The Deep-bodied Pacific thread herring (Opisthonema libertate) is a saltwater fish of the family Clupeidae that grows up to 30 cm.
Eastern Pacific, in coastal and offshore waters near the surface, from California to Peru.
Description
The Pacific thread herring is a herring (family Dorosomatidae) of the eastern Pacific. The species grows to about 30 cm and has a laterally compressed, silvery body with a blue-green back and a greatly elongated last dorsal-fin ray, which gives it its name. It lives pelagically near the surface of coastal and offshore waters, down to above the bottom of the continental shelf, and forms dense schools. It is a filter feeder living on plankton. The species is one of the most abundant of its genus in the eastern Pacific and is of major commercial importance.
Frequently asked questions
How do you recognise the Deep-bodied Pacific thread herring?
The Deep-bodied Pacific thread herring has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Greatly elongated last dorsal fin ray (filament); forms dense shoals and is an important commercial species.
Where does the Deep-bodied Pacific thread herring live?
The Deep-bodied Pacific thread herring lives in the sea (marine waters) and is mostly found around open water. Eastern Pacific, in coastal and offshore waters near the surface, from California to Peru.
How big does the Deep-bodied Pacific thread herring get?
The Deep-bodied Pacific thread herring grows to a maximum of about 30 cm. On average the species is around 22 cm.
Is the Deep-bodied Pacific thread herring dangerous to humans?
No, the Deep-bodied Pacific thread herring is harmless to humans. None required: this species is harmless to humans.
Is the Deep-bodied Pacific thread herring edible?
Yes, the Deep-bodied Pacific thread herring is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
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Status & sources
Same genus Opisthonema
More from the family Clupeidae

Want the complete picture on the Deep-bodied Pacific thread herring?
Point your camera at the fish and Fin names the species in seconds. Free, and the Deep-bodied Pacific thread herring is one of 12,519 species in the app.