red-eye round herring
Etrumeus sadina
Schooling sardine of the northwest Atlantic, from the Bay of Fundy to the Gulf of Mexico. It has a strong commercial fishery and goes to market fresh, salted and canned.
Also called: sardinha-redonda, sardina canalera, sardina japonesa, red-eye round herring, round herring
- maximum
- 33 cm
- depth
- 0–125 m
who is the red-eye round herring
Sardine of the family Dussumieriidae, which forms large schools in coastal waters and along the shelf edge, from 0 to 125 m. It reaches 33 cm, and the common size is around 25 cm. It is an epipelagic species that also appears at the surface. It feeds mostly on euphausiids and copepods, small plankton crustaceans. Eggs and larvae are planktonic. It has a strong commercial fishery, and is sold fresh, salted and canned, as well as being made into fishmeal.
Essential profile. Identification, where it occurs and rules, with data from FishBase and the cited regulations. Season, time of day, technique and bait are added once we have a good source for the red-eye round herring.
fun facts
- Eggs and larvae are planktonic, that is, they drift in the water.
identification
Elongated, nearly cylindrical silvery body, with an olive-green back. Scales come off easily. The pelvic fin has a W-shaped scute, and there are no scutes either before or after it. The isthmus, the area between the gills, has lateral edges or shoulders. These traits, plus the color and the rounded body, help identify the species.
Loading the next 7 days…
Each card shows the day's index (0 to 100) and, below it, a strip with the index for each hour, from 0h to 23h. from poor to excellent.
Essential profile: the index uses a general fish model (weather, sun, moon and tide), without a season or time of day specific to this species.
where found
In Latin America, it occurs in Cuba and Mexico, in the northwest Atlantic, from the Bay of Fundy to the Gulf of Mexico.
Habitat: Coastal waters and shelf edge, from 0 to 125 m, in large schools.
rules for the red-eye round herring
Summary of the regulations we found, with the source for each. Rules change; before keeping or transporting fish, check with the state environmental agency.
We found no species-specific rule beyond the region's general rules.
catch and release
catch and release Releasing the fish alive, quickly and with a wet hand. During a closed season it isn't always allowed: what the regulation says applies.
No danger to the angler. As it forms large schools and is a commercial catch, release it promptly if returned.
in the kitchen
It goes to market fresh, salted and canned, and is also made into fishmeal.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.00794, b = 3.03; FishBase (relação peso-comprimento bayesiana, estimativa da própria espécie)). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
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sources and references
Essential profile: size, length-weight, depth, countries and conservation come from FishBase and the cited regulations, and the texts were written from those sources. Season, time of day, sensitivities, technique and baits and lures are not included yet, because we did not find a good source for this species.
- scientific FishBase: Etrumeus sadina (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Etrumeus sadinaNames by country and language.