Gobiosoma bosc (Lacepède, 1800)

Scientific Nomenclature and Basal Traits

The naked goby, scientifically known as Gobiosoma bosc (Lacepède, 1800), is usually less than 2 inches in length and has no scales.

Pelvic Fin Structure

Its pelvic fins are connected by a membrane that forms a sucker-like disk, and this fin extends to a point between the pelvic fin base and the anus.

Body Coloration

Its body color ranges from pale yellow to murky brown, and it has between nine and ten vertical variable markings along its body.

Vertical Bar Visibility

These vertical bars may not be visible in individuals that have very light or very dark body coloration.

Primary Habitat Type

Naked gobies generally inhabit estuaries and coastal waters, and they almost exclusively live in brackish water habitats.

Geographic Distribution

They are distributed across the Western Atlantic, ranging from Connecticut to Mexico.

Winter Behavior

During the winter, naked gobies may bury themselves in bottom sediments.

Juvenile Distribution

Young naked gobies are commonly found in estuaries south of New Jersey, and only occur sporadically in estuaries north of New Jersey.

Reproduction Period

Naked gobies reproduce between May and November each year.

Reproductive Mode

They are oviparous, meaning they lay eggs.

Egg Laying and Guarding

Females lay their eggs inside empty oyster shells, and males guard the eggs until they hatch.

Post-Hatching Larval Behavior

After hatching, free-swimming larvae may migrate upstream and school over oyster reefs before settling to the bottom.

Typical Lifespan

The typical lifespan of a naked goby is approximately four years.