Como identificar African Sharptooth Catfish

Para identificar African Sharptooth Catfish (Clarias gariepinus), observe estas características principais.

Características físicas

Formato do corpo

eel-like

Coloração

Highly variable, typically dark olive to black on the dorsal surface, fading to lighter grey or white on the ventral side. Some individuals may exhibit mottled patterns. Coloration can adapt to the environment, providing camouflage.

Tipo de escama

none

Posição da boca

terminal

Características distintivas

Broad, flattened head, Four pairs of prominent barbels (one nasal, one maxillary, two mandibular), Long dorsal fin extending from behind the head almost to the caudal fin, without spines, Long anal fin, also spineless, extending from the anus to the caudal fin, Absence of an adipose fin, Small eyes, Accessory breathing organ (suprabranchial organ) allowing air breathing

Nadadeira dorsal

Very long, soft-rayed, extending from the nape almost to the caudal fin, without spines. Typically 61-80 rays.

Nadadeira caudal

Rounded or slightly emarginate, distinct from dorsal and anal fins.

Nadadeira peitoral

Relatively small, with a strong, serrated spine at the leading edge. Typically 8-11 rays.

Nadadeiras características

Pelvic fins are small and located abdominally. Anal fin is also very long, soft-rayed, and spineless, with 45-60 rays.

Dicas de identificação

1. 1

   Head Shape

   Look for a distinctly broad and flattened head, which is characteristic of Clarias species.

2. 2

   Barbels

   Count the four pairs of prominent barbels around the mouth. This is a key identifier for Clarias gariepinus.

3. 3

   Dorsal and Anal Fins

   Observe the very long, spineless dorsal and anal fins that extend almost to the caudal fin, but are separate from it. The absence of an adipose fin is also important.

4. 4

   Body Shape

   Note the elongated, cylindrical body, which is typical for this species.

5. 5

   Pectoral Spine

   Feel for the strong, serrated spine at the leading edge of the pectoral fins. Handle with caution.

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