Morphology Data of Perca fluviatilis
Identification keys
Abnormalities
Main Ref. Keith, P. and J. Allardi (coords.), 2001
Appearance refers to
Bones in OsteoBase Skull, Spine

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales
Diagnosis

Diagnosed from other species of Percidae in Europe by having the following unique characters: pelvic and anal fins yellow to red; posterior part of first dorsal fin with dark blotch; and flank with 5-8 bold dark bars, usually Y-shaped. Differs further by the combination of the following features: two dorsal fins, clearly separated from each other; and 56-77 scales along lateral line (Ref. 59043). Body greenish-yellow; 5-9 transverse black bands on the sides; first dorsal fin gray, black spot at the tip; second dorsal greenish-yellow; pectorals yellow; other fins red. First dorsal fin markedly higher than the second. Caudal fin emarginate (Ref. 2058).

Ease of Identification

Meristic characteristics of Perca fluviatilis

Lateral Lines Interrupted: No
Scales on lateral line 53 - 77
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 7 - 10
Scale rows below lateral line 12 - 21
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 14 - 20
on upper limb
total
Vertebrae
preanal
total 39 - 42

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 14 - 20
Soft-rays total 13 - 16
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 7 - 10

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   11 - 17
Pelvics Attributes  more or less normal
Position    thoracic  behind origin of D1
Spines     1
Soft-rays   5 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
Modified by Reyes, Rodolfo B.
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