Teleostei (teleosts) >
Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Cetonurichthys: Greek, ketos = a marine monster, whale + Greek, oura = tail + Greek, ichthys = fish (Ref. 45335); subinflatus: Named for the seismosensory canals of the head which are less inflated than in related genera (Ref. 41160).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 1316 - 1700 m (Ref. 35909). Deep-water
Eastern Indian Ocean: Australia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 35909)
Dorsal spines (total): 2; Dorsal soft rays (total): 0. Head broad, shallow, interorbital 31-34% of HL; snout 36-42% HL, with paired tubercular scales at tip; suborbital 17-20% HL; ridge lacking stout scutelike scales; jaws short, upper jaw 24-28% HL, inferior; tooth rows short, crescent -shaped, outer premaxillary series enlarged. Cephalic sensory canal moderately dilated, lacking open pores; lateral line canal with modified scales, interrupted in places. Trunk scales small (11-13 rows between origin of first dorsal fin and lateral line), bearing erect spinules in no particular arrangement; scales along dorsal fins larger than surrounding ones; head completely scaled, including patches on gular and branchiostegal membranes. Spinous second ray of first dorsal fin with small serrations; outer ray of pelvic fins elongated. Anus midway between bases of anal and pelvic fins; periproct narrow; no dermal window of light organ. Eleven trunk vertebrae (Ref. 35909).
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. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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Estimates based on models
Preferred temperature (Ref.
123201): 1.9 - 3.7, mean 2.8 °C (based on 32 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00194 - 0.01707), b=3.08 (2.83 - 3.33), 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 (30 of 100).
