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Species: Menidia menidia, Atlantic Silverside

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D origin behind anus
A 20-27

Menidia menidia (Linnaeus, 1766)

Atlantic Silverside

Slender, elongate, compressed; top of snout without pits, pores or tubes; top jaw extendible, premaxilla with rear end greatly expanded, without expanded bony process above its center; teeth well developed, in bands; first dorsal V-VI, origin behind anus, but before anal fin origin; pelvics inserted nearer pectoral base than anal origin; segmented anal fin rays 23-26 (20-27, rarely 19), outer edge of fin straight; scales without scalloped edges; 39-47 (rarely 38) lateral scales.

Translucent green above, sometimes with cross-hatched pattern along top of back; pale to translucent below; a prominent silver stripe along side.

Reaches 17.8 cm.

Lives nearshore along beaches, inlets and estuaries, into brackish water, but migrates offshore (170 km) to deeper water during winter.

Depth range: 0-126 m.

Gulf of St Lawrence to central eastern Florida.

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  • Brackish
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Mid Water
  • Near Bottom
  • Near Surface
  • Surface
  • Water column only
  • Water column
  • Beach
  • Estuary
FishBase Habitat
  • Pelagic
Feeding Group
  • Carnivore
  • Data
  • Planktivore
  • Data
  • Zooplankton
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
Egg Type
  • Benthic
  • Data
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent only
  • Extends North of GC
  • GC non-endemic
  • All species
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 17.8
Depth Range Min
  • 0
Depth Range Max
  • 126