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Bigeye corvina (Isopisthus remifer) — Sciaenidae

Bigeye corvina

Isopisthus remifer
Family: Sciaenidae
LC · Least Concern

The Bigeye corvina (Isopisthus remifer) is a brackish-water fish of the family Sciaenidae that grows up to 36 cm.

Length
36 cm
Water
Brackish
Depth
10.0–60.0 m
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Eastern Pacific
Edibility
Commonly eaten

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Description

The silver weakfish is a croaker from the eastern Pacific, ranging from the Gulf of California to Peru. It grows to about 36 cm and has a streamlined, silvery body with a large mouth bearing canines and two separate dorsal fins. It lives in coastal water and the lower reaches of estuaries between about 10 and 60 metres depth and hunts fish, shrimp and squid. It is a food fish of minor commercial importance. The IUCN assesses the species as Least Concern (LC).

Frequently asked questions

How do you recognise the Bigeye corvina?

The Bigeye corvina has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Large mouth with canine teeth; two separate dorsal fins

Where does the Bigeye corvina live?

The Bigeye corvina lives in brackish water and is mostly found around mixed bottom. Eastern Pacific

How big does the Bigeye corvina get?

The Bigeye corvina grows to a maximum of about 36 cm. On average the species is around 25 cm.

Is the Bigeye corvina dangerous to humans?

No, the Bigeye corvina is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Bigeye corvina edible?

Yes, the Bigeye corvina is commonly eaten.

More photos

Bigeye corvina (Isopisthus remifer) — Sciaenidae — 2
iNaturalist ((c) Guillermo Joaquin Martinez Mendoza, some rights reserved (CC BY-NC))
Bigeye corvina (Isopisthus remifer) — Sciaenidae — 3
iNaturalist ((c) Daniel, some rights reserved (CC BY-NC))
Bigeye corvina (Isopisthus remifer) — Sciaenidae — 4
iNaturalist ((c) Daniel, some rights reserved (CC BY-NC))
Bigeye corvina (Isopisthus remifer) — Sciaenidae — 5
iNaturalist ((c) Alberto, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Bigeye corvina verified
Scientific name
Isopisthus remifer
Family
Sciaenidae
Other names
Corvina; Croaker; Silver weakfish verified

Appearance

Size class
Medium verified
Max length (cm)
36.0 verified
Average length (cm)
25.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Terminal sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
Two separate sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Mixed bottom sourced
Min depth (m)
10.0 verified
Max depth (m)
60.0 verified
Natural range
Eastern Pacific verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Fishes, shrimps and squid inferred
Social behaviour
Small groups inferred
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Near-bottom predator of coastal water; present year-round. sourced
Special features
Large mouth with canine teeth; two separate dorsal fins sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Fishing with baitfish or lures in coastal waters and estuaries. sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Isopisthus

More from the family Sciaenidae

Fin

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