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).
The most common fish in gull diets were anchovies (Engraulis spp.), plainfin midshipman (Poricthys notatus), jacksmelt
(Trachurus symmetricus), and white croaker (Genyonemus lineatus), all of which were abundant in San Francisco Bay and its surrounding waters.
Brown rockfish, black rockfish, and jacksmelt
, Atherionopsis californiensis, were more important in Santa Cruz than in Monterey.
Incidental catches can include small sharks and dogfish, skates and rays, jacksmelt
, white croakers or kingfish (from Baja California to the Golden Gate), starry flounder (Santa Barbara to Oregon), or more rarely chinook salmon (Pacifica north).
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).
* Estimated Species Margin type age (yr) Stage Merluccius productus translucent 12 early (Pacific hake) Atherinopsis californiensis translucent 1 late (jacksmelt
) Sebastes flavidus (yellowtail translucent 14 mid-late rockfish) S.
Northern anchovy remained the most abundant fish species comprising nearly 47% of the total catch, followed by topsmelt at 27%, slough anchovy at 14%, jacksmelt
at 4%, shiner surfperch at about 2%, and giant kelpfish at approximately 1% of the total catch.
Comments.--The finding of jacksmelt
in the mouths of the streams of La Mision and San Rafael, represents the first mainland records in the peninsula of Baja California.