Centropomus undecimalis (Bloch, 1792)
(Centropomidae, Perciformes)
The collection contains otoliths from 19 individuals of this species, ranging from 146 to 382 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 16 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Centropomus undecimalis, with total length of A. 146mm; B. 250mm; C. 382mm; 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: peaked-round. Posterior region: oblique (44%), rounded (38%), angled-round (19%). Dorsal edge: sinuate to entire (38%), lobed to sinuate (31%), crenate to lobed (19%), sinuate (13%). Ventral edge: sinuate to entire (56%), entire (25%), lobed to sinuate (19%). Profile: concave-convex. Rostrum and antirostrum orientation: in agreement (69%), not applicable (31%). Rostrum: Developed. Antirostrum: underdeveloped (38%), Developed (31%), absent (31%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium elliptic (88%), rectangular (13%), cauda strongly curved tubular.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.94 ± 0.33 | 3.38 | 4.48 |
OH / OL % | 54.74 ± 1.69 | 51.66 | 57.46 |
OT / OL % | 14.01 ± 0.9 | 12.95 | 16.38 |
OT / OH % | 25.60 ± 1.69 | 22.54 | 29.43 |
Circularity | 17.95 ± 2.75 | 16.31 | 27.78 |
Rectangularity | 0.72 ± 0.01 | 0.70 | 0.74 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.1.CEUN.BAIII.PCR.1/1.14 (146 mm)
- 25.1.CEUN.BAIII.PCR.1/1.1 (250 mm)
- 25.1.CEUN.BAII.RAB.2/1.1 (382 mm)
For more information about this species: