The Alvarez silverside (Atherinella alvarezi) is a freshwater fish of the family Atherinopsidae that grows up to 7 cm.
Description
The Alvarez silverside is a silverside (Atherinidae) from shallow coastal, brackish or fresh water of fresh and brackish water of Central America. The species has a slender, semi-translucent, silvery body with a shiny silver flank band and large eyes. As a schooling fish it swims in large groups near the surface and snaps at small zooplankton and insect larvae. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Alvarez silverside?
The Alvarez silverside has an elongate, eel-like body and is mainly silver-grey.
Where does the Alvarez silverside live?
The Alvarez silverside lives in fresh water and is mostly found around open water. North America: Mexico
How big does the Alvarez silverside get?
The Alvarez silverside grows to a maximum of about 7 cm.
Is the Alvarez silverside dangerous to humans?
No, the Alvarez silverside is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Atherinella
More from the family Atherinopsidae

Want the complete picture on the Alvarez silverside?
Point your camera at the fish and Fin names the species in seconds. Free, and the Alvarez silverside is one of 12,519 species in the app.