Come identificare Round Goby

Per identificare Round Goby (Neogobius melanostomus), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

elongated

Colorazione

Mottled brown, gray, and olive green, providing excellent camouflage against benthic substrates. The ventral side is typically lighter. Males often darken significantly during the breeding season, becoming almost entirely black.

Tipo di squame

ctenoid

Posizione della bocca

terminal

Caratteristiche distintive

Large, prominent head with a broad mouth., Single, prominent black spot on the posterior margin of the first dorsal fin., Fused pelvic fins forming a suction cup-like disc., Large, protruding eyes located high on the head.

Pinna dorsale

Two dorsal fins; the first is spiny with 6-7 spines, and the second is soft-rayed with 14-18 rays. The first dorsal fin has a distinct black spot posteriorly.

Pinna caudale

Rounded caudal fin.

Pinna pettorale

Large, fan-like pectoral fins.

Pinne distintive

Pelvic fins are fused into a single, anteriorly concave, suction-cup-like disc, characteristic of gobies.

Consigli per l'identificazione

1. 1

   Dorsal Fin Spot

   Look for a single, prominent black spot on the posterior end of the first dorsal fin. This is a key distinguishing feature.

2. 2

   Pelvic Fin

   Observe the pelvic fins; they are fused into a single, rounded, suction-cup-like disc, which is characteristic of gobies.

3. 3

   Head Shape

   Note the large, broad head and prominent, slightly bulging eyes.

4. 4

   Lateral Line

   The lateral line is typically incomplete or absent in gobies, but the sensory canals on the head are well-developed.

Esplora Round Goby