kuronezumia: Japanese, kuronezumia = black mouse or rat. Personnal communication of Tomio I. Curator in the Calif. Academy of Sciences, Ichthyology.
More on authors: Gilbert & Hubbs.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 355 - 692 m (Ref. 9950). Deep-water
Northwest Pacific: rsstricted to Japan and Taiwan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 42.0 cm TL male/unsexed; (Ref. 123356)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 2; Dorsal soft rays (total): 9 - 10; Vertebrae: 9 - 11. This species is distinguished by the following characters: no large, scaly, tubercular swelling anterior to the anus; pelvic-fin rays 11-12; without enlarged scutes at snout tip; absence of open pores along the cephalic sensory canals; mandibular rami scaled posteriorly; naked branchiostegal membranes; body scales covered with long, moderately erect, needle-like spinules densely scattered over exposed portion; D1 II,9-10; pectoral-fin rays i21-i26; inner gill rakers on first arch 9-11; upper-jaw length 30-35% HL. Colouration: first dorsal fin uniformly black and oral cavity blackish (Ref. 123356).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakayama, N., 2020. Grenadiers (Teleostei: Gadiformes: Macrouridae) of Japan and adjacent waters, a taxonomic monograph. Megataxa 3(1):1-383. (Ref. 123356)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
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).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (32 of 100).
