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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.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino; salobre demersal; rango de profundidad 2 - 3 m (Ref. 58476). Subtropical
Northwest Pacific: likely to be endemic in Japan.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 16.9 cm SL macho / no sexado; (Ref. 58476)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 10; Radios blandos dorsales (total) : 9; Espinas anales: 3; Radios blandos anales: 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 vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Usos humanos
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 20.2 - 24.3, mean 21.6 °C (based on 90 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00607 - 0.03285), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Resiliencia (Referencia
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (11 of 100).
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