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Gerres akazakii Iwatsuki, Kimura & Yoshino, 2007

Japanese tenspined silver-biddy
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Native range | All suitable habitat | Point map | Year 2050
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Gerres akazakii   AquaMaps   Data sources: GBIF OBIS
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Image of Gerres akazakii (Japanese tenspined silver-biddy)
No image available for this species;
drawing shows typical species in Gerreidae.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> 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 Écologie

marin; saumâtre démersal; profondeur 2 - 3 m (Ref. 58476). Subtropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: likely to be endemic in Japan.

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 16.9 cm SL mâle / non sexé; (Ref. 58476)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 10; Rayons mous dorsaux (Total) : 9; Épines anales: 3; Rayons mous anaux: 7.

Biologie     Glossaire (ex. epibenthic)

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).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur : Woodland, David J. | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Non évalué 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme






Utilisations par l'homme

FAO - Publication: search | FishSource |

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 20.2 - 24.3, mean 21.6 °C (based on 90 cells).
Phylogenetic diversity index (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).
Niveau trophique (Ref. 69278):  3.3   ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (11 of 100).