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Teleostei (teleosts) > Perciformes/Scorpaenoidei (Scorpionfishes) > Scorpaenidae (Scorpionfishes or rockfishes) > Scorpaeninae
Etymology: Idiastion: Greek, idiastes = that lives shy (Ref. 45335); hageyi: Named for Harry R. Hagey, fisherman, naturalist and supporter of the California Academy of Sciences.
Eponymy: Harry R Hagey (d: 1941) is a board member (since 2017) of Nature Conservancy. [...] (Ref. 128868), visit book page.
More on author: McCosker.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; benthopelagic; depth range 522 - ? m (Ref. 75873). Tropical; 18°S - , 91°W -

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Pacific Ocean: Galápagos Islands

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.5 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 6; Vertebrae: 25. Body deep (depth 44% SL), compressed posteriorly and humpbacked; orbit diameter large (15% SL); head spines strong, well-developed; no distinct small papillae on head; a distinct row of papillae nearly surrounds outer edge of pupil; swimbladder present; coloration reddish-orange, with irregular white blotches on head, body, and pectoral fin bases (Ref. 75873).

Observed to occupy steep boulder and sediment-laden bottoms, along 60° slope (Ref. 75873).

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

Main reference Upload your references | References | Coordinator | Collaborators

McCosker, J.E., 2008. Trachyscorpia osheri and Idiastion hageyi, two new species of deepwater scorpionfishes (Scorpaeniformes: Sebastidae, Scorpaenidae) from the Galápagos Islands. Proc. Calif. Acad. Scie. 59(3):113-123. (Ref. 75873)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 15 September 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

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Length-weight rel.
Length-length rel.
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Life cycle
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01288 (0.00620 - 0.02676), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.6 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Idiastion hageyi McCosker, 2008