Cynoscion jamaicensis (Vaillant & Bocourt, 1883)

(Sciaenidae, Perciformes)

No Atlântico ocidental ocorre do Caribe até a Argentina, da costa até 100 m de profundidade. Vive em fundos de areia e ou lama, atingindo 50 cm de comprimento (Menezes & Figueiredo, 1980; Menezes et al., 2003; Bernardes et al., 2005). Alimenta-se de peixes e/ou presas pelágicas (Soares et al.; 2008).

The collection contains otoliths from 260 individuals of this species, ranging from 48 to 313 mm of total length. Click here to see the map of the sampling area for the individuals of this species. The following summaries contains data from 76 analysed otoliths. See more detailed data here (in portuguese).

Otoliths from Cynoscion jamaicensis, with total length of A. 48mm; B. 142mm; C. 250mm; internal side A1; B1; C1; external side A2; B2; C2; profile of the ventral region A3; B3; C3; click the figures for larger version*

Morphology:
Shape: elliptic. Anterior region: rounded. Posterior region: oblique-round (58%), rounded (42%). Dorsal edge: entire (49%), sinuate to entire (29%), lobed to sinuate (12%), lobed (8%). Ventral edge: entire (45%), sinuate to entire (28%), lobed (16%), lobed to sinuate (9%). Profile: plane-convex (82%), biconvex (18%). Rostrum and antirostrum orientation: not applicable. Rostrum: absent. Antirostrum: absent. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening pseudo-ostial, morphology heterosulcoid, colliculum heteromorphic, ostium lateral, cauda bent tubular (68%), strongly curved tubular (28%), slightly curved tubular (4%).
Description of the terms used

Morphometry:

Shape indices	Mean ± sd	Minimum	Maximum
OL / TL %	5.45 ± 0.48	4.71	7.84
OH / OL %	59.62 ± 7.45	49.00	75.07
OT / OL %	25.00 ± 2.15	20.96	30.19
OT / OH %	42.35 ± 4.6	33.21	53.71
Circularity	15.91 ± 1.14	14.33	20.40
Rectangularity	0.74 ± 0.02	0.71	0.78

Description of the abbreviations used

* Vouchers:
Collection identifier for the individuals shown on photography and drawings:

25.22.CYJA.PI.AF.6.3 (48 mm)
25.22.CYJA.PI.AF.15.10 (142 mm)
25.22.CYJA.PI.AF.4.1 (250 mm)

For more information about this species: