Range and Identity
The modern catalog treats Etrumeus teres as a synonym of Etrumeus sadina in western Atlantic waters. Older circumglobal records include distinct Pacific and other regional species. Those records should not be combined into one worldwide range or used indiscriminately for upper measurements.
Habitat and Behavior
Traditional accounts describe large schools in upper waters around coasts and shelf areas. An Ecuadorian offshore observation belongs outside the modern Atlantic scope and is not used here. Keeping the ocean region explicit prevents an old broad account from creating an unsupported range extension.
Food and Life History
Small planktonic crustaceans, including copepods and krill-like animals, are recorded foods. Eggs and larvae are pelagic. A maximum length from the historically mixed account is not presented as a verified modern species limit, and no independent maximum mass is inferred.
Field Note
Keep both scientific combinations with older records. They connect Atlantic Round Herring information while helping separate the different Etrumeus species now recognized in other oceans.
All Lakes With Round Herring
Browse lakes and reservoirs with documented Round Herring records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.
No published lakes are currently linked to this species in our confirmed records.