Kuidas tuvastada Rudd

Kala Rudd (Scardinius erythrophthalmus) tuvastamiseks jälgi neid võtmetunnuseid.

Füüsilised omadused

Keha kuju

compressed

Värvus

Dorsal side is dark green to brownish-green, fading to golden-bronze or brassy on the flanks, and silvery-white on the belly. All fins, especially the pelvic, anal, and caudal fins, are bright red or orange-red. The iris of the eye is typically golden-yellow with a red spot.

Soomuse tüüp

cycloid

Suu asend

superior

Eristuvad tunnused

Bright red fins, particularly the pelvic, anal, and caudal fins., Upturned mouth, indicating surface feeding., Golden-bronze flanks., Dorsal fin origin is posterior to the origin of the pelvic fins., Large, easily detached scales.

Seljauim

Short, with 8-9 branched rays, originating behind the pelvic fin origin.

Sabauim

Deeply forked, bright red.

Rinnauim

Relatively short, reddish.

Eristuvad uimed

All fins, especially the lower ones, are a striking red or orange-red.

Tuvastusnõuanded

1. 1

   Mouth Position

   The Rudd has a distinctly upturned (superior) mouth, adapted for feeding at the surface. This is a key differentiator from the Roach, which has a terminal mouth.

2. 2

   Fin Coloration

   All fins, particularly the pelvic, anal, and caudal fins, are a vibrant red or orange-red. The Roach typically has reddish fins, but they are not as intensely colored, and the dorsal and pectoral fins are often greyish.

3. 3

   Dorsal Fin Origin

   The origin of the dorsal fin in Rudd is noticeably behind the origin of the pelvic fins. In the Roach, the dorsal fin origin is directly above or slightly anterior to the pelvic fin origin.

4. 4

   Body Shape

   Rudd tend to have a more compressed, deeper body profile compared to the Roach, which is generally more fusiform.

5. 5

   Eye Color

   The iris of the Rudd's eye is typically golden-yellow with a distinctive red spot, whereas the Roach has a prominent red iris.

Uuri lähemalt: Rudd