Come identificare Black Goby

Per identificare Black Goby (Gobius niger), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

elongated

Colorazione

Generally dark brown to black, often mottled with lighter patches or spots, providing camouflage against the substrate. During breeding season, males become intensely black with iridescent blue or green spots on the fins. Females are typically lighter brown.

Tipo di squame

ctenoid

Posizione della bocca

terminal

Caratteristiche distintive

Two dorsal fins, the first with 6-7 spines, the second with 1 spine and 12-15 soft rays., Pelvic fins fused into a suction cup-like disc., Large head with prominent eyes positioned dorsally., A distinct black spot on the anterior part of the first dorsal fin (more pronounced in males)., Lateral line absent.

Pinna dorsale

Two dorsal fins; the first is spiny (D1 VI-VII), the second is soft-rayed (D2 I/12-15). The first dorsal fin is typically higher than the second.

Pinna caudale

Rounded caudal fin.

Pinna pettorale

Large and rounded pectoral fins.

Pinne distintive

Pelvic fins are completely fused to form a single, anteriorly concave, adhesive disc, characteristic of gobies.

Consigli per l'identificazione

1. 1

   Dorsal Fins

   Observe the two distinct dorsal fins. The first dorsal fin has 6-7 spines and often a prominent black spot, especially in males. The second dorsal fin is longer and soft-rayed.

2. 2

   Pelvic Fins

   Look for the fused pelvic fins forming a suction cup-like disc on the underside of the body, a key characteristic of gobies.

3. 3

   Coloration

   Note the overall dark brown to black coloration, often mottled. Males in breeding season are intensely black with iridescent blue/green spots on fins.

4. 4

   Head Shape

   The head is relatively large and broad, with eyes positioned high on the head.

Esplora Black Goby