Actinopterygii (ray-finned fishes) > Gadiformes
(Cods) > Macrouridae
(Grenadiers or rattails) > Macrourinae
Etymology: Nezumia: A Japanese word that means "mouse" . More on author: Iwamoto.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 400 - 1600 m (Ref. 11953). Deep-water
Southeast Atlantic and Southwest Indian Ocean: known only from off Saldanha Bay, Cape west coast to Richards Bay, Natal, South Africa.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 38.5 cm TL male/unsexed; (Ref. 11953)
Although most captures have been made with bottom trawls, specimens have recently been taken in midwater trawls fished close to the bottom, suggesting forays to the water column by individuals of different sizes (Ref. 11953).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Iwamoto, T. and E. Anderson, 1994. Review of the grenadiers (Teleostei: Gadiformes) of southern Africa, with descriptions of four new species. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (61):1-28. (Ref. 11953)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 2.1 - 9.4, mean 6.3 (based on 41 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00097 - 0.00495), b=3.17 (2.98 - 3.36), 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. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (45 of 100) .