Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino demersale; distribuzione batimetrica 0 - 21 m (Ref. 27223). Temperate
Northwest Pacific: Japan including the Ryukyu Islands, China, Korea, Taiwan, Hong Kong, and Viet Nam.
Size / Peso / Age
Maturità: Lm ? range ? - ? cm
Max length : 5.9 cm TL maschio/sesso non determinato; (Ref. 117049)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 16 - 18; Raggi dorsali molli (totale) : 9 - 11; Spine anali: 1; Raggi anali molli: 19 - 21. Dorsal fin: III, XIII-XV (modally XIV), 9-11 (typically10). Anal fin: I, 19-21 (rarely 19). Lateral line with 17-20 (typically 18) pored scales and 16-20 (typically 18) notched scales. Pattern of mandibular pore 4+1+4. Lobate supraorbital cirrus. Nasal cirrus bearing forked tips. First dorsal fin higher or same height as second dorsal fin. Female body coloration white with 4-5 brownish-red H-bars; males black with 2 white bars below junction of 2nd and 3rd dorsal fin with caudal peduncle. Caudal-fin rays bearing alternating white and reddish-brown marks. Supraoccipital sensory canal forming a flattened curve anterior to 1st dorsal fin.
Body shape (shape guide): elongated; Cross section: oval.
Adults inhabit rocky shores. They feed on algae (Ref. 9137). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).
Fricke, R., 1997. Tripterygiid fishes of the western and central Pacific, with descriptions of 15 new species, including an annotated checklist of world Tripterygiidae (Teleostei). Theses Zool. 29:1-607. (Ref. 27223)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesca: di nessun interesse
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 18.5 - 27.1, mean 23.9 °C (based on 263 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00288 - 0.01322), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 2.0 ±0.00 se; based on food items.
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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Nutrients (Ref.
124155): Calcium = 319 [148, 1,112] mg/100g; Iron = 1.21 [0.53, 2.79] mg/100g; Protein = 17.3 [15.8, 18.9] %; Omega3 = 0.364 [0.119, 1.161] g/100g; Selenium = 17.5 [5.3, 59.9] μg/100g; VitaminA = 7.19 [1.08, 51.80] μg/100g; Zinc = 2.28 [1.19, 4.02] mg/100g (wet weight);
