Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; oceanodromo (Ref. 51243). Subtropical; 45°N - 30°N
Northwest Pacific: southern Hokkaido to Kyushu and the southern Korean Peninsula (Ref. 559). Three morphotypes observed (reddish type; blackish type; brownish type), and may be reproductively isolated from each other (Ref. 44259).
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm ?, range 16 - ? cm
Max length : 35.9 cm TL maschio/sesso non determinato; (Ref. 96735); peso massimo pubblicato: 800.00 g (Ref. 40637)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Juveniles associate with drifting seaweed. Plankton feeder (Ref. 12114, 12115). Viviparous (Ref. 34817).
Males established territories ranging from 12 to 70 sq. m; initiated courtship when females approached the territories; lateral display, rushing and turning movements were frequently observed during courtship. Mating pair formed about 30 min before copulation; the pair ascended to 1.5-2.0 m above bottom then males suddenly coiled around the body of females to copulate.
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Acquacoltura: commerciale; Pesce da pesca sportiva: si
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.01288 (0.00989 - 0.01677), b=3.02 (2.96 - 3.08), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
4.0 ±0.67 se; based on food items. |
|
Generation time |
4.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resilienza (Fonte Biblio. 120179) |
Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.25). |
Vulnerabilità della pesca (Ref. 59153) |
Moderate vulnerability (38 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
|
Nutrienti (Ref. 124155) |
Calcium = 53.1 [20.6, 174.2] mg/100g; Iron = 0.62 [0.26, 1.68] mg/100g; Protein = 18.3 [17.0, 19.7] %; Omega3 = 0.645 [0.255, 1.731] g/100g; Selenium = 82.5 [29.3, 254.6] μg/100g; VitaminA = 10.6 [2.9, 40.2] μg/100g; Zinc = 0.447 [0.234, 0.827] mg/100g (wet weight); |