Japan country information

Common names: Japanese tenspined silver-biddy, Sedaka-daimyosagi
Occurrence: endemic
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, mouth of Kaeda River, just under Kisaki Oohashi (bridge for Route 220), Aoshima, Miyazaki, MUFS 22815 (holotype of Gerres akazakii, 16.9 cm SL, male). Known only from the Pacific coasts of Honshu I., Shikoku I., Kyushu I., and Tanega I. (Kagoshima), southern Japan (Ref. 58476).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Iwatsuki, Y., S. Kimura and T. Yoshino, 2007
National Database:

Common names from other countries

Sedaka-daimyosagi, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | 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 Ökologie

seewasser; brackwasser demersal; tiefenbereich 2 - 3 m (Ref. 58476). Subtropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Northwest Pacific: likely to be endemic in Japan.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 16.9 cm SL Männchen/unbestimmt; (Ref. 58476)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 10; Rückenflossenweichstrahlen (insgesamt): 9; Afterflossenstacheln 3; Afterflossenweichstrahlen: 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Woodland, David J. | Partner

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)

IUCN Rote Liste Status (Ref. 130435)

Nicht untersucht

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Nutzung durch Menschen

FAO(Publication : search) | FishSource |

Mehr Information

Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
Stocks
Ökologie
Nahrung
Nahrungsorganismen
Nahrungsaufnahme
Nahrungsmenge

Namen
Synonyme
Metabolismus
Räuber
Ökotoxikologie
Fortpflanzung
Geschlechtsreife
Ablaichen
Fecundity
Eier
Eientwicklung

Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Längenhäufigkeiten
Morphometrie
Morphologie
Larven
Larven Pop.Dyn.
Rekrutierung
Dichte

Referenzen
Aquakultur
Aquakultur Profil
Zuchtlinien
Genetik
Electrophoreses
Vererbbarkeit
Krankheiten
Verarbeitung
Mass conversion

Partner
Bilder
Stamps, Coins Misc.
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

Tools

Zusatzinformationen

Aquarium Hälterung suchen | Art Datenblatt suchen | Aquakultur Datenblatt suchen

Download XML

Zusammenfassung | Point data | Namen | Photos

Internet Quellen

Estimates based on models

Preferred temperature (Ref. 115969): 20.2 - 24.3, mean 21.6 (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).

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

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

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

Gerres akazakii Iwatsuki, Kimura & Yoshino, 2007