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Eupercaria/misc (Various families in series Eupercaria) >
Gerreidae (Mojarras)
Etymology: Gerres: Latin, gerres = a kind of anchovies; cited by Plinius; akazakii: Named for Dr. Masato Akazaki.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; salmastro demersale; distribuzione batimetrica 2 - 3 m (Ref. 58476). Subtropical
Northwest Pacific: likely to be endemic in Japan.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 16.9 cm SL maschio/sesso non determinato; (Ref. 58476)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 10; Raggi dorsali molli (totale) : 9; Spine anali: 3; Raggi anali molli: 7.
Known to inhabit the vicinity of river mouth basins, which may be considered strongly related to a minimum winter sea temperature of 16°C (less than 100 m depth). Specimens were collected in inlet basins, river mouth basins, or on shallow sandy bottoms strongly affected by freshwater from nearby river mouths. However, this species rarely occurs in the shallow coastal area with almost no freshwater effect. One specimen (MUFS 9584, 135 mm SL, 3 July 1993), had a clearly matured or water-hardened (transparent) egg, giving an indication of the spawning season of the species (Ref. 58476).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Iwatsuki, Y., S. Kimura and T. Yoshino, 2007. A review of the Gerres subfasciatus complex from the Indo-west Pacific, with three new species (Perciformes: Gerridae). Ichthyol. Res. 54(2):168-185. (Ref. 58476)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Usi umani
Strumenti
Rapporti speciali
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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]. |
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Bayesian length-weight
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a=0.01413 (0.00610 - 0.03270), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.3 ±0.3 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (22 of 100). 🛈 |