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).
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 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [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).
