Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Gymnogobius: Greek, gymnos = naked + Latin, gobius = gudgeon (Ref. 45335).
More on author: Tanaka.

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

; acqua dolce pelagico; non migratori. Temperate

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Asia: endemic to Lake Biwa, Japan. Introduced to Lakes Kasumigaura and Sagami.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.0 cm SL maschio/sesso non determinato; (Ref. 43239)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 7; Raggi dorsali molli (totale) : 10; Spine anali: 1; Raggi anali molli: 10.

Inhabit offshore areas in the lake almost throughout the year (Ref. 76915). Spawn in spring (Ref. 76915). Semelparous (Ref. 76911). Males care for the eggs in nest (Ref. 76913). Caught for food (Ref. 559).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Migrate to the shore to spawn under stones in spring (Ref. 76915). Males have only two brood cycles, mating with the same female during each breeding cycle (Ref. 76915).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition II. Tokai University Press, Japan, pp 867-1749. (Ref. 43239)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(iii)); Date assessed: 07 December 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: scarso interesse commerciale

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori

Ecology
Ecologia

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali

Distribution
Stati
Aree FAO
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Anatomy
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Cervelli
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Physiology
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Nutrients
Oxygen consumptions
Swimming type
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Visual pigment(s)
Suoni dei Pesci
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetica
Electrophoreses
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Human related
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Profili di acquacoltura
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Stamps, coins, misc.

Outreach
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Taxonomy
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References
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Fonti Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00832 (0.00721 - 0.00960), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.3 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Price category (Ref. 80766): Very high.

Gymnogobius isaza (Tanaka, 1916)