Actinopterygii (ray-finned fishes) > Gadiformes
(Cods) > Macrouridae
(Grenadiers or rattails) > Macrourinae
Etymology: Nezumia: A Japanese word that means "mouse" . More on authors: Iwamoto & Williams.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 688 - 854 m (Ref. 35909). Deep-water; 26°S - 30°S
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Indian Ocean: known only from Western Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm TL male/unsexed; (Ref. 35909)
Morphology | Morphometrics
spines: 0. pelvic fin rays 11-12; height first dorsal less than head length; underside of head including lower jaw naked, without prominent sensory pores; scales covered with tiny spinules in parallel to slightly convergent rows; 10-11 scale rows below origin of second dorsal fin, about 50 lateral line scales from anterior origin over distance equal to predorsal length; dark color of trunk confined to abdomen, not extending onto dorsum; first dorsal fin pale with blackish tip; anterior dermal window of light organ small, situated between pelvic fin bases; tip of tail distinctly pale over posterior 1/4-1/5th of fin, from about 90th anal ray. Snout protruding, angular.
A benthic species found on the continental slope (Ref. 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Iwamoto, T. and A. Williams, 1999. Grenadiers (Pisces, Gadiformes) from the continental slope of western and northwestern Australia. Proc. Calif. Acad. Sci. 51(3):105-243. (Ref. 35909)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.5 - 9, mean 5.2 (based on 12 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
): Low to moderate vulnerability (31 of 100) .