Mugil curema Valenciennes, 1836
(Mugilidae, Mugiliformes)
The collection contains otoliths from 642 individuals of this species, ranging from 21 to 452 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 117 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Mugil curema, with total length of A. 29mm; B. 259mm; C. 422mm; 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: oblong (88%), elliptic (12%). Anterior region: angled-round (42%), peaked (21%), angled (17%), double-peaked (10%). Posterior region: rounded (88%), oblique-round (9%), angled-round (3%). Dorsal edge: entire (44%), sinuate to entire (25%), dentate to lobed (17%), lobed to sinuate (7%). Ventral edge: sinuate to entire (53%), dentate to lobed (30%), lobed to sinuate (11%), lobed (3%). Profile: concave-convex. Rostrum and antirostrum orientation: not applicable (64%), in agreement (36%). Rostrum: Developed (53%), underdeveloped (46%), absent (1%). Antirostrum: absent (64%), underdeveloped (29%), Developed (7%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position supramedian (98%), median (2%), orientation ascending (94%), horizontal (6%), opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like (79%), elliptic (21%), cauda sinuous tubular (85%), slightly curved tubular (15%), strongly curved tubular (1%).
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.65 ± 0.82 | 2.14 | 5.61 |
OH / OL % | 52.29 ± 6.29 | 41.69 | 70.90 |
OT / OL % | 14.99 ± 2.21 | 11.35 | 23.28 |
OT / OH % | 28.68 ± 2.42 | 22.78 | 35.06 |
Circularity | 21.38 ± 4.15 | 14.82 | 39.66 |
Rectangularity | 0.71 ± 0.04 | 0.46 | 0.78 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 17.1.MUCU.BAIV.PC.4/1.3 (29 mm)
- 17.1.MUCU.BAV.CER.1/1.1 (259 mm)
- 17.1.MUCU.BAI.RAB.1/1.1 (422 mm)
For more information about this species: