Como identificar Round Sardinella

Para identificar Round Sardinella (Sardinella aurita), observe estas características principais.

Características físicas

Formato do corpo

torpedo

Coloração

Dorsal side is dark blue to greenish-blue, fading to silvery flanks and a white belly. A faint golden stripe may be present along the sides, especially in fresh specimens, giving rise to the 'gilt sardine' common name. No distinct spots or markings on the body.

Tipo de escama

cycloid

Posição da boca

terminal

Características distintivas

Elongated, cylindrical body, less compressed than other sardine species., A distinct, dark spot often present at the posterior margin of the gill cover (operculum)., Absence of dark spots along the flanks (distinguishing it from some other Sardinella species)., Relatively large eye., Small, deciduous scales.

Nadadeira dorsal

Single dorsal fin, centrally located, with 17-20 soft rays. Originates slightly anterior to the midpoint of the body.

Nadadeira caudal

Deeply forked caudal fin, symmetrical lobes.

Nadadeira peitoral

Small, low-set pectoral fins with 15-17 rays.

Nadadeiras características

Pelvic fins are small, located beneath the dorsal fin origin. Anal fin is short, located far back on the body, with 15-19 soft rays.

Dicas de identificação

1. 1

   Body Shape

   Look for an elongated, cylindrical body, which is less compressed laterally compared to other sardine species like Sardina pilchardus.

2. 2

   Coloration

   Observe the dark blue-green dorsal side and silvery flanks. The absence of distinct dark spots along the sides (unlike Sardinella maderensis) is a key identifier.

3. 3

   Gill Cover Spot

   Check for a small, dark spot at the posterior edge of the operculum (gill cover), which is often present and can be a useful distinguishing mark.

4. 4

   Scales

   Note the relatively large, easily shed (deciduous) cycloid scales.

5. 5

   Keel Scutes

   Count the number of pre-pelvic and post-pelvic scutes (bony scales along the belly). S. aurita typically has 18-19 pre-pelvic and 13-15 post-pelvic scutes, totaling 31-34.

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