Identification
The slender body and bright lateral stripe give the fish its common name. Several silversides can look similar, so the stripe alone is not enough where related species occur together. This profile follows Menidia menidia.
Size and Weight
The reported maximum total length is 15 cm, about 5.9 inches. A common reported length is 11.5 cm, approximately 4.5 inches. A dependable maximum weight was not established, and no modelled mass is substituted for one.
Habitat and Natural Food
Schools occupy inshore waters along the Atlantic coast. Zooplankton provides food, linking these small fishes to larger predators that hunt in coastal shallows. Their small size makes their food-web role more notable than their value as an individual sport catch.
Development and Research
Experiments found that temperature during a sensitive period of larval development influences sex determination together with genotype. Cooler experimental conditions produced more females than warmer conditions. The result is an interaction, not a claim that temperature alone determines every fish’s sex.
Development Shaped by the Water
Atlantic Silverside research showed that environmental temperature can influence developing sex ratios. Genetic differences also matter. This species became an important example of how inherited biology and conditions experienced early in life work together.
All Lakes With Atlantic Silverside
Browse all lakes and reservoirs with confirmed Atlantic Silverside records in our database, listed alphabetically.
No published lakes are currently linked to this species in our confirmed records.