So bestimmen Sie Round Sardinella

Um Round Sardinella (Sardinella aurita) zu bestimmen, achten Sie auf diese Schlüsselmerkmale.

Körperliche Merkmale

Körperform

elongated

Färbung

Dorsal side is typically dark blue to greenish-blue, fading to silvery flanks and a white belly. A faint golden spot may be present behind the gill cover, and a series of small, dark spots may run along the flanks, especially in younger individuals, though these often fade with age.

Schuppentyp

cycloid

Maulstellung

terminal

Besondere Merkmale

Elongated, cylindrical body shape, less compressed than other sardine species., A distinct, dark spot often present at the posterior margin of the gill cover., Absence of radiating striae on the operculum (gill cover)., Last two anal fin rays are elongated., Pectoral fins are relatively long, reaching beyond the origin of the dorsal fin.

Rückenflosse

Single, relatively short dorsal fin located mid-body, typically with 17-20 soft rays.

Schwanzflosse

Deeply forked caudal fin, symmetrical.

Brustflosse

Long, slender pectoral fins, typically with 15-17 rays.

Auffällige Flossen

Anal fin is short, located posterior to the dorsal fin, with 17-20 soft rays, the last two of which are noticeably elongated.

Bestimmungstipps

1. 1

   Body Shape

   Look for the distinctly rounded, cylindrical body, which is less flattened than other sardine species like Sardina pilchardus.

2. 2

   Gill Cover Spot

   A small, dark spot is often visible at the upper posterior margin of the operculum (gill cover).

3. 3

   Anal Fin Rays

   Observe the last two rays of the anal fin; they are typically elongated and appear longer than the preceding rays.

4. 4

   Pectoral Fin Length

   The pectoral fins are relatively long, often extending past the origin of the dorsal fin when laid flat against the body.

5. 5

   Absence of Opercular Striae

   Unlike some similar species, the operculum of Sardinella aurita lacks distinct radiating ridges or striae.

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