Actinopterygii (ray-finned fishes) > Atheriniformes
(Silversides) > Atherinopsidae
(Neotropical silversides) > Atherinopsinae
Etymology: Atherinops: Greek, atherina, the Greek name for the eperlane; 1770 + Greek, ops = appearance (Ref. 45335); affinis: affinis which means related - in this case to fishes of the genus Atherina (Ref. 6885).
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; pelagic-neritic; depth range ? - 26 m (Ref. 96339). Subtropical; 51°N - 22°N, 129°W - 107°W (Ref. 96339)
Eastern Pacific: Vancouver Island in British Columbia, Canada to Baja California, Mexico and the Gulf of California.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 37.0 cm TL male/unsexed; (Ref. 9273); common length : 28.0 cm TL male/unsexed; (Ref. 9273); max. reported age: 9 years (Ref. 72477)
Common in bays, muddy and rocky areas and kelp beds, also in estuaries (Ref. 36497). Form schools. Adults feed on zooplankton (Ref. 9273), while juveniles feed on algae and kelp fly larvae (Ref. 4930). Demersal spawner in nearshore habitats (Ref. 56049). Oviparous, with planktonic, primarily neustonic larvae (Ref. 36497). Eggs are attached to spawning substrate and to one another by adhesive filaments (Ref. 36497).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 12.1 - 23.2, mean 18.7 (based on 122 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00459 - 0.01811), b=2.97 (2.79 - 3.15), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 2.8 ±0.28 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=2; tmax=7; Fec = 1,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .