HomeFish encyclopediaRay-finned fishesHerringsAnchoviesSlough anchovy Slough anchovy (Anchoa delicatissima) Scientific name: Anchoa delicatissima Girard, 1854 The Slough anchovy (Anchoa delicatissima) is a brackish-water fish of the family Engraulidae. BiologyDorsal spines (total): 0; Anal spines: 0; Anal soft rays: 20 - 25. Body fairly elongate. Snout moderate, about 3/4 eye diameter; maxilla moderate, tip pointed, reaching onto inter-operculum, but not to edge of gill cover; gill cover canals of walkeri-type. Anal fin moderate, its origin usually somewhat before midpoint of dorsal fin base. A silver stripe along flank, about 3/4 eye diameter.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAnchoa delicatissimaFamilyEngraulidae (Anchovies)OrderClupeiformes (Herrings)ClassActinopterygii (Ray-finned fishes)Maximum length8.0Common length7.0Depth range0–50 m (0–164 ft)EnvironmentMarine; brackish; pelagic-neritic; depth range 0 - 50 mClimateSubtropicalDistributionEastern Central Pacific: Belmont Shores, Long Beach Harbor, California, USA south to Magdalena Bay on the Pacific coast of Baja California; not in Gulf of California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceHigh, minimum population doubling time less than 15 months (tmax=3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026