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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..

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien; brak water demersaal; diepte 2 - 3 m (Ref. 58476). Subtropical

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Northwest Pacific: likely to be endemic in Japan.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 16.9 cm SL mannelijk / geslacht onbekend; (Ref. 58476)

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Dorsale stekels (totaal) : 10; Dorsale zachte stralen (totaal) : 9; Anale stekels: 3; Anale zachte stralen: 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).

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Hoofdreferentie Upload your references | Referenties | Coördinator : Woodland, David J. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet geëvalueerd

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Gebruik door de mens

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Estimates based on models

Preferred temperature (Ref. 123201): 20.2 - 24.3, mean 21.6 °C (based on 90 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01413 (0.00602 - 0.03315), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.3 ±0.3 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (11 of 100).

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Gerres akazakii Iwatsuki, Kimura & Yoshino, 2007