Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Perciformes/Serranoidei (Groupers) >
Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Plectranthias: Greek, plektron = anyhting to strike with, spur + Greek, anthias = a fish, Sparus aurata (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 150 m (Ref. 132549). Subtropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: Japan (Ryukyu Is.).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL male/unsexed; (Ref. 132549)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from P. ryukyuensis by the following set of characters: pectoral-fin rays 12-13; scale rows below the lateral line 10; supraneurals 2, small head, its length 42.5% SL, with rounded upper profile; slightly convex in postorbital region; eye small, its diameter 11.9% SL; anterodorsal margin is not protruding above the dorsal head profile; caudal fin is slightly convex; fourth dorsal-fin spine long, its length 20.0% SL; pre-pelvic-fin short, its length 34.8% SL; pectoral fin short, its length 37.0% SL; pelvic-fin spine long, its length 19.6% SL. Colouration: body with an arched orange band from bases of 7th to 9th dorsal-fin spines to middle of caudal-fin base; yellowish-orange spots and blotches on the snout, cheek, jaws, nape, and spinous portion of the dorsal fin (Ref. 132549).
Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Koeda, K., N. Muto and H. Wada, 2021. Plectranthias kojii sp. nov., a new perchlet (Perciformes: Serranidae: Anthiinae) from Okinawa, Japan. Ichthyol. Res. 69(3):352-360.
Erratum appeared in Ichthyological Research online first, 1 p., on 3 Dec. 2021 [69(3):361]. (Ref. 132549)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
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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