Sand goby

D-Sandgrundel; GB-Sand goby; DK-Sandkutling; PL-Babka mała; LT-Smėlinis grundalas; LV-Mazais jūrasgrundulis; EST-Väike mudil; RU-Малый бычок-бубырь; FIN-Hietatokko; S-Sandstubb

Characters

1) Pelvic fins are grown together to form a sucking disc.
2) Basis of both dorsal fins are clearly separated from each other.
3) Dark spot on end of first dorsal fin.
●) Back already scaled in front of first dorsal fin.
●) Front edge of sucking disc serrated.
●) Body colouration sandy-brownish with unregular darker pattern.
Usually 4 to 6 cm, max. up to 9 cm length.

Similar species

Common goby - back in front of first dorsal fin without scales; front edge of pelvic fins (sucking disc) smooth.

Painted goby - distinct double row of black spots on dorsal fin; front edge of pelvic fins (sucking disc) smooth.

Two-spotted goby - dark, yellow bordered spot on caudal peduncle.

Biology

Spawns in-between February and July often in mussel shells; males defend the clutch. The individuals become sexually mature with 7 to 12 months and reach an age of 2 years.

Diet

Feeds on small bottom-living organisms.

Importance

Due to their abundance an important prey for bigger, commercially important fish species like eel and cod.

Remarks

Gobiids resemble each other much; this holds especially true for poorly coloured specimens and juveniles. Often even specialist have much difficulties to clearly identify the species.