Shorefishes of the Eastern Pacific online information system

Español  Contact

Species: Bairdiella icistia, Ronco croaker, the Bairdiella

All Families:   All Genera:   All Species:

D 25-29
pectoral base - black spot
C: end straight
mouth opens at front, oblique
angle of preopercle: 2-4 strong spines
A: 2nd spine not to C

Bairdiella icistia (Jordan & Gilbert, 1882)

Bairdiella, Ronco croaker

Body elongate, oblong, compressed; head narrow, cavernous but firm to touch; snout short, blunt; mouth large (reaching to under rear edge of eye) a ltttle oblique, opens at front; chin without barbels, with 5 pores; mouth large (reaching to under rear edge of eye), a little oblique, opens at front; teeth conical, in narrow rows; top corner of gill opening notched; lower gill rakers 15-18, total 25-27, longest gill raker longer than ½ gill filament behind it; preopercle with  8-9 spines, including 2-4 strong spines at angle, the lowermost directed downwards and forward; dorsal fin X, I-II, 25-29, deeply notched between spines and rays; anal fin II, 8, second anal spine about as long as first soft anal ray, not reaching tail fin; tail fin with straight edge; scales rough, except smooth around eyes and on fins; pored lateral-line scales 49-54; the lateral line extends to the center of the end of the tail fin.

Color silvery with yellowish to clear fins; a dark spot at base of pectoral fins; upper lip and tip of lower jaw dusky.

Size: to 30 cm.

Inhabits inshore areas, including estuaries and river mouths; feeds on crustacean larvae, shrimps and fishes.

Depth: 1-20 m?

Central Baja and the Gulf of California to Guatemala.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Marine
  • Brackish
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom + water column
  • Bottom
  • Near Bottom
  • Mid Water
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Estuary
  • Water column
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Carnivore
  • Pelagic crustacea
  • Mobile benthic crustacea (shrimps/crabs)
  • Data
  • Bony fishes
Egg Type
  • Pelagic larva
  • Pelagic
  • No data
Global Endemism
  • All species
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • Cortez + Mexican provinces endemic
  • Continental TEP endemic
  • All species
  • Continent only
  • TEP endemic
  • Continent
  • Resident
Climate Zone
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 30
Depth Range Min
  • 1
Depth Range Max
  • 20