Actinopterygii (ray-finned fishes) > Gadiformes
(Cods) > Macrouridae
(Grenadiers or rattails) > Macrourinae
Etymology: Nezumia: A Japanese word that means "mouse" . More on authors: Smith & Radcliffe.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; non-migratory; depth range 355 - 910 m (Ref. 1371). Deep-water; 4°C - 8°C (Ref. 1371); 35°N - 8°N, 119°E - 143°E (Ref. 1371)
Western Pacific: southern Japan, East China Sea, and the Philippines. Distribution is probably continuous between these points.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 37.0 cm TL male/unsexed; (Ref. 1371)
spines: 0. Snout short, conical, with broad, spiny terminal and lateral scutes; underside of the snout and part of the infraorbital region naked; mandibular rami with small deciduous scales posteriorly; pores large and prominent on head. Pyloric caeca 24 to 31. Body scales with long slender, conical to hastate spinules. Overall color dark brown, abdomen blackish; mouth grayish; gill cavity whitish with blackish margins; pelvic fins blackish, other fins dusky.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 7.1 - 11.9, mean 9 (based on 35 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00097 - 0.00516), b=3.16 (2.97 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (44 of 100) .