Como identificar Bagre

Para identificar Bagre (Siluriformes), observe estas características principais.

Características físicas

Formato do corpo

elongated

Coloração

Typically silvery-grey to brownish on the dorsal surface, fading to white or pale on the ventral side. Some species may have darker mottling or spots.

Tipo de escama

none

Posição da boca

terminal

Características distintivas

Scaleless body, Four pairs of barbels around the mouth (two maxillary, two mental), Strong, serrated, venomous spines at the origin of the dorsal and pectoral fins, Adipose fin present (small, fleshy fin between dorsal and caudal fins), Elongated, depressed head, Often filamentous extensions on the dorsal and pectoral fins (especially in Bagre marinus)

Nadadeira dorsal

Single, short-based dorsal fin with a strong, serrated spine and 6-7 soft rays. Often has a long, filamentous extension.

Nadadeira caudal

Deeply forked caudal fin.

Nadadeira peitoral

Pectoral fins with a strong, serrated spine and several soft rays. Often has a long, filamentous extension.

Nadadeiras características

Adipose fin present, small and fleshy. Pelvic fins are abdominal.

Dicas de identificação

1. 1

   Barbels

   Presence of four pairs of barbels around the mouth, which are sensory organs used for foraging in murky waters.

2. 2

   Fin Spines

   Distinctive, strong, serrated spines at the leading edge of the dorsal and pectoral fins. These spines are venomous.

3. 3

   Scaleless Body

   Smooth, scaleless skin, typical of catfishes.

4. 4

   Filamentous Fins (Bagre marinus)

   In Bagre marinus, the dorsal and pectoral fins often have long, trailing filaments, which are a key distinguishing feature from other Ariidae.

5. 5

   Caudal Fin

   Deeply forked tail fin.

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