Slik identifiserer du Zander

For å identifisere Zander (Sander lucioperca), se etter disse kjennetegnene.

Fysiske kjennetegn

Kroppsform

elongated

Farge

Dorsal side is typically greenish-grey to brownish-grey, fading to silvery-white on the flanks and belly. Distinctive dark, vertical bars or blotches (8-12) are often present on the sides, more pronounced in younger individuals. Fins are often dusky, with the dorsal and caudal fins having dark spots or bands.

Skjelltype

ctenoid

Munnposisjon

terminal

Særtrekk

Two distinct dorsal fins: the first spiny, the second soft-rayed., Large, glassy eyes adapted for low-light vision., Prominent canine teeth on both jaws., Elongated, torpedo-shaped body., Rough, ctenoid scales.

Ryggfinne

Two dorsal fins: D1 (spiny) with 13-17 strong spines; D2 (soft-rayed) with 1-3 spines and 19-24 soft rays. The two fins are distinctly separated.

Halefinne

Caudal fin is moderately forked, with 17-19 rays.

Brystfinne

Pectoral fins are relatively small, with 13-16 rays.

Karakteristiske finner

Pelvic fins are thoracic, located directly below the pectoral fins, with 1 spine and 5 soft rays. Anal fin has 2-3 spines and 10-14 soft rays.

Identifikasjonstips

1. 1

   Dorsal Fins

   Two clearly separated dorsal fins, the first spiny and the second soft-rayed. This distinguishes it from pike (Esox lucius) which has a single dorsal fin far back on its body.

2. 2

   Eyes

   Large, somewhat glassy or opaque eyes, indicative of its crepuscular and nocturnal hunting habits.

3. 3

   Teeth

   Presence of prominent canine teeth on both jaws, a key predatory adaptation.

4. 4

   Body Shape and Coloration

   Elongated, slender body with distinct dark vertical bars or blotches on a greenish-grey to brownish-grey background, fading to white on the belly.

5. 5

   Lateral Line

   Complete and well-defined lateral line, typically with 80-100 scales.

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