Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 360 - 570 m (Ref. 5222). Deep-water; 27°N - 23°N, 133°E - 137°E (Ref. 5222)
Northwest Pacific: known only from a single specimen taken from the Minami-Koto Seamount which lies on the Kyushu-Palau Ridge.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 118 cm TL male/unsexed; (Ref. 4787)
Dorsal spines (total): 11; Dorsal soft rays (total): 14; Anal spines: 3; Anal soft rays: 8. Upper edge of operculum convex; posterior nostril of large adults broadly oval, its diameter about 3 times that of the anterior nostril; ventral edge of the maxilla with a step-like expansion distally. Color is uniformly grayish brown, the fins darker. Characterized further by the following: robust body, depth contained 2.7 times in SL; body width 2.25 times in the depth; head length 2.4 times in SL; slightly convex interorbital area, width 4.4 times in HL; upper edge of operculum convex; large adults with broadly oval posterior nostrils, diameter about 3 times that of anterior nostril; step-like expansion on ventral edge of maxilla; 3 rows of teeth on midlateral part of lower jaw; inner symphyseal teeth of upper jaw not enlarged (Ref. 89707).
The only known specimen was collected in a trawl from Minami-Koto Seamount, Kyushu-Palau Ridge (Ref. 89707).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Heemstra, P.C. and J.E. Randall, 1993. FAO Species Catalogue. Vol. 16. Groupers of the world (family Serranidae, subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rockcod, hind, coral grouper and lyretail species known to date. Rome: FAO. FAO Fish. Synop. 125(16):382 p. (Ref. 5222)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
Download XML
Internet sources
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=0.01175 (0.00568 - 0.02430), b=3.04 (2.88 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.0 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (71 of 100).
