Eucinostomus jonesii
Slender Mojarra
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Gerreidae (Mojarras)
Eucinostomus
Eucinostomus jonesii (Slender Mojarra)
Description
This species account was compiled from
Composite (multiple sources) (Carpenter, K.E. (ed.) 2002. The living marine resources of the Western Central Atlantic. FAO Species Identification Guide for Fishery Purposes. FAO, Rome.)
and processed using AI-assisted text extraction.
It may contain errors in spelling, punctuation, or formatting.
When citing, please reference the original source rather than this page.
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Synonymy
None / None.
Characters
Body fusi form, compressed, slender (depth 30.2 to 32.1% st andard length); least
depth of caudal peduncle 8.9 to 10.1% st andard length. Mouth strongly protrusible, maxilla usu ally not reach-
ing anterior margin of pupil; edge of preopercle smooth; preorbital bone smooth; premaxillary groove (an
unscaled median depression running on top of snout into interorbital space) continuous, not interrupted by
a transverse row of scales; 7 or 8 gill rakers (including 1 at angle but excluding rudiments at anterior end) on
lower limb of anterior gill arch. Scales extend forward of vertical line from anterior margin of orbit. Dorsal fin
moderately notched. Lateral-line scales usu ally 47 or more. Colour: distinct, dark, V-shaped mark on
snout; body silvery, greenish above with bluish reflections; sm aller individuals may have dusky diagonal bars
and blotches on upper half of sides.
Body shape: fusiform / normal.
Distribution
Bermuda, strays to Chesapeake
Bay, abundant from eastern Florida to sou thern
Brazil, including the Bahamas and Antilles; but
app arently largely absent from most of the Gulf
of Mexico, with few records from the western
Gulf of Mexico, sou thern Texas. Not recorded
from Venezuela.
Habitat Associations
This species typic ally occurs over s and bottoms and seagrass meadows in
high energy zones of ocean inlets and passes, on continental shelves, particularly in the surf zone. Does not
penetrate estuaries, and not euryhaline. Feeds predominantly on benthic invertebrates.
Biology
Maximum to 20 cm.
Apparently does not enter estuaries or freshwater and may occur in slightly deeper water, and on banks that are farther offshore than those usually inhabited by Eucinostomus argenteus (Ref. 7251).
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Least Concern (LC), assessed 2010-03-01. Resilience: High (Preliminary K or Fecundity.).
References
Böhlke, J.E. and C.C.G. Chaplin (1993) Fishes of the Bahamas and adjacent tropical waters. 2nd edition. University of Texas Press, Austin.
Robins, C.R. and G.C. Ray (1986) A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p.
Patzner, R.A. (2008) Reproductive strategies of fish. pp. 311-350. In Rocha, M.J., A. Arukwe and B.G. Kapoor (eds). Fish reproduction: cytology, biology and ecology. Science Publisher, Inc. Oxford. 631 p.
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