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Actinopterygii (ray-finned fishes) > Scorpaeniformes (Scorpionfishes and flatheads) > Scorpaenidae (Scorpionfishes or rockfishes) > Scorpaeninae
Etymology: Idiastion: Greek, idiastes = that lives shy (Ref. 45335).

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 350 - 430 m (Ref. 91153). Deep-water, preferred ?

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North Central Pacific: Kyushu-Palau Ridge and Emperor Seamounts.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 12.8 cm SL male/unsexed; (Ref. 10940)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 5; Vertebrae: 25. This species is distinguished by the following set of characters: 9 dorsal-fin rays 9; 17-19 pectoral- fin rays; ctenoid scales in interorbital space and cycloid scales on belly; origin of the first dorsal-fin spine is slightly posterior to a vertical drawn through supracleithral spine base; posterior tip of pectoral fin do not reach the anal-fin origin; head length 44.4-46.0% SL (Ref. 91153).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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Ishida, M. and K. Amaoka, 1992. A new species of the fish genus Idiastion (Pisces: Scorpaenidae) from the Kyushu-Palau Ridge, Western Pacific. Jap. J. Ichthyol. 38(4):357-360. (Ref. 10940)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.7 ±0.6 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): Low to moderate vulnerability (35 of 100) .

Entered by Capuli, Estelita Emily

Modified by Capuli, Estelita Emily

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Idiastion pacificum Ishida & Amaoka, 1992