Teleostei (teleosts) >
Perciformes/Scorpaenoidei (Scorpionfishes) >
Scorpaenidae (Scorpionfishes or rockfishes) > Scorpaeninae
Etymology: Sebastapistes: Greek, sebastes = august, venerable + Greek apistia, -as = distrust (Ref. 45335); perplexa: Derived from the latern word "perplexa" meaning confused, referring to the confused taxonomic status of the species.
the species.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 2 - 48 m (Ref. 118151). Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 118151)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 11 - 12; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 5. This species is distinguished by the following set of characters: D XII,9; A III,5; pectoral-fin rays 12-15 (mode 14); scale rows in longitudinal series 33-42; scale rows above lateral line 4-5; scale rows below lateral line 9-13; scale rows between sixth dorsal-fin spine base and lateral line 3-4; scale rows between last dorsal-fin spine base and lateral line 3-5; predorsal scale rows 2-4; gill rakers 11-17; with palatine teeth; body with ctenoid scales; simple anterior and posterior lacrimal spines; no lateral lacrimal spine and ridge; first and second suborbital ridges are fused to form single ridge with one suborbital spine at its end; lower opercular spine has a median ridge; opercular spines are not covered by scales; interorbital ridges are poorly developed, with shallow channel between ridges; coronal spines are usually absent, but poorly developed spines are rarely present. Colouration: a dark blotch is usually observed on subopercle and pectoral-fin base which is distinct in preserved specimens and males with a blurred dark blotch on spinous portion of dorsal (Ref. 118151).
Cross section: compressed.
Occurs mainly on rocky reefs and also on sandy bottoms scattered among rocky reefs (Ref. 118151).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Motomura, H., M. Aizawa and H. Endo, 2014. Sebastapistes perplexa, a new species of Scorpionfish (Teleostei: Scorpaenidae) from Japan. Species Diversity 19:133-139. (Ref. 118151)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00689 - 0.04588), b=3.04 (2.82 - 3.26), 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).
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