Come identificare European Perch

Per identificare European Perch (Perca fluviatilis), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

compressed

Colorazione

Typically greenish-brown to olive on the back, fading to yellowish-white on the belly. Distinctive vertical dark bars (usually 5-9) on the flanks. Pectoral, pelvic, and anal fins are often reddish-orange, especially in breeding males.

Tipo di squame

ctenoid

Posizione della bocca

terminal

Caratteristiche distintive

Two distinct dorsal fins: the first spiny, the second soft-rayed., Rough, ctenoid scales., Large mouth with numerous small, sharp teeth., Prominent dark vertical bars on flanks., Reddish pelvic, anal, and caudal fins.

Pinna dorsale

Two dorsal fins: the first with 13-17 strong, sharp spines; the second with 1-3 spines and 13-16 soft rays. The two fins are typically separated or only narrowly joined.

Pinna caudale

Slightly forked caudal fin, often reddish.

Pinna pettorale

Paired, relatively small, and rounded.

Pinne distintive

Pelvic and anal fins are often bright reddish-orange, particularly in mature individuals.

Consigli per l'identificazione

1. 1

   Dorsal Fins

   Look for two clearly separated dorsal fins; the first is spiny and the second is soft-rayed. This is a key differentiator from many other freshwater species.

2. 2

   Vertical Bars

   The presence of 5-9 distinct dark vertical bars on the flanks is a very reliable identification feature.

3. 3

   Fin Coloration

   The reddish-orange coloration of the pelvic, anal, and caudal fins is characteristic, especially in adults.

4. 4

   Body Shape

   Its deep, compressed body and relatively large head are distinctive.

Esplora European Perch