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Noun1.Atherinopsis - a genus of AtherinidaeAtherinopsis - a genus of Atherinidae    
fish genus - any of various genus of fish
Atherinidae, family Atherinidae - small spiny-finned fishes of both salt and fresh water
Atherinopsis californiensis, jacksmelt - a relatively large silversides of the Pacific coast of North America (known to reach 18 inches in length)
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References in periodicals archive ?
In the estuarine areas it can be confused with small Topsmelt, Jacksmelt, Atherinopsis californiensis, and California Grunion, Leuresthes tenuis.
The catch in that area was dominated numerically by jacksmelt (Atherinopsis californiensis, 39%) and Pacific herring (Clupea pallasii, 39%), with smaller landings of northern anchovy (Engraulis mordax, 6%), juvenile Chinook salmon (5%), and surf smelt (Hypomesus pretiosus, 2%).
Thus, Group 1 included northern anchovy, Pacific herring, topsmelt, jacksmelt (Atherinopsis californiensis), Mississippi silverside (Menidia audens), rainwater killifish, bay pipefish, Pacific staghorn sculpin, yellowfin goby, arrow goby (Clevelandia ios), longjaw mudsucker, and starry flounder (Platichthys stellatus).
Fecal samples collected in SFB indicate that harbor seals in this region feed on Pacific herring (Clupea pallasii), northern anchovy (Engraulis mordax), plainfin midshipman (Porichthys notatus), Pacific staghorn sculpin (Leptocottus armatus), white croaker (Genyonemus lineatus), yellowfin goby (Acanthogobius flavimanus), jacksmelt (Atherinopsis californiensis), and English sole (Pleuronectes vetulus) (Torok, 1994).
Group II included many of the more abundant species observed in impingement surveys across the Southern California Bight (MBC 2005a, MBC 2005b), including queenfish, walleye surfperch, jacksmelt (Atherinopsis californiensis), Pacific sardine (Sardinops sagax), Pacific pompano (Peprilus simillimus), white croaker, and topsmelt (Figure 4).