Teleostei (teleosts) >
Perciformes/Uranoscopoidei (Sand dwellers) >
Pinguipedidae (Sandperches)
Etymology: Parapercis: Greek, para = the side of + Greek, perke = perch (Ref. 45335).
Eponymy: Dr Osamu Okamura was Professor Emeritus at the Laboratory of Natural Science, Kochi University, where he was Professor of Zoology (1989). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Subtropical
Northwest Pacific: Japan and Taiwan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL male/unsexed; (Ref. 559)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 5; Dorsal soft rays (total): 23; Anal spines: 1; Anal soft rays: 19 - 20. This species is distinguished from its congeners by the following set of characters: D V,23 with spines larger posteriorly; A I,19-20 (modally 19); pectoral-fin rays 18; lateral-line scales 60-61, median predorsal scales 9-10; opercular spines 2; moderate eye with eye/head length as 36.1-38.8% (mean 37.7%); mouth somewhat large with mouth/head length 34.7-35.2% (mean 35.1%); mandibular pores 3+2+3. Colouration: body with dorsally 2/3 region generally creamy yellow and about 11-12 crossing yellow stripes below mid-lateral body; spiny dorsal fin region is pale; upper jaw mostly yellow; pectoral fin with a cluster of black marks dorsally; caudal fin uniformly yellow in lower half with about 4 vertical yellow lines, its upper base bears a large deep black blotch (Ref. 94988).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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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=0.00692 (0.00314 - 0.01524), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.4 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).
