Chaetodon striatus Linnaeus, 1758
(Chaetodontidae, Perciformes)
The collection contains otoliths from 13 individuals of this species, ranging from 128 to 149 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 8 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Chaetodon striatus, with total length of A. 149mm; internal side A1; external side A2; profile of the ventral region A3; click the figures for larger version*
Morphology:
Shape: elliptic. Anterior region: angled-round (38%), peaked (38%), peaked-round (25%). Posterior region: rounded (63%), oblique to angled (13%), oblique (13%), flattened (13%). Dorsal edge: sinuate to entire (63%), lobed to sinuate (38%). Ventral edge: sinuate to entire. Profile: concave-convex. Rostrum and antirostrum orientation: in agreement. Rostrum: Developed. Antirostrum: Developed (50%), underdeveloped (50%). Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation descending (88%), horizontal (13%), opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like, cauda sinuous tubular (75%), strongly curved tubular (25%).
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.43 ± 0.21 | 3.23 | 3.81 |
OH / OL % | 55.52 ± 4.71 | 49.57 | 63.05 |
OT / OL % | 18.93 ± 1.81 | 16.82 | 22.22 |
OT / OH % | 34.15 ± 2.64 | 30.53 | 38.19 |
Circularity | 19.80 ± 1.32 | 17.59 | 21.92 |
Rectangularity | 0.69 ± 0.02 | 0.66 | 0.74 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.25.CHST.BAIII.CV2.4/1.6 (149 mm)
For more information about this species: