SELECT DISTINCT SPECIES.Genus AS ResultField1, SPECIES.Species AS ResultField2, SPECIES.Author AS ResultField3, SPECIES.FBname AS ResultField4, SPECIES.FamCode AS ResultField5, SPECIES.SpecCode AS ID_Field, SPECIES.Length AS ResultField6, SPECIES.LTypeMaxM AS ResultField7, SPECIES.LengthFemale AS ResultField20, SPECIES.LTypeMaxF AS ResultField21, synonyms.year, FAMILIES.CommonName, FAMILIES.Family FROM (SPECIES LEFT JOIN synonyms ON SPECIES.SpecCode = synonyms.SpecCode) INNER JOIN FAMILIES ON SPECIES.FamCode = FAMILIES.FamCode WHERE (FAMILIES.FamCode =SPECIES.FamCode) AND (synonyms.valid <> 0) And ((FAMILIES.FamCode)=306) AND ((Families.Order)= 'Perciformes') AND ((Species.Genus) = 'Gymnocephalus') AND ((Species.Subfamily) = 'Percinae') And ((FAMILIES.Class)='Actinopterygii') ORDER BY species.genus, species.species Fish Identification
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Fish Identification: Find Species

Class: Actinopterygii
Order: Perciformes
Family: Percidae Perches
Subfamily: Percinae
Genus: Gymnocephalus

(See list of species below)

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5 species in
(see list below)
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Photo by Geraskin, A.

Max. Length 21 cm SL
Gymnocephalus acerina (Gmelin, 1789)

Photo by Geraskin, A.
Gymnocephalus acerina
[Donets ruffe]

Photo by Geiger, M.F.

Max. Length 11.7 cm SL
Gymnocephalus ambriaelacus Geiger & Schliewen, 2010

Photo by Geiger, M.F.
Gymnocephalus ambriaelacus

Photo by Otel, V.

Max. Length 15 cm SL
Gymnocephalus baloni Holcík & Hensel, 1974

Photo by Otel, V.
Gymnocephalus baloni
[Danube ruffe]

Photo by Bednarzik, J.

Max. Length 25 cm TL
Gymnocephalus cernua (Linnaeus, 1758)

Photo by Bednarzik, J.
Gymnocephalus cernua

Photo by Hartl, A.

Max. Length 30 cm TL
Gymnocephalus schraetser (Linnaeus, 1758)

Photo by Hartl, A.
Gymnocephalus schraetser

5 species

Sort by: Species Length Year
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Scientific Name English Name Distribution Max. Length (cm) Year
Gymnocephalus acerina Donets ruffe Europe 21 SL 1789
Gymnocephalus ambriaelacus Europe 11.7 SL 2010
Gymnocephalus baloni Danube ruffe Europe 15 SL 1974
Gymnocephalus cernua Ruffe Europe 25 TL 1758
Gymnocephalus schraetser Schraetzer Europe 30 TL 1758

Other identification tools in FishBase

Quick Identification
Identification keys
Identification by morphometrics
Identification by pictures:
          If you already know the Family, go to Search FishBase, select Family and click on 'Identification by pictures' to display all available pictures in FishBase for the family.

          If you already know the Country, go to
Search FishBase, select Country and click on 'Identification by pictures' to display all available pictures in FishBase for the country.

          If you already know the Ecosystem, go to
Search FishBase, select Ecosystem and click on 'Identification by pictures' to display all available pictures in FishBase for the ecosystem.
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