Strongylura marina (Walbaum, 1792)
(Belonidae, Beloniformes)
The collection contains otoliths from 7 individuals of this species, ranging from 180 to 621 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 5 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Strongylura marina, with total length of A. 283mm; B. 621mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: rectangular (80%), trapezoidal (20%). Anterior region: double-peaked (80%), peaked (20%). Posterior region: flattened (40%), oblique-round (40%), rounded (20%). Dorsal edge: crenate to lobed (40%), lobed to sinuate (40%), crenate to entire (20%). Ventral edge: lobed (60%), dentate to lobed (40%). Profile: plane-convex (80%), concave-convex (20%). Rostrum and antirostrum orientation: in agreement (80%), not applicable (20%). Rostrum: Developed. Antirostrum: Developed (80%), absent (20%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median (80%), supramedian (20%), orientation ascending, opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like (80%), elliptic (20%), cauda straight tubular.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 0.91 ± 0.02 | 0.88 | 0.93 |
OH / OL % | 55.39 ± 3.44 | 49.82 | 59.16 |
OT / OL % | 14.29 ± 1.31 | 12.09 | 15.22 |
OT / OH % | 25.79 ± 1.58 | 23.87 | 27.10 |
Circularity | 23.48 ± 1.83 | 21.62 | 26.47 |
Rectangularity | 0.72 ± 0.02 | 0.70 | 0.76 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 19.1.STMA.BAIII.PC.5/1.4 (283 mm)
- 19.1.STMA.BAI.TP.1/1.1 (621 mm)
For more information about this species: